INVERTER GENERATOR
USER'S MANUAL
R
GENMAX GENERATOR
WARNING: SAVE THIS MANUAL FOR FUTURE REFERENCE
This manual contains important information regarding safety. Operation,
maintenance and storage of this product. Before use, read carefully and
understand all cautions, warnings, instructions and product labels. Failure to do
so could result in serious personal injury and/or property damage.
GM4000XiD-NFT
Portable Dual Fuel Generator
4000/3200 3800/3000
1
UNPACKING
Always have assistance when lifting
the generator. The generator is heavy;
lifting it could cause bodily harm.
Avoid cutting on or near staples to
prevent personal injury.
Tools required - box cutter or similar device.
1. Carefully cut the packing tape on top of the carton.
2. Remove socket wrench, and oil funnel and save for
later.
3. Carefully cut two sides of the carton to remove the
generator.
WHAT COMES IN THE BOX
Spark Plug Socket Wrench (1)
Dual-Purpose Screwdriver (1)
Hexagonal Wrench (1)
User Manual (1)
Warranty Information (1)
Funnel (1)
Fuel Tank Connection Hose (1)
LPG Hose (1)
Exhaust Plug (1)
450ml 10W30 Oil(1)
DISCLAIMERS:
All information, illustrations and specifications in this manual are based on the latest information available at the
time of publishing. The illustrations used in this manual are intended as representative reference views only.
Moreover, because of our continuous product improvement policy, we may modify information, illustrations and/or
specifications to explain and/or exemplify a product, service or maintenance improvement. We reserve the right to
make any change at any time without notice. Some images may vary depending upon which model is shown.
ALL RIGHTS RESERVED:
No part of this publication may be reproduced or used in any form by any means - graphic, electronic or
mechanical, including photocopying, recording, taping or information storage and retrieval systems - without the
written permission of CHONGQING DINKING POWER MACHINERY CO., LTD
This manual contains important instructions for operating this inverter generator. For your
safety and the safety of others, be sure to read this manual thoroughly before operating the
generator. Failure to properly follow all instructions and precautions can cause you and others
to be seriously hurt or killed.
2
DESCRIPTION OF FITTINGS
Spark Plug Socket Wrench
Used in spark plug maintenance,
inspection, and installation.
Phillips and slot blade
screwdriver used for generator
maintenance.
Dual-Purpose Screwdriver Funnel
It's used to oil the generator.
Hexagonal Wrench
Used to remove and install
generator accessories.
Fuel Tank Connection Hose
It is used to connect the fuel tank
to the generator and transmit
gasoline to the generator.
Exhaust Plug
Used to drain air inside the tank
connection hose.
LPG Hose
1485 mm
Hose length
1.312"-5ACME
Inside Diameter
LPG Hose
Pressure 1psi
First Stage Reducing Valve
Gas Cylinder Joint
5/8"-18UNF
Inside Diameter
Connect the LPG tank to transmit LPG fuel to the generator.
Note: Actual tools may differ in appearance or design from image shown.
450ml 10W30 Oil
Be sure to add oil before starting
the generator.
3
LIMITED WARRANTY
1. DURATION : One (1) year from the date of purchase by the original purchaser ( retail customer ) on products used
solely for consumer applications; if a product is used for business, commercial, or industrial applications, the warranty
per iod will be limited to ninety (90) days from the date of purchase.
2. WHO GIVES THIS WARRANTY (WARRANTOR):
CHONGQING DINKING POWER MACHINERY CO., LTD
3. WHO RECEIVES THIS WARRANTY(PURCHASER):The original purchaser (other than for purposes of resale) of
the Genmax's inverter.
4. WHAT PRODUCTS ARE COVERED BY THIS WARRANTY: Any portable generator supplied or manufactured by
Warrantor.
5. WHAT IS COVERED UNDER THIS WARRANTY: Substantial defects on material and workmanship which occur
within the duration of the warranty period.
6. WHAT IS NOT COVERED UNDER THIS WARRANTY:
A. Transportation changes for sending the product to Warrantor or its authorized service representative for warranty
service, or for shipping repaired or replacement products back to the customer; these charges must be borne by the
customer.
B. Damages caused by abuse, accident, shipping, misuse, overloading, modification, and the effects of corrosion,
erosion and normal wear and tear.
