Operator’s Manual
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TABLE OF CONTENTS
TABLE OF CONTENTS
SPECIFICATIONS
SAFETY SIGNS
SAFETY
1
2
3
4
8
9
UNPACHING THE CONTAINER
ASSEMBLY
12
KNOW YOUR MACHINE
13
OPERATION
16
MAINTAINING YOUR TRENCHER
17TRANSPORTING AND STORING
18
TROUBLESHOOTING
19
20
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TABLE OF CONTENTS
INTRODUCTION
Do not start or operate the machine before
you read this manual. Make sure that you
fully understand all the safety, operation,
and maintenance information before you
operate the machine.
Keep this manual with the machine at all
times and available for frequent reference.
Congratulations on your purchase and welcome to Mech-
Maxx! This manual gives you the necessary information
about your machine so you will be able to use it properly.
The entire manual must be read and understood before
you start using the machine. If any questions should arise
that are not covered by this manual, please contact Mech-
Maxx.
This machine is designed for certain applications only. We
strongly recommend that this machine is not modied
and/or used for any application other than that for which
it was designed. If you have any questions relative to a
particular application, DO NOT use the machine until you
have rst contacted us to determine if it can or should be
performed on the product.
The Engine Manufacturer is responsible for all engine
related issues with regards to performance, power rating,
specifications, warranty and service. Please refer to the
Engine Manufacturer's owner/operator's manual.
Record the model and serial number as well as date and
place of purchase for future reference. Have this informa-
tion available when ordering parts or optional accessories
and when making technical or warranty inquiries.
This manual is subject to change without notice. For the
most current information, go to Mechmaxx.com.
For available accessories, go to mechmaxx.com.
ENGINE MANUAL
MODEL AND SERIAL NUMBERS
PARTS LIST
PARTS DIAGRAM
SPECIFICATIONS
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SPECIFICATIONS
Engine
Certification(S)
Engine Type
Displacement/ HP
Start
Belt
Belts Material
Clutch
Carbide Tip
Scraper
Tip Holder Material
Carbide Tip Material
Chain Length
Chain Speed
Max. Trench Depth
Max. Trench Width
Wheelbase
Tire
Assembled Weight
Gross Weight
Packing Size
Warranty
EPA Phase III, CARB Phase III
Single Cylinder, 4 Stroke, Air-Cooled, OHV
E-Start
2x V-Belts
Kevlar
Centrifugal Clutch
27 x Carbide Alloy High-Pressure Teeth
9 Pcs
42CrMo
YG11C Alloy
81.5 in
574 ft / min
24 in
4 in
29 in
15 x 6-6 Tubeless Tire
402 Ibs
450 Ibs
46 x 31 x 34 in
1 Year
DUCAR DH420E
420c; 15 HP
Model TCR1500
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SAFETY SIGNS
The rating plate on your machine may show symbols. These represent important information about the product or instruc-
tions on its use.
SAFETY SIGNS
OVERALL DIMENSIONS
1234mm
48.5”
2143mm
84.3”
905mm
35.6”
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GENERAL SAFETY RULES
WORK AREA
PERSONAL SAFETY
FUEL SAFETY
SAFETY
SAFETY
Read and understand the operator's manual and labels
affixed to the machine. Learn its application and limita-
tions as well as the specific potential hazards peculiar to
it.
Be thoroughly familiar with the controls and their proper
operation. Know how to stop the machine and disengage
the controls quickly.
Make sure to read and understand all the instructions and
safety precautions as outlined in the Engine Manufactur-
er's Manual. packed separately with your unit. Do not
attempt to operate the machine until you fully understand
how to properly operate and maintain the Engine and how
to avoid accidental injuries and/or property damage.
Never start or run the machine inside a closed area. The
exhaust fumes are dangerous. containing carbon monox-
ide, an odorless and deadly gas. Operate this unit only in a
well ventilated outdoor area.
Never operate the machine without good visibility or light.
Do not operate the machine while under the influence of
drugs,alcohol, or any medication that could affect your
ability to use it properly.
Dress properly. Wear heavy long pants,boots and gloves.
Do not wear loose clothing. short pants, and jewelry of
any kind. Secure long hair so it is above shoulder level.
Keep your hair.clothing and gloves away from moving
parts. Loose clothes, jewelry or long hair can be caught in
moving parts.
Use safety equipment. Always wear eye protection.
Safety equipment such as a dust mask, hard hat, or
hearing protection used for appropriate conditions will
reduce personal injuries.
Check your machine before starting it.Keep guards in
place and in working order. Make sure all nuts bolts,etc.
are securely tightened.
