Operator’s Manual
www.mechmaxx.com
WARRANTY
TABLE OF CONTENTS
INTRODUCTION
SAFETY WARNING SIGNS
FRONT, REAR, LEFT, AND RIGHT
2
2
3
SAFETY
5
CONTROLS
27
4
SIGNAL WORDS
1
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OPERATIONS
33
TRANSPORTATION 37
MAINTENANCE 38
TROUBLESHOOTING
44
PARAMETERS 46
ACCESSORIES
49
EXPLODED VIEW & PARTS LIST 51
33
BEFORE START OF OPERATIONS
33
START AND STOP OF ENGINE
34
OPERATIONS OF MACHINE
37
LOADING AND UNLOADING
38
OVERVIEW
39
SERVICE DATA
41
LIST OF WEARING PARTS
42
CRITICAL SAFETY PARTS
44
NO BATTERY POWER
45
RESTART AFTER REFUELING
45
FLASHING OF WARNING LAMPS
46
BASIC PARAMETERS
47
OVERALL DIMENSIONS OF MACHINE
48
OPERATING RANGE
49
PRECAUTIONS FOR OPERATIONS
50
PERIODICAL REPLACEMENT OF
HYDRAULIC OIL
41
PERIODICAL REPLACEMENT OF
HYDRAULIC OIL
3
FOREWORD
SERIAL NUMBER
3
4
DESIGNATED OPERATIONS
RUN-IN PERIOD
4
PRODUCT FEATURES
4
4
NOTES ABOUT READING OF THIS MANUAL
PRECAUTIONS DURING PREPARATIONS
8
GENERAL PRECAUTIONS
5
9
SAFETY MEASURES AT START
10
OPERATION PRECAUTIONS
15
PRECAUTIONS FOR PARKING
16
PRECAUTIONS DURING TRANSPORT
17
PRECAUTIONS FOR MAINTENANCE
22
SAFETY SIGNS
24
SIGN ON PRECAUTIONS
27
COMPONENT NAME
28
FUSE CASE, FUEL FILLING PORT, SEAT
28
SEAT
29
ELECTRICAL CONTROL PANEL
29
SWITCHES
30
JOYSTICKS AND PEDALS
31
ACCESSORY
TABLE OF CONTENTS
2
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SAFETY WARNING SIGNS
SAFETY WARNING SIGNS
SIGNAL WORDS
This sign denotes a safety warning.
The information behind the sign includes important safety information.
Please read and understand this information to prevent personal injuries or deaths.
The machine owner or employer is responsible for thoroughly instructing every operator on the correct and
safe operation of all equipment. All personnel operating this machine shall sufficiently understand the
contents of this manual.
Before operating the machine, all operation personnel must receive the guidance on related functions of
excavator.
Before operating this machine in a working site, learn and practice how to use the machine controls
correctly in a safe and spacious place.
Improper methods of operation, inspection, or maintenance can result in injury or death. Before any
operation, checking, or maintenance of machine, please read and understand this manual.
Please always carry this manual with you. It’s preferable to preserve this manual on the machine. If this
manual is lost or damaged, please immediately order a new manual from a dealer. At the transfer of this
machine, please ensure to hand this manual over to the new owner.
The safety information on this manual and machine identifications is indicated by words “Danger”,
“Warning”, and “Notice”. The meanings of these signal words are as below:
Important:
The word “Important” is intended to alert the operation and maintenance personnel of the
possible damages of machine and its components.
It’s impossible for us to predict all possibly existed dangers. Therefore, the warnings in this manual or on
this machine can’t cover all possible accidents. Therefore, during the operations of machine, ensure to
take cautions and abide by all conventional safety measures to prevent harms to machine, operation
personnel, or other personnel.
“Danger” denotes high dangerous level, for which the negligence will result in death
or serious injury.
DANGER
“Warning” denotes medium danger level, for which the negligence will probably result
in death or serious injury.
WARNING
“Notice” denotes low danger level, for which the negligence will result in minor or
medium injuries.
NOTICE
FOREWORD
SERIAL NUMBER
Machine No.: Engine No.:
INTRODUCTION
3
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This manual describes the operation, inspection, and maintenance of the machine, and the safety precau-
tions to be followed during operation.
Important: Do not remove the machine’s serial number nameplate. Observe the serial numbers of machine
and engine and record them in the blank area below.
In some details, this manual probably differs from the manual attached on the machine in use.
Please be noted that the information contained in this manual and the parameters of machine are
subject to changes without further notice.
INTRODUCTION
FRONT, REAR, LEFT, AND RIGHT
DESIGNATED OPERATIONS
PRODUCT FEATURES
RUN-IN PERIOD
4
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The front, rear, left, and right of the machine indicated in this
manual are based on the status sitting in the driver seat,
with the bulldozing blade visible in the front.
For the first 100 hours of use (the break-in period), follow these instructions. Operating a new machine
without a proper break-in can reduce acceleration performance and may shorten the machine’s life.
This machine is mainly applied for following operations:
Digging
Ditching
Side ditching
Leveling
Loading
Small size, flexible operation
Can be equipped with a variety of attachments
Sufficiently warm up the engine and hydraulic oil.
Avoid heavy-load and rapid operations.Maintain the load at approximately 80% of maximum load
capacity during operations.
Do not start, accelerate, steer, or stop suddenly, unless it’s really necessary.
INTRODUCTION
Front
Right
Rear
Left
GENERAL PRECAUTIONS
SAFETY
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You are responsible for abiding by all applicable safety laws and regulations and for properly operating,
inspecting, and maintaining the machine.
As a matter of fact, all accidents are caused by the non-compliance with basic safety rules and precau-
tions. Most accidents can be avoided by identifying potential hazards in advance.
Please read and understand all safety information related to the prevention of accidents. Operate the
machine only after you fully understand how to operate it, inspect it, and maintain it.
During the operations, checking, or maintenance of machine, upon detection of any machine abnormality
(Such as unusual noise or vibration, odors, abnormal instrument readings, smoke or oil leaks, error
warnings, and abnormal display on the control panel), immediately notify a sales or service dealer and
take appropriate measure. Do not operate the machine before the abnormality is solved.
To maintain the performances and prevent the earlier wear of machine, please abide by the following
operating conditions.
Appropriate Clothing and Personal Protective Equipment
Abiding by All Safety Regulations
Upon detection of machine abnormality
Operating Temperature Range
The machine must be operated, checked, and maintained by trained and qualified personnel.
During the operations, checking, and maintenance of machine, ensure to understand and abide by all
rules, regulations, precautions, and safety measures.
Do not operate, check, or maintain the machine under the adverse influence of alcohol, drug, medicine,
or fatigue or under sleepy status.
Do not operate the machine when the outside temperature is above +113°F (+45°C) or below +5°F
(-15°C). Operating the machine above +113°F (+45°C) can
cause the engine to overheat and reduce engine
performance. Additionally, the hydraulic oil can become
excessively hot and damage the hydraulic system. Operat-
ing the machine below +5°F (-15°C) can harden rubber
components (such as seals) and cause premature wear or
damage. If you need to operate the machine outside this
temperature range, consult your dealer.
Do not wear loose clothing or wear decorative articles that will probably hitch to any joystick or motion
part.
Do not wear clothing contaminated with oil or gasoline, as it is flammable.
SAFETY
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As required by the work environment, wear safety shoes, a
helmet, safety goggles, a filter mask (respirator), thick
gloves, hearing protection (earplugs or earmuffs), and other
protective equipment. When using a grinder, breaker hammer
(or other powered tools like compressed air), wear appropri-
ate protective equipment such as safety goggles and a filter
mask. Flying metal chips or debris can cause serious injury.
Wear hearing protection during machine operation. Prolonged exposure to high noise levels can cause
hearing damage or even complete hearing loss.
Learn how to use the gestures of specific operation needs and designate the person responsible for
making gestures.
Install a fire extinguisher and a first-aid kit on the machine,
and ensure you know how to use both properly.
Learn how to extinguish fire and handle accident.
Know how to contact emergency aid and fabricate the
emergency contact list.
Please ensure that all guardrails, shelters, and doors are
installed properly and securely. Before operating the
machine, please repair or replace damaged parts.
Know how to use safety lock handle, seat belt, and other
safety devices and understand the correct operation
methods.
Do not disassemble any safety device, unless for the
purpose of checking and repair. Always keep all safety
devices under good working condition.
All personnel must completely understand all gestures.
The operator must respond to the gestures of designated person only. However, the operator must
abide by the stop gesture made by anyone in all cases.
The signaler must stand in a clearly visible place while making the gestures.
Before standing up from the driver seat to open/close windows or disassemble/install the lower
window, lower the working device onto the ground lift up and lock the safety lock handle, and stop the
engine. When the safety lock handle is lowered down (Unlocked), the accidental touch of any joystick
will result in sudden movement of machine and cause serious injuries or deaths.
Please be noted that, even if the safety lock handle is placed at locking position, the bulldozing blade,
boom, and auxiliary hydraulic controls can’t be locked. Do not touch such controls accidentally.
Installation of Fire Extinguisher and First-Aid Kit Fulfill the
preparations for fire and accident.
No Disassembling of Safety Devices
Setup of Signaler and Flagman
Precautions for Standing up from or Leaving Driver Seat
SAFETY
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When raising or lowering the safety lock handle, be careful not to
touch any joystick. Before leaving the driver’s seat, lower the
attachment to the ground, lift the safety lock handle to the
locked position, and shut off the engine. Also, be sure to remove
the key, close all doors and hoods, and keep the key with you in
a designated safe place.
Keep fuel, oil, grease, and antifreeze away from flame. Fuel is highly
flammable and extremely dangerous.
Handle these flammable liquids away from lit cigarettes, matches,
lighters, and other sources of flame or sparks. Do not smoke or use
open fire while handling fuel or performing the operations of fuel
system. Do not leave the area while refueling or adding oil.
Do not remove the fuel tank cap or refuel while the engine is running
or until it has cooled down. In addition, Do not spill fuel onto any hot
surface of the machine or onto any electrical component.
Immediately clean up any spilled fuel or oil thoroughly.
Check for any fuel or oil leaks. Fix any leaks and clean the machine before operating. Move any flammable
materials to a safe place before grinding, cutting, or welding.
Do not cut or weld any pipe that may contain flammable liquids. Thoroughly clean it with a non-flammable
cleaning solution before welding or cutting.
Remove all wastes and impurities from machine. Ensure that there is no oil contaminated rag or other
inflammable on the machine.
Handle all solvents and dry chemicals (Foam fire extinguisher) as per the manufacturer’s procedures
indicated on the containers. Operate in a well-ventilated place.
