UST GG7500N Series Owner's Manual
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UST GG7500N Series Owner's Manual

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Owner s Manual
GG7500N Series Gasoline Generators
Do Not Return To Store
One year or 60 hours Limited Warranty (see page23)
For customer service or warranty information call toll free
866 797 2738
Read carefully before attempting to assemble, install, operate or maintain the product described. Protect
yourself and others by observing all safety information. Failure to comply with the user , s manual
could result in personal injury and/or property damage! retain the user ,s manual for future
reference.call toll free number 866 797 2738 for parts and service.
DISCLAIMER: All pictures may not be identical to product inside box.
Distributed by
Fullerton, CA 92833

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FRANK ESCOBAR
April 13, 2025

what kind of carburetor does this have?

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1 comments:
Mr. Anderson
April 13, 2025

The UST GG7500N Series uses a carburetor assembly with the part number QJ182QDP.10.01.

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Summary of Contents for UST GG7500N Series

  • Page 1 Owner s Manual GG7500N Series Gasoline Generators Do Not Return To Store One year or 60 hours Limited Warranty (see page23) For customer service or warranty information call toll free 866 797 2738 Read carefully before attempting to assemble, install, operate or maintain the product described. Protect yourself and others by observing all safety information.
  • Page 3 SAFETY ALERT SYMBOL: Indicates danger, warning, or caution. Attention is required in order to avoid serious personal injury. The signal word (DANGER, WARNING, or CAUTION) is used with the alert symbol to alert you to special instruction about a particular operation that may be hazardous if pe rformed incorrectly or carelessly.

  • Page 4: Table Of Contents

    CONTENTS 1.SAFETY 2.COMPONENT IDENTIFICATION 3.PRE-OPERATION CHECK LIST 4.STARTING THE ENGINE 5.GENERATOR USE 6.STOPPING THE ENGINE 7.MAINTENANCE 8.STORAGE 9.TROUBLESHOOTING 10.WIRING DIAGRAM 11.SPECIFICATIONS 12.WHEELKIT 13.PARTS LIST AND DIAGRAM 13.1 CRANKCASE ASSY. 13.2 CYLINDER HEAD ASSY. 13.3 CAMSHAFT ASSY. 13.4 CRANKSHAFT ASSY. 13.5 CRANKSHAFT ASSY. & PISTON 13.6 CENTRIFUGAL TIMING IMPLEMENT ASSY.

  • Page 5: Safety

    1. SAFETY 1.1 SAFETY LABELS Using a generator indoors CAN KILL YOU IN MINUTES. Generator exhaust contains carbon monoxide. This is a poison you cannot see or smell. NEVER use inside a home Only use OUTSIDE and or garage, EVEN IF doors far away from windows, and windows are open.
  • Page 6 1.2 GENERATOR SAFETY DO NOT USE INSIDE A HOUSE OR ANY ENCLOSED AREA. DO NOT LEAVE THE GENERATOR EXPOSED TO RAIN, SNOW OR SLEET. IF THE WORKING PARTS OF THE GENERATOR GET WET IT WILL CAUSE THE GENERATOR TO FAIL. EXCESSIVE MOISTURE DAMAGES THE ROTOR AND STATOR OF THE GENERATOR.

  • Page 7: Component Identification

    KEEP FLAMMABLE MATERIAL AT LEAST 1m(3FT).AWAY NO SMOKING. STOP ENGINE. DO NOT SPILL. BEFORE REFUELING 2.COMPONENT IDENTIFICATION 1 FUEL TANK CAP 2 FUEL TANK 3 FUEL GAUGE 4 ENGINE SWITCH 5 DC PROTECTOR 6 DC TERMINALS 7 HOUR METER 8 VOLTMETER 9 CIRCUIT BREAKER 10 HANDRAIL 11 DOUBLE SOCKET...