Never operate the machine when it is in need of repair or
is in poor mechanical condition. Replace damaged, miss-
ing or failed parts before using it. Check for fuel
leaks.Keep the machine in safe working condition.
Never remove or tamper with safety device. Check their
proper operation regularly.
Do not use the machine if the engine's switch does not
turn it on or off. Any gasoline powered machine that can
not be controlled with the engine switch is dangerous and
must be replaced.
Form a habit of checking to see that keys and adjusting
wrenches are removed from machine area before starting
it. A wrench or a key that is left attached to a rotating
part of the machine may result in personal injury.
Stay alert, watch what you are doing and use common
sense when operating the machine.
Do not overreach. Do not operate the machine while
barefoot or when wearing sandals or similar light weight
footwear. Wear protective footwear that will protect your
feet and improve your footing on slippery surfaces. Keep
proper footing and balance at all times. This enables
better control on the better control on the machine in
unexpected situations.
Avoid accidental starting. Be sure the engine is off before
transporting the machine or performing any maintenance
or service on the unit. Transporting or performing mainte-
nance or service on a machine with engine on invites
accidents.
Fuel is highly flammable, and its vapors can explode if
ignited. Take precautions when using to reduce the
chance of serious personal injury.
When refilling or draining the fuel tank, use an approved
fuel storage container while in a clean, well-ventilated
outdoor area.
While adding fuel or operating the unit, do not smoke, and
stay away from sparks, open flames, or other sources of
ignition near the area of operation. Never fill the fuel tank.
Keep grounded conductive objects. such as tools, away
from exposed. live electrical parts and connections to
avoid sparking or arcing. These events could ignite fumes
or vapors.
Always stop the engine and allow it to cool before filling
the fuel tank. Never remove the cap of the fuel tank or add
fuel while the engine is running or when the engine is hot.
Do not operate the machine with known leaks is the fuel
system.
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MACHINE USE AND CARE
SERVICE
PROPOSE
SAFETY
Loose the fuel tank cap slowly to relieve any pressure in
the tank.
Never over fill fuel tank. Fill tank to no more than 12.5
mm(1/2") below the bottom of the filler neck to provide
space for expansion as the heat of the engine can cause
fuel to expand,
Replace all fuel tank and container caps securely and
wipe up spilled fuel, Never operate the unit without the
fuel cap securely in place.
Avoid creating a source of ignition for spilled fuel. If fuel is
spilled, do not attempt to start the engine but move the
machine away from the area of spillage and avoid creating
any source of ignition until fuel vapors have dissipated.
Store fuel in containers specifically designed and
approved for this purpose.
Store fuel in a cool. well-ventilated area, safely away from
sparks, open flames or other sources of ignition.
Never store fuel or machine with fuel in the tank inside a
building where fumes may reach a spark, open flame, or
other sources of ignition, such as a water heater, furnace,
clothes dryer and the like, Allow the engine to cool before
storing in any enclosure.
Position the machine in such a way that it can not move
during maintenance, cleaning, adjustment, assembly of
accessories or spare parts, as well as under storage,
Do not force the machine. Use the correct machine for
your application, The correct machine will do the job
better and safer at the rate for which it was designed.
Do not change the engine governor settings or over-speed
the engine. The governor controls the maximum safe
operating speed of the engine.
Do not run the engine at a high speed when you are not
working.
Do not put hands or feet near rotating parts.
Avoid contact with hot fuel, oil, exhaust fumes and hot
surfaces.
Do not touch the engine or muffler. These parts get
extremely hot from operation. They remain hot for a short
time after you turn off the unit, Allow the engine to cool
before doing maintenance or making adjustments.
If the machine start to make an unusual noise or vibra-
tion, immediately shut off the engine, disconnect the
spark plug wire, and check for the cause, Unusual noise or
vibration is generally warning of trouble .
Use only attachments and accessories approved by the
manufacturer. Failure to do so can result in personal
injury.
Maintain the machine. Check for misalignment or binding
of moving parts. breakage of parts and any other condition
that may affect the machine's operation. If damaged.
have the machine repaired before use. Many accidents are
caused by poorly maintained equipment.
Keep the engine and muffler free of grass,leaves, exces-
sive grease or carbon build up to reduce the chance of a
fire hazard.
Never douse or squirt the unit with water or any other
liquid. Keep handles dry, clean and free from debris. Clean
after each use.
Observe proper disposal laws and regulations for gas.oil
etc,to protect the environment.
Store idle machine out of the reach of children and do not
allow persons unfamiliar with the machine or these
instructions to operate it. Machine is dangerous in the
hands of untrained users.