Never use fuel for cleaning purpose. Always use non-inflammable solvent.
Please open doors and windows for thorough ventilation during the handling of fuel and the cleaning of oil
stain or paint. Preserve all inflammable liquids and materials in a safe and well-ventilated place.
The short-circuit of electric system will probably result in fire. Daily check the wire connections for
looseness and damage. Re-tighten loose connectors and cable clamps. Repair or replace damaged wires.
Guard against Fire and Explosion Dangers
Toxic Exhaust Gas from Engine
Fire accident caused by pipelines: Ensure that the clamps, protection devices, and cushion pads of
hoses and pipes are securely fixed. In event of looseness, the hoses and pipes will be damaged due to
vibration or contact with other parts during operations. This will probably result in spray of high
pressure oil to cause fire accident or harms.
Do not operate the engine in an enclosed place with poor ventilation.
If the natural ventilation is not possible, install ventilation fan, fan, extended exhaust pipe, or other
ventilation device.
SAFETY
PRECAUTIONS DURING PREPARATIONS
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Before starting work, understand the conditions of the work
zone to ensure safety.
Understanding of working zone
Checking of Bridge Strength
Always Keeping Clean Machine
Daily Checking and Maintenance
Check the terrain and ground conditions in the work area.
For indoor operations, check the building structure and
when necessary take safety measures.
Make sure to stay away from hazards and obstacles such
as open ditches, underground pipelines, trees, cliffs,
overhead cables, and roads in areas prone to falling rocks
or landslides.
Locate any underground gas lines, water pipes, or
electrical cables in consultation with the site administra-
tor. If necessary, discuss with the administrator to
determine what safety measures are needed to be taken to
ensure safety.
When operating on a road, be sure to consider the safety of
pedestrians and other vehicles.
Before operations in water or driving through shallow
rivers, check the water depth, ground firmness, and flow
rate in advance. Understand more operation description
information with reference to the
“Precautions during Operations”
Before operations, fulfill the designated checking and when
necessary repair immediately.
In event of operation failure due to malfunction or engine
malfunction, immediately stop the engine as per stop
procedure and park the machine securely, till the malfunc-
tion is repaired. Precautions within Cab (If installed)
Eliminate all loose objects and unnecessary devices in the machine.
Wipe away lubricating oil, grease, mud, snow, and ice, in order to prevent accident due to slip.
Remove dusts, lubricating oil, and grease from engine portion to prevent fire accident.
Clean the area around operator's seat and remove all unnecessary objects from the machine.
The failure to find out or repair the abnormalities or damages
of machine will cause accidents.
Please check the permissible load before driving on bridges or
structures. If the strength is insufficient, reinforce the bridges
or structures.
- Use a signaler and/or signals.
- Isolate the working zone against the access of non-au-
thorized personnel.
SAFETY
SAFETY MEASURES AT START
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Sit in the driver’s seat and start the engine.
Before entering the cab, wipe off any mud or grease from your shoe soles. Operating the pedals with
muddy or greasy shoes can cause you to slip and result in an accident.
Do not leave any parts or tools lying around the driver’s seat.
Do not use a mobile phone while driving or operating the machine.
Do not bring any flammable or explosive materials into the cab.
Do not leave a lighter in the cab, as it could explode if the interior temperature rises.
Do not jump on or off the machine. Do not attempt to get on
or off a moving machine.
Always face the machine when climbing up or down. Use the
steps/footplates and grab the handrails, maintaining three
points of contact (for example, two hands and one foot).
Do not use the safety lock handle or any joystick as a
handhold.
Before starting the machine, keep all non-authorized
personnel away from this zone. Start the engine only after
the safe start is confirmed by checking the following items.
Walk around the machine and alert any maintenance person-
nel or bystanders nearby. Start the engine only after
confirming that no one is in the vicinity.
Sound the horn to alert any people nearby.
Adjust the seat until it locks securely.
Fasten the seat belt.
Ensure the parking brake is engaged and all control levers
and pedals are in neutral.
Verify that the safety lock handle is in the locked position.
Make sure no one is near the machine.
Start and operate the machine only from the driver’s seat.
Do not attempt to start the engine by short-circuiting the
starter’s terminals.
Support your body weight by three-point safety posture while
getting on/off the machine.
SAFETY
OPERATION PRECAUTIONS
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Start by Jumper Cable
After Start of Engine
For Cold Weathers
Guarantee of Good Visibility
Jump-Starting – Only jump-start the machine using the recommended procedure. Improper use of jumper
cables can result in a battery explosion or unexpected machine movement.
Refer to the ‘In the Event of No Battery Power’ section for more detailed operating instructions.
After starting the engine, perform the following operations and checks in
an area clear of people and obstacles. If any malfunction is detected,
shut down the engine according to the proper procedure and report the
issue.
Warm up the engine and hydraulic oil. Check that all gauges and warning
lights are functioning normally, and listen for any unusual noises. Test
the engine speed control. Operate each control lever and pedal to ensure
everything is functioning properly.
Be cautious of slippery conditions: frozen ground, footplates, and handrails can be slick. In cold weather,
do not touch any metal part of the machine with bare hands — your skin could freeze to the metal and
cause serious injury.
Do not use ethyl ether or starting fluid on the engine. The starting fluid can cause explosion and serious
injuries or deaths.
Warm up the engine and hydraulic oil.
Operating joysticks without warm-up will result in slow or inappropriate reaction or movement of machine
to cause accident.
Checking of Visibility before Operations of Machine
During operations in a dark place, turn on the working lamp and
headlamp of machine and when necessary install additional
lighting devices. In event of poor visibility due to severe
weathers (Such as fog, snow, rain, and haze), stop the
operations of machine till the visibility turns good.
SAFETY
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Do not carry people on the machine
Checking for Safe and Reliable Working Zone before
Operations
Checking of Chassis (Tracks) before Traveling
Safe Traveling
Clean the windows, mirrors, lamps, and camera to keep good
visibility.
Adjust the mirrors and camera to optimal positions to ensure
that the driver sitting in the driver seat can see the rear view
(Blind spot). The non-authorized modification or the installa-
tion of non-approved attachments will probably impair the
visibility. The operator’s visibility must conform to the require-
ments of ISO 5006.
Before operating the traveling joystick/pedal, ensure that the bulldozing blade is in front of the driver
seat. Please bear in mind that the operation direction of the traveling joystick/pedal with bulldozing blade
behind the driver seat is reverse to that with bulldozing blade in front of driver seat.
All personnel are prohibited to sit on any part of machine at any
time during traveling Or operations of machine.
Verify the performance limits of machine.
Set up a signaler at the road shoulders, narrow places, or
vision- obstructed places. Do not allow any person to access
the turning radius or path of machine.
Sound the horn to indicate your movement intention. There are
blind zones behind the machine.
Before driving backward, check the safety in the area behind
machine and ensure there is no person behind the machine.
The bulldozing blade shall be lifted during traveling. Retract the
bucket working device as shown in above diagram and lift the
bucket by 30~40cm off the ground.
Do not slew during the traveling. If it’s necessary to operate
the bucket working device during traveling, operate at
sufficiently low speed to ensure the complete control at all
times.
Avoid driving over obstacles whenever possible. If it’s
necessary to drive over obstacles, keep the bucket operating
device near the ground and travel at low speed. Do not drive
over any obstacle that will incline the machine by 10° or larger.
On rugged roads, drive the machine at low speed and avoid the
sudden startup, stop, and direction change. Otherwise, the
working device will probably come into contact with the ground
to cause unbalance and damage of machine or destruct the
structure in surrounding area.
SAFETY
Downhill
Bulldozing
blade
Bulldozing blade
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Precautions for Traveling on Slopes
Special Cautions for Operations of Machine on Ice/Snow
No Movement of Bucket over Personnel
While traveling on slopes, take cautions to prevent the rollover
and gliding of machine.
Do not drive the machine on a slope steep enough to cause
instability of machine. Please be noted that, in the actual
applications, the performances of machine on a slope will be
deteriorated due to severe working conditions.
Keep the driver seat facing towards the up slope direction
while climbing up a slope. Keep the driver seat facing towards
the down slope direction during down slope traveling. In both
cases, pay special attention to the ground ahead of the
machine during traveling.
While traveling on a slope, lower the bucket to 20~30cm off
the ground.
While climbing up a steep slope, extend the bucket working
device to the front position. In event of an emergency, lower
the bucket onto the ground and stop the engine of machine.
When walking on slopes or ramps, drive slowly. Reduce engine speed when going downhill. Do not reverse
the machine down a slope.
Do not change direction on slopes or cross slopes. First return to the flat surface, and then take another
path.
When walking on a gentle slope covered with grass or dead leaves, or when walking on wet metal plates
or frozen ground, the machine may slip. Make sure that the machine does not stop laterally on a slope.
If the machine stalls on a slope, return the operating levers to the neutral position, and then restart the
engine.
While traveling on snowy or icy roads, drive at low speed and avoid the sudden startup, stop, and direction
change.
In snowy regions, the road curbs and the roadside objects are buried in the snow to become invisible. In
addition, there is a danger of machine rollover or collision with covered objects. Therefore, always operate
with cautions.
There is a danger of rollover or snow entrapment while driving the machine into thick snow. Drive with
cautions and do not drive over road curbs or entrap in the snow.
For frozen soil surface, the ground becomes soft when the temperature rises, which will probably result in
rollover of machine and entrapment of operator in the machine.
While parking the machine on a unstable ground, lower the bulldozing blade.
Moving the bucket over the personnel has a danger of splash-
ing of loaded material or the sudden falling of bucket.
SAFETY
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Guarantee of Driver’s Safety during Loading
Keeping a Safe Distance from Overhead High-Voltage Cables
Close Observation on Dangerous Working Conditions
Do not load before the driver reaches a safe place.
Do not swing or position bucket above personnel or cab. Load from the
backdoor of trucks.
Never close any part or loaded material of machine to high-voltage
cables unless all safety measures specified by local and national
authorities are already taken. There is a danger of electric shock and
death when any person approaches to the machine that is discharging
electric spark or is near or in contact with power supply.
Always keep a safe spacing between machine and high-voltage cables.
Before starting operations, please verify the relevant operation safety
procedures with local power grid.
Consider all electric cables as high-voltage cables. Even if it’s known or
believed that the power supply is cut off or the cable is clearly grounded,
consider such cables also as live cables.
If the machine is too close to high-voltage cables, set up a signaler to
sound warnings. Keep all personnel within operation zone away from
machine and loaded material.
Pay special attention to the underground high-voltage cables.
Never dig on the bottom of any high embankment. It’s really dangerous
because such operation will probably result in surface collapse.