C. Warranty is voided if the customer fails to install, maintain and operate the product in accordance with the
instructions and recommendations set forth in the owner's manual(s), or if the product is used as rental equipment.
D. Pre-delivery service, i.e. assembly, oil or lubricants, and adjustment.
E. Items or service that are normally required to maintain the product, i.e. lubricants and filters.
F. Warrantor will not pay for repairs or adjustments to the product, or for any costs or labour, performed without
Warrantor's prior authorization.
EXCLUSIONS AND LIMITATIONS : Warrantor makes no other warranty of any kind, express or implied. Implied
warranties, including warranties of merchantability and of fitness for a particular purpose, are hereby disclaimed. This
warranty service described above is the exclusive remedy under this warranty; liability for incidental and consequential
damages is excluded to the extent permitted by law.
7. RESPONSIBILITIES OF PURCHASER UNDER THIS WARRANTY:
A. The purchaser must provide dated proof of purchase and must notify Warrantor within the warranty period.
B. Deliver or ship the serviced generator or component to the nearest Warrantor's authorized service representative.
Freight costs, if any, must be borne by the purchaser.
8. HAVE QUESTIONS?
Email: service@genmaxpower.com Phone: 866-960-2920
Model Number: _____________________________________
Name: ___________________________________________
Serial Number: ______________________________________
Street Address: ___________________________________
Date Purchased: ____________________________________
Purchased From: ____________________________________
City, State, ZIP: ____________________________________
Country: __________________________________________
Phone Number: ___________________________________
E-Mail: ___________________________________________
WARRANTY CARD
R
4
TABLE OF CONTENTS
LIMITED WARRANTY
3
SAFETY WARNING
5
SAFETY INSTRUCTIONS
6
NAMES OF COMPONENTS
8
CONTROL FUNCTIONS
10
PREPARATIONS
11
1.Fuel..........................................................................................................................................1 1
2.LPG...........................................................................................................................................12
2.Oil............................................................................................................................................13
3.Pre-Operation Inspection........................................................................................................13
STARTING UP THE GENERATOR
14
SHUTTING DOWN THE GENERATOR
16
USING THE GENERATOR
17
1.Service Environment of the Generator......................................................................................17
2.Generator Wiring..........................................................................................................17
3.Generator Grounding................................................................................................................18
4.Parallel and Series Operation.................................................................................................19
SERVICE AND MAINTENANCE
20
1.Spark Plug Inspection...............................................................................................................21
2.Adjustment of the Carburetor.....................................................................................................22
3.Replacement of Oil....................................................................................................................22
4.Air Filter....................................................................................................................................23
STORAGE AND TRANSPORT
24
1.Generator Storage.....................................................................................................................24
2.Generator Transport..................................................................................................................25
TROUBLESHOOTING
25
TECHNICAL PARAMETERS
26
CIRCUIT DIAGRAM
27
CHOOSING A GENERATOR
29
OPTIONAL
30
5
SAFETY WARNING
Personal and property safeties of you and others are very vital. Please read the Safety
Warning in the User's Manual and the decals of the generator set carefully.The Safety
Warning can alert you to those potential hazards that could harm you and others. In front
of each Safety Warning, there is one of four words "DANGER" "WARNING",
"ATTENTION", and "CAREFUL". Details are as follows:
Failure to follow the instruction will result in being
in peril of your life or extremely serious injury.
Failure to follow the instruction will result in being
in peril of your life or very serious injury.
Failure to follow the instruction will result in minor
injury.
Failure to follow the instruction will result in the
damage to your generator set and other properties.
For portable generators where the neutral is floating, the operator's manual shall include the following wording CO
DETECT technology monitors the accumulation of carbon monoxide (CO), a poisonous gas produced by engine
exhaust when the generator is running. If CO Sensor detects unsafe elevated levels of CO gas, it automatically
shuts off the engine. CO Sensor is not a substitute for an indoor carbon monoxide alarm or for safe operation. DO
NOT allow engine exhaust fumes to enter a confined area through windows, doors, vents or other openings.
Generators must ALWAYS be used outdoors, far away from occupied buildings with engine exhaust pointed away
from people and buildings. Meets the requirements of ANSI/PGMA G300-2018.