Before cleaning, repair, inspecting, or adjusting, shut off
the engine and make certain all moving parts have
stopped. Disconnect the spark plug wire, and keep the
wire away from the plug to prevent accidental starting.
Have your machine serviced by qualified repair personnel
using only identical replacement parts. This is so that
that safety of the machine is maintained
Before using the Trencher:
Operators must be fully trained before using this machine.
User Manual is read and understood.
This machine is designed solely to dig
trench and must not be used for any other
purpose. It should only be used by trained
operators who are familiar with the
content of this manual. It is potentially
hazardous to fit or use any parts other
than your dealer parts. We disclaim all
liability for the consequences of such use,
which in addition voids the machine
warranty
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SAFETY
Blades are in good condition and secure. All blades are
sharpened or replaced in sets.
All fasteners are checked for tightness.
When using the Trencher：
Maintain strict discipline at all times and service machine
at specified periods.
During working, people should stand in the middle of the
two handles, and keep a certain space from engaged
wheel, so that avoid injuries of foot touching engaged
wheel during walking.
Keep body parts, foreign objects and clothing clear of
rotating auger and digging chain.
Coming into contact with buried utilities while digging
can cause severe injuries or DEATH.
Contact appropriate utility representatives to determine
if/where electrical cables, gas lines, water lines, etc. are
buried BEFORE operation.
DO NOT operate the machine while under the influence of
alcohol or drugs.
Only use the machine in daylight or illuminance above
500lux.
Never operate the dumper after dark.
This is a high-powered machine, with moving parts
operating with high energy. You must operate the
machine safely. Unsafe operation can create a number of
hazards for you, as well as anyone else in the nearby area.
Always take the following precautions when using this
machine:
Keep in mind that the operator or user is responsible for
accidents or hazards occurring to other people, their
property, and themselves.
Always wear protective goggles or safety glasses with
side shields while using the Trencher to protect your eyes
from possible thrown debris.
Avoid wearing loose clothing or jewelry, which can catch
on moving parts.
Wear shoes with non-slip treads when using your
Trencher. If you have safety shoes, we recommend wear-
ing them. Do not use the machine while barefoot or wear-
ing open sandals.
Wear earplug when using your trencher to avoid noise.
Keep bystanders at least 50 feet (15m) away from your
work area at all times.Stop the engine when another
person or pet approaches.
Tragic accidents can occur if the operator is not alert to
the presence of children and pets.Children are often
attracted to the machine and the digging activity. Never
assume that children will remain where you last saw
them. Always follow these precautions:
Keep children and pets at least 50 feet(15m) from the
working area and ensure they are under the watchful
care of a responsible adult.
Be alert and turn the machine off if children or pets enter
the work area.
Never allow children to operate the Trencher.
Gasoline is a highly flammable liquid. Gasoline also gives
off flammable vapor that can be easily ignited and cause
a fire or explosion. Never overlook the hazards of gasoline.
Always follow these precautions:
Never run the engine in an enclosed area or without proper
ventilation as the exhaust from the engine contains
carbon monoxide, which is an odorless, tasteless, and a
deadly poisonous gas.
Store all fuel and oil in containers specifically designed
and approved for this purpose and keep away from heat
and open flame, and out of the reach of children.
Replace rubber fuel lines and grommets when worn or
damaged and after 5 years of use.
Fill the gasoline tank outdoors with the engine off and
allow the engine to cool completely. Don't handle gasoline
if you or anyone nearby is smoking, or if you're near
anything that could cause it to ignite or explode. Reinstall
the fuel tank cap and fuel container cap securely.
If you spill gasoline, do not attempt to start the engine.
Move the machine away from the area of the spill and
avoid creating any source of ignition until the gas vapors
have dissipated. Wipe up any spilled fuel to prevent a fire
hazard and properly dispose of the waste.
Protecting Yourself and Those around You
Safety for Children and Pets
Safety with Gasoline - Powered Machines
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A NOTE TO ALL USERS
SAFETY
Allow the engine to cool completely before storing in any
enclosure. Never store a machine that has gasoline in the
tank, or a fuel container, near an open flame or spark such
as a water heater, space heater, clothes dryer or furnace.
Never make adjustments or repairs with the engine
running. Shut down the engine, disconnect the spark plug
wire, keeping it away from the spark plug to prevent
accidental starting, wait 5 minutes before making adjust-
ments or repairs.
Never tamper with the engine's governor setting. The
governor controls the maximum safe operation speed and
protects the engine. Over-speeding the engine is danger-
ous and will cause damage to the engine and to the other
moving parts of the machine. If required, see your autho-
rized dealer for engine governor adjustments.
