1800W PORTABLE
GENERATOR
Model # 56180
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IMPORTANT:
Your new tool has been engineered and manufactured to WEN’s highest standards for dependability,
ease of operation, and operator safety. When properly cared for, this product will supply you years
of rugged, trouble-free performance. Pay close attention to the rules for safe operation, warnings,
and cautions. If you use your tool properly and for intended purpose, you will enjoy years of safe,
reliable service.
NEED HELP? CONTACT US!
Have product questions? Need technical support?
Please feel free to contact us at:
800-232-1195
(M-F 8AM-5PM CST)
techsupport@wenproducts.com
WENPRODUCTS.COM
TABLE OF CONTENTS
Generator Identification
Service Record
Introduction
Safety Information
General Safety Procedures
Important Safety Instructions
Generator Components
Generator Preperation
Starting the Generator
Stopping the Generator
Subsequent Starting of the Generator
Using the Generator
Maintenance & Care
Storage & Transport
Specifications
Troubleshooting
Exploded View and Parts List
Wiring Diagram
Warranty Statement
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3
4
4
5
6
7
8
10
12
12
14
16
20
21
22
23
27
28
2
GENERATOR IDENTIFICATION
If assistance for information or service is required, please contact the Customer Service Help Line by calling
800-232-1195; customer will be asked to provide generator information when calling.
Refer to the illustration below for the location of the serial number. Record generator information in the spaces
provided below.
DATE OF PURCHASE: ______________________________________________
PURCHASED FROM: ______________________________________________
GENERATOR MODEL NUMBER: 56180
ENGINE SERIAL NUMBER: _________________________________________
Change Oil
Change Spark Plug
Clean Fuel Tank
Clean Air Filter
Serial Number
SERVICE RECORD
Record Service Dates:
Date Date Date Date Date Date
3
INTRODUCTION
Thank You for Purchasing a WEN® Product. This manual provides information regarding the safe operation
and maintenance of this product. Every effort has been made to ensure the accuracy of the information in this
manual. WEN® reserves the right to change this product and specifications at any time without prior notice.
Please keep this manual available to all users during the entire life of the generator.
This manual contains special messages to bring attention to potential safety concerns, generator damage as well as helpful operating and servicing information. Please read all the
information carefully to avoid injury and machine damage.
QUESTIONS? PROBLEMS?
In order to answer questions and solve problems in the most efficient and speedy manner, contact Customer
Service at (800) 232-1195, M-F 8-5 CST
NOTICE REGARDING EMISSIONS
Engines that are certified to comply with U.S. EPA emission regulations for SORE (Small Off Road Equipment),
are certified to operate on regular unleaded gasoline, and may include the following emission control systems:
(EM) Engine Modifications and (TWC) Three-Way Catalyst (if so equipped).
SAFETY INFORMATION
Before operating this generator read and observe all warnings, cautions, and instructions on the generator and in
this Owner’s Manual.
NOTE: The following safety information is not meant to cover all possible conditions and situations that may occur. Read the entire Owner’s Manual for safety and operating instructions. Failure to follow instructions and safety
information could result in serious injury or death.
This safety alert symbol is used to identify safety information about hazards that can result in personal injury.
A signal word (DANGER, WARNING, or CAUTION) is used with the alert symbol to indicate the
likelihood and the potential severity of injury. In addition, a hazard symbol may be used to represent
the type of hazard.
DANGER indicates a hazard, which, if not avoided, will result in death or serious injury.
WARNING indicates a hazard, which, if not avoided, could result in death or serious injury.
CAUTION indicates a hazard, which, if not avoided, might result in minor or moderate injury.
CAUTION when used without the alert symbol, indicates a situation that could result in damage to the engine or
generator.
4
GENERAL SAFETY PROCEDURES
For any questions regarding the hazard and safety notices listed in this manual or on the product, please call (800)
232-1195 M-F 8-5 CST before using the generator.
DANGER: CARBON MONOXIDE
Using a generator indoors CAN KILL YOU IN MINUTES. Generator exhaust contains carbon monoxide (CO).
This is a poison gas you cannot see or smell. If you can smell the generator exhaust, you are breathing CO. But
even if you cannot smell the exhaust, you could be breathing CO.
NEVER use a generator inside homes, garages, crawlspaces, or other partly enclosed areas. Deadly levels
of carbon monoxide can build up in these areas. Using a fan or opening windows and doors does NOT
supply enough fresh air. ONLY use a generator outside and far away from windows, doors, and vents. These openings can pull in generator exhaust.
Even if you use a generator correctly, CO may leak into the home. ALWAYS use a battery-powered or batterybackup CO alarm in the home. If you start to feel sick, dizzy, or weak after the generator has been running, move
to fresh air RIGHT AWAY. See a doctor. You may have carbon monoxide poisoning.
WARNING: The exhaust from this product contains chemicals known to the State of California to cause
cancer, birth defects, or other reproductive harm.
WARNING: This generator may emit highly flammable and explosive gasoline vapors, which can cause
severe burns or even death if ignited. A nearby open flame can lead to explosion even if it isn’t directly in
contact with gasoline.