CO TECHNICAL WARNING
For portable generators where the neutral is floating, the operator's manual shall include the following wording or
equivalent:
The portable generator stator winding is isolated from the frame and from the AC receptacle ground pin; and
Electrical devices that require a connection between one conductor pin and the grounded receptacle pin may not
function properly.
NEUTRAL FLOATING
6
SAFETY INSTRUCTIONS
Before operating the generator, it will help you avoid accidents to read and understand the Manual and
familiarize yourself with the safe operation procedures of the generator.
Please do not use indoors
Please do not use in humid
environment
Please do not connect it to
household appliances directly
Please do not smoke when refueling
Please do not spill when refueling
Please shut down the generator
before refueling
7
SAFETY INSTRUCTIONS
SAFETY LABELS AND DECALS
8
NAMES OF COMPONENTS
① Recoil Handle: Pull to start the engine.
② Control Panel: Contains the reset breaker, outlets
and warning lights.
③ Generator Frame: Protects the generator for easy
movement.
④ Inverter: A device that converts the power supply
generated by a permanent magnet motor into a DC
power supply, and converts the DC power supply after
rectification into an AC power supply whose frequency
and voltage can be adjusted, and at the same time
controls the ability of the engine to adjust the speed
according to the load.
⑤ Air Cleaner: Purify the air.
⑥ Magnetic Oil Dipstick: absorb iron filings in the oil,
it is recommended to screw down the magnetic oil
dipstick and clean it every 50 hours.
⑦ Muffler: Avoid contact until the engine is cooled
down. The spark arrestor prevents sparks from exiting
the muffler. It must be removed for servicing.
⑧ Cylinder Head
⑨ Carburetor
1
2
3
4
5
7
8
9
6
9
NAMES OF COMPONENTS
INSTALL RUBBER FEET AND RACK PLUG COVER
1. Install the plug cover at the
bottom of the rack column.
2. Place the elastic nut into the
groove at the lower side of the
rack, and align the nut hole
with the rubber foot mounting
hole. (Note: the side with the
ball goes into the groove)
3. Thread the bolts through the
rubber feet and elastic nuts,
and secure the rubber feet to
the rack using a socket
wrench.
Bolt M6×25
QTY: 4
Elastic Nut
QTY: 4
Plug Cover
QTY: 4
Rubber Foot
QTY: 4
Socket Wrench
QTY: 4
List of Parts
Plug Cover
Elastic Nut
Rubber Foot
M6*25 Bolts
Socket Wrench
10
CONTROL FUNCTIONS
① 120V AC 20A 5-20R Outlet: The outlet is capable of
carrying a maximum of 20 amps.
② DC Cigarette Lighter Outlet: 12V DC 8.3A.
③ Reset: If the inverter is overloaded, the reset
breaker will trip. The engine will continue to run, but
there will be no output from the inverter. Unplug the
devices and reduce the load. Push in the reset breaker
to reset it.
④ Low Idle: When turned to the ON position, the
engine will sense the load needed and run at a slower
RPM to save fuel.
⑤ Ground Terminal: The ground terminal is used to
externally ground the inverter.
⑥ Low Oil Alarm: Indicates low oil level.
⑦ Overload Alarm: Indicates that the inverter is
overloaded.
⑧ Output Indicator: Indicates the inverter is ready to
be used.
⑨ 120V AC 30A L5-30R Outlet: The outlet is capable
of carrying a maximum of 30 amps.
⑩ AC Protector: If the generator is overload, the AC
protector will trip to block current.
⑪ Parallel Connectors: To increase AC power output,
the connector sockets are used to connect the two
same type generators with special parallel kit
GM6000SPK sold by GENMAX. The connector sockets
is only used to connect two inverter generators. They
can not used for AC power output. The special
paralleling kit GM6000SPK shall be purchased
separately, and they shall be approved by certification
body.
⑫ Fuel Source Switch: Gasoline and LPG switch
back and forth.
⑬ Engine Switch: Manage battery power and
shutdown.
⑭ Choke Switch: when cold start, properly close part
of the air inlet to improve the engine start performance,
after normal operation, the choke should be fully open,
otherwise the engine can not run properly because of
too thick mixture and cause too much oil consumption.
⑮ DC Protector: If the generator is overload, the DC
protector will trip to block current.
⑯ LPG Hose Connection Port: When LPG gas is
used, install the dedicated LPG hose on the connection
port.