Keep combustible substances away from the engine
when it is hot.
Never cover the machine while the muffler is still hot.
Do not operate the engine with the air cleaner or the
carburetor air intake cover removed. Removal of such
parts could create a fire hazard. Do not use flarnmable
solutions to clean the air filter.
The muffler and engine become very hot and can cause a
severe burn; do not touch.
If the machine start to make an unusual noise or vibrate,
shut down the engine, disconnect the spark plug wire,
keeping it away from the spark plug to prevent accidental
starting, wait 5 minutes for engine to cool down, then
inspect for damage. Vibration is generally a warning of
trouble. Check damaged parts and clean, repair and/or
replace as necessary.
Never tamper with safety devices. Check their proper
operation regularly.
Before performing any maintenance or inspection proce-
dure, shut down the engine,disconnect the spark plug
wire keeping it away from the spark plug to prevent
accidental starting, wait 5 minutes for machine to cool
down.
Never allow people who are unfamiliar with these instruc-
tions to use the Trencher. Allow only responsible individu-
als who are familiar with these rules of safe operation to
use your machine.
Never overload or attempt to dig trenches beyond the
manufacturer's recommendation. It could result in
personal injury or damage to the machine.
While using, don't hurry or take things for granted. When
in doubt about the equipment or your surroundings stop
the machine and take time to look things over.
Never operate the machine when under the influence of
alcohol, drugs, or medication.
Use the machine only in daylight.
Stay alert for hidden hazards or traffic.
Keep all nuts and bolts tight and keep the equipment in
good operating condition.
Your Trencher is a powerful tool, not a toy. Exercise
extreme caution at all times. The machine is designed to
dig trench. Do not use it for any other purpose.
Know how to stop the Trencher quickly.
Exercise caution to avoid slipping or falling.
See manufacturer's instructions for proper operation and
installation of accessories.
Never use the machine without ensuring that all guards
and shields are in place.
Never, under any conditions, remove, bend, cut, fit, weld,
or otherwise alter standard parts on the Trencher. This
includes all shields and guards. Modifications to your
machine could cause personal injuries and property
damage and will invalid your warranty.
List of warnings and cautions cannot be all-inclusive. If
situations occur that are not covered by this manual, the
operator must apply common sense and operate this
TRENCHER in a safe manner. Contact the dealers for
assistance in your area.
Operating this Trencher safely is neces-
sary to prevent or minimize the risk of
death or serious injury. Unsafe operation
can create a number of hazards for you.
Always take the following precautions
when operating:
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UNPACHING THE CONTAINER
UNPACHING THE CONTAINER
Use the screwdriver and hammer to open all the side locks.
1 2 3 4
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GASOLINE POWERED
MINI TRENCHER
Model Number:
Package size:
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Gross weight:
GASOLINE POWERED
MINI TRENCHER
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ASSEMBLY
Install throttle switch to upper handle with hex bolt
M6x30.
Install the upper handle to the lower handle with the hex
bolt M16x90, and then connect the Angle arm to the hex
bolt M16x90.(See Figure 2)
Using flat washers 8, nuts M8 and hex bolts M8x25.
Mount the tire to the main frame.(See Figure 1)
Attach the lower part of the handle to the rotation handle.
Attach lower handle to main frame with flat washer 8,
elastic washer 8 and hex bolt M8x20.(See Figure 3)
Connect the chain adaptor to the chain axle plate.(See
Figure 4)
ASSEMBLY
Hex bolt M16 X 90mm
1X
Hex bolt M6 X 30mm2X
Spring washer 8
4X
Hex bolt M8 X 20mm
Flat washer 8
4X
4X
Hex lock nut M86X
Hex bolt M8 X 25mm
Flat washer 8
6X
6X
Figure 1
Figure 2
Figure 3
Figure 4
HANDLE ASSEMBLY
WHEELS
CHAIN ASSEMBLY
Lock the chain on the adapter to cirle with chainlock
chain lock and split cotter, Tighten the chain by tighten-
ing the bolt.(See Figure 5)
Connect the chain cover with connection arm plate with
flat washer 8,spring washer 8 and hex bolt M8x55.(See
Figure 6)
Remove the guard plate and install the engine wire (red)
to the electric start and the oil gate wire (yellow) to the
throttle switch.(See Figure 8)
Install the shield on the main frame with hex bolt M6x20,-
flat washer 6 and lock nut M6.(See Figure 7)
ASSEMBLY
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Spring washer 8
2X
Hex bolt M8 X 55mm
Flat washer 8
2X
2X
Hex lock nut M64X
Hex bolt M6 X 20mm
Flat washer 6
4X
4X
Figure 5
Figure 6
Figure 8
Figure 7
WIRING
CHAIN GUARD
SHIELD
ASSEMBLY
Open the battery box, connect the positive terminal (+) to
the red line, and the negative terminal (-) to the black
line.(See Figure 9)
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Figure 9
BATTERY
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KNOW YOUR MACHINE
KNOW YOUR MACHINE
Engine
Wheels
Spading Disk
Recoil Starter Handle
Choke Control
Fuel Shut-Off Valve
Throttle Control
Electric Start
Throttle
Battery
Chain Guard
Chain&Blade
Depth Control
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OPERATION
OPERATION
It may be helpful to better familiarize your self with the
features of your Trencher before beginning the steps
outlined in this chapter.
