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 its 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
NOTICE: Please refer to wenproducts.com for the most up-to-date instruction manual.
Fuel Tank Capacity6.6 US gallons (25 L), 87 octane minimum
Oil Capacity37.2 fl. oz. (1.1 L)
Gasoline: 8.5 hours
Half-Load Run Time
LPG (with 20 lb tank): 3 hours
Product Dimensions27.3 x 20.6 x 21.9 in. (L x W x H)
Product Net Weight213.8 lbs (97 kg)
Your generator is compatible with the WEN 55201 Magnetic Oil Dipstick,
2
available at wenproducts.com
INTRODUCTION
THANKS FOR PURCHASING THE WEN GENERATOR!
Refer to the illustration below for the location of the serial number. Record the generator information in the
spaces provided below. If assistance for information or service is required, please contact the Customer
Service Help Line by calling 800-232-1195, M-F 8-5 CST; you will be asked to provide the following generator information when calling.
GENERATOR MODEL NUMBER: WEN DF1100, WEN DF1100T
DATE OF PURCHASE: __________________________________________
SERIAL NUMBER: _____________________________________________
SERVICE RECORD
Record the service dates of your generator in the chart below. Please perform maintenance checks and
operations according to the “MAINTENANCE” section of the manual.
Service RecordDateDateDateDateDateDate
Change Oil
Change Spark Plug
Clean Air Cleaner
Clean Spark Arrestor
Clean Fuel Tank
TO MAXIMIZE THE LIFESPAN OF YOUR GENERATOR:
We recommend running your generator at least ONCE A MONTH for 20 to 30 minutes. Start the generator according to the instructions and plug a small load in to make sure the outlet is producing electricity.
SERIAL NUMBER
3
SAFETY INFORMATION
WARNING: Before operating the generator, make sure to read all safety warnings and all instruc-
tions. Failure to follow the warnings and instructions may result in electric shock, fire or serious injury.
SAFETY INTRODUCTION
Safety is a combination of common sense, staying alert, and knowing how your tool works. This manual
contains important information regarding the generator’s potential safety concerns, as well as preparation,
operation, and maintenance instructions. Before operating this generator, be sure to read and observe all
warnings and instructions both on the generator labels and in this instruction manual. Failure to follow all
instructions listed below may result in personal injury.
NOTE: The following safety information is not meant to cover all possible conditions and situations that may
occur. WEN reserves the right to change this product and specifications at any time without prior notice.
SAVE THESE INSTRUCTIONS - Please keep this manual available to all users during the entire life of
the tool. Review it frequently to maximize safety for both yourself and others.
SAFETY SYMBOLS
The purpose of following safety symbols is to attract your attention to possible dangers. The safety symbols, and their explanations, deserve your careful attention and understanding. The safety warnings do not
by themselves eliminate any danger. The instructions or warnings they give are not substitutes for proper
accident prevention measures.
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 machine.
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).
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 or email techsupport@wenproducts.com.
4
GENERATOR SAFETY WARNINGS
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, crawl spaces, or other partially 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
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: RISK OF EXPLOSION. HIGHLY FLAMMABLE: This generator may emit highly flam-
mable and explosive gasoline vapors, which can cause severe burns or even death, if ignited. A nearby
open flame can lead to explosion even if not 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.
• Before transporting, turn fuel valve to OFF and disconnect spark plug wire.
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 all applicable laws and electrical codes and 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.
California Proposition 65 WARNING: This product contains chemicals and produces exhaust
known to the State of California to cause cancer, birth defects and other reproductive harm.
5
GENERATOR SAFETY WARNINGS
WARNING: Do not let comfort or familiarity with the product replace strict adherence to product
safety rules. Failure to follow the safety instructions may result in serious personal injury.
OPERATING ENVIRONMENT
1. Using a generator indoors can KILL YOU IN MINUTES. Only use a generator outside and far away from windows, doors and vents.
2. Do not operate near open flame or flammable materials. 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 isn’t directly in contact with gasoline.
3. Do not smoke near the generator.
4. Do not use the generator in rainy or wet conditions; doing so significantly increases the risk of electrical
shock.
5. Always operate the generator on a dry, firm, level surface.
6. Do not allow children or non-qualified persons to operate the generator.
7. Do not use or store LPG cylinder in a building, garage or enclosed area. Failure to do so will result in death
or serious injury. Liquid Petroleum Gas (LPG) is highly flammable and explosive. Flammable gas under pressure can cause a fire or explosion if ignited. Always keep the LPG cylinder in an upright position. The LPG
cylinder valve should be turned OFF (closed) when generator is not in use; failure to do so could result in death
or serious injury.
GENERATOR PREPARATION
1. Always ground the generator before using it to maximize safety (see “GROUND THE GENERATOR” section
on page 18).
2. Always make sure generator is turned OFF before filling the fuel tank. Do not overfill fuel tank, as gasoline may expand during operation. Do not fill to the very top of the tank. Leave room for gasoline expansion.
Always check for spilled fuel before operating.
3. Do not use receptacles or cords that show signs of damage, such as broken or cracked insulation. If
any part of the generator or electrical device is broken, damaged, or defective, make sure it is repaired or
replaced before operation. Service should only be performed by a qualified technician.
4. Use a ground fault circuit interrupter (GFCI) in highly conductive areas such as metal decking or steel
work. Extension cords with in-line GFCIs are recommended for these operations to maximize safety.
5. NEVER connect the generator to a building’s electrical system without consulting a qualified electrician.
Such connections must comply with local electrical laws and codes. Failure to comply can create a backfeed, which may result in serious injury or death to utility workers.
6
GENERATOR SAFETY WARNINGS
GENERATOR OPERATION
1. Only use the generator for its intended purposes. Modifying or using the generator for operations for
which it was not designed may cause hazards and personal injury.
2. Do not touch bare wires or receptacles (outlets).
3. Do not exceed the wattage capacity of the generator by plugging in more electrical devices than the unit
can handle.
4. Allow generator to run for several minutes before connecting electrical devices.
5. Do not exceed the wattage capacity of the generator by plugging in more electrical devices than the unit
can handle (see “OPERATION” section).
6. Do not turn on electrical devices until after they are connected to the generator.
7. 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.
8. Do not touch HOT PARTS. This generator produces heat when running. Temperatures near exhaust can
exceed 150º F (65º C). Allow generator to cool down after use before touching engine or areas of the generator that become hot during use.
9. Turn off all connected electrical devices before stopping the generator.
10. 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.
11. Turn the engine switch to “OFF” position when the engine is not running.
12. Empty fuel tank before storing or transporting the generator. Do not store generator or gasoline near
furnaces, water heaters, or any other appliances that produce heat or have automatic ignitions. Store the
generator and fuel away from sparks, open flames, pilot lights, heat and other sources of ignition.
CAUTION: Misuse of this generator can damage it or shorten its lifespan.
TO MAXIMIZE THE LIFESPAN OF YOUR GENERATOR:
We recommend running your generator at least once a month for 20 to 30 minutes. Start the generator
according to the instructions and plug a small load in to make sure the outlet is producing electricity.
If you do not run it often, it will greatly shorten the generator’s lifespan and void the warranty.
7
KNOW YOUR GENERATOR
Use the illustration below to become familiar with all the components and controls of this generator. If any
part is damaged or missing, please contact our customer service at (800) 232-1195, M-F 8-5 CST or email
us at techsupport@wenproducts.com.