⑰ Fuel Hose Connection Port: When using fuel, the
special fuel tank hose should be installed in the
connection port.
⑱ Three in One Digital Display Table: Voltage,
frequency, time display, press the button to switch.
⑲ CO Alarm: Flashing red light: dangerous levels
ofcarbon monoxide gas have built up leave
immediately until area has aired out. Move generator
to well-ventilated area before operation. Flashing
yellow light: carbon monoxide sensor malfunction.
Sensor needs service.
⑳ : When Series Connectors (120/240V OUTPUT)
using parallel kits, two 120V generators can output
240V by connecting this interface.
For E-Start (Optional): Hole reserved for electric
start button.
CONTROL PANEL FEATURES GM4000XiD-NFT
18
13 11
20
10
15
14
19
12 17
16
21
21
11
PREPARATIONS
Fuel
1
DANGER
• Fuel is flammable and toxic, please read the Safety Instruction carefully before refueling;
• Do not fuel too full, otherwise fuel will spill after fuel tank is warmed;
• After refueling, confirm that the fuel tank cap has been tightened.
ATTENTION
• After refueling, dry gasoline residue with a clean and soft cloth in time to avoid damaging plastic
enclosure;
• Unleaded gasoline must be used, as leaded gasoline can seriously damage internal parts of the
generator.
2. Connect the fuel tank connection hose to the generator. The arrow
indicates that the outward interface is to be connected to the generator.
Note: When connecting the hose, make sure that the connector is
clamped to the port of the panel and fuel tank. Hear a crisp sound to
prove that it has been clamped.
3. Add appropriate amount of gasoline to the fuel tank.
Note: The tank should be placed higher than the engine.
Drain the air inside the tank connection hose
1. Press the hand pump 8-10 times continuously to
let the gasoline in the tank enter the hose so that
the gasoline fills the oil circuit of the generator.
Note: After each press of the hand pump, wait for
the hand pump to return to its original state before
performing the next compression (expected to
recover within 2s).
2. Unplug the quick plug connected to the hose on
the panel and connect the exhaust plug to the
hose.
Exhaust Plug
Used to drain air inside the
tank connection hose.
Oil Outlet
3. The oil outlet end of the exhaust plug is aligned
with the fuel tank filler (The purpose is to recover
the gasoline in the hose and prevent it from flowing
to the ground), press the hand pump 5 times in a
row, and after the air in the hose is completely
discharged, unplug the exhaust plug and plug it
back into the oil inlet on the panel.
Connecting fuel tank
1. Connect the fuel tank connection hose to
the fuel tank. The arrow identifier points to
the side of the hose where the port connects
to the fuel tank.
Press the clamp to
open the clasp
12
PREPARATIONS
Tip: Repeat step 2 and 3 after moving the tank
halfway through or refueling the tank.
WARNING
Do not place the oil outlet of the tank and the fuel hose on this side of the muffler, or the muffler may
be dangerous when it heats up.
LPG
2
ATTENTION
• Propane tanks that use liquid withdrawal system can not be used on these modes.
• Confirm that the re-qualification date on the tank has not expired.
• DO NOT use included LPG hose for any other appliances.
• All new propane tanks must be purged of air and moisture prior to filling. Used propane tanks that
have not been plugged or kept closed must also be purged. The purging process should be done by
a propane tank supplier (propane tanks from an exchange supplier should have been purged and
filled properly).
• ALWAYS position the propane tank so the connection between the valve and the gas inlet will not
cause sharp bends or kinks in the hose.
WARNING
Explosion hazard. DO NOT start generator if you smell propane. ALWAYS fully close the propane
tank valve and disconnect the LPG hose from the generator when not in use.
Connecting an LPG Tank
1. Turn the generator OFF and place on a flat surface in a well ventilated area.
2. Verify that the LPG tank valve is in the fully closed position.
3. Connect the LPG hose to the LPG tank;
4. Tighten the other end of the LPG hose to the generator intake. Tighten the
LPG hose connector with an adjustable wrench until it is snug. DO NOT
overtighten.
IMPORTANT: DO NOT use thread seal tape or any other type of sealant to
seal the LPG hose connection.
13
PREPARATIONS
Pre-use Inspection
4
WARNING
Even if the generator is not in service, its important component may suddenly fails. Before the
generator is started up, if any of following components is unable to work properly, please inspect
and repair carefully.