  • Page 8: Pre-Operation Check List

    3.PRE-OPERATION CHECK WARNING: Warranty and Service Questions ? Missing or Damaged parts Call 866 797 2738 - 4 -...

  • Page 9: Starting The Engine

    3. AIR CLEANER 1.Unsnap the air cleaner cover springs,and remove the air cleaner cover 2.Check the air cleaner element to be sure it is clean and in good condition. 3.If it is dirty,remove and clean (1)Wash in solvent 4.Reinstall the air cleaner element the element.

  • Page 10: Generator Use

    5.Pull the starter grip lightly until resistance is felt then pull briskly. 6.Push the choke rod to the OPEN position Warning:Do not allow the starter grip to snap as the engine warms up. back against the engine. Return it gently. 5.GENERATOR USE To keep the generator always in top mechanical and electrical condition, observe the following: WARNING...
  • Page 11 3.When two or more pieces of apparatus are connected to your generator, turn them on beginning with the one drawing higher current when starting. A C A P P L I C A T I O N 1.Start the engine 2.Make sure that the needle on the voltmeter indicates the voltage.

  • Page 12: Stopping The Engine

    DC APPLICATION The DC terminals may be used for charging 12V automotive-type batteries only 1.Connect the charging cables to the battery terminal. 2.Start the engine and charge the battery NOTE: An overloaded DC circuit will trip the DC circuit breaker (push button comes out) If this happens.

  • Page 13: Maintenance

    7.MAINTENANCE (1):These items shoule be serviced by a dealer. (2):Every 3 years Change Check-Readjust Check Clean SEE page First month Every 3 months Every 6 months Every year Engine Air cleaner Fuel strainer Battery fluid level Spark plug ( ) 1 Valve Clearance ( ) 1 Combustion...

  • Page 14: Storage

    2.AIR CLEANER(See 4 page) 3.SPARK PLUG TYPE:F7RTC(NGK-BPR6ES) 1.Remove the spark plug cap. 2.Remove the spark plug. 0.7~0.8mm(0.028~0.031in) 5.Reinstall the spark 4.Measure the gap. 3.Clean the deposit. plug and plug cap. 4.FUEL STRAINER 1.Turn the fuel valve 2.Clean the sediment to the OFF position cup and fuel filter and remove the se screen.

  • Page 15: Troubleshooting

    9.TROUBLE SHOOTING 9.1 ENGINE DOES NOT START: 1.Turn on the engine switch. 2.Check fuel. 3.Check oil. 5.Check spark. 4.Remove spark plug. 9.2 NO ELECTRICITY: Check AC circuit breaker 9.3 LIGHTS FLICKERING 1. Check for loose connections 2. Check for loose brushes and clean commutator Idle speed 3.

  • Page 16: Wiring Diagram

    In case long term storage generator has no output when started, please disconnect all appliances and prod the ARM to increase the throttle until the volt-meter indicates voltage 10.WIRING DIAGRAM CIRCUIT AC OUT BREAKER VOLT METER CIRCUIT BREAKER GROUND TERMINAL DIODE DIODE DC PROTECTER...

  • Page 17: Specifications

    11.SPECIFICATIONS Package(LxWxH)(in) 27.16 21.26 22.05(690 540 560mm) Net weight(Ibs) 156.5(71kg) Model GG7500N Type Single phase, AVR Rated voltage(V) 120/240 Rated frequency(Hz) Rated current(A) 50/25 Rated power(kW) Surge power(kW) Power factor(cos( )) DC rated voltage(V) DC rated current(A) Safety device N.F.B Engine JF182FPH-2 Air-cppled single cylinder.

  • Page 18: Wheelkit

    12.WHEEL KIT 1.Install the two wheels on the generator using two bolts . 2.Install the crutches on the under frame. 2.Install the handrails on the right frame. HANDRAILS WHEELS BOLTS CRUTCHES 13.PARTS LIST AND DIAGRAM 13.1 CRANKCASE ASSY PARTS NO. DESCRIPTION Buse, locating QJ182QDP.01-11...