1
2
3
10
11
4
5
6
7
8
9
1. Gasoline Fuel Cap
Access to the fuel tank for adding gasoline
2. Fuel Gauge
Indicates amount of fuel inside the fuel tank
E indicates Empty, F indicates Full
3. Pressure Relief Valve
4. Choke Lever
Adjusts the amount of air let into the engine
during startup
5. Fuel Valve
Allows fuel to enter engine from the fuel tank
6. Air Filter
A case with a sponge-like element that filters
the air entering the engine
7. Recoil Starter
Pull cord for manually starting the engine
12
13
14
8. 457cc OHV Engine
9. Transportation Handles
For easy transport of the generator
(installed by user)
10. Fuel Tank
11. Control Panel
Refer to the next page for descriptions
12. Battery
Connect the battery before starting the generator
13. Oil Fill and Dipstick
For filling and checking oil
14. LPG Hose Connector
Connects to LPG hose and LPG cylinder
8
KNOW YOUR GENERATOR
KNOW YOUR CONTROL PANEL
1234
1. Fuel Selector Dial
Turn the dial to select between gasoline
or LPG before operation
6
5
7. AC 20A Circuit Breakers (for 5-20R)
Thermal protector that protects the 5-20
receptacles from overload
7
8
9
7
1210
2. Electric Start Switch
Turn the starter key to start, run and stop the
engine
5. DC Circuit Breaker
Thermal protector that protects the DC circuit
from overload
6. NEMA 5-20R GFCI Duplex Receptacle
Connect electrical devices that run on 120V,
60 Hz, single phase, AC current
8. AC 30A Circuit Breaker (for L5-30R)
Thermal protector that protects the L5-30
receptacle from overload
9. NEMA L5-30R 120V 30A Twistlock Receptacle
Connect electrical devices that run on 120V, 60 Hz,
single phase, AC current
10. NEMA L14-50R 120V/240V 50A Receptacle
Connect electrical devices that run on 120V/240V,
60 Hz, single phase, AC current
11. 35A Main Circuit Breakers
Thermal protectors that protect the generator’s
main circuit from overload
12. Grounding Nut
Connect grounding wire here to properly ground
the generator
9
UNPACKING & ASSEMBLY
UNPACKING THE GENERATOR AND ACCESSORIES
Open the packaging and take out all loose parts from the box. With the help of a good friend or trustworthy
foe, carefully lift the generator from the packaging and place it on a sturdy, level surface.
Make sure all the accessories are accounted for and fully assemble the generator before discarding the packaging. If any part is missing or broken, please contact our customer service at (800) 232-1195, M-F 8-5 CST
or email us at techsupport@wenproducts.com.
IMPORTANT: Two red shipping brackets have been added
to the bottom of your generator to protect the generator
during shipping. Please make sure to remove BOTH shipping brackets before operation.
IMPORTANT:The LPG hose is packed underneath the fuel
tank, sitting above the engine. Remove to hose and set it
aside before assembling or operating the generator.
PACKING LIST
No.AccessoryQty.
43Foot Support Assembly2
44Foot Support Isolator2
32M6X25 Bolt2
45M6 Nut2
64M8 Nut4
48Wheel Axle2
42Wheel2
16Flat Washer2
25Cotter Pin2
19Handle2
73Handle Isolator2
30Handle Plug2
67Handle Bushing4
31M8X45 Bolt2
77M8 Lock Nut2
N/ASpark Plug Wrench1
N/AFirst Stage Regulator1
N/AOil Bottle1
10
UNPACKING & ASSEMBLY
TO INSTALL THE FEET:
1. Insert the M6X25 bolt (32) through the foot support isolator (44) and foot support assembly (43). Tighten
with an M6 nut (45).
2. Install the foot support assembly (43) onto the frame and tighten with M8 nuts (64).
3. Repeat for the other foot.
TO INSTALL THE WHEELS:
1. Slide the wheel axle (48) through the wheel (42), flat washer (16), and wheel bracket on the frame.
2. Insert cotter pin (25) through the hole on the end of the axle to keep the wheel in place.
3. Repeat for the other wheel.
TO INSTALL THE HANDLE ASSEMBLIES:
1. Slide the M8X45 bolt (31) through the handle (19), handle bushing (67), generator frame, and the other
handle bushing (67).
2. Tighten with M8 lock nut (77).
3. Repeat for both handles.
NOTE: Only the generator frame is shown
to maximize clarity for assembly.
11
GENERATOR PREPARATION
32
-30-20-100102030
-20020406080100
40
°F
°C
Synthetic 5W-30
30
10W-30
The following section describes the necessary steps to prepare the generator for use. If 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/CHECK 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 37.2 fl. oz (1.1 L).
ENGINE OIL RECOMMENDATIONS - Select good quality detergent oil bearing the American Petro-
leum Institute (API) service classifications SJ, SL, or SM (synthetic oils may be used). Select the SAE
viscosity grade of oil that matches the expected operating temperature. For general use (above 40° F),
we recommend 30W engine oil.
• 30W engine oil for temperatures above 40°F.
• 10W-30 engine oil for temperatures between 0°F - 40°F.
To add oil, follow these steps:
1. Place the generator on a level surface. Make sure the engine
is OFF before adding or checking oil.
CAUTION: Keep the generator level! Tilting the generator to
assist in filling will cause oil to flow into the wrong areas of
the engine and cause damage.
2. Unscrew the oil dipstick from the engine.
3. Using an oil funnel or appropriate dispenser, slowly add oil
into the oil fill (Fig. 2), being careful not to overfill the unit. Fill
the crankcase to the upper fill line so you can visually see the oil
coming halfway up the oil fill threads (Fig. 3).
• Synthetic 5W-30 engine oil for
all temperature ranges.
Fig. 1 - Oil Recommendation Chart
Fig. 2
Oil Dipstick
Upper Level
Fill Line
4. Reinstall the oil dipstick and firmly tighten it. Wipe clean any
spilled oil.
12
Lower Level
Fill Line
Fig. 3
GENERATOR PREPARATION
For subsequent operation, the oil level should be checked before each use, or after every 8 hours of operation. The generator is equipped with a low-oil sensor and will NOT start without a sufficient amount of oil.
To check oil level (before every subsequent start):
1. Place the generator on a level surface. Make sure the engine is OFF
before adding or checking oil.
2. Remove and wipe the dipstick with a clean rag.
3. Insert the dipstick into the oil fill without screwing it in. Remove the
dipstick to check the oil mark (Fig. 4).
Upper Limit
If the oil mark covers less than one half of the dipstick, slowly add oil
until the oil mark reaches to the top of the dipstick (or when you can
see the oil coming halfway up the oil fill threads).
4. Wipe clean any oil leaks and firmly tighten the dipstick.
Lower Limit
Fig. 4
OIL LEVEL SHUTDOWN
To protect the unit from damage, the generator is equipped with a low-oil-pressure shutoff that will automatically shut down the engine when the oil level is too low. The oil level of the engine should be checked before
each start to ensure that the engine crankcase contains sufficient lubricant.
TIP: Your WEN generator is compatible with the WEN 55201 Magnetic Oil Dipstick (not included), avail-
able for purchase at wenproducts.com. The dipstick’s industrial-strength magnetic tip will collect metal
shavings from your generator’s oil tank to help preserve the engine and extend your generator’s lifespan.