Read and understand all instructions,
safety precautions, and/or warning slitted
in "PART I: General Safety Rules" before
operating the TRENCHER. If any doubt or
question arises about the correct or safe
method of performing anything found in
this manual, please contact the dealers in
your area.Before loading and operating
the Trencher, always wear protective
gear, including safety goggles, hearing
protection, tight-fitting gloves without
draw strings or loose cuffs, and steel-toed
shoes.
OPERATING THE TRENCHER
3. Using a funnel, add oil up to the FULL mark on the
dipstick. (See engine manual for oil capacity, oil recom-
mendation, and location of fill cap.).
1. The engine must be off and allowed to cool at least two
minutes before adding fuel.
2. Remove the fuel filler cap and fill the tank. (See engine
manual for fuel capacity, fuel recommendation, and
location of fuel cap.)
The engine is shipped without oil. Do not
start the engine before adding oil.
DO NOT OVERFILL. Check engine oil level
daily and add as needed.
This equipment and/or its engine may
include evaporative emissions control
system components, required to meet
EPA and/or CARB regulations, that will
only function properly when the fuel tank
has been filled to the recommended level.
Overfilling may cause permanent damage
to evaporative emissions control system
components. Filling to the recommended
level ensures a vapor gap required to
allow for fuel expansion. Pay close atten-
tion while filling the fuel tank to ensure
that the recommended fuel level inside
the tank is not exceeded. Use a portable
gasoline container with an appropriately
sized dispensing spout when filling the
tank. Do not use a funnel or other device
that obstructs the view of the tank filling
process.
Gasoline is highly flammable and explo-
sive. You can be burned or seriously
injured when handling fuel. Use extreme
care when handling gasoline.
Fill the fuel tank outdoors, never indoors.
Gasoline vapors can ignite if they collect
inside an enclosure. Explosion can result.
ADD OIL TO ENGINE
ADD GASOLINE TO ENGINE
1. Make sure the chipper shredder is on a flat, level surface.
2. Remove the oil fill cap/
dipstick to add oil.
CLOSEDOPEN
3. Reinstall the fuel cap and tighten. Always clean up
spilled fuel.
IMPORTANT:DO NOT OVERFILL!
OPERATION
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Be sure the depth control is in the "O" depth position and
Set the electric start switch to the ON position and hold
it until the engine starts. Always stand to the rear of the
trencher, away from the side delivery auger and digging
chain while starting the engine. Always start the trencher
at the job site and allow it to warm up. While the machine
is running, check that all controls are working properly
before using.
Move the choke control lever (if used for cold engine)
slowly back to the "RUN" position when the engine is
running well.
If the Trencher has not been running (cold engine), warm
up the engine by running the engine at half throttle for 3
to 4 minutes, then advance the engine throttle control to
the maximum speed.
Be sure the digging chain is not turning when the engine
is at an idle. Be sure the engine is off or at an idle before
moving the trencher at the job site.
NOTE: All depths are approximate. Actual depth may vary
depending upon soil conditions and trencher blade wear.
Also, soil conditions and operator experience will dictate
actual trenching action and speed
Notes:
Lock: When we put the anti-forward control handle in the
slot, the anti-forward controller lift up, don't touch the
wheel gear, we can push forward.
Loose: When we pull back the anti-forward control handle,
it will automatically loose the anti-forward controller
down on the wheel gear, the trencher can't move forward
and can only move backwards
Push forward the trencher to the work site, loose the
anti-forward control handle, then the trencher can only
move backwards. Clockwise rotate the depth control
handle and descend the chains to your desired depth.
Anticlockwise rotate the depth control handle and lift the
chains, lock the anti forward control handle, then the
trencher can be pushed forward.
STARTING
TRENCHING
A GENERAL DESCRIPTION ON HOW TO
TRENCH:
1. Anticlockwise rotate the
depth control handle
3. lock the anti-forward
control handle
4. Push Forward
2. The chains will li up
2. Clockwise rotate
1.loose the anti-forward
control handle
4. Trencher backwards
3.Move down
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OPERATION
Switching stop switch on handle.