Do not operate in any place with falling stone danger.
Keep a safe spacing between machine and edge of digging site. Do not
dig the ground ahead of machine.
During the operations near a cliff or road curb, to ease the escape in any
event, form a right-angle between tracks and cliff or road curb and place
bulldozing blade in the front.
Do not access any soft ground area. This will probably result in
inclination of machine due to dead weight to cause rollover or ground
entrapment.
Keep away from unstable ground (Cliffs, road curbs, and deep ditches).
If the ground collapses due to machine weight or vibration, there is a
possible danger of machine falling or rollover. Please bear in mind that
the soil turns infirm after heavy rain or explosion.
The ground on the top of embankment and the ground around and on top
of the dug ditches are also infirm.
Do not perform demolition operations beneath the machine. There is a
possible falling danger of machine when the ground becomes unstable.
Before the operations on the top of any building or other structure, check
the strength and structure. It will cause serious harms or destruction if
the building or structure collapses.
SAFETY
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Danger during Operations on Slopes
No Lateral Slewing (Swing) with Bucket Heavily Loaded
Please pay attention to the objects above your head
Not Designed for Lifting Application
Do not perform demolition operations above your head. There is a falling
damage of damaged parts or collapse danger of building to cause serious
harms or destruction. Do not perform the demolition operations by the
impact force of bucket working device. The splashed material fragments
and the damaged bucket working device have a danger of serious harms
During operations on slopes, slewing or operating the working device can
probably result in instability or rollover of machine.
Avoid operations on slopes whenever possible.
Leveling operation zone
If the bucket is fully loaded with material, avoid slewing towards the
down slope direction. Otherwise, it will deteriorate the machine stability
and probably result in rollover.
The machine is more vulnerable to rollover in lateral direction than
longitudinal direction.Do not laterally slew (swing) when the bucket
working device is heavily loaded. Especially, do not laterally slew (swing)
on a slope. When the machine is equipped with breaking hammer,
grinder, or extended bucket arm, the attachment end is heavier than that
with standard bucket. For machine with such heavy end, do not face the
bucket arm (boom) towards down slope direction for digging or towards
lateral direction for operations.
During operations under bridges, in tunnels, near cables, or indoors,
guard the boom and bucket arm against impact with any overhead
object.
This machine is specially designed for digging operations. Therefore, it’s
not installed with safety devices for lifting operations. Take special
cautions while using this excavator for lifting operations.
Do not overload during lifting. The overload will result in rollover of
machine to cause serious injuries or deaths.
All rated lifting capacities are based on the condition of using this
machine on a firm and level ground. The user’s is recommended to
reserve an appropriate allowance for specific working conditions, in
order to ensure the safe lifting operations. The soft or uneven ground,
non-level status, lateral load, dynamic or sudden load, dangerous
environment, and personnel experience are included. Before operating
the machine, the operation personnel and other personnel shall be really
familiar with the Operation Manual. The safe operation regulations of the
machine shall be strictly followed in all cases. If the chain or lifting
device is incorrectly connected, the bucket connecting rod or the lifting
device will probably fail to cause serious injuries or deaths.
SAFETY
Landfill
PRECAUTIONS FOR PARKING
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Park the machine on firm, level ground and engage the parking brake.
If you must park on a slope (or tilt the machine on a slope), make sure
the machine is secure and block/chock it to prevent movement. If
parking the machine on a road or street, use barricades, cones,
warning signs, or lights to keep it visible even at night and to prevent
collisions with other vehicles.
Complete these steps before leaving the machine:
lower the bucket and blade to the ground, raise the safety lock handle
to the locked position, shut off the engine and remove the key, then
lock the cab and hood and take the key with you.
Please pay attention to flying objects
Precautions for Towing
Safe parking
While using this machine as a crane, do not attempt to pull out a stump
from the ground. For this application, the load applied onto the machine
is completely unknown. Do not allow any person to stand on or beneath
the lifted object or close to the operation zone.
This machine is not installed with any protective device to guard the
operator against the harms of flying objects. Do not operate this
machine in any dangerous place in which the operator is probably subject
to the impact of flying objects.
During towing, the improper operations, the incorrect use of rope, or the
improper checking will cause serious injuries or deaths.
The breakage or cracking of rope can cause danger. Use wire ropes
compatible with the towing force.
Do not use any kinked, twisted, or even damaged rope. Do not suddenly
apply heavy load onto the rope.
Please wear safety gloves during the handling of rope.
Ensure that an operator is assigned each on the towing machine and the towed machine.
Do not operate the towing operation on a slope. Keep all personnel away from the rope during towing.
Please refer to the section “Towing” to understand more description information.
SAFETY
PRECAUTIONS DURING TRANSPORT
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Safe loading/unlocking of machine
Safe Lifting of Machine
Safe Transport of Machine
The machine will probably roll over or fall off during loading and
unloading. Be sure to take the following safety measures:
Select a solid and level ground and keep a sufficient spacing
from the road curb. Secure loading ramps of adequate
strength and size to the truck’s bed.
The ramp incline must not exceed 15°. If the ramps bend or
sag excessively, support them with blocks or stands.
Do not attempt to load or unload the machine using its boom or attachments. Doing so could cause the
machine to roll over or fall off the trailer.
Keep the truck bed and ramps clean and free of oil, sand, ice, snow, or other debris to prevent the machine
from sliding. Also, clean the tracks before loading.
Chock the transport truck’s wheels with wedges to prevent movement. When loading or unloading, drive
the machine slowly in first gear (low speed) and follow the signals of a spotter. Do not turn or change
direction on the ramps.
Do not swing (rotate) the machine while on the ramps, or it may roll over.
Slewing (swinging) the machine on the cargo body of the truck will probably result in unstable legs of the
machine. Therefore, operate slowly.
Chock the tracks securely with wedges, then tie down the machine to the truck bed with ropes or chains.
Use the proper hand signals when lifting the machine.
Check the lifting equipment daily for any damaged or missing parts, and replace components if necessary.
Use slings or chains with sufficient rated capacity for the machine’s weight when lifting.
Lift the machine according to the procedure described below. Do not use any other method, or the machine
may become unbalanced.
Refer to the ‘Lifting of Machine’ section for more information. Do not lift the machine if anyone is still on
it.
Lift slowly to prevent the machine from tipping over. While lifting, keep all personnel away from the work
zone, and never move a suspended machine over a person.
During transport, abide by all applicable safety rules, vehicle codes, and traffic laws. Consider the
combined length, width, height, and weight of the transport truck and loaded machine when selecting a
route.
Do not accelerate or brake the transport truck suddenly, and avoid driving at high speed. Such actions
could cause the loaded machine to shift or become unstable.
SAFETY
Stop block
15°or less
Distance
between
Ramp
Fix to suspension
parts
PRECAUTIONS FOR MAINTENANCE
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Warning Information of “No Operation” Sign
Use of Correct Tools
Periodically Replaced Critical Safety Parts
Explosion-Proof Lamps
No Access of Non-Authorized Personnel
Preparations of Working Zone
While someone is inspecting or servicing the machine, an unauthorized
person starting the engine or moving a control lever could cause a
serious injury.
Before performing maintenance, shut off the engine and remove the
key, keeping it with you.
Affix a “Do Not Operate” warning tag in a highly visible place, such as on
the ignition switch or on a joystick.
Do not use damaged or worn-out tools, or any tool that is not intended
for the job. Always use tools that are proper for the maintenance task.
Replace the fuel hoses at regular intervals. Fuel hoses deteriorate over
time, even if no obvious damage is visible. If you see any signs of wear,
replace the hose immediately, regardless of the normal schedule. For
more details, refer to the section “List of Critical Safety Parts.”
While checking the fuel, lubricating oil, coolant, and battery electrolyte,
always use explosion-proof work lights to prevent igniting fumes.
Failure to do so could result in an explosion, causing serious injury.
During operations, the non-authorized personnel are prohibited to
access the working zone. Take cautions during grinding, welding, and
use of hammer. You will probably be injured by the flying fragments from
the machine.
Select a stable and level working zone. Ensure the appropriate illumination conditions. For indoor
operations, keep well ventilated. Remove obstacles and dangerous goods. Clear slippery areas.
Always Keeping Clean Machine
Please clean the machine before maintenance. Stop the engine before cleaning the machine. Cover the
electric parts against water ingress. The water ingress into the electric parts will probably result in short-
circuit or malfunction. Do not clean the battery, electronic control units, sensors, connector, or cabby
water or steam.
Stop of Engine before Maintenance
While the machine is working or the machine is not working but the engine is running, avoid lubricating or
further adjusting the machine.
If the maintenance requires the running of engine, assign two operators for teamwork and keep contact
with each other.
SAFETY
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Keep Away from Moving Parts
Secure Fixing of Machine and Possibly Falling Parts
Fixing of Working Device
Steady Placement of Opened Engine Hood and Cover
Have one person seated in the driver’s seat, prepared to shut off the
engine immediately if needed. That person must be careful not to touch
any controls unless absolutely necessary.
The other operator for the maintenance must keep the body and
clothing away from the moving parts of the machine.
Keep away from all rotating and motion parts. The entanglement of
hands or tools into rotating or moving parts will probably cause
accidents of serious injuries or even deaths.
Tools or other objects that fall into the fan or fan belt will be crushed or
thrown. Never throw or insert anything into the fan or the fan belt area.
Before performing any maintenance under the machine, lower all
attachments (work equipment) to the ground (or their lowest
positions) and chock the tracks.
If you must work under a raised machine or attachment, always secure
it with blocking (wooden cribbing), jacks, or other firm supports. Do not
go under the machine or attachment until it is firmly supported.
This operation is especially important for the hydraulic cylinder
operations.
During the repairs and replacements of bucket teeth or side teeth, to prevent the accidental movement
of machine, securely fix the working device.
Before operations within the machine, please securely fix the engine hood or machine hood. Keep the
engine hood or cover closed under windy weather or while parking the machine on a slope.
Placement of Heavy Weights at Steady Place
Precautions for Refueling
If it’s necessary to place temporarily heavy weights or attachments onto the ground during disassembling
or installation, please ensure to place them in a steady place. Keep the non-authorized personnel away
from the place for storage of such objects.
The smoking and open fire are prohibited during refueling and near the refueling point.
Do not disassemble the fuel tank cap or refuel while the engine is running or is not cooled down. Do not
splash fuel to any high temperature surface of machine.
Refuel the fuel tank in a well-ventilated place. Do not top up the fuel tank. Leave an expansion space for
the fuel.
Any overflown fuel shall be wiped away immediately.