Tip: The condition of the generator shall be inspected before using every time.
Pre-operation inspection
Fuel
• Check fuel level in fuel tank of the generator, and fuel it if necessary.
Oil
• Check oil level of the generator, and fill oil if necessary;
• Check whether there is oil leaking.
Abnormal conditions during operation
• Check operating condition of the generator;
• If there is any need, please do not hesitate to consult your dealer.
Oil
3
No oil is filled into this generator when being delivered. Do not start up the generator without filling sufficient oil.
Please place the generator onto a horizontal plane surface;
1.
Unscrew oil dipstick, Fill in 0.12gal (0.45L) oil
(SAE 10W/30 oil is recommended, of which
the grade is API standard Type SE or higher);
2.
Tighten the oil dipstick.
3.
5. Turn the LPG tank valve to the fully open position. Check all connections for leaks by wetting the fittings
with a solution of soap and water. Bubbles which appear or bubbles which grow indicate that a leak exists. If
a leak exists at a fitting, turn the LPG tank valve to the fully closed position and tighten the fitting. Open the
LPG tank valve and recheck the fitting with the soap and water solution. If the leak continues or if the leak is
not at a fitting then DO NOT use the generator.
Note: It is not recommended that the fuel tank and LPG be connected to the generator at the
same time.
Don't go over the scale
14
STARTING UP THE GENERATOR
Remove the load from all output ends;
1.
a. Gasoline:
1. Connect the fuel tank. (See page 11 for connection steps)
2. Press Fuel Source Switch to gasoline.
2.
b. LPG:
1. Connect the LPG hose to the LPG tank. (See page 12 for connection
steps)
2. Press the Fuel Source Switch to LPG.
Select the Fuel:
Press Low Idle Switch to "OFF";
3.
Press Engine Switch to "ON";
4.
Pull the choke out;
Tip: There is no need to pull out the damper when the engine is started in
warm state.
5.
15
Plug in after started.
8.
After starting push the choke in.
7.
STARTING UP THE GENERATOR
LPG startup is difficult ?
When both gasoline and propane are present in the generator it is recommended to start the generator on
gasoline first, allow the engine to stabilize then switch to propane.
1. Ensure the LPG supply hose is securely attached
and Close the LPG valve completely.
2. Fuel source rocker switch to gasoline.
CLOSE
3. Follow the startup steps to start the generator.
4. Open the LPG valve completely.
5. Fuel source switch to LPG.
OPEN
Note: After successful LPG startup, unplug the fuel tank hose.
Select Boot Mode:
a. Hand Starting: First gently pull startup handle, until guy cable is
hooked tight, and then pull it with effort.
Tip: When pulling the hand starter, hold generator carrying handle
firm, to prevent the generator from overturning.
b. For E-Start: Press the button to start the generator.
Tip: This boot mode can only be selected if the electric boot
function is installed.
6.
a
b
OPTIONAL
16
Unplug the power cord;
1.
Remove gasoline tank hose (or LPG hose)
and replace the dust cap.
3.
SHUTTING DOWN THE GENERATOR
Set Engine Switch to "OFF" position.
2.
17
USING THE GENERATOR
Service Environment of the Generator
1
• Applicable temperature: -5°C~ 40°C;
• Applicable humidity: below 95%;
• Applicable altitude: regions below 1,500 m (It shall be used by reducing power in regions above 1,000 m).
Standard atmospheric condition
• Ambient temperature Tr: 298k (25°C)
• Relative air humidity Фr: 30%
• Absolute atmospheric pressure Pr: 100kPa
When actual environmental condition is inconsistent with the condition of output power of the generator
set:
• Every 5°C of increase in ambient temperature will reduce the power of generator by about 2%.
• Every 30% of increase in relative humidity of air will reduce the power of generator by about 1.5%.
• Every 300 m rising of ASL will reduce the power the generator by about 4.5%.
Generator Wiring
2
• When the generator is connected to household power source as a backup power supply, the connection shall be
carried out by a professional electrician or a person familiar with electricity.
• After connecting the load to the generator, check carefully whether electrical connection is safe and reliable.
Improper electrical connection may cause generator damage, burning or fire.
• Avoid connecting this generator to commercial power outlet.