• Do not operate near open flame.
• Do not smoke near generator.
• Always operate on a firm, level surface.
• Always turn generator off before refueling. Allow generator to cool for at least 2 minutes before removing
fuel cap. Loosen cap slowly to relieve pressure in tank.
• Do not overfill fuel tank. Gasoline may expand during operation. Do not fill to the top of the tank. Allow
for expansion.
• Always check for spilled fuel before operating.
• Empty fuel tank before storing or transporting the generator.
WARNING: This generator produces powerful voltage, which can result in electrocution.
• ALWAYS ground the generator before using it (see the “Ground the Generator” portion of the
“GENERATOR PREPARATION” section).
• Generator should only be plugged into electrical devices, either directly or with an extension cord.
NEVER connect to a building electrical system without a qualified electrician. Such connections must
comply with local electrical laws and codes. Failure to comply can create a back-feed, which may result
in serious injury or death to utility workers.
• Use a ground fault circuit interrupter (GFCI) in highly conductive areas such as metal decking or steel
work. GFCIs are available in-line with some extension cords.
• Do not use in rainy conditions.
• Do not touch bare wires or receptacles (outlets).
• Do not allow children or non-qualified persons to operate.
5
GENERAL SAFETY PROCEDURES
WARNING: This generator produces heat when running. Temperatures near exhaust can exceed 1500
F (650 C).
Do not touch hot surfaces. Pay attention to warning labels on the generator identifying hot parts of the
machine.
Allow generator to cool down after use before touching engine or areas of the generator that become
hot during use.
CAUTION: Misuse of this generator can damage it or shorten its life.
Only use generator for its intended purposes.
Operate only on dry, level surfaces.
Allow generator to run for several minutes before connecting electrical devices.
Shut off and disconnect any malfunctioning devices from generator.
Do not exceed the wattage capacity of the generator by plugging in more electrical devices than the unit can
handle.
Do not turn on electrical devices until after they are connected to the generator.
Turn off all connected electrical devices before stopping the generator.
Turn the engine switch to “OFF” position when the engine is not running.
IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS – This manual contains important instructions for the WEN® 1800W generator that should be followed during installation and maintenance of the generator.
Generators vibrate in normal use. During and after the use of the generator, inspect both the generator as well as
extension and power supply cords for damage resulting from vibration. Have damaged items repaired or replaced
as necessary. Do not use plugs or cords that show signs of damage such as broken or cracked insulation.
For power outages, permanently installed stationary generators are better suited for providing backup power to the
home. Even a properly connected portable generator can become overloaded. This may result in overheating or
stressing of the components, possibly leading to a generator failure.
WARNING: If this generator is used as a supply for a building’s wiring system, the generator must be installed
by a qualified electrician and connected to a transfer switch as a separately derived system in accordance with
the National Electrical Code, NFPA 70. The generator shall be connected to a transfer switch that switches all
conductors excluding the equipment grounding conductor. The frame of the generator shall be connected to an
approved grounding electrode.
6
GENERATOR COMPONENTS
Use the illustrations below to become familiar with the locations and functions of the various components and
controls of this generator.
4
5
6
7
3
2
1
1
Frame
2
Fuel Tank Cap
3
Fuel Tank
4
Fuel Valve Assembly
5
Choke Lever
6
Air Cleaner
7
Recoil Starter
8
9
8
9
10
11
12
13
14
11
10
ON/OFF Switch
Oil Dipstick
Oil Drain Bolt
120V Duplex Receptacle
Circuit Breakers
12V Cigarette Lighter Style DC Receptacle
Grounding Terminal
12
13
14
7
GENERATOR PREPARATION
USING THE GENERATOR FOR THE FIRST TIME
The following section describes steps necessary to prepare the generator for use. If after reading this section, you are unsure about how to perform any of the steps please call (800) 232-1195 M-F 8-5 CST for
customer service. Failure to perform these steps properly can damage the generator or shorten its life.
Step 1 - ADD OIL
The generator is shipped without oil. User must add the proper amount of oil before operating the generator for
the first time. The oil capacity of the engine crankcase is 13.5 fl. oz. For general use (above 40° F), we recommend
30W, 4-stroke engine oil.
ENGINE OIL RECOMMENDATIONS
Select good quality detergent oil bearing the American Petroleum Institute (API) service classifications SJ, SL, or
SM (synthetic oils may be used). Use the ASE viscosity grade of oil from the following chart (Figure 1) that matches
the starting temperature anticipated before the next oil changes.
Figure 1 - Engine Oil Temperature Recommendations
To add oil, follow these steps:
1. Make sure the generator is on a level surface. Tilting the generator to assist in filling will cause oil to flow
into engine areas and will cause damage. Keep generator level!
2. Remove the dipstick from the engine. (Figure 2)
3. Add oil slowly as to not overflow the unit. (Figure 2).
4. To check the oil level, wipe the dipstick with a clean rag. Insert the dipstick into the oil fill opening
without screwing it in. Remove the dipstick to check the oil mark.