Tighten the fuel tank cap securely. If the fuel tank cap is missing, replace with original cap only. The use
of non-authorized fuel tank cap with poor ventilation will cause internal pressure in the fuel tank. Do not
use fuel for any cleaning purpose. Use correct fuel grade based on the season.
SAFETY
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Slowly loosen the bleeding plug to relieve the pressure of oil tank.
While disassembling connector or plug or disconnecting hose, stand on one side, loosen slowly to
gradually relieve internal pressure, and then take out.
The engine oil or oil plug will probably spray out under the internal pressure of traveling motor oil tank.
Please slowly loosen the oil plug to relieve the internal pressure.
The leakage of lubricating oil or fuel can result in fire accident.
Do not distort, bend, or impact any hose.
Do not use any distorted, bent, or cracked pipeline, metal pipe, or hose,
otherwise it will probably result in burst. Re-tighten any loose connec-
tor.
Please stop the engine and wait for the machine to cool down before
maintenance.
The engine, exhaust pipe, radiator, hydraulic pipes, sliding parts, and
many other machine parts are really hot when the engine is just
stopped. Touching such parts can cause scalding.
The engine coolant, hydraulic oil, and other fluids are also under high
temperature and high pressure status.
Take cautions not to touch the hydraulic oil while loosening engine hood
or connector.
Operating the machine under such condition will cause out-spray of hot
oil to result in scalding or injuries.
Do not disassemble the radiator cap or drainage plug when the coolant is hot. Stop the engine and wait
for the engine and coolant to cool down. Slowly loosen the radiator cap to relieve the internal pressure and
then take it out.
Take caution against internal oil pressure. After the stop of engine, the pressure in the hydraulic oil pipes
can hold for a long time.
Before the maintenance, thoroughly relieve the internal pressure.
The high pressure of hydraulic oil can penetrate skin and eyes to cause serious injuries and blindness or
even death. Please bear in mind that the hydraulic oil permeating from orifices is nearly invisible to naked
eyes. While checking for leakage, wear goggles and thick gloves and protect the skin by paper boards or
plywood to protect against the harms of spraying hydraulic oil.
The hydraulic oil penetrating into your skin must be cleared by a doctor familiar with such injuries with
surgical method within several hours.
Disassembling cap or filter or disconnecting pipeline before the pressure relief of hydraulic system will
probably result in out- spray of hydraulic oil.
Handling of Hoses
Absolution Caution during Handling of High Temperature and High
Pressure Parts
Absolution Caution during Handling of High Temperature and High Pressure Parts
Caution against Internal Oil Pressure
Pressure Relief before Operations of Hydraulic System
SAFETY
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In the track pensioner, the grease is injected under high pressure.
If the tension is not adjusted by the following designated procedure, the
grease relief valve will probably fly out to cause injuries.
The track pensioner is installed with a high strength spring. If the track
pensioner is disassembled carelessly, the spring will spring out to
cause serious injuries. Do not disassemble the track pensioner.
Take special cautions while handling the high pressure nitrogen stored
in the tank. The improper handling will probably result in explosion of
nitrogen to cause serious injuries. Please strictly abide by the following
safety measures:
Take special cautions while handling the high pressure nitrogen stored in the tank. The improper handling
will probably result in explosion of nitrogen to cause serious injuries. Please strictly abide by the following
safety measures:
In event of accidental contact with eyes, immediately flush by clean water and quickly seek for medical
treatment. In event of accidental swallowing, drink a lot of water or milk and immediately seek for
medical treatment.
If the sulfur acid comes into contact with your skin or clothing, immediately flush by a lot of water.
The battery contains sulfur acid. The accidental touch will harm your eyes or skin.
While hammering hard metal parts such as pins, bucket teeth, side teeth, and bearings, please wear
protective articles including goggles and gloves.
While hammering pins and bucket teeth, ensure there is no person in surrounding area.
Never loosen the grease pipe fittings.
Slowly loosen the grease relief valve. Do not rotate it for >1 turn.
Do not place your face, arms, legs, or body in front of the grease
relief valve.
If no grease flows out when the grease relief valve is loosened, the
valve is malfunctioned.
Do not break up or disassemble.
Keep away from open fire and fire source.
Never drill hole, weld, or melt.
Guard against physical vibration, such as hammering, rolling, and
falling.
Bleed the sealed air before handling the cylinder body.
During the use of hammer, the pins and the metal fragments will probably fly out. It will probably cause
serious personal harms.
Guard against Splashed Fragments during Use of Hammer
Guard against High Pressure Grease
No Disassembling of Track Pensioner
Operations of Additional Devices
Disconnection of Battery Cables
Caution during Handling of Battery
SAFETY
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Wear goggles and gloves during handling of battery.
The battery can generate inflammable hydrogen to probably cause explosion. Keep away from fire
sources including open fire, spark, and ignited cigarette.
Use a flashlight to check the electrolyte level.
Ensure to turn off the starter switch and stop the engine before checking or handling battery.
Never touch the electrodes by any metal tool or object, in order to prevent short- circuit.
The loose electrodes can generate electric spark. Ensure to tighten any loose electrode.
Ensure that the battery cover is securely covered.
If the battery is frozen, do not charge the battery or attempt the jumper start of engine, otherwise it
will probably cause explosion. Before use, heat the frozen battery to 15°C.
Do not use the battery when the electrolyte level is below the lower limit. Otherwise it will speed up
the internal aging and shorten the life of battery. In addition, it can lead to burst (explosion).
Do not fill the distilled water till the level is above the upper limit. Otherwise the electrolyte will leak
out. The contact with such electrolyte can harm your skin or corrode the machine parts.
Clean the surrounding area of electrolyte level marking by a wet cloth and check the level. Do not clean
by a dry cloth, otherwise it can cause electrostatic accumulation and combustion or explosion.
To guarantee the safe operation of machine for a longer time, add the oil and fulfill the checking and
maintenance periodically. To promote the safety, periodically replace the critical safety parts,
including hoses and seat belts. To understand more details, please refer to the section “Periodically
Replaced Critical Safety Parts”.
“Periodically replaced critical safety parts” refers to the parts aged, worn, and functionally deteriorat-
ed after repeated use. The performances of such parts will change along with time. These characteris-
tics of such parts can cause serious mechanical damages or personal harms and the remaining lives
of such parts can’t be judged by merely appearance checking or operation hand-feel.
Upon detection of any visible damage on the appearance, please replace the “periodically replaced
critical safety parts”, even if the designated replacement period is not reached.
To start the engine by battery charging cable, ensure to connect the cable correctly as per following
procedure. The incorrect connection of cable can cause discharging and battery explosion.
Keep the “Malfunctioned machine” and “Rescue machine” away from mutual contact.
Never touch the positive (+) and negative (-) electrodes of battery charging cable with each other or
with the machine.
During connection, firstly connect the positive electrode of battery charging cable to positive (+)
terminal. During disconnection, firstly disconnect the negative (-) terminal (grounding terminal) from
the negative cable.
Ensure to connect the cable clamps securely.
Connect the last clamp of battery charging cable to a place as far as possible from the battery.
To start the engine with battery charging cable, always wear goggles and gloves.
Use the battery charging cable and clamps of dimensions suitable to the battery capacity. Never use
damaged or corroded battery charging cable or clamps.
Ensure that the battery capacity is same for the “Malfunctioned machine” and “Rescue machine”.
Periodically Replaced Critical Safety Parts
Jumper Start with Battery Charging Cable
SAFETY
SAFETY SIGNS
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The welding operations, if necessary, must be fulfilled by competent personnel in a working site with
complete equipment. To prevent damaging any machine part by over-high current or electric spark, please
abide by the following precautions.
The direct contact with harmful chemicals will cause serious harms. The harmful chemicals used in this
machine includeoils/greases, battery electrolyte, coolant, paint, and adhesive. Please dispose the
harmful chemicals carefully and properly.
To guarantee the safety of operator and operation personnel in the working zone, please set up the
following safety signs (markings) at some portions of machine. Walk around the machine with this
manual and observe the contents and placement locations of these safety signs. Please review these
signs and operation instructions contained in this manual jointly with the machine driver.
1. Precautions for adjusting caterpillar band tension:
this sign is located on both sides of caterpillar band
beam.
The pressure in the oil cylinder of the belt tensioner is
very high. Adjustment or disassembly of the belt
tensioner must be carried out in accordance with the
operator's manual. Incorrect operation may cause
personal injury.
Disconnect the battery cables before electric welding.
Do not apply 200V or higher voltage continuously.
Connect the grounding point within 1m reach from the welding area. Do not connect the grounding
terminal near the electronic control device/instrument or connector.
Ensure there is no seal ring or bearing between welding area and grounding terminal.
Do not connect the grounding terminal to the any place near the working device pin or hydraulic
cylinder.
Before the welding of machine body, disconnect the connector of electronic control device.
Ensure to collect the drained oil of machine into a container.
The improper treatment of waste oil will pollute the environ-
ment.
While disposing harmful objects, including lubricating oil, fuel,
coolant, solvent, filter, and battery, please abide by the applica-
ble laws and regulations.
The safety signs shall be clean, clear, and easily legible.
Asking for Welding Repair
Waste Disposal
Disposal of Harmful Chemicals
Schematic diagram for safety signs:
SAFETY
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2. The grease filling sign is located on the key structure lubrication
diagram:
3.Pay attention to warning labels such as fuel refueling precautions,
load warnings, movement/operation warnings, high-voltage line
warnings, instructional labels, and road speed/height warning signs.
These signs are located on the gasoline tank cover.
4. Sign away from turning area:
This sign is located on the rear counterweight.
▲ No one is allowed to stand within the rotating area of the mini-excavator.
▲ Do not damage or remove the sign from the mini-excavator.
5. Fuel sign:This sign is located at the fuel tank filler.
▲ Turn off the engine when filling fuel, and keep away from all open
flames when filling fuel.
▲ Pay attention to view the precautions on the fuel label.
▲ Do not damage or remove the sign from the mini-excavator.
6.No one is allowed to stand in the operation area: this sign is
located on both sides of the working arm.
SAFETY
SIGN ON PRECAUTIONS
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7.Stay away from the excavation area: this sign is located on both
sides of the bucket arm.
8.Hydraulic tank sign: this sign is located on the housing at the
hydraulic oil tank.
9.Danger sign for hydraulic oil tank : this sign is located on the tank
cover plate.
The precautions recorded in this manual and the label with symbol posted on the mini-excavator are
important items that may lead to personal accidents. If the label with symbol is dirty or falls off, you
must purchase it from the local sales store and post it in the designated position.
The operation manual determines the matters needing special attention when using the mini-excavator
as follows:
SAFETY
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It means that failure to observe the precautions will result in death or serious injury.
