Wen DF875iX Instruction Manual
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Wen DF875iX Instruction Manual

8750-watt inverter generator
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MODEL DF875iX
8750-WATT
INVERTER GENERATOR
Instruction Manual
NEED HELP? CONTACT US!
Have product questions? Need technical support? Please feel free to contact us:
1-800-232-1195 (M-F 8AM-5PM CST)
TECHSUPPORT@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. If you use
your tool properly and for its intended purpose, you will enjoy years of safe, reliable service.
WENPRODUCTS.COM
For replacement parts and the most up-to-date instruction manuals, visit

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  • Page 1 1-800-232-1195 (M-F 8AM-5PM CST) TECHSUPPORT@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. If you use your tool properly and for its intended purpose, you will enjoy years of safe, reliable service.

  • Page 2: Table Of Contents

    CONTENTS WELCOME Specifications ....................3 Introduction ..................... 4 SAFETY General Safety Rules ..................5 Generator Safety Warnings ................7 BEFORE OPERATING Unpacking & Packing List ................9 Know Your Generator ..................10 Assembly & Adjustments ................12 Generator Preparation ..................14 OPERATION &...

  • Page 3: Welcome

    SPECIFICATIONS GENERATOR Model Number DF875iX Surge (Starting) Wattage Gas: 8750W LPG: 7800W Rated (Running) Wattage Gas: 7000W LPG: 6300W Rated Voltage 120V / 240V AC Phase Single Frequency 60 Hz Product Weight With Wheel Kit 140 lbs Product Weight Without Wheel Kit 134.5 lbs...

  • Page 4: Introduction

    INTRODUCTION Thanks for purchasing the WEN 8750-Watt Dual Fuel Inverter Generator. Refer to the illustration below for the loca- tion of the serial number on the specifications label. Record the generator information in the spaces provided below. If assistance for information or service is required, please contact customer service by calling 1-800-232-1195, M-F 8-5 CST;...

  • Page 5: Safety

    GENERAL SAFETY RULES WARNING! Read all safety warnings and all instructions. Failure to follow the warnings and instructions may result in electric shock, fire and/or serious injury. Safety is a combination of common sense, staying alert and knowing how your item works. The term “power tool” in the warnings refers to your mains-operated (corded) power tool or battery-operated (cordless) power tool.
  • Page 6 GENERAL SAFETY RULES WARNING! Read all safety warnings and all instructions. Failure to follow the warnings and instructions may result in electric shock, fire and/or serious injury. Safety is a combination of common sense, staying alert and knowing how your item works. The term “power tool” in the warnings refers to your mains-operated (corded) power tool or battery-operated (cordless) power tool.

  • Page 7: Generator Safety Warnings

    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.
  • Page 8 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 3. If any part of the generator, electrical device or pow- er cord is broken, damaged, or defective, make sure 1.

  • Page 9: Before Operating

    Box 1 of 2 Hardware Bag (Box 2 of 2) Tools & Accessories (Box 2 of 2) Generator .........1 Wheel Assembly DF875iX-HA36 High Altitude Kit ....1 Handle ........1 DF875iX-HA68 High Altitude Kit ....1 Wheel Axle and Nut ....2 Funnel ........1 Spark Plug Socket ........1...

  • Page 10: Know Your Generator

    KNOW YOUR GENERATOR TOOL PURPOSE Generators provide you with power when and where you need it most. Refer to the following diagrams to become familiarized with all the parts and controls of your Generator. The components will be referred to later in the manual for assembly and operation instructions.
  • Page 11 KNOW YOUR GENERATOR CONTROL PANEL 1. CO WATCHDOG Carbon Monoxide Monitor 7. Remote Pairing Button Measures the accumulation of poisonous CO gas while the gen- Use this button to pair the remote and generator. See “Re- erator is running. If the level of CO gas gets too high, the CO mote Start”...