13
GENERATOR PREPARATION
STEP 2 - ADD/CHECK FUEL
FUEL OPTION A: GASOLINE
GASOLINE WARNING: Keep generator away from open flame. This generator may emit highly flam-
mable and explosive gasoline vapors, which can cause severe burns or even death if ignited. A nearby
open flame can lead to explosion even if not directly in contact with gasoline.
• Do not operate near open flame.
• Do not smoke near the 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. Fuel 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 fuel tank before storing or transporting the generator to prevent spilling.
Use ONLY fresh (within 30 days from purchase), lead-free gasoline with a minimum of 87 octane rating.
The generator performs best with ethanol-free gasoline. DO NOT use gasoline with over 10% ethanol.
The capacity of the fuel tank is 6.6 gallons. DO NOT mix oil with gasoline.
To add gasoline, follow these steps:
IMPORTANT:
1. Make sure the generator is shut OFF and on a level surface. Unscrew the fuel cap (Fig. 6) and set it aside. The fuel
cap may be tight and hard to unscrew.
2. Slowly add unleaded gasoline to the fuel tank. Be careful
not to overfill.
NOTE: Do not fill the fuel tank to the very top. If you do so,
gasoline will expand and spill during use, even with the fuel
cap in place.
3. Reinstall fuel cap and wipe clean any spilled gasoline
with a dry cloth.
To check fuel level
(before every subsequent start):
• Never use an oil/gasoline mixture.
• Never use old gasoline.
• Keep gasoline away from sparks, open
flames, pilot lights, heat and other sources
of ignition.
• Avoid getting dirt or water into the fuel
tank.
• Gasoline can age in the tank and make
starting difficult. Never store generator for
more than 2 months with fuel in the tank.
Fuel Cap
Fuel Gauge
Before starting the generator, check the fuel gauge to see if
there is sufficient fuel inside the tank. “E” indicates Empty
and “F” indicates Full. Refill the fuel tank as necessary.
14
Fig. 6
GENERATOR PREPARATION
WARNING: If using gasoline, the LPG tank must be shut OFF. If using LPG, the fuel valve on the
generator must be turned to OFF position.
FUEL OPTION B: LIQUID PETROLEUM GAS (LPG)
DANGER: EXPLOSION AND FIRE. LP vapors are extremely flammable and explosive. Do not use or
store LP cylinder in a building, garage or enclosed area. Failure to do so will result in death or serious
injury.
WARNING: EXPLOSION AND FIRE. The cylinder valve should be turned OFF (closed) when generator
is not in use. Failure to do so could result in death or serious injury.
• Always keep the LPG cylinder in an upright position.
• When transporting and storing, keep cylinder secured in an upright position with cylinder valve turned
off. Keep cylinders ventilated and away from heat when in a vehicle.
• Liquid Petroleum Gas (LPG) is highly flammable and explosive. Flammable gas under pressure can
cause a fire or explosion if ignited.
• In any petroleum gas fire, flames should not be extinguished unless the fuel supply valve is turned
OFF. If a fire is extinguished and a supply of fuel is not turned OFF, an explosion hazard could be created.
• RISK OF BURNS. Contact with liquid contents of cylinder will cause freeze burns to the skin. If liquid
contents contacts skin or eyes, seek immediate medical attention.
• When exchanging LPG cylinders, be sure the cylinder valve is of the same type.
NOTE: LPG regulator inlet pressure is approximately 30 PSI at 0 °F, and 218 PSI at 100 °F.
• You can use LPG tanks with Type 1, right hand Acme threads with this generator. Verify that the qualification
date on tank has not expired. Do not use rusted or damaged cylinders.
• All new cylinders must be purged of air and moisture prior to filling. Used cylinders that have not been
plugged or kept closed must also be purged.
• The purging process should be done by the propane gas supplier. (Cylinders from an exchange supplier
should have been purged and properly filled by supplier).
Follow the instruction on the next page for connecting your generator to an LPG cylinder.
15
GENERATOR PREPARATION
FUEL OPTION B: LIQUID PETROLEUM GAS (LPG) - CONTINUED
To connect your generator to an LPG cylinder:
1. Take off the safety caps from the cylinder valve, generator
mounted regulator, and regulator connecting hose ends.
2. With the LPG tank closed, attach the LPG regulator connecting
hose into the valve. Turn the plastic coupling from the hose right
(clockwise) to tighten hose assembly onto the LPG tank (Fig. 7).
3. Connect the opposite regulator connecting hose end to the generator’s LPG primary regulator with a 3/4 in. (19mm) wrench (not
supplied) (Fig. 8).
4. Turn the LPG tank valve ON (Fig. 9) and check for leaks by spraying soapy water to check connections. If bubbles appear, become
larger in size, or increase in number, a leak exists. This MUST be
corrected before using generator. Contact your local Independent
Authorized Service Dealer (IASD) for assistance.
Fig. 7
NOTE: You can use Teflon (or other tape) to secure the connection
of the LPG hose to your generator.
CAUTION: Always position the LPG cylinder so the connection
between the valve and regulator won’t cause sharp bends or
kinks in hose.
WARNING: Risk of burns. Contact with liquid contents of
cylinder will cause freeze burns to the skin. If liquid contents
contacts skin or eyes, seek immediate medical attention.
WARNING: When transporting and storing, keep cylinder
secured in an upright position with cylinder valve turned off.
Keep cylinders ventilated and away from heat when in a vehicle.
Fig. 8
Fig. 9
16
GENERATOR PREPARATION
STEP 3: CONNECT THE BATTERY
WARNING: BATTERY GIVES OFF EXPLOSIVE HYDROGEN GAS.
• Keep battery away from spark, flame, or cigarette.
• Do not connect or disconnect battery while generator is running.
• Service or use battery only in well ventilated areas.
WARNING: Battery contains sulfuric acid. Battery acid is poisonous. Tilting the generator with the
battery installed can cause battery acid to spill.
• Wear protective clothing and eye wear when servicing battery.
• Keep out of reach of children.
• Do not tilt generator with battery installed.
• If battery acid gets on your skin, wash with water immediately.
• If battery acid gets in your eyes, flush with water for at least 15 minutes and call a doctor immediately.
If battery acid is swallowed, call a doctor immediately. Drink a large amount of water or milk. Then drink
milk of magnesia or vegetable oil.
The generator comes with the battery disconnected for safety. When using gasoline to run the generator,
the battery must be connected whether using electric or recoil start. The battery must also be connected for
electric start when using LPG, but the battery does not need to be connected for recoil start on LPG.
To connect the battery:
1. Remove the red cover from the positive (+) battery terminal.
2. Connect the red cable to the positive (+) battery terminal with the suitable nuts and bolts.
3. Attach the free end of the negative cable to the battery and secure the connection.
4. Make sure connections are secure and slide rubber boot over the positive (+) battery terminal and connection hardware.
5. Connect the black cable to the negative (-) battery terminal with the suitable nuts and bolts.
6. Make sure all connections are secure and slide rubber boot over the negative (-) battery terminal and connection hardware.
IMPORTANT: If you do not plan to use the generator for an extended period of time, it is recommended to
DISCONNECT the negative battery cable from the battery to protect the battery from losing charge. After
disconnecting the cable, cover the free end with an insulator such as electrical tape.
17
GENERATOR PREPARATION
STEP 4 - GROUND THE GENERATOR
To reduce the risk of electric shock and to maximize safety, the
generator should be properly grounded.