Move the Throttle Lever to IDLE.
Recoil Start: Turn the Ignition Switch to the OFF position.
Electric Start: Turn the Key to the OFF position
If the Chain stops moving while digging trenches, the
engine should be stopped, take out the muds or anything
which stuck the chain, then restart the engine, and start
digging again.
There are two stop switches on the trencher; one on the
handle bar and one on the engine. Refer to the engine
manual for the switch location on your trencher. The
operator can turn the trencher off at any time by switch-
ing either stop switch to the "OFF" position. Both switch-
es must be "ON" before the engine can start.
STOPPING
WHEN BLOCKED
Always wear the proper clothing and protective gear. Eye
and ear protection, hard hat, boots, gloves and dust
masks may be required.
Keep hair, fingers, and all other body parts away from
openings and moving parts. Always wear, long pants,
boots, and gloves.
Secure hair so it is above shoulder length.
Do not operate trencher indoors. Outdoor use only.
Do not operate trencher when tired, ill, or under the
influence of alcohol, drugs, or medication.
Always assume the digging location contains under-
ground utilities. Contact appropriate utility company to
determine where electrical cables, gas lines, water lines,
etc. are buried before operation.
Always use extreme caution while operating tool. Be sure
of your footing and physical capabilities.
All the rack and pinion should be greased before every use.
Inspect entire trencher before each use. Replace
damaged or worn parts.
Check for fuel leaks and make sure all fasteners are in
place and securely fastened.
Replace digging blades that are severely worn. Be sure
the digging chain and engine is not moving.
OPERATOR SAFETY
TOOLS SAFETY
Refuel outdoors and where no sparks and flames.
Store fuel in a container approved for gasoline.
Do not smoke or allow smoking near fuel or the trencher
or while using the trencher.
Clean up all fuel spills before starting engine.
Move at least 10 feet away from fueling site before start-
ing engine.
Stop engine before removing fuel cap
Be sure that the area is clear of potential hazards, such
as pipes, rocks or other materials that could possibly
entangle itself around the digging chain or cause unstable
footing before using the trencher.
Keep others bystanders and helpers outside a 15 foot
hazard zone from the trencher. Hold the trencher handle
firmly with both hands.
Keep all your body and clothing away from the digging
chain, auger and other moving parts.
Inspect the digging site. Soil conditions, job specifica-
tions, and operator experience may dictate that a differ-
ent trencher or method be used to complete the job.
FUEL SAFETY
DIGGING SAFETY
STOPPING THE ENGINE FOLLOWING
THE PROCEDURES:
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MAINTAINING YOUR TRENCHER
MAINTAINING YOUR TRENCHER
Regular maintenance is the way to ensure the best perfor-
mance and long life of your machine. Please refer to this
manual and the engine manufacturer's user manual for
maintenance procedures.
Recommended engine oil 4-stroke gasoline engine oil SF
under APl service classification or SAE10W-30(equivalent
to SG class).
Before performing any maintenance procedure or inspec-
tion, stop the engine, wait five minutes to allow all parts
to cool.
Disconnect the spark plug wire, keeping it away from the
spark plug. Disconnect the Battery Terminals (Electric
start only).
Stop engine before removing fuel cap.
Use only genuine replacement parts of the engine manu-
facturer.
MAINTENANCE SAFETY
LUBRICATION
SAE
AMBIENT TEMPERATURE
Grease is applied to bearings, gears, and other areas that
require durable lubrication and sealing, helping to protect
the machine from premature wear and aging.
Keep all grease fittings clean and maintain them regular-
ly.
GREASE FITTING
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The mini trencher is designed to be transported via a van
or small trailer. The machine is equipped with grab bars
that are to be used for both lifting the machine, and strap-
ping it down. This machine weighs approximately 402lb
and should only be lifted using correct apparatus.
When the mini trencher is packaged in the plywood case,
we can carry machine by forklift.
Without package, we can lift the machine at the point of
lift label shown.
Tie the machine at the point of tying label when transport
for long distance to keep the machine stable.
When you finished using the mini trencher and it has
cooled, you must:
Cool engine before storage.
Clean the dumper.
Inspect for worn or damaged parts.
Choose covered storage location.
Prevent accidental starting.
Plan on exercising the engine at least monthly unless the
dumper is prepared for long term storage.
Always shut off the fuel valve and engine.
Always allow the engine to cool.
Store trencher and fuel where fuel vapors cannot reach
sources of combustion like, water heaters, electric
motors, switches, furnaces, etc.