5. Slowly add more oil and repeat step 4 until the oil mark reaches to the top of the dipstick (Figure 2). Do
not overfill the crankcase. The generator is equipped with a low-oil sensor and will not start if the amount of
oil is insufficient.
6. Check for oil leaks. Tighten dipstick firmly.
Figure 2 - Oil Fill Opening,
Oil Dipstick
88
Dipstick and Oil Level
GENERATOR PREPARATION
Step 2 - ADD GASOLINE
WARNING: This generator may emit highly ammable and explosive gasoline vapors,
which can cause severe burns or even death if ignited. A nearby open ame can lead to
explosion even if not directly in contact with gasoline.
Use fresh (within 30 days from purchase), lead-free gasoline with a minimum of 87 octane rating. Do not mix oil
with gasoline.
To add gasoline, follow these steps:
1. Make sure the generator is on a level surface.
2. Unscrew fuel cap and set aside. NOTE: The fuel cap may be tight and hard to unscrew.
3. Slowly add unleaded gasoline to the fuel tank. Be careful not to overfill. The capacity of the fuel tank is
1.45 gallons. NOTE: Do not fill the fuel tank to the very top. Gasoline will expand and spill over during use
even with the fuel cap in place.
4. Reinstall fuel cap and wipe clean any spilled gasoline with a dry cloth.
IMPORTANT:
• Never use an oil/gasoline mixture.
• Never use old gasoline.
• Avoid getting dirt or water into the fuel tank.
• Gasoline can age in the tank and make starting difficult. Never store generator for extended periods of time
with fuel in the tank or the carburetor.
• Turn the fuel cock off and drain the fuel from the carburetor.
Step 3 - GROUND THE GENERATOR
WARNING: Failure to properly ground the generator
can result in electrocution.
Ground the generator by tightening the grounding nut on the
front control panel against a grounding wire (Figure 3). A generally acceptable grounding wire is a No. 12 AWG (American Wire
Gauge) stranded copper wire. This grounding wire should be
connected at the other end to a copper, brass, or steel-grounding
rod that is driven into the earth. Wire and grounding rods are not
included in generator contents.
Figure 3 - Grounding Nut
Grounding codes can vary by location. Contact a local electrician
to check the area codes.
NOTE: After completing the above preparation, the generator is ready to be started.
9
STARTING THE GENERATOR
Before starting the generator, make sure you have read and performed the steps in the “Generator Preperation”
section of this manual. If you are unsure about how to perform any of the steps in this manual please call (800)
232-1195 M-F 8-5 CST for customer service.
DANGER: CARBON MONOXIDE.
Using a generator indoors CAN KILL YOU IN MINUTES.
Generator exhaust contains carbon monoxide (CO). This is a poison gas you cannot see or smell. If you can
smell the generator exhaust, you are breathing CO. Even if you cannot smell the exhaust, you may be breathing CO.
NEVER use a generator inside homes, garages, crawlspaces, or other partly enclosed areas. Deadly levels of
carbon monoxide can build up in these areas. Using a fan or opening windows and doors does NOT supply
enough fresh air.
ONLY use a generator outside and far away from windows, doors, and vents. These openings can pull in
generator exhaust. Even if you use a generator correctly, CO may leak into the home. ALWAYS use a batterypowered or battery-backup CO alarm in the home.
If you start to feel sick, dizzy, or weak after the generator has been running, move to fresh air RIGHT AWAY.
See a doctor. You may have carbon monoxide poisoning.
WARNING: This generator produces powerful voltage, which can result in electrocution.
ALWAYS ground the generator before using it (see the “Ground the Generator” portion of the “Generator
Preperation” section).
- Generator should only be plugged into electrical devices, either directly or with an extension cord. NEVER
connect to a building electrical system without a qualified electrician. Such connections must comply with local
electrical laws and codes. Failure to comply can create a back-feed, which may result in serious injury or death
to utility workers.
- Use a ground fault circuit interrupter (GFCI) in highly conductive areas such as metal decking or steel work.
GFCIs are available in-line with some extension cords.
- Do not use in rainy or wet conditions.
- Do not touch bare wires or receptacles (outlets).
- Do not allow children or non-qualified persons to operate.
CAUTION: Disconnect all electrical loads from the generator before attempting to start.
10
STARTING THE GENERATOR
STARTING THE ENGINE
To start the generator, perform the following steps:
1. Unplug all electrical devices from the generator during ignition. Otherwise it will be difficult for the engine to
start.
2. Check that the generator is properly grounded (Refer to “GROUND THE GENERATOR”).
3. Check the oil and fuel levels.
4. Turn the fuel valve to the “ON” position (See Figure 4).
5. Move the choke lever to the “CLOSE” position (See Figure 5).
6. Set the ON/OFF Switch to the “ON” position.
7. Pull on the recoil starter handle slowly until a slight resistance is felt, then pull quickly to start the engine.
Return cord gently into the recoil starter. Never allow the cord to snap back.
8. If engine fails to start, repeat step 7. NOTE: After repeated failed attempts to start the engine, please consult
the troubleshooting guide before attempting again. If problems persist please call (800) 232-1195 M-F 8-5 CST.