Ground the generator by tightening the grounding nut on the
front control panel (Fig. 10) against a grounding wire. 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 with the generator.
NOTE: Grounding codes can vary by location. Contact a local electrician to check the area codes.
Grounding Nut
Fig. 10
WARNING: Failure to properly ground the generator increases your risk of electric shock.
HIGH ALTITUDE OPERATION ABOVE 2000 FEET
The fuel system on this generator may be affected by operation at high altitudes. Proper operation can be
ensured by installing an altitude kit at altitudes higher than 2000 feet above sea level. At elevations above
7000 feet, the engine may experience a decrease in performance, even with the proper altitude kit. Operating this generator without said kit may increase the engine’s emissions and decrease both fuel economy
and performance.
This kit should be installed by a qualified mechanic. You can order the kit at wenproducts.com by searching part number DF1100-HA27. Refer to the instructions included with your altitude kit for more information
about installation.
WARNING: To prevent serious injury from fire, follow the kit installation procedures in a well-ven-
tilated area away from ignition sources. If the engine is hot from use, shut the engine off and wait for it
to cool before proceeding. Do not smoke near the generator. Warranty will be void if adjustments are not
made for high altitude use.
CAUTION: Engines with the high-altitude kit installed operated at lower altitudes could cause severe
engine damage and affect emissions compliance. Be sure to UNINSTALL the high altitude kit when operating at altitudes below 2000 feet.
After completing the above preparation, the generator is ready to be started.
18
STARTING THE GENERATOR
Before starting the generator, make sure you have read and performed the steps in the “GENERATOR PREPARATION” 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. But even if you cannot smell the exhaust, you could be breathing CO.
NEVER use a generator inside homes, garages, crawl spaces, or other partially 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
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: The exhaust from this product contains chemicals known to the State of California to
cause cancer, birth defects, or other reproductive harm.
WARNING: DO NOT operate generator near open flame or flammable materials 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 smoke near the generator.
WARNING: This generator produces powerful voltage, which can result in electrocution.
WARNING: 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.
WARNING:Generator should ONLY be connected to electrical devices, either directly or with an
extension cord. NEVER CONNECT TO A BUILDING ELECTRICAL SYSTEM without a qualified electrician
and connected to a transfer switch as a separately derived system. 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.
To maximize safety, ALWAYS ground the generator before using it (see the “GROUND THE GENERATOR” section on page 18).
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.
CAUTION: Disconnect all electrical loads from the generator before attempting to start.
19
STARTING THE GENERATOR
BEFORE STARTING THE GENERATOR
1. Verify that the generator is outside on a dry, level surface. Allow at least two feet of clearance on all sides
of the generator.
2. To maximize safety, check that the generator is properly grounded (see “GROUND THE GENERATOR”).
3. Check there is sufficient level of oil in the crankcase. Add oil if necessary (see “ADD/CHECK OIL”).
4. Verify the fuel selection dial is turned to the desired fuel. Turn the dial up to 12 o’clock position for gasoline
and down to 6 o’clock position for LPG. Check that there is adequate supply of the selected fuel.
5. Make sure all electrical devices are unplugged from the generator during ignition. Otherwise it will be difficult for the engine to start.
WARNING: The LPG cylinder valve must be shut OFF when using
gasoline. The generator’s fuel valve must be shut OFF when using LPG.
STARTING THE GENERATOR
1. To use gasoline, turn the fuel valve to the ON position.
To use LPG, make sure all of the LPG connectors and hoses are well connected and sealed. Close the fuel valve, then open the LPG tank valve.
2. Move the choke lever to the CLOSE/START position.
a. To start the engine with electric starter:
3. Insert the key and turn the engine switch to the
START position for 2-3 seconds. NOTE: If the engine
does not start, release the switch and try again.
Keeping the switch in the START position too long
can damage the starter.
4. When engine starts, release the switch to the ON.
5. Slowly move choke lever to the OPEN/RUN position. If engine fires, but does not continue to run,
move choke lever to CLOSE/START position and repeat starting instructions.
b. To start the engine with recoil starter:
3. Turn the engine switch to the ON position.
4. 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.
If engine fails to start, repeat this step.
5. Once the engine has started, slowly return the
choke lever all the way to the OPEN/RUN position.
6. 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. Follow the instructions in the next section for properly
connecting your electrical devices.
NOTE: In case you have had repeated failed attempts to start the engine, please consult the troubleshooting
guide before attempting to start the generator. If problems persist please call (800) 232-1195, M-F 8-5 CST.
20
USING THE GENERATOR
CALCULATING THE WATTAGE OF YOUR DEVICE(S)
Connect electrical devices running on AC current according to their wattage requirements. Calculate the total
running wattage and starting wattage of the device(s) you wish to connect, and MAKE SURE that they are
within the capacity of your generator and the capacity of each individual outlet.
The generator can produce a maximum of
8300W/7500W on a continuous basis to
supply ongoing power to your electronic
devices.
NOTE: Also check the rated amperage for
each outlet and make sure not to overload
the individual outlets.
Find the wattage information of each device you plan to connect. The information
should be listed on the device or in its instruction manual, or you may refer to Fig. 11.
The wattage can be calculated using this equation:
Watts = Volts x Amperes
To calculate the total running watts of
your devices:
What this means:
Some devices such as box fans require
short bursts of extra power in addition to
the rated wattage listed by the device to
start their motors.
The generator can produce a maximum
wattage of 11000W/9500W for a short
period of time (seconds) to cover the extra
starting power required by your electronic
devices.
To calculate the total starting watts of
your devices:
+ Add up the running wattages of all the
device(s) you plan to connect
Electronic
Device Wattage
Calculation
= The total running wattage
This wattage should NOT exceed the running wattage of 8300W/7500W.
It is recommended to maintain a load at
or below 7470W/6750W (90% of the rated
output) to ensure steady voltage output
and to prolong the generator’s lifespan.
If any of either of the total calculated running watts or starting watts is higher than the
capacity of your generator, adjust the load until both wattage requirements are met.
Otherwise you will overload the generator, and cause damage to the engine and your
electrical device(s).
+ Add up the total running wattage of all
the device(s) you plan to connect
+ Add the single highest ADDITIONAL
starting wattage out of the device(s) you
plan to connect
= The total surge (starting) wattage
This wattage should NOT exceed the
starting wattage of 11000W/9500W.
21
USING THE GENERATOR
CALCULATING THE WATTAGE OF YOUR DEVICE(S) - CONTINUED
The chart below serves as a reference
for the estimated wattage requirements of common electrical devices.
However, do not solely rely on this chart - all electronics and appliances are built differently. Always check
the wattage listed on the electrical device before consulting this chart.
Tool or ApplianceRated (Running) WattsSurge (Starting) Watts
Electric water heater (40 Gal)40000
Hot plate25000
Saw - radial arm20002000
Electric stove (each element)1500-28000
Saw - circular15001500
Air compressor (1 HP)15003000
Window air conditioner12001800
Saw - miter12001200
Microwave10000
Well water pump10001000
Sump pump8001200
Refrigerator freezer8001200
Furnace blower8001300
Computer8000
Electric drill600900
Television5000
Deep freezer500500
Garage door opener4800
Stereo4000
Box fan300600
Clock radio3000
Security system1800
DVD player / VCR1000
Common light bulb750
Fig. 11 -
Estimated wattage requirements of common electrical devices
22
Fig. 12 -
Control Panel
USING THE GENERATOR
CONNECTING ELECTRICAL DEVICES
CAUTION: Become familiar with the functions and capacity of each component on the control panel
(page 9) before connecting electrical devices. Do not overload generator or individual panel receptacles.