• When extending the cable, be sure not to exceed its length.
① 60m cross-section area is 1.5mm²
② 100m cross-section area is 2.5mm²
• The appearance of extension cable shall be protected by a layer of tough and elastic rubber cover (IEC25) or
other substitutes.
OK
OK
18
USING THE GENERATOR
Connection of AC power
WARNING
All electrical equipment shall be disconnected before inserting the plug.
ATTENTION
• Make sure that all electrical equipment, including wires and plugs, are in good condition before
connecting to the generator;
• Make sure that all loads driven by the generator are within rated load range;
• Make sure that load current is within rated current range of rated socket.
Tip: Make sure that the generator set is grounded, and if electrical equipment requires
grounding, the generator set must be grounded.
① Start up the engine;
② Turn energy-saving switch to "ON";
③ Insert the plug into AC outlet;
④ Make sure that AC indicator is lit up;
⑤ Switch on electrical equipment.
Tip: Before increasing engine speed, energy-
saving switch must be switched to "OFF". If the
generator set supplies power to multi loads or
electrical equipment, start from large to small
according to the size of each electrical
equipment.
Generator Grounding
3
① Please use grounding wire with sufficient electrical energy capacity;
② Connect one end of grounding wire reliable to grounding bolt on control panel
of the generator set;
③ Insert grounding body (iron rod with a diameter of 5 ~ 10mm) 200mm below
into the earth and lead it out with conductor;
④ Connect the other end of the grounding wire reliable to the led wire of
grounding body.
In order to prevent any damage to the generator caused by electric shock or improper electrical application, it is
recommended that the generator is grounded with good conductor with insulating sheath.
Tip: How to change the grounding method please refer to the website: https://www.genmaxpower.com/page/faq
19
USING THE GENERATOR
Parallel and Series Operation
4
To increase AC power output, the connector sockets are used to connect the two same type generators with
special parallel kit GM6000SPK sold by GENMAX. The connector sockets is only used to connect two inverter
generators. They can not used for AC power output. The special paralleling kit GM6000SPK shall be purchased
separately, and they shall be approved by certification body. Follow the instructions included with your parallel
connection kit for proper installation and operation.
WARNING
TO PREVENT SERIOUS INJURY, DEATH, AND GENERATOR AND/OR EQUIPMENT DAMAGE FROM
ELECTRIC SHOCK AND FIRE:
1. Follow Parallel Kit instructions provided with Kit for connection and use of a Parallel Kit.
2. Only connect two identical Inverter Generators together using a Parallel Kit.
3. Connect Parallel Kit only to terminals marked "Parallel Outlets" on the front of the Generator.
4. Do not remove or connect a Parallel Kit while the Generator is running.
5. Do not use a Parallel Kit that is attached to only one Generator.
In parallel, the two generators should be connected to two fuel tanks. You cannot use the same tank
to fuel two generators.
Connectors (Red) ①
Connectors (Red) ①
Ground Connectors (Ring) ③
Connectors (Black) ②
Ground Connectors (Ring) ③
Series Connector ④
Connectors (Black) ②
Parallel Connectors (120V OUTPUT): Connect the parallel cables of
connector (red) ① and connector (black) ② to the parallel ports of
corresponding colors on the generator control panel; Connect the
ground ring ③ to the generator ground terminal, and connect the
other generator in the same way. Press the voltage selector switch to
120V ONLY.
Series Connectors (120/240V OUTPUT): Connect the parallel
cables of connector (red) ① and connector (black) ② to the parallel
ports of corresponding colors on the generator control panel; Connect
the ground ring ③ to the generator ground terminal; Connect the
series connector ④ to the generator series connection port, and
tighten the series connector nut. Connect the other generator in the
same way. Press the voltage selector switch to 120/240V.
20
SERVICE AND MAINTENANCE
Good maintenance and service is the best guarantee for safe, economical and zero-failure operation. It also
contributes to environmental protection.
In order to keep the generator in good condition, you must inspect and maintain it regularly. The maintenance
schedule is as follows:
Maintenance cycle
Item
Each
First in 1 month
or 20 hours
Then every three
months or every
50 hours
100 hours per
year or use
Engine oil
Gearbox gear
Oil (if any)
Air cleaner
element
Settling cup (if any)
Spark plug
Spark eliminator
Idle speed
(if any)**
Valve clearance**
Fuel tank and
fuel filter***
Fuel line
Cylinder head,
piston
Displacement < 225cc, every 125 hours; displacement
capacity ≥ 225cc, every 250 hours.