9. Once the engine has started, slowly return the choke lever all the way to the “OPEN” position.
10. Allow the engine to run for several minutes before attempting to connect any electrical devices. This allows
the generator to stabilize its speed and temperature.
Allow the generator to run for several minutes before attempting to connect any electrical devices. This allows
the generator to stabilize its speed and temperature.
Figure 4 - Fuel Valve Figure 5 Choke Lever
11
STOPPING THE GENERATOR
TO STOP THE GENERATOR
1. Turn off all electrical devices prior to unplugging them from the generator. Unplugging running devices can
cause damage to the generator.
2. Turn the “ON/OFF” switch to the “OFF” position.
3. Turn the fuel valve to the “OFF” (horizontal) position.
WARNING: Allow the generator to cool for several minutes before touching areas that become hot during use.
CAUTION: Allowing gasoline to sit in the fuel tank for long periods of time can make it difficult to start
the generator in the future. Never store the generator for extended periods of time with fuel in the fuel
tank. Refer to Generator Storage Section.
SUBSEQUENT STARTING OF THE GENERATOR
If this is not the first time using the generator, the user should take the following steps to prepare it for operation.
IMPORTANT: At this point the user should be familiar with the procedures described in
the sections titled “Starting the Generator” and “Generator Preperation.” If the user
has not yet read these sections, go back and read them now.
Step 1 - CHECK THE OIL
Oil consumption is normal during generator use. The generator is equipped with a low oil level shutoff to protect
it from damage. The oil level of the engine should be checked before each use to ensure that the engine crankcase
contains sufficient lubricant.
To check or add oil, follow these steps:
1. Make sure the generator is on a level surface. Clean around oil fill.
2. Remove the oil filler/dipstick cap and check the oil level.
3. If oil level is below the second thread from the lip of the oil fill opening, slowly add oil until the engine
crankcase is filled.
4. Reinstall and tighten oil cap before starting the engine.
Step 2 - CHECK THE FUEL LEVEL
Before starting the generator, check to see that there is sufficient gasoline in the fuel tank. Add additional gasoline
as necessary but leave sufficient room in the tank for expansion.
12
SUBSEQUENT STARTING OF THE GENERATOR
WARNING: This generator may emit highly flammable and explosive gasoline vapors, which can cause
severe burns or even death if ignited. A nearby open flame can lead to an explosion even if it is not
directly in contact with fuel.
• Do not operate near open flames.
• Do not smoke near the generator.
• Always operate on a firm, level surface.
• Always turn the generator off before refueling. Allow generator to cool for at least 2 minutes before removing the fuel cap. Loosen cap slowly to relieve pressure in tank.
• Do not overfill fuel tank. Gasoline may expand during operation. Do not fill to the top of the tank. Allow
for expansion.
• Always check for spilled fuel before operating. Clean up any spilled fuel before starting.
• Empty the fuel tank before storing or transporting the generator.
• Before transporting, turn fuel valve to off position.
IMPORTANT:
• Use only UNLEADED gasoline.
• Do not use old gasoline.
• Never use an oil/gasoline mixture.
• Avoid getting dirt or water into the fuel tank.
Step 3 - GROUND THE GENERATOR
WARNING: Failure to properly ground the generator can result in electrocution.
Ground the generator by tightening the grounding nut on the front control panel against a grounding wire (Figure
3). A generally acceptable grounding wire is a No. 12 AWG (American Wire Gauge) stranded copper wire. This
grounding wire should be connected at the other end to a copper, brass, or steel-grounding rod that is driven into
the earth. Wire and grounding rod are not included in generator contents.
Grounding codes can vary by location. Contact a local electrician for area codes.
13
USING THE GENERATOR
WARNING: When this generator is used on a building’s wiring system, the generator must be installed by a qualified electrician and connected to a transfer switch as a separately derived system in accordance with the National
Electrical Code, NFPA 70. The generator shall be connected to a transfer switch that switches all conductors
other than the equipment grounding conductor. The frame of the generator shall be connected to an approved
grounding electrode.
For power outages, permanently installed stationary generators are better suited for providing backup power to the
home. Even a properly connected portable generator can become overloaded. This may result in overheating or
stressing the machine’s components, possibly leading to a generator failure.
Before connecting electrical devices, allow the generator to run for a few minutes to stabilize the speed and voltage
output.
CAUTION: Become familiar with the markings on the panel before connecting electrical devices.
AC USAGE
Connect electrical devices running on AC current according to their wattage requirements. The chart in Figure 6
shows the rated and surge wattage of the generator.
The rated (running) wattage is the wattage the generator can produce on a continuous basis.
The surge wattage is the maximum amount of power the generator can produce for an extremely short period of
time (seconds). Many electrical devices such as refrigerators require short bursts of extra power in addition to the
rated wattage listed by the device to start their motors. The surge wattage ability of the generator covers this extra
power requirement.