DO NOT connect 50Hz or 3-phase loads to the generator.
Follow the steps below to properly connect your device(s) to the generator:
1. Before connecting electrical devices, allow the generator to run for a few minutes to stabilize the speed
and voltage output.
2. Select the device with the highest wattage, and make sure it is turned off. Plug the device into the matching
generator outlet and then turn the device on. Allow the engine to stabilize.
3. Repeat step 2 to plug in each additional device. DO NOT attempt to plug in or start multiple devices at the
same time.
IN CASE OF OVERLOAD
If your generator becomes overloaded from too much drawn wattage, the push-to-reset circuit breaker(s) on
your control panel will activate and cut off the output. When an overload occurs, reduce the load by turning
off and unplugging your electronic device(s), then press the activated circuit breaker to reset your generator.
If the circuit breaker does not reset, wait several minutes and try again. If no power is produced after resetting, restart your generator.
SOME NOTES ABOUT POWER CORDS
Long or thin extension cords can drain the power provided to your electrical devices. Refer to the following
chart in determining the necessary gauge extension cord for each of your devices. Round up to the higher
amperage in the chart to maximize safety.
Device RequirementsMax. Cord Length (ft) by Wire Gauge
1. Before changing the fuel source, make sure the generator is turned OFF or running UNDER half-load. DO
NOT change fuel when generator is over half-load.
2. If switching from LPG to gasoline, turn OFF the LPG tank valve and disconnect LPG fuel tank from generator. Then turn ON the fuel valve.
If switching from gasoline to LPG, turn OFF the fuel valve. Then follow the LPG connecting procedure in section “FUEL OPTION B: Liquid petroleum gas (LPG)”.
3. Check the fuel level of the selected fuel and make sure there is adequate amount.
4. Turn the fuel selection dial to the desired fuel - Turn the dial up to 12 o’clock position for gasoline and down
to 6 o’clock position for LPG.
SHUTTING OFF THE GENERATOR
TO STOP THE GENERATOR
1. Turn off all electrical devices. Unplug the devices from the generator. Never start or stop the generator with
electrical devices plugged in or turned on.
2. Let engine run at no-load for several minutes to stabilize internal temperatures of engine and generator.
3. Turn the engine switch to the OFF position.
4. If using gasoline, turn the fuel valve to the OFF (horizontal) position. If using LPG, turn the LPG tank valve
to the OFF position.
IMPORTANT: Always ensure that the fuel valve and the engine switch are in the OFF position when the generator is not in use.
5. Turn the fuel selection dial to Gasoline position (12 o’clock).
6. Drain the carburetor (See “Draining the Carburetor“ on Page 26).
WARNING: Allow the generator to cool down 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 (over 2 months) with
fuel in the fuel tank. Refer to “STORING THE GENERATOR”.
24
MAINTENANCE
RECOMMENDED MAINTENANCE SCHEDULE
Proper routine maintenance of the generator will help prolong the life of the machine. Please perform maintenance checks and operations according to the Maintenance Schedule in Fig. 14. If there are any questions
about the maintenance procedures listed in this manual, please call (800) 232-1195 M-F 8-5 CST or email
techsupport@wenproducts.com.
WARNING: Never perform maintenance operations while the generator is running. Before maintaining or servicing the generator, turn OFF the generator, disconnect all devices and allow the generator
to cool down.
Recommended
Maintenance Schedule
Engine Oil
Air Filter
Spark Plug
Fuel
Carburetor
Spark
Arrestor
Battery
Check levelx
Replacex*x
Checkx*
Cleanx*
Check/clean/
regap
Changexx
Check levelx
Drainxx
Drainxx
Check/Cleanx
Disconnectx
Each 8
hours or
daily
Every 25
hours
Every 3
months
or 50
hours
Every 6
months or
100 hours
x
Before
Storage
As
necessary
Fig. 14 - Recommended Maintenance Schedule
* Clean/change more often under dusty conditions or operating under heavy load.
IMPORTANT GENERATOR MAINTENANCE TIPS:
• Drain your carburetor after each use and before storage to prevent it from clogging.
• Do not store the generator with fuel inside the tank for more than 2 months - the fuel will go bad.
• Run the generator for 20 to 30 minutes every month to maximize its lifespan.
NOTE: Failure to properly maintain the generator will void the warranty.
25
MAINTENANCE
CLEANING THE GENERATOR
Keep the generator clean to prevent improper operation or machine damage from dirt and debris. Inspect all
ventilation openings on the generator. These openings must be kept clean and unobstructed.
If the generator becomes dirty, use a damp cloth to wipe exterior surfaces. Use a soft bristle brush to loosen
dirt and oil and use a vacuum to pick up loose dirt. Use low pressure air (not to exceed 25 PSI) to blow
away dirt.
WARNING: 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 corrosion or a short circuit.
DRAINING THE CARBURETOR
We recommend draining the carburetor after every use and before storing the generator. Draining the
carburetor can help prevent build-up and blockages caused by stagnant fuel inside of the carburetor.
1. Prepare an approved gasoline-storage container under
the carburetor to collect the drained fuel.
2. The carburetor (Fig. 18 - 1) can be accessed from the
backside of the generator between the engine and the air
filter. To drain the carburetor, open up the carburetor drain
screw with a Phillips-head screwdriver (not included) and
drain out any gasoline that has built up inside.
3. Once the fuel has drained, close the drain screw.
NOTE: Make sure to drain your carburetor before storing
the generator for long periods of time.
Fuel Drain
Screw
Fig. 15 - Draining the Carburetor
26
MAINTENANCE
CHECKING/ADDING OIL
Check the oil level before each use and every 8 hours of operation (refer to Fig. 14).
The oil capacity of the generator engine is 37.2 fl. ounces. 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. This is a critical step for proper engine starting. The generator is equipped with an automatic shutoff to protect it from
running on low oil.
To check the oil level and add oil:
1. Make sure the generator is on a level surface. Do not tilt the generator, as oil will flow into engine areas
and cause damage. Keep generator level!
2. Clean around the oil fill. Remove the dipstick and wipe the it with a
clean rag.
3. Insert the dipstick into the oil fill opening without screwing in. Remove the dipstick to check the oil mark (Fig. 16). Add oil if the oil mark
covers less than one half of the dipstick.
4. Using a funnel or appropriate dispenser, slowly add more oil. Repeat
step 3 until the oil mark reaches the top of the dipstick (you can see oil
coming up the threads of the oil fill). Do not over fill.
5. Reinstall dipstick and wipe clean any spilled oil with a rag. Reinstall
the oil access cover.
Upper Limit
Lower Limit
Fig. 16
DRAINING/CHANGING OIL
Change the oil according to the Recommended Maintenance
Schedule in Fig. 14.
Change the 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. Changing
the oil when the engine is warm allows for complete drainage.
Oil Drain Bolt
To drain the oil from the generator:
1. Place generator on elevated platform. Prepare an approved gasoline-storage container underneath the
oil drain bolt next to the oil dipstick to catch the oil as it drains.
Fig. 17
2. Unscrew the oil drain bolt (Fig. 17) and allow oil to drain from the engine completely.
3. Reinstall the oil drain bolt and tighten it securely. Wipe clean any oil spillage.
NOTE: Never dispose of used engine oil in the trash or down a drain. Please call a local recycling center
or auto garage to arrange proper oil disposal.