DANGEROUS
It means that failure to observe the precautions will result in death or serious injury.
WARNING
It means there is a risk of injury if precautions are not followed.
NOTICE
It means that if the precautions are not observed, the mini-excavator will be damaged or
cause failure.
PRECAUTION
It means other supplementary instructions that are helpful for use.
SUPPLEME
1. Battery maintenance sign:
2. Daily inspection:
Before using the mini-excavator, please read and understand the operation manual carefully to ensure
safe operation. For safe operation, please observe the above precautions and attach the supplement sign
here to ensure safety first.
▲ please confirm whether there are abnormal faults (such as oil
leakage, loose bolts and nuts, loose electrical wiring, end wires,
terminals, etc.) during the last use.
If there is a fault, please dispose it accordingly.
▲Please use the specified brand for fuel and grease.
Children are not allowed near the device
Beware of acid corrosion
Refer to instructions
No fire
Wear protective glasses
Beware of explosive gases
Please read the instructions carefully before use
Note: when using this mini-excavator, please turn off the power in time to prevent battery loss from
bringing unnecessary trouble to you.
SAFETY
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3. Operation diagram for working device
▲Check whether the mini-excavator control mode is consistent with that indicated on the label. If there
is a difference, replace the label before operating the mini-excavator to match the mini-excavator control
mode.
▲If the mini-excavator is not operated according to this procedure, it may cause casualties (refer to the
operation warning).
4. When pulling up the bucket, no one is allowed to enter under the bucket. When pulling up the bucket,
please do not touch the overhead wires or obstacles. In particular, death may be caused by electric shock
when touching wires, so please pay attention to this matter.
5. Take safety as the guideline, do not drive when you are drinking, taking medicine and in poor health,
otherwise it will cause accidents.
SAFETY
COMPONENT NAME
CONTROLS
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Up frame
1. Seat
2. Engine hood
3. Hydraulic oil tank
4. Fuel tank
5. Track
6. Drive wheel
7. Track roller
8. Traveling motor
9. Bulldozer blade
10. Cylinder of blade
11.Guide the wheel
12. Bucket
13. Bucket cylinder
14. Arm
15. Arm cylinder
16. Boom
17. Boom cylinder
18. Swing joint
19. Swing cylinder
20. Hydraulic circuit
Working deviceChassis
CONTROLS
1
2
3
5
8
6
7
11
10
9
15
16
13
17
4
18
19
12
20
14
FUSE CASE, FUEL FILLING PORT, SEAT
SEAT
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During the refueling into the fuel tank, keep away from heat source and open fire and
do not smoke.
Refuel the fuel tank in a well-ventilated place. Stop the engine before refueling.
Any overflown fuel shall be wiped away immediately.
Do not top up the fuel tank. Leave an expansion space for the fuel.
Tighten the fuel tank cap securely.
WARNING
Fuse Case
Open
This case is functioned to protect the electric system against over-current.
1. Insert the hood key and turn it counterclockwise to unlock the maintenance cover.
2. Lift the hood lock and lift the maintenance cover.
3. Locate the fuse box.
Close
Fuel filling port
Opening
1. Unlock the limit lever and close the maintenance cover.
2. Insert the hood key and turn it clockwise to lock the maintenance cover.
1. Insert the hood key and turn it counterclockwise to unlock the maintenance cover.
2. Lift the hood lock and lift the maintenance cover.
3. Hold the fuel tank cap and turn it counterclockwise to unlock the fuel cap.
Closing Fasten the fuel tank cap and turn it clockwise to lock the fuel cap.
A. Adjust the backrest angle
1. Stand up straight and sit back on the seat.
2. Adjust the backrest to the angle you want by rotating the handle
B. Front and back adjustment
1. Pull up the adjustment lever (2), slide the seat back and forth, and
adjust it to the position you want when operating the machine.
2. Loosen the adjustment handle (2) at the position you want to fix the
seat.
Adjustment and Fixing of Seats (For high-end seats only)
WARNING
CONTROLS
1
2
ELECTRICAL CONTROL PANEL
SWITCHES
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NO.
1
2
3
4
Voltmeter
Hour meter
Lamp switch
Key switch
The battery voltage should be about 12V, if the voltage is too low or too high, it
may affect the normal operation of the excavator
Display working hours, the range is 0-9999.9h
Control light switch
Control excavator start and stop
NOTEDESCRIPTION
Panel Name and Description
Precautions
Starter Switch
This instrument is a water-proof instrument, featuring stable performance and high conciseness and
elegance, and is an intelligent instrument developed specially for small excavators. To guarantee the
stable data and prolong the life of instrument, please notice the following issues:
1. Do not disassemble the instrument without permission.
2. Never brutally hammer or knock the instrument.
3. Guard against external damages.
4. Keep the control panel clean. Any organic solvent or corrosive liquid, including gasoline, should be wiped
off immediately to prevent corrosion of the panel.
5. Should you have any question during use, please timely contact service personnel.
Important: Do not rotate the starter key from OFF to ON and then from ON
to OFF repeatedly within a short time, otherwise it will probably result in
engine malfunction.
CONTROLS
1 2 43
JOYSTICKS AND PEDALS
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Safety lock handle
Accelerator joystick
Control Mode Bulldozing blade joystick
OFF …… This position is used to stop the engine and insert and withdraw the starter key.
ON …… Engine running position. All electric devices are functional at this position.
START …… Engine running position. Upon release of key, the switch automatically returns to ON.
If the coolant temperature is too low, rotate counter-clockwise the key, hold for 10~15s, and then release
before start. Rotate the key to ON and then to START to start the engine.
This device is functioned to lock the operations of bucket working device and machine slewing. When
pushing the lever forward, except for the walking lever, the other levers cannot work
Used to control engine speed. (A)...low idle (B)...Maximum speed Joysticks
Use this joystick to operate the bulldozing blade.
(A) … Lower the bulldozing blade.
(B)… .Lift the bulldozing blade.
Before standing up from the driver seat to adjust the operator’s seat, lower the
working device to the ground, lift up the safety lock handle to lock it, and stop the
engine. When the safety lock handle is lowered down (Unlocked), the accidental
touch of any joystick will result in sudden movement of machine and cause serious
injuries or deaths.
Please be noted that, even if the safety lock handle is placed at locking position, the
bulldozing blade, boom, and auxiliary hydraulic controls can’t be locked. Do not
touch such controls accidentally.
While lifting up or lowering down the safety lock handle, take cautions not to touch
any joystick
Before leaving the driver seat, lower the working device onto the ground, lift up the
safety lock handle to locking position, and stop the engine. Meanwhile, ensure to
withdraw the key, close the doors and hoods, and carry the key with you and then
preserve it in a designated place.
WARNING
Before starting operations, please carefully check and
confirm the joystick mode to be used.
The descriptions in this manual use the ISO mode of
machine.
WARNING
CONTROLS
A
B
This right pedal is used for hammer operation.
Note: Make sure you have and correctly installed the breaker device. Step on
the pedal forward, the breaker will start to work, release the pedal, and the
breaker will stop.
Side swing control work device left and right skewing.
A. The working device is set off to the left.
B. The working device is deflection to the right.
Flip the cover to the outside to lock the foot pedal so that it cannot be
stepped on.
Flip the cover to the inside to expose the pedals, and then you can step on
the pedals.
When the pedal is not in use, hold the pedal cover at locking position. If it’s
not locked, the accidental depressing of pedal will probably result in
accidents.
Auxiliary hydraulic pipeline (If installed)
ACCESSORY
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Traveling Joystick
Auxiliary hydraulic pedal
Pedal lock
Before operating the traveling joystick, ensure that the
bulldozing blade is in front of the driver seat. Please bear
in mind that the operation direction of the traveling
joystick with bulldozing blade behind the driver seat is
reverse to that with bulldozing blade in front of driver
seat.
Use these two levers to move forward or backward and
change direction.
WARNING
CONTROLS
A
A
Disconnecting the pipelines before the pressure relief of hydraulic system will probably result in out-
spray of hydraulic oil.
Disconnection of Hydraulic Circuits
Relieve residual pressure
(1) ... Auxiliary hydraulic pipeline Shut-off valve
(S): Close
(0): Open
Connection of Hydraulic Circuits
To connect the attachment hydraulic pipeline, please operate as per following procedure:
1. Relieve the residual pressure from system and then close the shutoff valve.
2. Take out the plug.
3. Connect the attachment hydraulic pipes to ports (a). While installing a hydraulic breaking hammer,
connect the oil inlet port to port (a).
4. Open the shutoff valve. While installing a hydraulic breaking hammer, open the selector valve (1).
5. After connections, fully bleed the air from hydraulic pipes.
a. Start the engine and run at low idling speed under no-load condition for 10min.
b. During the running of engine at low idling speed, operate the hydraulic auxiliary switch repeatedly (for
approximately 10 times) to bleed the air from hydraulic pipes.
c. Stop the engine and wait for at least 5min, till the air bubbles overflow from the hydraulic oil in the oil
tank. Important: If applicable, follow the attachment manufacturer’s procedure to bleed the air.
6. Check for presence of oil leakage.
1. Relieve the residual pressure from system and then close the shutoff valve.
2. Disconnect the pipelines from ports.
3. Install the plug.
After using the auxiliary hydraulic circuit, there is residual pressure in the circuit. This is called residual
pressure. Before disconnecting the pipeline, release the residual pressure.
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After the stop of engine, immediately press all auxiliary hydraulic pedals and 2nd auxiliary switch for
several times to relieve the pressure in the auxiliary hydraulic circuit.
Slowly loosen the bleeding plug to relieve the internal pressure of hydraulic oil tank.
While disconnecting hoses, stand on one side and loosen slowly. Slowly relieve the internal pressure
before disassembling. These pipelines transport the hydraulic oil needed to operate hydraulic breakers
or other working devices.
CONTROLS
Getting on/off machine
Walk-Around Checking
Start of Engine
Do not jump on or off the machine. Do not attempt to get on or off a moving machine.
While getting on/off the footplates, hold the handrails to support your body weight and maintain
three-point balance posture (Hands and feet) for your body.
Do not use safety lock handle or any joystick as handrail.
All warning lamps turn on for 1s and the warning tone is issued for
2s. The instruments start working.
Press the lamp switch and check and ensure that the boom lamp
turn on.
Before the first start of engine each day, fulfill one walk-around checking.
Daily Routine Checking
Before the first start of engine each day, fulfill one walk-around checking. Refer to page from 65 to 67
“Maintenance, daily routine inspection”.
1. Adjust the seat to comfortable operating position.
2. Check and ensure that the safety lock handle is at locking position.
3. Check and ensure that all joysticks and pedals are in neutral
position.
