9 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 4750 WATT DUAL FUEL GENERATOR bit.ly/wenvideo EPA CERTIFIED For replacement parts visit CARB COMPLIANT WENPRODUCTS.COM 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.
TABLE OF CONTENTS Introduction.............................................................................................. 2 Safety Information.................................................................................... 4 Generator Safety Warnings....................................................................... 5 Know Your Generator................................................................................ 8 Unpacking & Assembly...........................................................
INTRODUCTION 19 THANKS FOR PURCHASING THE WEN GENERATOR! 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 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.
SAFETY INFORMATION WARNING: Before operating the generator, make sure to read all safety warnings and all instructions. 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.
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.
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.
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.
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 12 13 8 14 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.
KNOW YOUR GENERATOR KNOW YOUR CONTROL PANEL 1 2 3 5 6 7 10 9 8 EL SWITCH FU MODEL DF475 4 1. Fuel Selector Dial Turn the dial to select between gasoline or LPG before operation 6. 20A Circuit Breaker (for 5-20R) Thermal protector that protects the 5-20 receptacles from overload 2. Electric Start Key Turn the key to start, run and stop the engine 7. Voltage Selector Selects the voltage between 120V and 240V for the L14-30 receptacle 3.
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.
UNPACKING & ASSEMBLY TO INSTALL THE FEET: Slide two M6X40 bolts (32) through the foot support assembly (43) and the generator frame. Tighten with M6 nuts (45). Repeat for the other foot. TO INSTALL THE WHEELS: NOTE: Connecting/disconnecting the battery’s negative terminal requires removing the right wheel. For your convenience of assembly, the battery’s negative terminal has been pre-connectecd from the manufacturer.
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 20.3 fl. oz (0.6 L).
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.
GENERATOR PREPARATION STEP 2 - ADD/CHECK FUEL FUEL OPTION A: GASOLINE GASOLINE WARNING: Keep generator away from open flame. 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 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.
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.
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.
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.
GENERATOR PREPARATION STEP 4 - GROUND THE GENERATOR To reduce the risk of electric shock and to maximize safety, the generator should be properly grounded. Grounding Nut 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.
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.
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.
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.
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.
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.
USING THE GENERATOR CHANGING FUELS 1. Before changing the fuel source, make sure the generator is turn 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.
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.
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.
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 20.3 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.
N MAINTENANCE M 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 L K To inspect and clean the air filter: 1. Unscrew the cover bolt and remove the air filter cover (Fig. 18). J 2.
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. Spark Plug Boot 2.
MAINTENANCE BATTERY REPLACEMENT The battery (part no. DF475-041) 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.
MAINTENANCE 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. TESTING THE GFCI OUTLET Test the GFCI outlet monthly. The GFCI outlet has two buttons between the outlets (refer to Fig. 22): • RESET (upper) • TEST (lower) To test: 1.
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.
SPECIFICATIONS GENERATOR Rated Wattage Surge Wattage Gasoline: 3800 Watts LPG: 3500 Watts Gasoline: 4750 Watts LPG: 4350 Watts Phase Single Frequency 60Hz Rated Voltage AC: 120V/240V, DC: 12V Rated Amperage AC: 32A/16A, DC: 8A Product Dimensions 23.2 x 17.5 x 18.5 in. (L x W x H) Product Net Weight 105.
EXPLODED VIEW & PARTS LIST 80 78 79 1.3 1.
EXPLODED VIEW & PARTS LIST No. 1 1.1 1.2 1.3 1.4 2 3 Part No. DF475-001 DF475-001.1 DF475-001.2 DF475-001.3 DF475-001.4 DF475-002 DF475-003 Qty. 1 1 1 1 1 1 1 DF475-029.9 DF475-029.
EXPLODED VIEW & PARTS LIST ENGINE EXPLODED VIEW 66.1 64.
EXPLODED VIEW & PARTS LIST No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 Part No.
WIRING DIAGRAM 38
TROUBLESHOOTING GUIDE WARNING: Stop using the generator immediately if any of the following problems occur or risk serious 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. PROBLEM Engine will not start. POSSIBLE CAUSE SOLUTION 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 is out of fuel.
WARRANTY STATEMENT WEN Products is committed to building tools that are dependable for years. Our warranties are consistent with this commitment and our dedication to quality. LIMITED WARRANTY OF WEN PRODUCTS FOR HOME USE GREAT LAKES TECHNOLOGIES, LLC (“Seller”) warrants to the original purchaser only, that all WEN consumer power tools will be free from defects in material or workmanship during personal use for a period of two (2) years from date of purchase or 500 hours of use; whichever comes first.