  • Page 12: Assembly & Adjustments

    Two high-altitude kits (part Fuel Cup Seal Fuel Cup Seal numbers DF875iX-HA36 and DF875iX-HA68) are included with your generator. Main Jet Main Jet Gather the parts in the high altitude kit.
  • Page 13 ASSEMBLY & ADJUSTMENTS WARNING! Do not turn on the generator until it is fully assembled according to the instructions. Read through and become familiarized with the following procedures of handling and adjusting your tool. Failure to follow the safety instructions may result in serious personal injury. •...

  • Page 14: Generator Preparation

    GENERATOR PREPARATION 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 1-800-232-1195 (M-F 8-5 CST) for customer service. Failure to perform these steps properly can damage the generator or shorten its life.
  • Page 15 GENERATOR PREPARATION TO CHECK OIL LEVEL (before every subsequent start): Fig. 5 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. Upper Limit 3.
  • Page 16 GENERATOR PREPARATION TO ADD GASOLINE: Fig. 6 Fuel Gauge Fuel Cap 1. Place the generator on a level surface. Make sure the engine is OFF before adding or checking the fuel. 2. Unscrew the fuel cap (Fig. 6) and set it aside. The fuel cap may be tight and hard to unscrew.
  • Page 17 "Switching Fuels" section for more information. STEP 3 - CONNECT THE BATTERY WARNING! Use only genuine WEN batteries with your generator (part no. 56380i-1304). Use of other bat- teries may induce premature product failure and could pose a safety risk.
  • Page 18 (e.g. pierced with a nail, hit with a hammer, stepped on, etc.). 6. DO NOT DISASSEMBLE. Incorrect reassembly may pose a serious risk of electric shock, fire or exposure to toxic battery chemicals. If the battery or charger are damaged, call WEN customer service at 1-800-232-1195 for as- sistance.

  • Page 19: Operation & Maintenance

    STARTING THE GENERATOR Before starting the generator, make sure you have read and performed the steps in the “Generator Preparation” sec- tion of this manual. If you are unsure about how to perform any of the steps in this manual please call 1-800-232-1195 (M-F 8-5 CST) for customer service.
  • Page 20 STARTING THE GENERATOR BEFORE STARTING THE GENERATOR Fig. 11 1. Verify that the generator is outside on a dry, level sur- face. Allow at least two feet of clearance on all sides of the generator. 2. To maximize safety, check that the generator is properly grounded.
  • Page 21 The generator will make 6 attempts to start the p. 40 before attempting to start the generator again. If engine. problems persist, please contact WEN customer ser- NOTE: If after 6 attempts the engine has not started, vice (see front page of manual).
  • Page 22 30 seconds. of manual). Check the troubleshooting steps on p. 40. If after checking all these steps the engine still will not start, contact WEN iii. Slowly move the choke lever right to the open position. customer service for assistance.
  • Page 23 30 seconds. Check the troubleshooting steps on p. 40. If after checking all these steps the engine still will not start, contact WEN customer service for assistance. 4. Connect electrical devices.
  • Page 24 STARTING THE GENERATOR STORING THE REMOTE Fig. 17 We recommend clasping your remote to the loops on the USB cover on the panel for easy access. PAIRING THE REMOTE AND GENERATOR 1. Make sure the battery is connected and charged, and the battery switch on the panel is set to ON.
  • Page 25 PAIRING MULTIPLE REMOTES You can pair up to 15 remotes at a time with your generator. Remotes (part no. DF875iX-1432) can be purchased from wenproducts.com. To pair a new remote with your generator, follow instructions above in “Pairing the Remote and the Generator”.

