Wen GN875iX Instruction Manual
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Wen GN875iX Instruction Manual

Inverter generator 8750-watt
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MODEL GN875iX
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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Summary of Contents for Wen GN875iX

  • 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 GN875iX Surge (Starting) Wattage 8750W Rated (Running) Wattage 7000W Rated Voltage 120V / 240V AC Phase Single Frequency 60 Hz Product Weight With Wheel Kit 136.7 lbs Product Weight Without Wheel Kit 133 lbs Product Dimensions With Wheel Kit 26.8 in.

  • Page 4: Introduction

    INTRODUCTION Thanks for purchasing the WEN 8750-Watt Inverter Generator. Refer to the illustration below for the location of the serial number on the specifications label. Record the generator information in the spaces provided below. If assis- tance 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

    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. TO MAXIMIZE THE LIFESPAN OF YOUR GENERATOR: We recommend running your generator at least once a month for 20 to 30 minutes.

  • 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. Eco-Mode Switch Measures the accumulation of poisonous CO gas while the Flip this switch to ON to increase fuel economy and generator is running. If the level of CO gas gets too high, runtime when the load is below 5250W (75% load).

  • Page 12: Assembly & Adjustments

    ASSEMBLY & ADJUSTMENTS HIGH ALTITUDE OPERATION ABOVE 3000 FEET WARNING! To prevent serious injury from The fuel system on this generator may be affected by opera- fire, follow the kit installation procedures in a tion at high altitudes. Proper operation can be ensured by well-ventilated area away from ignition sources.
  • 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 2. If the tank is empty add gasoline to the gas tank. See above section, "To Add Gasoline". STEP 3 - CONNECT THE BATTERY WARNING! Use only genuine WEN batteries with your generator (part no. 56380i-1304). Use of other batteries may induce premature product failure and could pose a safety risk.
  • Page 17 ABOUT THE BATTERY (CONT.) 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 18: 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 19 START position too long can damage fore attempting to start the generator again. If prob- the starter motor. If the engine does not start after lems persist, please contact WEN customer service multiple attempts, please consult the troubleshooting (see front page of manual).

  • Page 20: Using The Generator

    USING YOUR 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 21 USING YOUR 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 22 USING YOUR 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 23 USING YOUR 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 24 • 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...

  • Page 25: 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 26: 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 27 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 28 MAINTENANCE DRAINING THE CARBURETOR Fig. 13 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 29 MAINTENANCE INSPECTING/CLEANING THE SPARK ARRESTOR Fig. 15 Inspect and clean the spark arrestor every 100 hours of operation (refer to Table 4). The spark arrestor is located outside the muffler, which gets very hot during operation. Allow the engine to cool completely before servicing the spark arrestor.
  • Page 30 MAINTENANCE 5. Measure the plug gap with a spark plug gap gauge. The Fig. 16 gap should be 0.7 to 0.8 mm (0.028-0.031 in). Carefully adjust the gap if necessary. See Fig. 16. 0.7 - 0.8mm 6. Screw the spark plug back into the spark plug hole us- ing the spark plug wrench.
  • Page 31 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 32: Transportation & Storage

    TIP: Your WEN generator is compatible We highly recommend running your generator once a month for with the WEN 56409 Generator Cover (not 20 to 30 minutes. Plug in a small load in to ensure there is proper included). It is available for purchase at power output.

  • Page 33: Troubleshooting Guide

    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 34 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 35: Wiring Diagram

    WIRING DIAGRAM...

  • Page 36: Exploded View & Parts List

    EXPLODED VIEW & PARTS LIST NOTE: Replacement parts can be purchased from wenproducts.com, or by calling our customer service at 1-(800) 232-1195, M-F 8-5 CST. Parts and accessories that wear down over the course of normal use are not covered by the two-year warranty. Not all parts may be available for purchase. ASSEMBLY 1 - CRANKCASE ASSEMBLY 2 - CYLINDER HEAD SUBASSEMBLY, SPARK PLUG...
  • Page 37 EXPLODED VIEW & PARTS LIST ASSEMBLY 3 - CRANKCASE COVER ASSEMBLY 4 - CRANKSHAFT, CONNECTING ROD Part No. Description Qty. Part No. Description 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...
  • Page 38 ASSEMBLY 8 - CARBURETOR Part No. Description Qty. Part No. Description Qty. Carburetor Insulator Carburetor Insulator GN875i-0801 GN875i-0806 Gasket Plate GN625i-0901 Air Filter Gasket GN625i-0907 Hose Clamp GN875i-0803 Carburetor Assembly GN875iX-0908 Fuel Tube 56200-0103 GN875i-0809 Rubber Bushing GN875i-0805 Carburetor Gasket...
  • Page 39 Air Filter Assembly Part No. Description Qty. 10-2 56200-0506 Nut, M6 10-1 GN875i-0901 Rotor 10-3 GN875i-1003 Air Filter Element 10-2 GN875iX-1002 Stator 10-3 GN625i-0214 Wiring Clamp ASSEMBLY 11 - MUFFLER ASSEMBLY 10-4 GN875i-0904 Bolt, M5x10 Flywheel Nut, 10-5 GN625i-1101 M16-1.5...
  • Page 40 EXPLODED VIEW & PARTS LIST ASSEMBLY 12 - FUEL TANK Part No. Description Qty. Part No. Description Qty. 12-1 GN625i-1301 Fuel Tank 12-10 GN625i-1310 Fuel Tank Chain Clip 12-2 56380i-1207 Fuel Tank Damper 12-11 GN400i-1205 Breather Valve 12-3 GN625i-1303 Bushing 12-12 GN875i-1212 Breather Hose 12-4...
  • Page 41 EXPLODED VIEW & PARTS LIST ASSEMBLY 13 - FRAME Part No. Description Qty. Part No. Description Qty. 13-1 GN875iX-1301 Frame Assembly Battery (Li-ion, 12V, 13-17 56380i-1304 1.6Ah) 13-2 GN625i-1402 Nut, M10-1.25 13-18 GN875i-1318 Battery Clamp 13-3 56310i-1404 Nut, M8 13-19...
  • Page 42 EXPLODED VIEW & PARTS LIST ASSEMBLY 14 - CONTROL PANEL Part No. Description Qty. Part No. Description Qty. Control Panel Screw & Washer, GN875iX-1401 14-1 14-6 GN625i-1506 Subassembly M5x10 14-2 GN625i-1502 Bolt, M6x16 14-7 GN625i-1507 Panel Seat 14-3 GN625i-1503 Bolt, M6x20...
  • Page 43 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 44: 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.

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