4. Insert the key into starter switch, rotate to ON position, and then
check as below:
If a lamp fail to turn on or a warning lamp fails to sound, the lamp bulb
or wire is Probably damaged.
Important: Do not run the starter motor continuously for >15s. If the engine fails to start, wait for 60s
and then attempt to restart the engine.
Important: If the engine stops due to shortage of fuel, please add fuel, rotate the key to ON for 60s, and
then rotate it to START position. Running the starter motor for a long time before the supply of sufficient
fuel will cause start failure of starter motor.
BEFORE START OF OPERATIONS
START AND STOP OF ENGINE
OPERATIONS
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Keep all personnel away from working zone.
Sound the horn to alert the personnel around machine.
WARNING
OPERATIONS
Normal Start
Joystick Mode (ISO Mode)
1. Pull the accelerator joystick to neutral position.
2. Rotate the starter key to START position to start the engine.
3. After the engine is started, release the key. The key will automatically return to ON position.
4. Check and ensure that all warning lamps are already off.
5. Return the accelerator joystick
Before starting operations, please carefully check and confirm the joystick mode to be used.
The descriptions in this manual use the ISO mode of machine.
OPERATIONS OF MACHINE
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OPERATIONS
A
B
Operations of Traveling Joystick
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Drive leftward Drive rightward
Back up to right
Lower boom
Lift boom
Extending track
Retracting track
Safety lock locked
Safety lock
unlocked
Auxiliary oil
circuit
work/stop
The working
device swings
from side to side
Load bucket
Dump bucket
Back up to left
Extend arm
Retract arm
Slew leftward upper
frame
Slew rightward upper
frame
Swing leftward the
boom
Lower bulldozing
blade
Lift bulldozing
blade
Swing rightward the
boom
Do not allow any person to access the turning radius or path
of machine.
There are blind zones behind the machine. To reverse the
machine, if necessary, slew the cab to check the safety and
ensure there is no person behind the machine.
Before operating the traveling joystick, ensure that the
bulldozing blade is in front of the driver seat. Please bear in
mind that the operation direction of the traveling joystick
with bulldozing blade behind the driver seat is reverse to
that with bulldozing blade in front of driver seat.
Remove all obstacles from the path of machine. Move the
machine back and forth
1. Pull the accelerator joystick to increase the engine speed.
2. Fully lower the safety lock lever to release the lock.
3. Retract the bucket and lower to 30~40cm off the ground.
4. Lift the bulldozing blade.
5. Operate the traveling joystick as per following procedure.
When the bulldozing blade is in the front of cab:
To drive forward: Pull forward the joystick. To drive backward:
Pull backward the joystick.
OPERATIONS
A
B
Bulldozing blade
Parking
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Park the machine on a level, solid, and safe ground. Set the parking device. If it's
necessary to park the machine on a slope, block the track by wedges to prevent
movement of machine.
When the safety lock handle is unlocked, the accidental touch of any joystick will
result in sudden movement of machine and cause serious injuries or deaths.
Please be noted that, even if the safety lock handle is placed at locking position, the
bulldozing blade, boom, and auxiliary hydraulic controls can’t be locked. Do not
touch such controls accidentally.
WARNING
Do not stop the machine hastily, unless in event of
emergency. Stop the machine at the optimal timing
whenever possible. Slowly place the left and right
traveling levers to neutral position. Stop the machine
CAUTION
When the bulldozing blade is in the rear of cab: To drive forward: Pull
backward the joystick.
To drive backward: Pull forward the joystick.
Pivot Steering
Turn left when parking:
To turn forward left: push the right traveling lever;
To turn back left: pull the right traveling lever.
Turn right when parking, same operating to operate the left
traveling lever.
Turn left during traveling:
To turn left during traveling forward:
Place the left joystick to neutral position. To turn left when
traveling backward: Place the left joystick to neutral position.
To turn right during traveling, operate the right traveling lever by
same operation method of left traveling lever.
Rotate in situ
Rotate left in situ: pull left traveling lever backward and push the
right traveling lever forward.
Rotate right in situ: pull right traveling
lever backward and push the left traveling lever forward.
OPERATIONS
TRANSPORTATION
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LOADING AND UNLOADING
The machine will probably roll over or fall off during unloading. Ensure to take the following safety
measures:
During the loading or unloading of machine, please ensure to
use ramps or platform and abide by following procedures.
1. Securely apply the parking device of transport truck and
block the wheels by wedges.
2. Place the ramps securely onto the truck cargo body. The
inclination of the ramps shall not exceed 15°.
3. Align the center of truck cargo body with the center of
machine and align the center of ramps with center of tracks.
4. Ensure that the bulldozing blade will not touch the ramps.
5. Lower the bucket working device as low as possible and take
cautions not to impact it with the transport truck.
6. Reduce engine speed.
7. According to the signaler’s signals, drive the machine
straightly up or down along the ramps in 1st gear (low speed).
8. Load the machine to designated position of transport truck.
Select a solid and level ground and keep a sufficient spacing from the road curb.
Fix the ramps of sufficient strength and dimensions to the cargo body of truck. The inclination of the
ramps shall not exceed 15°. If the ramps deflect downward excessively, please support the ramps by
supports or cushion blocks.
Do not load or unload the machine by working device. Otherwise, it will probably result in rollover or
falloff of machine.
Keep the truck cargo body and the ramps clean without oil, sand, ice/snow, or other impurity, in order
to prevent the side slip of machine. Clean the tracks.
Block the wheels of transport truck by wedges to prevent movement.
While loading or unloading the machine, drive the machine slowly in 1st gear (low speed) as per the
signals of the signaler.
Do not change direction on ramps.
Do not slew/swing on ramps. Otherwise the machine will probably roll over.
Slewing/swinging the machine on the cargo body of truck will probably result in unstable legs of
machine. Therefore, operate slowly.
If possible, lock the cab doors after loading. Otherwise the cab doors will probably open during the
transport.
Plug securely the tracks by wedges and then fix the machine to the truck cargo body securely by ropes
or chains.
TRANSPORTATION
Stop block
15°or less
Distance
between
Ramp
Fix to suspension
parts
MAINTENANCE
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ITEM
Engine oil
Engine oil filter
Engine gasoline pre-filter
Engine gasoline filter
Engine air filter
Traveling motor gear oil
Slewing motor gear oil
Hydraulic oil
Pilot filter
Return oil filter
Oil-intake filter
50 500 1000 1500 2000 2500 3000
NEW EXCAVATOR WORKING HOURS
SUBSEQUENT
REPLACE PERIOD
OIL GRADE
Ci4 15W-40500 hours
500 hours
500 hours
500 hours
500 hours
1000 hours
1000 hours
2000 hours
1000 hours
1000 hours
2000 hours
MAINTENANCE PARTS REPLACE PERIODIC CHART
Maintenance Overview
Maintenance Precautions
OVERVIEW
To maintain the good status and long-term serviceability of the machine, please fulfill the checking and
maintenance correctly and safely abide by the procedures recommended by this manual.
Based on the total operating time of the machine, the checking and maintenance items can be divided
into several groups: Every 10h (Walk-around checking and daily routine checking), every 50h, and every
250h. Please refer to the reading of hour meter to determine the checking and maintenance timing. The
items for which the checking and maintenance intervals can’t be determined are listed in column “As
necessary”.
When the machine is operated in extremely severe environment (Dusty or high temperature environment),
fulfill the checking and maintenance ahead of the periods specified by maintenance schedule.
NOTE: 1.Mark the" “is need to replace;
2.When the excavator is equipped with hydraulic breaker, the replace period of hydraulic oil and hydraulic
oil filter should be reduced by half.
Do not fulfill any other checking or maintenance item not listed in this manual.
For the items not listed in this manual, please ask your sales or service dealer for help.
Keeping Machine Clean
MAINTENANCE
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SERVICE DATA
Clean the machine before checking and maintenance. Keep the machine clean.
Stop the engine before cleaning the machine. Cover the electric parts against water ingress. The
water ingress into the electric parts will probably result in short- circuit or malfunction. Do not clean
the battery, electronic control units, sensors, connector, or operating room by water or steam.
Precautions for Refueling
No Cleaning of Engine Parts by Fuel
Regardless of the specified periods, replace the oil when the oil is too dirty or already deteriorated.
Never mix the oils of different trademarks while adding fuel/oil. To replace with fuel/oil of other
trademark, please replace completely.
If the fuel filler port is installed with a filter screen, do not remove the filter screen during refueling.
Please ensure to tighten the fuel tank cap after refueling.
The refueled volume shall not exceed the designated fuel volume.
It’s prohibited to clean engine parts by fuel. Use non-inflammable detergent.
Guard against Ingress of Dusts
The installation and disassembling of parts shall be operated in a dust-free place. Clean the working area
and clean the parts to guard against ingress of dusts.
Cleaning of Mounting Surfaces
Keep clean the contact surface of parts during the installation and disassembling. If the sealing grooves
of the contact surfaces are damaged, please contact your sales or service dealer for repairs or breakup.
MAINTENANCE
Position
Hydraulic oil tank Anti-wear hydraulic oil
Cooling system
Traveling reducer gear
Slewing motor gear
Slewing bearing
Working device
Arm
Every 50h
Every 50h
Daily or every 10h
As necessary
Coolant (Water +
coolant) **
SAE: J814C or J1034
Gearbox API: GL-4 SAE 90
Lithium-base grease
EP-2 MLGI 2#
First 250h *
Afterwards every
1000h
Every 2000h ***
Every 1000h
Type depending on temperature
-20℃ -10℃ 0℃ 10℃ 20℃ 30℃ 40℃
Replacement
period
Type
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Lubricant
ISO VG32
ISO VG46
ISO VG68
50% coolantmixture
30% coolant mixture
MAINTENANCE
System
Hydraulic system
Engine lubrication
system
Air filter system Air filter
Fuel system
Ventilator
Engine oil filter
Fuel filter
Filter cartridge
Filter cartridge
Primary (Outer) filter
element
Secondary (Inner)
filter element
Replac e after first 50 hours, then every
250 hours
0 20
500
1000
1500
2000
40 60 80 100
Every 1,000h or 6 cleaning cycles
(Whichever comes first)
At replacement of primary filter
element
Every 250h
Every 1000h
Filter replacement period
Breaking hammer operating ratio (%)
Part name Replacement periodItem
Item
1
st
time
2
nd
time
Periodic (1200)600
25
100
200
--
--
Filter elementHydraulic oil
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PERIODICAL REPLACEMENT OF HYDRAULIC OIL
LIST OF WEARING PARTS
With installed hydraulic breaking hammer, the hydraulic oil deteriorates faster than the common digging
operations. Ensure to replace the hydraulic oil and oil return filter element.