Item Rated (Running) Wattage Surge Wattage
56180 1500 1800
Figure 6 - Generator Wattage
The total running wattage requirement of the electrical devices connected to the generator should not exceed the
rated wattage of the generator itself. To calculate the total wattage requirement of the electrical devices you plan
to connect, find the rated (or running) wattage of each device. This number should be listed somewhere on the
device or in its instruction manual. If this wattage cannot be found, calculate it by multiplying the Voltage requirement by the Amperage drawn:
Watts = Volts x Amperes
If these specifications are not available, estimate the watts requirement of the device by using the chart in Figure 7.
When the rated wattage requirement of each electrical device has been determined, add these numbers to find
the total rated wattage needed. If this number exceeds the rated wattage of the generator, DO NOT connect all
these devices. Select a combination of electrical devices, which have a total rated wattage lower than or equal to
the rated wattage of the generator.
14
USING THE GENERATOR
CAUTION: The generator can run at its surge wattage capacity for only a short time. Connect electrical devices
requiring a rated (running) wattage equal to or less than the rated wattage of the generator. Never connect devices
requiring a rated wattage equal to the surge wattage of the generator. This can trip the circuit protectors (circuit
breakers).
Tool or Appliance Rated (Running) Watts ADDITIONAL SURGE WATTS
Electric water heater (40 Gal) 4000 0
Hot plate 2500 0
Saw - radial arm 2000 2000
Electric stove (each element) 1500-2800 0
Saw - circular 1500 1500
Air compressor (1 HP) 1500 3000
Window air conditioner 1200 1800
Saw - miter 1200 1200
Microwave 1000 0
Well water pump 1000 1000
Saw - reciprocating 960 1040
Sump pump 800 1200
Refrigerator freezer 800 1200
Furnace blower 800 1300
Computer 800 0
Electric drill 600 900
Television 500 0
Deep freezer 500 500
Garage door opener 480 0
Stereo 400 0
Box fan 300 600
Clock radio 300 0
Security system 180 0
DVD player / VCR 100 0
Common light bulb 75 0
Figure 7- Estimated wattage requirements of common electrical devices
Note: The above wattage figures are estimates. Check the wattage listed on the electrical device before consulting
this chart. Once the electrical devices that will be powered by the generator have been determined, connect these
devices according to the following procedure:
1. Plug in each electrical device, making sure that the device is turned off.
2. Check the overload light and power indicator light. If the overload light is on, remove the plugged in load, then
press the power reset button before plugging the loads back in. If the reset button does not reset, wait several minutes and try again. If the power light still does not come on, call the customer service number for further instructions.
CAUTION: Do not connect 50Hz loads to the generator.
15
USING THE GENERATOR
SOME NOTES ABOUT POWER CORDS
Long or thin cords can drain the power provided to an electrical device by the generator. When using such cords,
allow for a slightly higher rated wattage requirement by the electrical device. See Figure 8 for recommended
cords based on the power requirement of the electrical device.
Device Requirements
Amps Watts (120V) #8 wire #10 wire #12 wire #14 wire #16 wire
2.5 300 NR NR NR 375 250
5 600 NR NR 300 200 125
7.5 900 NR 350 200 125 100
10 1200 NR 250 150 100 50
15 1800 NR 150 100 65 NR
*NR = Not Recommended Figure 8 - Maximum Extension Cord Lengths by Power Requirement
If an overload occurs, shut down the generator. Unplug all electrical devices and wait five minutes. Then, start the
unit back up again to get power back.
DC USAGE
This Generator is equipped with a 12V DC receptacle. The maximum draw for this DC outlet is 8.3 Amps. The
12V DC receptacle is not intended for use to charge automotive batteries.
Max. Cord Length (ft) by Wire Gauge
MAINTENANCE/CARE
Proper routine maintenance of the generator will help prolong the life of the machine. Please perform maintenance checks and operations according to the schedule in Figure 9.
If there are any questions about the maintenance procedures listed in this manual, please call (800) 232-1195 M-F
8-5CST.
CAUTION: Never perform maintenance operations while the generator is running.
Recommended
Maintenance Schedule
Engine oil Check
level
Replace x x* x* x
Air
cleaner
cartridge
Spark plug Check/
Fuel tank Check
* Clean/change more often under dusty conditions or operating under heavy load.
Check x x
Clean x
clean
Change x x
level
Clean x
Each 8
hours or
daily
x
x
Figure 9 - Recommended maintenance schedule
First 8
hours
Every 25
hours
Every 3
months or
50 hours
Every 6
months or
100 hours
x
Every
year
As
necessary
16
MAINTENANCE & CARE
CLEANING THE GENERATOR
Never clean the generator when it is running! Never clean with a bucket of water or a hose. Water can get inside
the working parts of the generator and cause a short circuit or corrosion.
Always try to use the generator in a cool, dry place. If the generator becomes dirty, clean the exterior with a damp
cloth, a soft brush, a vacuum or pressurized air.
CHECKING THE OIL
Check the oil level of the generator according to the Recommended Maintenance Schedule in Figure 9. The
generator is equipped with an automatic shutoff to protect it from running on low oil. The generator should be
checked before each use for proper oil level. This is a critical step for proper engine starting. To check the oil
level:
1. Make sure the generator is on a level surface.
2. Clean around oil fill. Remove dipstick and wipe the dipstick with a clean
rag. Insert the dipstick into the oil fill opening without screwing in. Remove
the dipstick to check the oil mark. Add oil if the oil mark covers less than one
half of the dipstick.