27
MAINTENANCE
AIR FILTER MAINTENANCE
Check every 50 hours of operation (refer to Fig. 14 - Recommended Maintenance Schedule).
Routine maintenance of the air filter helps maintain proper airflow to the carburetor. Occasionally check that
the air filter is free of excessive dirt. Clean air filter more frequently in dirty or dusty conditions
To inspect and clean the air filter:
1. Remove the air filter cover (Fig. 18) by undoing the clasps at the
top and bottom of the air filter cover.
2. Remove the sponge-like air filter element from the casing.
Wipe excessive oil and any dirt from inside of the air filter casing.
3. Check and clean the foam air filter element. Good elements can
be washed in soapy water. Dry the element in clean cloth (do not
twist it). A small amount of oil left in the element is normal and
necessary for the engine to work properly.
If the air filter element has been damaged, replace it with a new
one. Replacement air filters can be ordered from wenproducts.com by searchingpart no. DF1100-175.1.
Air Cleaner Cover
Fig. 18
4. Reinstall the air filter element and air filter cover.
WARNING: Running the engine with a dirty, damaged or missing air filter element can result in
danger to the operator and cause the engine to wear out prematurely.
SPARK ARRESTOR MAINTENANCE
Inspect and clean the spark arrestor every 100 hours of operation.
The spark arrester is located outside the muffler, which gets very hot during operation. Allow the engine to
cool completely before servicing the spark arrester. To inspect and clean the spark arrester:
1. Remove the screws holding the cover plate which retains the
end of the spark arrester to the muffler (Fig. 19).
2. Remove the spark arrester screen.
3. Carefully clean and remove the carbon deposits from the spark
arrestor screen with a wire brush. Replace the spark arrestor if it
is damaged.
4. Reinstall the spark arrestor in the muffler and secure it in place
with the screws.
28
Fig. 19
MAINTENANCE
SPARK PLUG MAINTENANCE
Refer to Recommended Maintenance Schedule in Fig. 14 for maintaining the spark plug.
The spark plug is important for proper engine operation. Check the spark plug regularly to maintain proper
engine operation. A good spark plug should be intact, free of deposits, and properly gapped.
To inspect or replace the spark plug:
1. Pull on the spark plug boot to remove it (Fig. 20). Be careful
not to tear insulation or wire.
2. Remove the spark plug rubber boot and unscrew the spark plug
from the engine using the spark plug wrench provided (Fig. 21).
TIP: 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. If it is cracked or chipped, or if
the electrodes are worn or burned, discard it and replace with a
new spark plug.
We recommend replacing with an NGK BP7ES/Torch F7TC spark
plug (part no. DF475-145), available for purchase at
wenproducts.com.
4. 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.
5. Measure the plug gap with a spark plug gap gauge. The gap
should be 0.7 to 0.8 mm (0.028-0.031 in.) (Fig. 22). Carefully adjust the gap if necessary.
Cylinder
Assembly
Spark Plug
Boot
Fig. 20
Plug Wrench
Spark Plug Boot
Fig. 21
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 (15 ft-lb torque/20.33
Nm) after spark plug gasket contacts spark plug hole.
7. Reinstall the spark plug boot over the spark plug.
0.7 - 0.8 mm
Fig. 22
29
MAINTENANCE
BATTERY MAINTENANCE/STORAGE
The battery (part no. DF1100-041) shipped with the generator has been fully charged. The battery will receive charge when the engine is running. Remember to run the generator once a month for 20-30 minutes
to charge the battery. A charged battery will allow you to start the generator using the electric start switch
during your next time of need.
If the battery is out of charge, you can still manually start the generator using the recoil start with LPG as your
fuel source.
IMPORTANT: If the generator is not used for a long period, it is recommended to disconnect the positive
battery cable from the battery to protect the battery from losing charge. After disconnecting the cable, cover
the free end with an insulator such as electrical tape. You may can also connect the battery to an automatic
trickle charger to keep the battery charged.
To reinstall/replace the battery:
1. Disconnect the negative (-) battery terminal first (black wire).
2. Disconnect the positive (+) battery terminal second (red wire).
3. To install a new battery, install the hold down bracket, insert the threaded rod and tighten with M6 nuts.
4. Connect the positive (+) battery terminal (red wire) first. Slide rubber boot over the connection hardware.
5. Connect the negative (-) battery terminal (black wire) second. Slide rubber boot over connection hardware.
NOTE: Always recycle used batteries in accordance with local laws and regulations. Contact your local solid
waste collection site or recycling facility to obtain information on local recycling processes.
30
MAINTENANCE
DRAINING THE FUEL TANK
Drain and clean the fuel tank each year, or before storing the generator for longer than two months.
To drain the fuel tank:
1. Prepare an approved gasoline-storage container to collect the drained fuel. Place it near the fuel valve.
2. Turn the fuel valve to the OFF position.
3. Locate the fuel line between the fuel valve and back of control panel. Disconnect the fuel line from the fuel
valve. NOTE: A small amount of fuel may leak from the fuel line during removal.
4. Place a funnel below the fuel valve opening, and direct the other end of the funnel over the prepared
container. Turn the fuel valve to ON to start draining the fuel from the fuel valve opening.
5. Once the fuel is drained, shut OFF the fuel valve.
6. Start and run the engine until the fuel runs out.
7. Drain the carburetor according to the instructions on page 26.
8. Store the emptied gasoline in a suitable place. DO NOT store flammable materials near the gasoline.
Do not store fuel for more than 3 months.
CAUTION: Store the emptied gasoline in a suitable place. Never store fuel for more than 2 months.
31
TRANSPORTATION & STORAGE
TRANSPORTING THE GENERATOR
To prevent fuel spillage when transporting, be sure to perform the following to your generator:
1. Tighten the fuel cap and make sure the fuel valve is turned to OFF.
2. Make sure the engine switch is in the OFF position.
3. Drain the fuel tank if possible (see “DRAINING THE FUEL TANK”).
4. Keep the generator upright. Never place the generator on its side or upside down - doing so could
damage the internal components of the generator and make it difficult to start.
WARNING: Avoid direct sunlight inside a vehicle. If the generator is left in an enclosed vehicle for
many hours, the high temperature could cause the fuel to vaporize and result in a possible explosion.
STORING THE GENERATOR
Shut off the generator and allow the unit to cool to room temperature before storing it. NEVER place any
type of storage cover on the generator while it is still hot. Do not obstruct any ventilation openings.
Follow the procedures below for properly storing your generator. We highly recommend running your generator once a month for 20 to 30 minutes. Plug in a small load in to ensure there is proper power output.
For Short Periods (30 to 60 Days):
For Extended Periods
(Over 60 Days):
• Drain the carburetor (see page 26).
• Disconnect the negative terminal from the battery.
• Add fuel stabilizer:
Follow the suggested portions and instructions of your
preferred stabilizer. Run the engine for 15 to 20 minutes, allowing the fuel stabilizer to mix with the gasoline
and circulate through the carburetor, and then top off
with fuel. Filling the fuel tank full reduces the amount of
air in the tank and helps fight deterioration of fuel.
WARNING: Store the generator upright in a cool and dry location, away from sources of heat, open
flames, sparks or pilot lights.
• Disconnect the negative terminal from the
battery (see page 30) .