By taking the breaking hammer operating ratio of
100% for instance. Refer to “Hydraulic Breaking
Hammer” in page 91 for details.
Periodically replace the wearing parts, including
filters and filter elements, as per the table
below.
The failure to replace timely will result in damage of machine and breaking hammer hydraulic system.
To prolong the lives of hydraulic devices, please timely replace the hydraulic oil and oil return filter
element as per the table below.
During the replacement of hydraulic oil, clean the oil suction filter screen. Replacement period (Hour)
MAINTENANCE
Hydraulic device replacement period
(): For the use of common anti-wear
Replacement period (Hour)
Vehicle body
Fuel system
Heater
Fuel pipes
Hydraulic pipe (Pump outlet)
Hydraulic pipe (Pump oil suction port)
Hydraulic pipe (Slewing motor)
Hydraulic pipe (Traveling motor)
Hydraulic pipe (Boom cylinder pipeline)
Hydraulic pipe (Bucket arm cylinder pipeline)
Hydraulic pipe (Bucket cylinder pipeline)
Hydraulic pipe (Swing cylinder)
Hydraulic pipe (Bulldozing blade cylinder)
Hydraulic pipe (Span cylinder)
Hydraulic pipe (Pilot valve)
Hydraulic pipe (Auxiliary pipeline)
Seat Belt
Anti skid plate
Packing on fuel tank cover
Heater hoses
Cooling system
Main
machine
Hydraulic
system
Working
device
Rubber hoses
Replacement period
Every 2 years
Every 3 years
Periodically replaced critical safety part
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CRITICAL SAFETY PARTS
To operate the machine safely, please fulfill the periodical checking and maintenance. The following
critical safety parts shall be replaced periodically to improve safety.These parts can cause serious
injuries or fire accident if they are damaged.
The materials of the above-mentioned critical safety parts will deteriorate along with time to cause wear
or deteriorated performance. It’s difficult to determine the deterioration extent during periodical
checking. Therefore, such parts shall be replaced with new ones to guarantee stable performance, even if
such parts are still working well. Please be noted that, regardless of the replacement schedule, any part
with wear symptom must be replaced immediately. Upon detection of any deformed or cracked pipe
clamp, immediately replace it together with hose. Please consult with your sales or service dealer for the
replacement of safety parts.
Except the critical safety parts, check and tighten the hydraulic pipes and when necessary replace.
During the replacement of hydraulic pipes, replace the O-ring and seal ring as well.
Check the fuel and hydraulic pipes as per the schedule specified by the following table. Refer to “Mainte-
nance”.
List of Critical Safety Parts
MAINTENANCE
Checking type
Daily routine checking
Monthly checking
Yearly checking
Leakage of hydraulic or fuel pipe connector
Leakage of hydraulic or fuel pipe connector
Damage (Cracking, wear, and tear) of hydraulic or fuel pipe
Leakage of hydraulic or fuel pipe connector
Aging, distortion, and damage (Cracking, wear, and tear) of hydraulic or fuel pipe
and/or status of hose in contact with other machine parts
Checking item
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1. Check for presence of branches, leaves, oil, and other inflammable around the engine and battery.
2. Check for presence of lubricating oil and coolant leakages around the engine.
3. Check hydraulic oil pipes, hydraulic devices, hoses, and connectors for oil leakage.
1. Check lamps for presence of dusts and damages and check lamp bulbs for burnout.
2. Check hydraulic accessories and hoses for damage.
3. Check bucket, bucket teeth, and side teeth for wear, damage, and looseness.
4. Check hook, anti-slip stop block, and hook seat on bucket for presence of damage. (Optional)
5. Check handrails, footplates, and anti-slip surfaces for damage and check for any loose bolt.
6. Check tracks and track shoes for presence of slip, check track carrier rollers, idling device, and sprock-
et for presence of damage and wear, and check for loose bolt.
7. Check traveling motor for oil leakage.
8. Check shelter and guard plates for damage and check for loose nuts and bolts.
9. Check exterior and interior rear view mirrors for contamination and damage and when necessary adjust.
10.Check labels for presence of dusts and damage.
1. Check seat and seat belt for presence of dust and damage.
2. Check driver seat for presence of dust, oil dirt, and other inflammable.
3. Check monitor, electric devices, and switches for oil dirt, dust, and damage.
Opening of engine hood and machine hood for checking
Walk-around checking of machine
Checking in Driver Seat
MAINTENANCE
TROUBLESHOOTING
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NO BATTERY POWER
If the steam overflows from the engine, do not open the engine hood or machine hood. The steam or hot
water will probably spray out to cause scalding.
Do not disassemble the radiator cap or drainage plug when the coolant is hot. Stop the engine, wait for
the engine and radiator to cool down, and then slowly loosen the radiator cap to relieve the internal
pressure.
Please stop the engine and wait for the machine to cool down before maintenance.
The following symptoms indicate overheating.
The following symptoms indicate no battery power.
Important: The jumper cable and clamps in use shall be suitable to the battery capacity. Do not use any
damaged or corroded jumper cable or clamp.
Important: Ensure the same capacity for the battery on the rescue machine and the battery on malfunc-
tioned machine.
Important: Ensure to connect the cable clamps securely.
Engine water temperature should be <105℃
Steam came out of the engine room.
No rotation of starter motor or start failure of engine.
Low volume of horn.
To start the engine by jumper cable, ensure to connect the cable by correct procedure. The improper
use of jumper cable will result in battery explosion or unexpected machine motions.
The booster machine and the machine with depleted battery are prohibited for mutual contact.
The positive (+) and negative (-) clamps of the jumper cable are prohibited for mutual contact.
During connection, firstly connect the jumper cable to positive (+) terminal. During disconnection,
firstly disconnect the cable from negative (-) terminal.
Connect the last clamp of jumper cable to a point as far as possible from the battery.
Start the engine by the booster battery on other machine (booster machine) and jumper cable.
Important: Place the starter keys of both rescue machine and
malfunctioned machine to OFF.
1. Connect a clamp of jumper cable (R) to the positive (+) pole of
malfunctioned machine.
2. Connect the other jumper cable clamp (R) to the booster (+).
3. Connect the jumper cable clamp (B) to the charger (-).
Always wear goggles while using jumper
4. Connect the other clamp of jumper cable (B) to the engine
support of the malfunctioned machine. Connect the clamp to a
point as far as possible from the battery.
Remedy procedure
Cable to Start Engine.
Connection of Jumper Cable
TROUBLESHOOTING
4
1
2
3
R
B
To engine block
Battery of malfunctioned
machine
Battery of rescue
machine
Warning lamp
Charging warning
lamp
There is a problem with charging.
If the light continues to flash after maintenance,
there may be a problem with the charger. If you need
help, please consult your sales or service agent.
The engine lubrication system is internally
malfunctioned. Check the engine oil level.
If this lamp flashes when the oil level is normal or
still flashes after adding of oil, please consult with
our service team. “Checking and adding of engine oil”.
Engine oil pressure
indicator lamp
Lamp name Cause and solution
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RESTART AFTER REFUELING
1. Check and ensure that the wire clamps are already connected
securely to various terminals.
2. Start the engine of rescue machine and run it at high speed.
3. Start the engine of the malfunctioned machine.
Please ask your sales or service dealer to recharge the depleted
battery.
If a warning tone is heard or a warning lamp starts to flash during operations, park the machine in a safe
place and take the following remedy measures.
After the successful start of the engine of malfunctioned
machine, disconnect the jumper cable in reverse sequence of the
connection procedure.
1. Disconnect the clamp of jumper cable (B) from the engine
support of malfunctioned machine.
2. Disconnect the other jumper cable (B) from the charger (-).
3. Disconnect the jumper cable (R) clamp from the charger (+).
4. Disconnect the jumper cable clamp (R) from the uncharged
machine (+).
Important: Do not rotate the engine by starter motor to get ready the fuel system. This will probably
cause overheating of starter motor to damage coil, pinion, and/or ring gear.
Important: If the engine stops due to shortage of fuel, please add fuel, rotate the key to ON for 60s, and
then rotate it to START position. Running the starter motor for a long time before the supply of sufficient
fuel will cause start failure of starter.
1. Add fuel.
2. Turn the starter key to the ON position and hold it for about 60 seconds.
Note: The air content in the fuel system will cause start failure or other problems of engine. Ensure to
exhaust when the fuel tank is empty or the fuel system contains air.
After Start of Engine
Disconnection of Jumper Cable
Air exhausting from Fuel System
FLASHING OF WARNING LAMPS
Recharging
TROUBLESHOOTING
4
1
2
3
R
B
To engine block
Battery of malfunctioned
machine
Battery of rescue
machine
PARAMETERS
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BASIC PARAMETERS
All ratings of the machine are obtained when the machine is operating on a solid horizontal support
surface. If the working environment conditions of the machine differ from the above-mentioned reference
conditions (Such as the operations on uneven ground and slope), the operator shall take these conditions
into consideration.
Technical parameters Unit MEC10
2645.5
0.02
Backhoe
Model
Displacement
Rated output power/speed
Working pressure
Flow
Hydraulic oil tank capacity
Fuel tank capacity
Maximum traveling speed (High/low)
Slewing speed
Maximum grade ability
Ground pressure
Material
Tension control type
Honda GX390
389
8.7/3600
1.2
9
30°
0.3
Rubber
Mechanical tightening
gear pump
16
21.6
15
6.1
lbs
m
3
ml
kw/rpm
km/h
rpm
kPa/c㎡
Mpa
(L/min)
(L)
(L)
Operating weight
Bucket capacity
Type of working device
Engine
Speed
Track sub assembly
Fuel/oil/fluid pressure
and capacity
Type of pump
PARAMETERS
47
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OVERALL DIMENSIONS OF MACHINE
Overall dimensions
a
b
c
d
e
f
g
h
i
j
m
n
g
Wheel track Transport length
Ground clearance of seat
Overall height
Boom slewing - right
Boom slewing – left
Track height
Overall length of crawler
Ground clearance of platform
Tail slewing radius of platform
Chassis width
Track width
Track height
35.8
48.6
15.7
32.6
36
7
12.6
92.5/113
61.4
89.3
40°
53°
12.6
Unit: inch Overall dimensions Unit: inch
PARAMETERS
48
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OPERATING RANGE
Working range
L
J
H
F
G
I
K
M
N
Ground maximum digging radius
Maximum digging radius
Maximum digging depth
Maximum digging height
Maximum Dump height
Maximum vertical digging depth
Minimum slewing radius
Maximum lifting height of bulldozing blade
Maximum digging depth of bulldozing blade
119
121
65.7
111.8
81.8
63.3
46.8
5.9
7.4
Unit: inch
PARAMETERS
ACCESSORIES
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PRECAUTIONS FOR OPERATIONS
Start the engine and run at 75% of maximum speed.