3. Slowly add more oil and repeat step 2 until the oil mark reaches to the top
of dipstick (Figure 10). Do not over fill the crankcase.
4. Reinstall oil dipstick.
Figure 10 - Oil Fill Opening,
Dipstick and Oil Level
CHANGING/ADDING OIL
Change the oil according to the Recommended Maintenance Schedule in Figure 9. Change the oil when the engine is warm. This will allow for complete drainage. Change oil more often if operating under heavy load or high
ambient temperatures. It is also necessary to drain the oil from the crankcase if it has become contaminated with
water or dirt. The oil capacity of the generator engine is 13.5 fl.oz. Add oil when the oil level is low. For proper
type and weight of oil refer to “add oil” portion of the “Generator Preparation” section.
To drain oil, follow these steps:
1. Place a container underneath the engine to catch oil as it drains.
2. Using a 10 mm hex wrench, unscrew the oil drain plug. Allow all the oil to
drain from the engine.
3. Reinstall the oil drain plug and tighten with a 10 mm hex wrench.
Drain Plug
17
MAINTENANCE & CARE
To rell the crankcase with oil, follow these steps:
1. Make sure the generator is on a level surface. Tilting the generator to assist in filling will cause oil to flow into
engine areas and will cause damage. Keep generator level!
2. Remove the dipstick from the engine.
3. Using a funnel or appropriate dispenser, add the correct amount of oil (13.5 fl.oz) into the crankcase. The
engine is equipped with a low oil sensor and will not start if the amount of oil is insufficient.
4. Reinstall dipstick.
NOTE: Never dispose of used motor oil in the trash or down a drain. Please call a local recycling center or auto
garage to arrange oil disposal.
AIR CLEANER MAINTENANCE
Routine maintenance of the air cleaner helps maintain proper airflow to the carburetor. Occasionally check
that the air cleaner is free of excessive dirt. Refer to Recommended Maintenance Schedule in Figure 9. For air
cleaner detail, refer to Figure 11.
1. Unscrew the cover bolt, then remove the air cleaner cover.
2. Remove the air cleaner element from the casing.
3. Check and clean the air cleaner element, replace with a new one if the element is damaged. Good element can
be washed in soapy water, dried and reused. There is no need to add oil to the element.
4. Wipe off excessive oil from the air cleaner case. Small amount of oil in the element is normal and necessary for
the engine to work properly.
5. Reinstall the air cleaner element and cover.
CAUTION: running the engine with dirty, damaged or missing air cleaner element will cause the engine to wear
out prematurely.
Cover Bolt
18
Figure 11 - Air Cleaner
MAINTENANCE & CARE
FUEL FILTER CUP CLEANING
The fuel filter cup is a small well underneath the fuel valve. It
helps to trap dirt and water that may be in the fuel tank before
it can enter the engine. To clean the fuel filter cup:
1. Turn the fuel valve to the “OFF” position.
2. Unscrew the fuel filter cup from the fuel valve using a
wrench. Turn the valve toward you and unsrew (See Figure
12).
3. Clean the cup of all sediments using a rag or brush.
4. Reinstall the fuel filter cup.
SPARK PLUG MAINTENANCE
Spark plug: NGK BP6HS
The spark plug is important for proper engine operation. A good spark plug should be intact, free of deposits,
and properly gapped. Refer to Recommended Maintenance Schedule in Figure 9. To inspect the spark plug:
1. Remove spark plug boot. Be careful not to tear insulation or wire.
2. Unscrew the spark plug from the engine using the spark plug wrench provided. There is limited space for the
wrench to turn. Use both rows of holes in the spark plug wrench to gain leverage to loosen the plug.
3. Visually inspect the spark plug for cracks or excessive electrode wear. Replace as necessary.
4. Measure the plug gap with a wire gauge. The gap should be 0.7 to 0.8 mm (0.028-0.031 in).
5. If re-using the spark plug, use a wire brush to clean any dirt from around the spark plug base then re-gap the
spark plug.
Figure 12 Removing the Fuel Filter Cup
6. Screw the spark plug back into the spark plug hole using the spark plug wrench. Do not over-tighten spark
plug. Recommended tightening of spark plug is ½ to ¾ of a turn after spark plug gasket contacts spark plug hole.
Reinstall the spark plug boot.
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MAINTENANCE & CARE
DRAINING THE FUEL TANK
Clean fuel tank each year or before storing the generator for extended periods of time. To drain the fuel tank and
carburetor:
1. Turn the fuel valve to the “OFF” position.
2. Remove the fuel line between the fuel valve and carburetor. Caution: A small amount of fuel may leak from the
hose during removal.
3. Attach a fuel line (not included with the generator) to the exposed end of the fuel valve.
4. Position fuel line into an appropriate container and open the fuel valve allowing fuel to flow into the container.
5. Once fuel is drained, shut off the fuel valve.
6. Start and run the engine until fuel runs out.
7. Remove the fuel filter cup (See “FUEL FILTER CUP CLEANING”).
8. Empty the fuel filter cup of any fuel and clean.
9. Reinstall the fuel filter cup.
10. Store the emptied gasoline in a suitable place.
CAUTION: Do not store fuel for more than 3 months.