• Drain the fuel tank and carburetor (see
“
DRAINING THE FUEL TANK”
generator with fuel in the tank for more than
two months.
• Change the engine oil (see “CHANGING
OIL”).
). NEVER store
PRODUCT DISPOSAL
Do not dispose of used generator or parts with your household waste. This product contains electrical or
electronic components that should be recycled. Please take this product to your local recycling facility for
responsible disposal to minimize its environmental impact.
Do not dispose of used oil or fuel in the trash or down a drain. Please contact your local recycling center or
auto garage to arrange proper oil/fuel disposal.
32
SPECIFICATIONS
GENERATOR
Gasoline: 8300 Watts
Rated Wattage
LPG: 7500 Watts
Gasoline: 11000 Watts
Surge Wattage
LPG: 9500 Watts
PhaseSingle
Frequency60Hz
Rated Voltage AC: 120V/240V, DC: 12V
Rated AmperageAC: 70A/35A, DC: 8A
Product Dimensions27.3 x 20.6 x 21.9 in. (L x W x H)
Product Net Weight213.8 lbs
ENGINE
Engine Type4-stroke, OHV, single cylinder with forced air cooling system
Engine Displacement457cc
Engine Horsepower12.6 HP at 3600 RPM
Fuel TypeGasoline and LPG
Gas Tank Capacity6.6 US Gallons (25 L), 87 octane minimum
Oil Capacity37.2 fl. oz. (1.1 L)
Gasoline: 8.5 hours
Half-Load Run Time
LPG (with 20 lb tank): 3 hours
Spark Plug TypeTorch F7TC/NGK BP7ES
Spark Plug Gap0.7 - 0.8 mm (0.028 - 0.031 in)
Spark Plug Torque1/2 - 3/4 turn after gasket contacts base or 15 ft-lbs
IMPORTANT: Repairs and replacements should only be performed by an authorized technician. Parts and
accessories that wear down over the course of normal use are NOT covered by the two-year warranty.
33
GENERATOR
EXPLODED VIEW
EXPLODED VIEW & PARTS LIST
1.4
80
1.3
81
34
82
EXPLODED VIEW & PARTS LIST
No.Part No.DescriptionQty.
1DF1100-001Rotor & Stator Assembly1
1.1DF475-001.1Carbon Brush Assembly1
1.2DF475-001.2Grounding Post Assembly1
1.3DF1100-001.3Rotor1
1.4DF1100-001.4Stator1
2DF1100-002Motor Stand1
3DF1100-003Bolt M5X2302
4DF1100-004Nut M52
5DF1100-005Flat Washer Ø52
6DF1100-006Spring Washer Ø53
7DF1100-007Frame 1
8DF1100-008Rack Cable1
9DF1100-009Isolator B4
10DF475-010Fuel Filter1
11DF1100-011Fuel Tank Assembly1
12DF475-012Fuel Cock1
13DF1100-013Regulator Assembly1
14DF475-014LPG Hose Assembly 1
15DF1100-015Crankcase Guard Cover1
16DF1100-016Flat Washer2
17DF1100-017Bolt M10X1.25X2831
18DF475-016Gasket, Rotor Bolt Ø10.5XØ30X41
19DF1100-019Handle Assembly2
20DF1100-020Bolt M6X1954
21DF1100-021Bolt M6X129
22DF1100-022Nut M104
23DF1100-023Air Cleaner Bracket1
24DF1100-024Exhaust Pipe Gasket1
25DF1100-025Cotter Pin2
26DF1100-026Muffler Assembly1
27DF1100-027Spring Washer 2
28DF1100-028Bolt M8X302
29DF1100-029Panel Assembly1
29.1DF475-029.1Ignition Switch1
N/AP55340
29.2DF475-029.4
29.3DF1100-029.3AC Thermal Protector 20A/CSA2
29.4DF1100-029.4Multifunction Meter1
29.5DF475-029.2DC Receptacle 12V1
29.6DF1100-029.6Thermal Protector 35A/CSA2
29.7DF1100-029.7NEMA L14-30R 120V/240V 30A1
29.8DF1100-029.8NEMA L14-50R 120V/240V 50A1
29.9DF1100-029.9DC Thermal Protector 8A/CSA1
29.10
DF1100-029.10AC Thermal Protector 35A/CSA2
29.11
DF1100-029.11Rectifier/Charger1
30DF1100-030Handle Plug2
31DF1100-031Bolt M8X452
32DF1100-032Bolt M6X252
33DF1100-033Automatic Voltage Regulator (AVR)1
Starter Key (Set of 2)
NEMA 5-20R 120V 20A GFCI Duplex
No.Part No.DescriptionQty.
34DF475-034Bolt M5X163
35DF475-035Bolt M5X125
36DF475-036Fuel Tank Washer4
37DF475-037Bolt M6X254
38DF1100-038Generator End Cover1
39DF475-039Positive Lead1
40DF1100-040Negative Lead1
41DF1100-041Battery1
42DF1100-042Wheel2
43DF1100-043Foot Support Assembly2
44DF1100-044Vibration Isolation Pad2
45DF475-045Nut M63
46DF475-046Bolt M8X164
47DF475-047Clip Ø122
48DF1100-048Wheel Axel2
49DF475-005Bolt M8X164
50DF1100-050Muffler Bracket1
51DF1100-051Tie Wrap1
52DF475-063Fuel Line Clip Ø101
53DF1100-053Low Pressure Pipe 1
54DF1100-054Toothed Washer Ø51
55DF1100-055Fuel Line (Fuel Cock)1
56DF475-055Fuel Line1
57DF1100-057Connecting Pipe (Gas Tank)1
58DF1100-058Manual Choke Assembly1
59DF475-003Fuel Selector Switch (Panel)1
60DF475-060Clip, Fuel Line Ø7.51
61DF475-061Clip, Fuel Line Ø9.55
62DF1100-062Dustproof Sheet (Right)1
63DF475-004Hex Pan Head Screw M6X121
64DF475-064Nut M64
65DF475-073Fuel Tank Cap Assembly1
66DF475-022Nut M53
67DF1100-067Handle Bush4
2
2
68DF1100-068Dustproof Sheet (Left)1
69DF1100-069One-Way Valve Gasket Washer1
70DF475-070Fuel Selector Switch1
71DF1100-071Crossing Screw M5X123
72DF475-072Paper Washer4
73DF1100-073Handle Rubber2
74DF1100-074Grounding Wire1
75DF1100-075Carbon Tank Assembly1
76DF475-074LPG Regulator Cover1
77DF1100-077Lock Nut M82
79DF1100-079Connecting Pipe1
80DF1100-080Fuel Gauge1
81DF1100-081Fuel Tank Filter1
82DF1100-082Engine Complete1
35
ENGINE EXPLODED VIEW
EXPLODED VIEW & PARTS LIST
36
74.1
75.1
EXPLODED VIEW & PARTS LIST
No.Part No.DescriptionQty.