  • Page 26: Using The Generator

    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 run- ning 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.
  • Page 27 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. How- ever, 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.
  • Page 28 USING THE GENERATOR CONNECTING ELECTRICAL DEVICES 1. Before connecting electrical devices, allow the generator to run for a few minutes to stabilize the speed and volt- age output. 2. Select the device with the highest wattage, and make sure it is turned off. Plug the device into the matching gen- erator outlet and then turn the device on.
  • Page 29 USING THE GENERATOR LIGHT MEANING RESOLUTION GREEN (POWER INDICATOR) (OVERLOAD) Generator output is normal. No action needed. Flashes 1x, repeating Voltage at alternator is too low. No elec- Check for loose connections. Call every 3 sec trical output. 1-800-232-1195 for assistance. Flashes 2x, repeating Engine speed is too low.
  • Page 30 USING THE GENERATOR SWITCHING FUELS Fig. 18 To maximize your generator's lifespan, we recommend re- moving all loads from the generator before switching be- tween gasoline and LPG. If this is not possible, reduce loads as much as possible in order to ensure a smooth switch. Your generator is rated to handle a higher load when run- ning on gasoline than on LPG, so keep this in mind when planning your fuel usage.
  • Page 31 • The CO sensor has a lifetime of about 7 years, and is capable of monitoring its lifetime. If your generator shows an error light several years after purchase, it may be time to replace the CO sensor. Contact WEN customer service for assistance.

  • Page 32: Shutting Off The Generator

    SHUTTING OFF THE GENERATOR CAUTION! Unplugging running devices can cause damage to the generator. Never stop the engine with elec- trical devices connected and running. 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 gen- erator in the future.

  • Page 33: Maintenance

    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 below, Table 4. If there are any questions about the maintenance procedures listed in this manual, please contact customer service at 1-800-232-1195 (M-F 8-5 CST), or email techsupport@wenproducts.com.
  • Page 34 MAINTENANCE CLEANING YOUR GENERATOR Keep the generator clean to prevent improper operation or machine damage from dirt and debris. Inspect all ventila- tion 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.
  • Page 35 MAINTENANCE DRAINING THE CARBURETOR Fig. 21 Drain the carburetor after every use and before storing the generator (refer to Table 4). 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.
  • Page 36 We recommend replacing it with an F7RTC (NGK BPR7ES) spark plug. These can be purchased from wenproducts.com (part no. DF875iX-0215). 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.
  • Page 37 MAINTENANCE 5. Measure the plug gap with a spark plug gap gauge. The Fig. 24 gap should be 0.7 to 0.8 mm (0.028-0.031 in). Carefully adjust the gap if necessary. See Fig. 24. 0.7 - 0.8mm 6. Screw the spark plug back into the spark plug hole us- ing the spark plug wrench.
  • Page 38 MAINTENANCE BATTERY MAINTENANCE/STORAGE 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 during your next time of need. IMPORTANT! If you do not plan to use the generator for a long period of time, we recommend DISCON- NECTING the negative battery cable from the battery to protect the battery from losing charge.

  • Page 39: Transportation & Storage

    Do not obstruct any ventilation openings. Follow the procedures below for properly storing your generator. TIP: Your WEN generator is compatible with We highly recommend running your generator once a month for WEN 56409 and WEN GNC875 Generator 20 to 30 minutes.

  • Page 40: Troubleshooting Guide

    13. Turn OFF propane tank. Disconnect hose from propane fitting. 13. Onboard propane regulator is stuck. Contact WEN customer service for assistance. 14. Move the generator to an open area with fresh air. Wait a few 14. CO levels are too high.
  • Page 41 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 customer service at 1-800-232-1195 (M-F 8-5 CST), or email techsupport@wenproducts.com. PROBLEM POSSIBLE CAUSE SOLUTION 1.

  • Page 42: Wiring Diagram

    WIRING DIAGRAM...