STORAGE & TRANSPORT PROCEDURES
CAUTION: Never place any type of storage cover on the generator while it is still hot.
If the generator is being stored for short periods of time (30 to 60 days), add stabilized fuel to the fuel tank until
full. NOTE: Filling the tank reduces the amount of air in the tank and helps reduce deterioration of fuel. Run
the engine for 2 – 3 minutes allowing stabilized fuel mixture to circulate through the carburetor.
When storing the generator for extended periods of time:
• Drain the fuel tank (see “Draining the Fuel Tank” in the “Maintenance” section).
• Change oil.
• Do not obstruct any ventilation openings.
• Keep the generator in a cool dry area.
When transporting generator:
• Tighten fuel cap and vacuum relief valve. Drain the fuel tank if possible (see “Draining the Fuel Tank” in
the “Maintenance” section).
• Keep the generator upright. Never place the generator side down. Doing so will make it difficult to start.
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SPECIFICATIONS
Rated Voltage 12 VDC
Rated Amperage 8.3 A
Rated Wattage 100 W
Rated Wattage 1500 Watts
Surge Wattage 1800 Watts
Rated Voltage 120 V
Rated Amperage 12.5 A
Frequency 60 Hz
Phase Single
Length: 19.90 inches
Dimensions
Weight 51 lbs
Width: 15.90 inches
Height: 17.10 inches
DC output
AC output
Engine
Engine type 4 stroke, OHV, single cylinder with forced air cooling system
Spark plug gap 0.7 - o.8 mm (0.028 - 0.031 in)
Spark plug torque 1/2 - 3/4 turn after gasket contacts base or 15 ft.lb
Displacement 98 cc
Fuel tank capacity 1.45 gallon 87 octane minimum
Oil capacity 13.50 fl.oz
Lubrication system Splash lubrication
Run time on 50% load 7.5 hours
Noise rating 63 dB at 22 feet
Spark plug NGK BP6HS
21
TROUBLESHOOTING
Problem Cause Solution
Engine switch is set to
Fuel valve is turned to
Choke is open. Close the choke.
Engine is out of gas. Add gas.
Spark plug is dirty. Clean spark plug.
Spark plug is broken. Replace spark plug.
Move generator to a level surface
Oil is low Add or replace oil.
Wait for 2 minutes and push the
Bad connecting
If you are using an extension cord,
Perform these steps:
1. Turn off all electrical devices.
2. Unplug all electrical devices.
3. Turn off generator.
4. Wait several minutes.
5. Restart generator.
6. Try connecting fewer electrical
Short in one of the
Try disconnecting any faulty or
Air cleaner is dirty. Clean or replace air cleaner.
DC No Power
Twist and push power cord plug
Contact our customer service help
connected.
Generator is overloaded
IMPORTANT: If trouble persists, please call our customer help line at (800) 232-1195 M-F 8-5 Central Time.
Engine will not start
Engine runs but there
is no electrical output
"OFF". Set engine switch to "ON".
"OFF". Turn fuel valve to "ON" position.
Engine is filled with
contaminated or old gas Change the gas in the tank.
Generator is not on
level surface.
Circuit reset button is
off.
wires/cables.
Bad electrical device
connected to generator. Try connecting a different device.
to prevent low oil shutdown from
triggering.
circuit reset button to the "ON"
position.
try a different one.
Generator runs but
does not support all
electrical devices
connected devices.
Power cord plug not
securely in place
Protective fuse is blown
22
loads to the generator.
short-circuited electrical loads.
into receptacle until contact is
made with bottom of receptacle.
line at (800) 232-1195.