Check-fill
Replace
Replace
Check oil
Inspection
Clean
Replace
Clean
Clean-adjust
Clean
Check-adjust
Check-adjust
Clean
Inspection
Remove
carbon
deposit**
Every two years (Please replace if necessary)
√
√ √
√
√ √
√
√
√
√
√*
√
√
√
√
* heseT items shall be replaced if necessary;
** heT se items shall be maintained by the dealer authorized by the Company, unless the
user has proper tools and maintenance ability.
ATTENTION
• If it often works under high temperature or high load, oil shall be changed every 25 hours;
• If it often works in dusty or harsh environment, air cleaner element shall be cleaned every 10 hours. If
necessary, the air cleaner element shall be replaced every 25 hours;
• It shall be maintained on spot-inspection cycle and time, whichever is earlier;
• If maintenance cycle time has elapsed, perform the maintenance as soon as possible as per the table
above.
21
SERVICE AND MAINTENANCE
WARNING
Please shut down the engine first before performing any maintenance. The engine shall be placed in a
horizontal position. In order to prevent the engine from starting up, separate spark plug cap shall be
separated from spark plug.
Do not use it indoors or use it in a tunnel, cave or other places ventilated poorly. Make sure that work area is
well ventilated. Exhaust gas from the engine contains toxic gases, carbon oxides, and the inhalation can
cause shock, loss of consciousness, and even death.
Spark Plug Inspection
1
Spark plug is an important part of the generator, which must be inspected regularly.
Remove the high voltage assembly;
1.
Insert the screwdriver into the sleeve, to screw it counterclockwise, and then
remove the spark plug;
2.
Check whether there is discoloration, and remove carbon deposits.Check
whether there is little pale to moderate brown on ceramic cores around
center electrode of the spark plug;
3.
Check the model of spark plug and clearance.
Spark plug gap: 0.7-0.8mm
Standard spark:
4.
Tip: The spark plug clearance is required to be measured by line thickness gauge, which shall be adjusted if
necessary.
BRANDBRAND MODEL
NGK
C7HSA
CR6HSA
TORCH A5RTC
0.7~0.8mm
22
SERVICE AND MAINTENANCE
Install the spark plugs in reverse order of removal.
Spark plug torque: 14±1N.m(123.9±8.8in-lb)
5.
Tip: If there is no torque wrench when installing the spark plug, a better estimation method is to screw it 1/4-1/2
turns by force after screwing it in place, but the spark plug shall be screwed to specified torque as soon as
possible.
Adjustment of the Carburetor
2
The carburetor is an important components of the engine. The adjustment shall be carried out by a dealer with
professional knowledge, professional data and equipment, to ensure that the adjustment is proper.
Replacement of Oil
3
WARNING
Do not drain the oil immediately after turning off the generator. Oil temperature is very high, when
operating, take care to avoid scalding.
Put the generator on a horizontal surface, start the generator, run it for a few minutes to increase its
temperature, and then turn off the engine;
1.
Unscrew oil dipstick;
2.
Place the container and tilt the machine to drain the oil.
3.
23
SERVICE AND MAINTENANCE
Refill oil to a proper level, tighten oil dipstick,
cover external cover plate and tighten the knob.
4.
Recommended oil: SAE S10W/30
Oil grade: API standard Model SJ or higher
Volume: 0.12gal (0.45L)
Air Filter
4
Dirty air cleaner may prevent air from flowing into the carburetor. In order to prevent failure of the carburetor,
please maintain air cleaner regularly. If being used in a dusty environment, it shall be maintained frequently.
Remove screws, to remove cover plate of air
cleaner ;
1.
Clean foam cleaner element with cleaning solvent and blow it dry, Put a few
drops of oil on the filter element;
2.
ATTENTION
Be sure not to twist the foam cleaner element forcibly to avoid damage.
Put foam cleaner element into air cleaner;
Tip: Make sure that the surface of foam cleaner element is in close contact
with air cleaner, and there shall be no gap leaking air. Be sure not to start the
engine before air cleaner is assembled, because it will generate excessive
toxic gas and wear the cylinder;
3.