  • Page 43: Exploded View & Parts List

    Bolt, M6x16 Cylinder Body Shroud, GN875i-0209 GN875i-0109 Nut, M10 Secondary 1-10 GN400i-0910 Bolt, M5x16 Cylinder Head Cover 2-10 DF875iX-0210 Gasket 1-11 DF875iX-0111 Trigger Cylinder Head Cover 1-12 DF875iX-0112 Ignition Coil 2-11 DF875iX-0211 Bolt (M6x14) 1-13 GN400i-0111 Bolt, M5x20 2-12 DF875iX-0212...
  • Page 44 Qty. GN875i-0301 Crankcase Cover Gasket GN875i-0401 Balance Shaft Assembly GN875i-0302 Bearing, 6202P6 Connecting Rod GN875i-0402 Oil Dipstick Assembly GN625i-0304 Subassembly DF875iX-0403 Piston GN875i-0304 GN875i-0404 Piston Pin GN875i-0305 Crankcase Cover GN875i-0405 Piston Pin Clip GN875i-0306 Bolt, M8x40 GN875i-0406 Piston Ring Set...
  • Page 45 Flat Washer, 6mm GN400i-0703 Clip ASSEMBLY 8 - CARBURETOR Part No. Description Qty. Part No. Description Qty. Carburetor Insulator GN875i-0805 Carburetor Gasket DF875iX-0801 Gasket Carburetor Insulator DF875iX-0806 GN625i-0901 Air Filter Gasket Plate DF875iX-0803 Carburetor Assembly GN625i-0907 Hose Clamp DF875iX-0804 Fuel Tube...
  • Page 46 EXPLODED VIEW & PARTS LIST ASSEMBLY 9 - FLYWHEEL, IMPELLER, ASSEMBLY 10 - AIR FILTER STARTER PULLEY Part No. Description Qty. 10-1 DF875iX-1001 Air Filter Assembly Part No. Description Qty. 10-2 56200-0506 Flanged Hex Nut, M6 DF875iX-0901 Rotor 10-3 GN875i-1003...
  • Page 47 Hose Clamp A 12-7 GN400i-1202 Fuel Tank Cap 12-17 GN625i-1317 Fuel Tank Outlet 12-8 GN875i-1208 Fuel Strainer 12-18 GN625i-1318 Hose Clamp B 12-9 GN400i-1204 Fuel Gauge Assembly 12-19 GN625i-1319 Rubber Cover 12-10 GN625i-1310 Fuel Tank Chain Clip 12-20 DF875iX-1220 Fuel Tube...
  • Page 48 GN875i-1318 Battery Clamp 33 33 13-19 56200-1202 Bolt, M6x12 13-20 GN875i-1320 Anode Wire 13-21 GN875i-1321 Cathode Wire 13-22 DF875iX-1322 Fuel Selector Switch 36 37 Fuel Selector Switch 13-23 DF875iX-1323 Handle 13-24 DF875iX-1324 LPG Hose 1 Secondary LPG 13-25 DF875iX-1325 Regulator...
  • Page 49 EXPLODED VIEW & PARTS LIST ASSEMBLY 14 - CONTROL PANEL 10 10 Part No. Description Qty. Part No. Description Qty. DF875iX- Control Panel NEMA TT-30R Outlet 14-1 14-19 GN625i-1518 1401ASM Assembly Cover 14-2 GN625i-1502 Bolt, M6x16 14-20 56380i-1422 ECO-Mode Switch...
  • Page 50 EXPLODED VIEW & PARTS LIST ASSEMBLY 15 - WHEEL AND HANDLE Part No. Description Qty. Part No. Description Qty. Handle Tube 15-10 GN625i-1610 Axle 15-1 GN625i-1601 Assembly 15-11 GN625i-1611 Wheel 15-2 GN625i-1602 Handle Sleeve 15-12 GN625i-1612 Bolt, M6x40 15-3 GN625i-1603 R-clip 15-13 56200-0506...

  • Page 51: Warranty Statement

    Contact techsupport@wenproducts.com or 1-800-232-1195 with the following information to make arrangements: your shipping address, phone number, serial number, required part numbers, and proof of purchase. Damaged or defective parts and products may need to be sent to WEN before the replacements can be shipped out.
  • Page 52 THANKS FOR REMEMBERING V. 2022.03.22...

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