1DF1100-101Crankcase1
2DF1100-102Ball Bearing (Small)2
3DF1100-103Oil Seal 2
4DF1100-104Governor Arm Shaft Seal1
5DF1100-105Governor Arm Shaft1
6DF1100-106Governor Arm Shaft Washer1
7DF1100-107Lock Pin1
8DF1100-108Drain Plug Bolt2
9DF1100-109Drain Plug Washer2
10DF1100-110Oil Level Switch Assembly1
11DF1100-111Bolt M6X162
12DF1100-112Casecover Dowel Pin2
13DF1100-113Piston1
14DF1100-114Piston Scraper Ring Set1
15DF1100-115Connecting Rod Assembly1
16DF1100-116Piston Pin1
17DF1100-117Piston Clip2
18DF1100-118Crank Casecover Assembly1
19DF1100-119Ball Bearing (Big)1
20DF1100-120Governor Assembly1
21DF1100-121Cylinder Head1
22DF1100-122In Valve1
23DF1100-123Valve Exhaust1
24DF1100-124Intake Valve Returner2
25DF1100-125Valve Oil Seal2
26DF1100-126Valve Spring2
27DF475-132Fuel Line (Carburetor)1
28DF1100-128Ex Valve Spring Seat2
29DF1100-129Push Rod Guide Plate1
30DF1100-130Rocker Assembly2
31DF1100-131Rotator2
32DF1100-132Stud Bolt (Carburetor)2
33DF1100-133Stud Bolt (Exhaust)2
34DF1100-134Exhaust Gasket1
35DF1100-135Dipstick1
36DF1100-136Spring Washer 2
37DF1100-137Nut M82
38DF1100-138Carburetor Assembly1
39DF1100-139Governor Arm1
40DF1100-140Governor Arm Bolt1
41DF1100-141Nut M63
42DF1100-142Crankshaft Assembly1
No.Part No.DescriptionQty.
43DF1100-143Valve Lifter2
44DF1100-144Casecover Gasket1
45DF1100-145Balancing Shaft1
46DF1100-146Camshaft Assembly1
47DF1100-147Bolt M8X352
48DF1100-148Bolt M8X407
49DF1100-149Dowel Pin2
50DF1100-150Cylinder Head Gasket1
51DF1100-151Bolt M10X804
52DF475-145Spark Plug1
53DF1100-153Push Rod2
54DF1100-154Shroud1
55DF1100-155Bolt M6X129
56DF1100-156Cylinder Head Cover Assembly1
57DF1100-157Head Cover Gasket1
58DF1100-158Lock Bolt1
59DF1100-159Upper Shroud Assembly1
60DF1100-160Flywheel Assembly1
61DF1100-161Recoil Starter Fan1
62DF1100-162Starter Pulley1
63DF1100-163Nut Flywheel1
64DF1100-164Rubber Starter Assembly1
65DF1100-165Ignition Coil Assembly1
66DF1100-166Bolt M6X252
67DF1100-167Intake Gasket1
68DF1100-168Carburetor Insulator1
69DF1100-169Carburetor Gasket1
70DF1100-170Adjuster Rocker Arm2
71DF1100-171Exhaust Pipe1
72DF1100-172Governor Rod1
73DF1100-173Throttle Return Spring1
74DF1100-174Recoil Starter Assembly1
74.1 DF1100-174.1Recoil Starter1
75DF1100-175Air Cleaner Assembly1
75.1 DF1100-175.1Air Filter Element1
76DF1100-176Breather Tube1
77DF1100-177Governor Spring1
78DF1100-178Locking Flaps4
79DF1100-179Clip2
80DF1100-180Fuel Rubber1
81DF1100-181Air Cleaner Gasket1
82DF1100-182Fuel Line Clip1
83DF1100-183Starting Motor Assembly1
37
WIRING DIAGRAM
35A
35A
38
TROUBLESHOOTING GUIDE
WARNING: Stop using the generator immediately if any of the following problems occur or risk se-
rious personal injury. If you have any questions, please contact our customer service at (800) 232-1195,
M-F 8-5 CST or email us at techsupport@wenproducts.com.
PROBLEMPOSSIBLE CAUSESOLUTION
Engine switch is set to OFF.Set engine switch to ON.
Fuel valve is turned to OFF.Turn fuel valve to ON.
Oil is low.Add or replace oil.
Engine will not
start.
Engine runs but
there is no
electrical output.
Generator runs but
does not support
all electrical devices connected.
Engine is out of fuel.Add fuel.
Engine is filled with
contaminated or old fuel.
Spark plug is dirty or broken.Clean or replace the spark plug.
Carburetor is air locked.
Circuit breaker has been
tripped due to overload.
Bad connecting cords/wires.
Bad electrical device connected to the generator.
Voltage regulator is bad
Carbon brushes worn or need
adjustment
Generator is overloaded.
Short circuit in one of the
devices.
Air filter is dirty.Clean or replace the air filter element.
Drain fuel in the tank. Fill with fresh fuel.
Shut off the fuel valve. Remove the bolt from the bottom of
the carburetor. Take off the carburetor bowl to allow it to
reset. Replace carburetor bowl and reinstall the bolt.
Turn off and unplug electrical device(s). Wait 5 minutes, then
press the circuit breaker to reset. Check the total wattage of
the devices and reduce the load if it exceeds the capacity of
the generator. Then plug the loads back in one by one.
Check the power cords and extension cords. Do not use if
any cord is damaged. Replace damaged cords immediately.
Try connecting a different device.
Check voltage regulator (p. 35, DF1100-033) with a multimeter, replace if necessary.
Check carbon brushes (p. 35, DF475-001.1), adjust so that
both brushes extrude the same length, or replace if worn.
Turn off and unplug all electrical devices. Wait 5 minutes,
then press the circuit breaker to reset. Reduce load as necessary, then plug devices back in one by one.
Try disconnecting any faulty or short-circuited electrical
loads.
1. The fuel isn’t running
Engine is
“Hunting” during
Operation
(Engine RPM is
fluctuating).
through the fuel valve.
2. The air filter is clogged.
3. The muffler or spark arrester is blocked
4. There is gunk in the carburetor preventing a consistent
fuel/air mixture.
Turn off the generator and wait for it to cool down.
Perform the following steps:
1. Check if the fuel is properly and consistently going
through the fuel valve
2. Check for any blockage in the air filter. Check and clean
the air filter as necessary.
3. Check if the spark arrester is blocked. Clean with metal
brush as necessary.
4. Use “gunk remover” spray on the carburetor jets.
39
WARRANTY STATEMENT
REMEMBER TO SAVE THE RECEIPT. 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. To make a claim under this Limited Warranty, you must make sure to keep a copy of your
proof of purchase that clearly defines the Date of Purchase (month and year) and the Place of Purchase.
Place of purchase must be a direct vendor of Great Lakes Technologies, LLC. Third party vendors such as
garage sales, pawn shops, resale shops, or any other secondhand merchant void the warranty included
with this product. Contact techsupport@wenproducts.com or 1-800-232-1195 to make arrangements for
repairs and transportation.
When returning a product for warranty service, the shipping charges must be prepaid by the purchaser.
The product must be shipped in its original container (or an equivalent), properly packed to withstand the
hazards of shipment. The product must be fully insured with a copy of the warranty card and/or the proof
of purchase enclosed. There must also be a description of the problem in order to help our repairs department diagnose and fix the issue. Repairs will be made and the product will be returned and shipped back
to the purchaser at no charge.
NOTE: THIS LIMITED WARRANTY DOES NOT APPLY TO ACCESSORY ITEMS THAT WEAR OUT FROM REGULAR
USAGE OVER TIME INCLUDING BELTS, BRUSHES, BLADES, ETC.
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. Labor for warranty parts is only covered for the contiguous United States
(48 states).
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.
THANKS FOR REMEMBERING
40
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