Always secure this trencher with tie downs or similar
restraints when transporting.
The trencher shall be stored in a manner that prevents it
from falling, rolling or tipping over.
Note: There are legal road requirements for transiting mini
machines. It is the owner's responsibility to be aware of
these laws and to adhere to them.
Unleaded gasoline： Pump octane rating 86 or higher
This engine is certified to operate on unleaded gasoline. Unleaded gasoline produces fewer engine and spark plug depos-
its and extends exhaust system life.
RECOMMENDED FUEL
TRANSPORTING
STORING
TRANSPORTING AND STORING
TRANSPORTING AND STORING
Procedure
Check engine oil level
Check general equipment condition
Check wedge for sharpness
Grease surface of slide rail
Check belts
Grease rack and pinion
Check tire pressure
Clean engine exterior and cooling
Change Engine Oil
Replace air filter
Replace spark plug
Before Each Use
First time 5hours
Every 3 Hours Every 25 Hours Every 100 Hours
Regular Maintenance Checklist
18
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Before performing any maintenance
procedure or inspection, stop the engine,
wait five minutes to allow all parts to cool.
Disconnect the spark plug wire, keeping it
away from the spark plug.
Most problems are easy to fix. Consult the Troubleshoot-
ing Table below for common problems and their solutions.
If you continue to experience problems, contact the
dealers in your area.
Is the ignition switch in the "ON" position?
Is the fuel shut-off valve on?
Are you using fresh, clean gas? If the gas is old, change it. Use a fuel stabilizer if
you keep gas longer than 30 days. Is the spark plug clean? If the spark plug is dirty
or cracked, change it. If it's oily, leave it out, hold a rag over the plug hole and pull
the recoil cord several times to blow out any oil in the cylinder, then wipe off the
plug and reinsert it.
Check that the Throttle Lever is in the "Run" position. Is the air filter clean? If it's
dirty, change it following the procedure in the engine manufacturer's owner's
manual. Is the spark plug clean? If it's fouled or cracked, change it. If it's oily, leave
it out, hold a rag over the plug hole and pull your recoil cord several times to blow
out any oil in the cylinder, then wipe off the plug and reinsert it. Are you using fresh,
clean unleaded gasoline? If it's old, change it. Use a fuel stabilizer if you keep gaso-
line longer than 30 days. Does your engine have the right amount of clean oil? If it's
dirty, change it following the procedure in the engine manufacturer's owner's
manual. Check the oil level and adjust as needed.
Check the oil level and adjust as needed. Check the air filter and clean or replace if
needed. You may be using the wrong oil—too light for the temperature. Refer to
your Engine Owner's Manual for detailed information. Clean the cooling fins if
they're dirty.
TROUBLESHOOTING
TROUBLESHOOTING
SYMPTOM
POSSIBLE CAUSE
The engine won't start. (Please
refer to the engine user manual
for engine-specific procedures.)
The engine lacks power or is not
running smoothly. (Please refer
to the engine user manual for
engine-specific procedures.)
Engine smokes. (Please refer to
the engine user manual for
engine-specific procedures.)
19
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PARTS DIAGRAM
PARTS DIAGRAM
5123
9
10
98
76
1312
14
11
67
8
30
11
3212
33 31
3 34
28
29
79
108
135
105
106 107
28
29
79
37
62
9
10
9
8
60
75
76
75
74
73
73
69
68
71
70
61
87
84
866
86
8485
88
83
89
90
125
59
55
58
8
56
51
57
50
51
29
28
53
124
80
32
12
54
55
52 42
78
79
53
29
126
68
7172
67
81
77
63
6582
29
53
28
66
64
11
128
94
127
92
91
109
113
114
115
116
110
112
117
22
18
26
100
119
19
18
17
20 21
1918
2
36
3
38
132
100
26
133
131
100
26
25
19 18
16
15
26
24
17
27 29 28
23120
121
40
44
45
12
32
39
33
122
41
43
118
464748
103
134
102
101
37
130