Perform the crushing operation by placing the hammer head perpendicular to the working face.
During the crushing operations, appropriately aim the hammer head at the object to be crushed and
avoid the air impact.
Do not pry by hammer head or pry during breaking.
Do not move the hammer head during crushing.
Do not impact one same surface continuously for >30s.
Do not crush when the cylinder is fully extended or retracted (at travel end). Reserve at least 50mm
travel.
Do not crush when the bucket arm is perpendicular to the ground.
Do not crush any object to be impacted by the gravity drop of breaking hammer.
Do not use the breaking hammer to move any object or rock to be crushed.
Slew the machine occasionally to cool down the engine.
In event of abnormal vibration of hydraulic pipes, the nitrogen in the accumulator is probably leaking.
Please check as soon as possible.
ACCESSORIES
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PERIODICAL REPLACEMENT OF HYDRAULIC OIL
With installed hydraulic breaking hammer, the hydraulic oil deteriorates faster than the normal
operations. Ensure to replace the hydraulic oil and oil return filter element.
The failure to replace timely will result in damage of machine and breaking hammer hydraulic system.
To prolong the life of hydraulic system, ensure to replace the hydraulic oil and oil return filter element
after the hours listed in table below.
During the replacement of hydraulic oil, clean the oil suction filter screen. Replacement period (Hour)
Item
1
st
time
2
nd
time
Periodic (1200)600
25
100
200
--
--
Filter elementHydraulic oil
By taking the breaking hammer operating ratio of
100% for instance.
ACCESSORIES
0 20
500
1000
1500
2000
40 60 80 100
Filter replacement period
Breaking hammer operating ratio (%)
Hydraulic device replacement period
(): For the use of common anti-wear
Replacement period (Hour)
EXPLODED VIEW & PARTS LIST
1
22
1
No. DESCRIPTION QTY
1
2
3
Front operating device
Upper frame assembly
Lower frame assembly (retractable)
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Exploded View--Front Operation, Upper Frame, Lower Frame Assembly
Parts List-- Front Operation, Upper Frame, Lower Frame Assembly
EXPLODED VIEW & PARTS LIST
2
1
3
1
1
1
1
1
1
1
1
1
1
1
1
No. DESCRIPTION No. DESCRIPTION QTY
1
2
1
1
1
1
1
1
1
1
1
1
1
QTY
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
Swing head
The pin shaft 11
The pin shaft 12
The pin shaft 16
Main arm
Move the arm cylinder
The pin shaft 5
The pin shaft 3
The bucket pole cylinder
Rubber protection circle
Light bracket
Light installation seat
light
The pin shaft 15a
The pin shaft 3
Dipper
The pin shaft 3
globe valve
Dig bucket cylinder
rocking bar
connecting rod
The pin shaft 9
The pin shaft 7
The pin shaft 7
Bucket
52
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Exploded View--Front Operating Device Assembly-1
Parts List--Front Operating Device Assembly-1
EXPLODED VIEW & PARTS LIST
4
1
2
3
6
9
8
10
7
5
13
12
11
14
16
19
20
21
22
24
25
23
18
17
15
1
5
6
2
3
4
10
13
11
12
7
9
8
No. DESCRIPTION No. DESCRIPTION QTY
1
1
1
1
2
8
QTY
1
2
3
4
5
6
7
8
9
10
11
12
13
Engine
Dear pump
Courier shell
Flywheel disc
Engine leg welding
Engine shock absorber
The ttle pull fixing plate
Backing board
Silencer fixed board
Silence
Radiator
Water absorption tube
Wet return
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Upper frame assembly(Part of the component explosion details)-2
Exploded View--Engine Assembly
Parts List--Engine Assembly
EXPLODED VIEW & PARTS LIST
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Exploded View--Front Hood Valve Operating Device
No. DESCRIPTION No. DESCRIPTION QTY
1
1
1
3
1
1
1
1
2
1
2
2
1
1
1
1
1
QTY
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
Instrument installation shell
Operating table shell
The upper shell of the operating table
Wiper scraper seal
Master valve
Joint lever
Main valve assembly
Activated pedal
Sliding shaft
Activated pedal
Pinch plate
Coupling shaft
Operate the front shell
Oil pressure lamp
Hour meter
Voltmeter
Water temperature indicator
Parts List--Engine Assembly
EXPLODED VIEW & PARTS LIST
15
16
17
13
8
11
10
9
7
12
5
6
2
3
4
1
14
No. DESCRIPTION No. DESCRIPTION QTY
1
2
1
1
2
QTY
1
2
3
4
5
6
7
8
9
4
2
2
2
Get off the rack
Detent plate cover
Rotary support
Dozer blade
Steerable wheel
Thrust wheel
Driving wheel
Walking motor
Rubber belt track
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Exploded View--Get off parts-3
Parts List--Retractable Lower Frame Assembly-1
EXPLODED VIEW & PARTS LIST
3
9
4
8
7
1
6
5
2
No. DESCRIPTION No. DESCRIPTION QTY
1
1
1
1
QTY
1
2
3
4
5
6
7
8
1
1
1
1
Hydraulic hose
Hydraulic hose
Hydraulic hose
Hydraulic hose
Hydraulic hose
Hydraulic hose
Hydraulic hose
Hydraulic hose
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Exploded View--Hydraulic Pipeline Assembly
Parts List--Hydraulic Pipeline Assembly
EXPLODED VIEW & PARTS LIST
7
8
5
1
2
6
4
3
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Exploded View--Hydraulic Pipeline Assembly (Valve Part of the Front Hood)-1
No. DESCRIPTION No. DESCRIPTION QTY
1
1
1
1
QTY
1
2
3
4
5
6
7
1
1
1
Hydraulic hose
Hydraulic hose
Hydraulic hose
Hydraulic hose
Hydraulic hose
Hydraulic hose
Hydraulic hose
Parts List--Hydraulic Pipeline Assembly (Valve Part of the Front Hood)-1
EXPLODED VIEW & PARTS LIST
4
6
5
1
7
3
2
No. DESCRIPTION No. DESCRIPTION QTY
1
1
1
1
1
1
1
1
1
1
1
QTY
1
2
3
4
5
6
7
8
9
10
11
Hydraulic hose
Hydraulic hose
Hydraulic hose
Hydraulic hose
Hydraulic hose
Hydraulic hose
Hydraulic hose
Hydraulic hose
Hydraulic hose
Hydraulic hose
Hydraulic hose
58
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Exploded View--Hydraulic Pipeline Assembly (Valve Part of the Front Hood)-2
Parts List--Hydraulic Pipeline Assembly (Valve Part of the Front Hood)-1
EXPLODED VIEW & PARTS LIST
12
11
1
3
4
5
6
7
8
9
10
2
QUESTION REASON ANSWER
The engine cannot start, the starter does not
respond, and the instrument does not light up.
The engine cannot start. The starter can drive
the engine to rotate.
The engine can start but is difficult to start
The engine starts but runs erratically
Engine overheating
The engine keeps emitting black smoke
The engine emits white or blue smoke
1.The battery is completely
empty
2.cable link broken
1.The battery is low
2.Cables are loose
3.flooded cylinder
1.Fuel level low
2.There is water in the fuel
system
3.The fuel pipe is cracked
4.Fuel pump pressure is low
5.The engine oil model is wrong
6.Engine overheating
1.Fuel system air intake
2.Engine speed regulator is
loose
3.The fuel filter is clogged
4.The air filter is clogged
1.Cooling system blocked
2.Engine overload
3.The cooling system cover falls
off
4.The fan belt is too loose
1.The air filter is clogged
2.The amount of fuel injected by
the fuel injection nozzle is too
large.
1.Fuel quality is too poor
2.Too much oil is added
1.Replace the battery or
charge it
2.Check the disconnection
and repair it
Recharge or replace
battery
Tighten cable glands
Remove the spark plug.
Start the machine with
the key switch to remove
excess fuel. Check the
spark plug.
1.Add fuel to the
appropriate location
2.Drain the water
3.Replace the fuel pipe
4.Replace and repair
5.Change the
temperature and add
appropriate type of
engine oil.
6.Check the cooling
system
1.Replace the fuel line
2.Adjust the engine
speed regulator
3.Replace filter element
4.Replace the air filter
1.Clean and cool the tin
tube
2.Adjust the engine speed
to match the hydraulic
system
3.Fasten the cover
4.Adjust the belt to the
appropriate tension
1.Replace the air filter
element
2.Replace the fuel injector
1.Replaced fuel
2.Add the appropriate
position according to the
engine oil dipstick
59
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EXPLODED VIEW & PARTS LIST
QUESTION REASON ANSWER
The whole machine has no action
The whole machine moves slowly
Unable to dig
The machine shuts down when doing
movements
Hydraulic oil temperature is too high
Tracks fall off
1.Hydraulic pump damaged
2.The safety valve is damaged
3.The hydraulic oil model does
not match the temperature.
4.The safety lock is not opened
1.Hydraulic oil level is too low
2.Hydraulic oil viscosity is too
high
3.Control valve is damaged
4.cylinder internal leakage
5.The hydraulic pump is
damaged
1.Hydraulic oil level is too low
2.Hydraulic oil temperature is
overheated
3.Hydraulic oil temperature is
too low
4.The pressure safety valve is
damaged
5.Hydraulic pump damaged
1.Fuel oil line sucks air
2.Engine hydraulic pump power
does not match
3.Hydraulic oil filter is clogged
1.Hydraulic oil level is too low
2.Hydraulic filter element is
clogged
3.The cooling system is blocked
1.The track is too loose
1.Repair or replace
2.Replace the safety valve
3.Replace the
appropriate hydraulic oil
4.Open the safety lock
1.Add hydraulic oil to the
appropriate oil level gauge
2.Heating the hydraulic
oil while the engine is
idling
3.Repair or replace
4.Inspect and repair
5.Repair or Replace
1.Add hydraulic oil to level
2.Check the cooling
system
3.Machine idling to preheat
hydraulic oil temperature
4.Replace the safety valve
5.Replace the hydraulic
pump
1.Check the fuel line or
replace it
2.Increase engine speed
3.Replace the hydraulic
oil filter element
1.Add hydraulic oil
2.Replace the hydraulic
filter element
3.Clean the cooling
system
1.Tighten the track
60
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EXPLODED VIEW & PARTS LIST