Reassemble empty air cleaner cap back to original position, and tighten
screws.
4.
24
STORAGE AND TRANSPORT
Generator Storage
1
If it is stored long-term, in order to prevent aging, you shall take some storage measures.
Start up the engine to burn off fuel in the carburetor, and then shut it down.
1.
Tip: Do not connect any electrical equipment. Running time of the engine depends on remaining fuel in the fuel
tank.
Locate the carburetor nozzle, connect a hose or something else to drain the
remaining gasoline, and place a suitable container under it to capture the
discharged fuel.
2.
Loosen the carburetor drain screws until you see fuel draining from the
carburetor.
3.
Allow fuel to drain into the container and tighten the drain screws on the
carburetor.
4.
Unscrew oil dipstick, and drain oil in the crankcase off. Fill new oil to upper oil limit, and then assemble
oil dipstick.
5.
Gently pull startup handle until you feel resistance, allowing both inlet valve
and exhaust valve to be closed.
6.
Place the generator set in a clean and dry area.
7.
Generator Transport
2
• When the generator set is transported, it shall be ensured that there is no fuel spilling;
• Do not fill excessive fuel into fuel tank;
• Do not run the generator, and avoid direct sunlight;
• Do not transport the generator set on rough road for long time.
25
TROUBLESHOOTING
26
TROUBLESHOOTING
27
TECHNICAL PARAMETERS
Item
GM4000XiD-NFT
Engine Model
Engine Type
Displacement (cc)
Gas Distribution Mode
Cooling Mode
Rated Speed (RPM)
Starting Method
Fuel Type and Grade
Lubricating Oil Capacity (gal)
Lubricating Oil Model
164F/P-2
145
OHV
Forced cooling wind
4850
Recoil start
Vehicle-use unleaded gasoline
SAE 10W/30
0.12 (0.45L)
Noise dB (at 7m)(25% load)
Rated Power (kW)
Max. Power (kW)
Rated Voltage (V)
Rated Frequency (Hz)
Rated Power Factor
Phase Number
65
3.2(GAS.)/3.0(LPG)
4.0(GAS.)/3.8(LPG)
120
60
1
Single phase
Run Time @ 25% (h)
Depends on the fuel tank volume
Overall Dimension (in.)
Net Weight (lb.)
18.8×14.5×14.8 (480x370x376mm)
58.4 (26.5kg)
Stroke x Bore (mm)
64x45
4-stroke
Fuel Consumption Rate
(25% load)(L/h)
THD
Fuel Consumption Rate
(100% load)(L/h)
0.64
1.79
≤5%
Valve Clearance
Input valve：0.03~0.08mm, Output valve：0.03~0.08mm
LPG Consumption Rate
(25% load)(kg/h)
LPG Consumption Rate
(100% load)(kg/h)
0.45
0.9
28
CIRCUIT DIAGRAM
GM4000XiD-NFT SCHEMATICS
Series port
29
CHOOSING
A GENERATOR
1
R
30
OPTIONAL
Wheel and Telescopic Rod
Make it easier to move around.
Toolbox
It can be used to store tools
that may be used by the
generator, such as spark plug
socket wrench, dual-purpose
screwdriver, and LPG hose.
Electric Start
Button start, more easy and
simple.
Series and Parallel Kit
2 sets of GENMAX 120V inverter
generators are connected in series
with our special series-parallel box
to realize the conversion of 120V
to 240V output, so as to achieve
changeable usage scenarios and
double the power.
Fuel Tank
It can store 14.5L gasoline and
connect the fuel hose to fuel
the generator.
Choose the features you need to upgrade your generator, you can use any
combination.
For more information about Optional features, please refer to: Http://www.genmaxpower.com
Connectors (Red)
Ground Connectors (Ring)
Connectors (Black)
120/240V Connector
31
In production management, based on orderly, efficient, scientific principles. trying to do as
better as possible in product design, development, production, inspection,etc. to make our
production can keep orderly . And will continue to make improvement to make sure that
keep the competitiveness.
Welcome friends at home and abroad to visit and guide, work together to create
brilliant.
Phone
866-960-2920
service@genmaxpower.com
Http://www.genmaxpower.com
Caojie Industrial Park,Hechuan District,Chongqing
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6800.J30.GEM.02.01 V3