99
98
97
96
95
95
1
2
4
36
335
93
129
13
111
20
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PARTS LIST
PARTS LIST
No. DESCRIPTION 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
26
27
28
29
Tension Spring
Trencher Welded Main Body
Type 1 Hex Nut M10
Right Gear
Bushing
Deep Groove Ball Bearing
TC Skeleton Oil Seal
Plain Washer Grade A 20
Small Round Nut M20
Lock Washer for Round Nut 20
Hex Head Bolt Full Thread M8×25
Plain Washer 8
Nonmetallic Insert Hex Lock Nut M8
Left Gear
Pressure Bar
Rubber Plate 1
Hex Head Bolt Full Thread M6×25
Plain Washer 6
Nonmetallic Insert Hex Lock Nut M6
Pressure Bar 2
Rubber Plate 2
Hex Head Bolt Full Thread M6×25
Anti-Tip Assembly
Pin Shaft Type B 10×40
Cotter Pin 4×32
Cotter Pin 3.2×32
Hex Head Bolt Full Thread M10×35
Nonmetallic Insert Hex Lock Nut M10
Plain Washer Grade A 10
1
1
4
1
2
6
4
7
6
3
27
33
26
1
1
1
7
15
11
1
1
4
1
2
2
5
2
15
19
No. DESCRIPTION QTY
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
Welded Outer Guard
Guard Assembly 1
Standard Spring Washer 8
Hex Flange Bolt M6×30
Hex Socket Cap Screw M10×45
Hex Head Bolt Full Thread M10×50
Hex Head Bolt Full Thread M10×70
Spring Cap Oil Cup Type B M10×1
Clamp Wire Harness Clip
Handle Grip
Locking Handle
Key Switch
Hex Flange Bolt M8×30
Choke Control
Hex Head Bolt M16×90
Hex Head Bolt M8×20
Hex Socket Button Head Screw M6×16
Saddle Spring Washer 6
Small Washer Grade A 6
Engine
Centrifugal Clutch Assembly
Reinforced Round Head Square Neck Bolt M10×45
Large Washer Grade A
Standard Spring Washer 10
Key B7×7×40
Plain Washer Grade A 24
Intermediate Drive Shaft
Bearing with Vertical Housing
Single Row Sprocket
1
1
27
8
1
1
2
2
2
2
1
1
2
1
1
4
2
2
2
1
1
8
1
11
1
3
1
2
1
21
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PARTS LIST
1
1
1
2
1
1
1
1
1
2
1
1
2
1
2
1
2
1
1
1
6
2
1
1
1
2
2
2
1
1
2
2
1
1
9
9
1
1
1
1
1
3
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
2
1
1
1
No. DESCRIPTION QTY
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
Standard Parallel Key Type A 5×5×50
Pulley
Short-Pitch Roller Chain
Toothed Belt
Trenching Spindle
Tilling Assembly
Hex Socket Cap Screw M10×70
Tilling Sleeve
Shaft Retaining Ring Type A 35
Tapered Roller Bearing
Shaft Retaining Ring Type A 75
Bearing Retainer Ring
Skeleton Oil Seal 42×62×8
Bearing Stop Block
Rubber O-Ring 69×3.55
Driven Sprocket 10A-33
Small Round Nut M30
Lock Washer for Round Nut 30
Standard Parallel Key Type A 8×7×28
Bracket
Hex Head Bolt Full Thread M10×25
Hex Head Bolt Full Thread M8×55
Standard Parallel Key Type A 8×7×25
Driving Sprocket
Trencher Welded Body
Circlip
End Cover
Bore Retaining Ring Type A 47
Hex Head Bolt M20×90
Nonmetallic Insert Hex Lock Nut M20
Hex Socket Cap Screw M16×100
No. DESCRIPTION QTY
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
Type 1 Hex Nut M16
Driven Sprocket
Trencher Chain – 4 mm
Ferrule
Cutter Head Weldment
Inner Tube Weldment
Lead Screw
One-Way Thrust Ball Bearing
Thin Hex Lock Nut M6
Hex Head Bolt M6×60
Pin Shaft Type B 10×26
Hex Head Bolt Class C M5×40
Nonmetallic Insert Thin Hex Lock Nut M5
Handle
Pin Shaft Type B
8-inch Caster
Thin Hex Lock Nut M12
Plain Washer 12
Hex Head Bolt Class A & B
Engine
Battery Box Weldment
Battery Box Upper Cover Weldment
Latch
Battery
Hex Head Bolt M8×16
Spring Washer 8
Plain Washer 8
Hex Socket Countersunk Screw M5×8
Rear Cover Plate
Welded Guardrail
Anti-Tip Assembly 2
22
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PARTS LIST
1
1
2
1
1
1
9
9
9
1
1
1
2
1
1
No. DESCRIPTION QTY
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
Lower Handle
Upper Handle
Wheel Assembly
Bearing Housing Guard Assembly
Chain Shaft Plate Assembly
Protective Cover
Chain Soil Scraper
Single Shaft Weldment
Double Trencher Shaft
Outer Square Tube Weldment
Rotating Plate Weldment
Linkage Assembly
Mounting Seat
Rotary Handle Weldment
Wheel Bracket Weldment