EXPLODED VIEW AND PARTS LIST
23
EXPLODED VIEW AND PARTS LIST
Item # Stock # Description
Item # Stock # Description
12V Cigarette Lighter
1 56180-001 Fuel Cap
2 56180-002 Fuel Filter
3 56180-003 Fuel Tank
4 56180-004 Fuel Cock
5 56180-005 Frame
6 56180-006 Resilient Mount
7 56180-007 Rubber Foot
8 56180-008 Rubber Spacer
9 56180-009 Front Case
9.1 56180-009.1 Bolt M8x20
10 56180-010 Bearing 6202
11 56180-011 Bolt M8x168
12 56180-012 Motor Housing
13 56180-013 End Cover
13.1 56180-013.1 Bolt M6x12
14 56180-014 Alternator Assembly
15 56180-015 Stator
15.1 56180-015.1 Rotor
16 56180-016 Panel Rear Cover
17 56180-017 Rectifer
18 56180-018 Capacitor
19 56180-019 Control Panel
20 56180-020 AC Circuit Protector
21 56180-021 DC Circuit Protector
22 56180-022 Duplex Receptacle
23 56180-023 Bracket
24 56180-024
25 56180-025 Engine Switch
26 56180-026 Fuel Hose
26.1 56180-026.1 Fuel Hose Clamp
26.2 56180-026.2 Catalyst
26.3 56180-026.3 Hose
26.4 56180-026.4 Hose
27 56180-027 One Way Valve
28 56180-028 Bolt
29 56180-029 Nut
30 56180-030 Bolt
31 56180-031 Washer
32 56180-032 Nut
33 56180-033 Muffler Assembly
33.1 56180-033.1 Spark Arrestor
33.2 56180.033.2 Muffler Bracket
34 56180-034 Fuel Hose
35 56180-035 Fuel Tank Support
36 56180-036 Blot
37 56180-037 Engine Assembly
38 56180-038 Grounding Terminal
39 56180-039 Bolt M6x96
Style DC Receptacle
24
EXPLODED VIEW AND PARTS LIST
25
EXPLODED VIEW AND PARTS LIST
Item # Stock # description
Item # Stock # description
40 56180-040 Ignition Coil Assembly
41 56180-041 Head Cover Gasket
42 56180-042 Cylinder Head Cover
43 56180-043 Intake Valve
44.1 56180-044.1 Push Rod Guide Plate
44.2 56180-044.2 Rocking Arm Stud
44.3 56180-044.3 Rocking Arm
44.4 56180-044.4 Adjust Nut
44.5 56180-044.5 Lock Nut
45 56180-045 Exhaust Valve
46 56180-046 Valve Spring
47 56180-047 Valve Spring Retainer
48 56180-048 Fan
49 56180-049 Flywheel
50 56180-050 Crankshaft
51 56180-051 Connecting Rod Assembly
52 56180-052 Piston Assembly
53 56180-053 Cylinder Head Assembly
54 56180-054 Cylinder Head
55 56180-055 Crankcase
56 56180-056 Spark Plug
57 56180-057 Recoil Starter
58 56180-058 Fan Cover
59 56180-059 Flange Nut M12x1.25
60 56180-060 Starting Cup
61 56180-061 Drain Bolt
62 56180-062 Washer
63 56180-063 Camshaft Assembly
64 56180-064 Bearing
65 56180-065 Valve Lifter
66 56180-066 Push Rod
67 56180-067 Crankcase Gasket
68 56180-068 Crankcase Cover
69 56180-069 Dipstick
70 56180-070 Oil Seal
71.0 56180-071.0 Air Cleaner Assembly
71 56180-071 Screw
72 56180-072 Air Cleaner Housing
73 56180-073 Foam Element
74 56180-074 Support Pack
75 56180-075 Air Cleaner Cover
76 56180-076 Hose
77 56180-077 Regulator gear assembly
79 56180-079 Carburetor
80 56180-080 Carburetor Spring
81 56180-081 Link Rod
82 56180-082 Governor Spring
83 56180-083 Governor Arm
84 56180-084 Intake Insulator
85 56180-085 Intake Valve Gasket
86 56180-086 Governor Bracket
87 56180-087 Piston Ring I
88 56180-088 Piston Ring II
89 56180-089 Piston Ring III
90 56180-090 Piston Axes
91 56180-091 Piston Axes Ring
92 56180-092 Bearing
93 56180-093 Oil Alert Assembly
94 56180-094 Gulp Valve System
95 56180-095 Gulp Valve Gasket
96 56180-096 Gulp Valve Connection Plate
97 56180-097 Bolt M6×16
26
WIRING DIAGRAM
27
WARRANTY STATEMENT
Remember to save the receipt and to accurately fill out and mail the product registration card. Proof of purchase
is required for all warranty work.
WEN® generators are under warranty to be free from defects in materials and workmanship for a period of two
(2) years from date of original purchase. Generators used for Commercial or Rental use have a warranty period of
90 days from date of original purchase. Keep purchase receipt and mail in the product registration card for proof
of purchase.
WEN® will repair or replace, at its discretion, any part that is proven to be defective in materials or workmanship under normal use during the two (2) years warranty period. Warranty repairs or replacements will be made
without charge for parts or labor. Parts replaced during warranty repairs will be considered as part of the original
product and will have the same warranty period as the original product.
To exercise the warranty, DO NOT RETURN TO RETAILER. Instead, call the toll free Customer Service
number at (800) 232-1195 and you will be instructed on where to take the generator for warranty service. Take the
generator and proof of purchase (the receipt) to the repair facility recommended by the Customer Service Representative.
All transportation costs under warranty, including return to the factory if necessary, are to be borne by the purchaser and prepaid by the purchaser. The term “purchaser” means the person for whom the generator is originally purchased. This warranty is non-transferable.
The warranty does not extend to generators damaged or affected by fuel contamination, accidents, neglect, misuse, unauthorized alterations, use in an application for which the product was not designed and any other modifications or abuse.
WEN® is not liable for any indirect, incidental or consequential damages from the sale or use of this product.
Any implied warranties are limited to two (2) years as stated in this written limited warranty. Some states do not allow the exclusion or limitation of incidental or consequential damages. Some states do not allow limitation on the
length of an implied warranty. This warranty gives you specific legal rights, and you may have other rights that vary
from state to state.
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