  • Page 19: Cylinder Head Assy

    13.2 CYLINDER HEAD ASSY PARTS NO. DESCRIPTION Cylinder Head Assy QJ182QDP.02.01 Bolt, Cylinder Head QJ182QDP.02-01 Cover Assy QJ182QDP.02.02 Spacer, Seal QJ182QDP.02-03 Clamp QJ182QDP.02-04 QJ182QDP.02-02 Bolt Spacer Assy QJ182QDP.02.03 Bolt, Intake Pipe QJ182QDP.02-05 Cowling QJ182QDP.02-06 GB5787-88 Bolt M6 12 Spacer, Intake Pipe QJ182QDP.02-07 Spark Plug(NGK-BPR6ES) QJ182QDP.02.04...

  • Page 20: Camshaft Assy

    13.3 CAMSHAFT ASSY PARTS NO. DESCRIPTION QJ182QDP.03-12 Exhaust valve QJ182QDP.03-11 Lower retainer Valve spring QJ182QDP.03-05 Exhaust valve spring retainer QJ182QDP.03-08 QJ182QDP.03-09 Valve rotator QJ182QDP.03-04 Pivot bolt QJ182QDP.03-06 Valve rocker arm Rocker arm pivot QJ182QDP.03-07 Pivot adjusting nut QJ182QDP.03-11 Intake valve spring retainer QJ182QDP.03-10 QJ182QDP.03.02 Push rod...

  • Page 21: Crankshaft Assy & Piston

    13.5 CRANKSHAFT ASSY & PISTON PARTS NO. DESCRIPTION QJ182QDP.05-01 PISTON QJ182QDP.05-02 RING 1ST QJ182QDP.05-03 RING 2ND QJ182QDP.05.01 RING SET OIL PIN, PISTON QJ182QDP.05-04 QJ182QDP.05-05 CIRCLIP QJ182QDP.05.02 CONNECTING ROD ASSY QJ182QDP.05-02-01 CONNECTING ROD QJ182QDP.05-02-02 CONNECTIONG ROD CAP QJ182QDP.05-02-03 CONNECTING ROD BOLT 13.6 CENTRIFUGAL TIMING IMPLEMENT ASSY PARTS NO.

  • Page 22: Starter Assy

    13.8 STARTER ASSY PARTS NO. DESCRIPTION QJ182QDP.08.01-10 Handle Pull Rope QJ182QDP.08.01-11 Clockwork Spring QJ182QDP.08.01-09 Rotary Table QJ182QDP.08.01-03 Spring, Return QJ182QDP.08.01-05 QJ182QDP.08.01-07 Screw GB5789-86 Bolt M6x12 QJ182QDP.08-01 Starter Canister QJ182QDP.08-02 Fan Wheel Cowling Assy, cylinder QJ182QDP.08.01-01 QJ182QDP.08.01-08 Guide Pan Clump QJ182QDP.08.01-04 QJ182QDP.08.01-06 Press Reed QJ182QDP.08.01-02...

  • Page 23: Air Cleaner Assy

    13.11 CARBURETOR ASSY PARTS NO. DESCRIPTION Air Cleaner Assy QJ182QDP.11 Clip, Fixup QJ182QDP.11-6 Clip, Fixup QJ182QDP.11-7 QJ182QDP./11-8 Air Cleaner Cover GB6177-2000 NUT M5 Core, Filtrate QJ182QDP.11-9 QJ182QDP.11-3 Hole Board Seal Gasket, QJ182QDP.11-4 Below Shell, Air Cleaner QJ182QDP.11-5 QJ182QDP.11-2 Air Cleaner GB6177-2000 NUT M6 13.12 CARBURETOR ASSY...

  • Page 24: Generator

    13.13 GENERATOR CODE DESCRIPTION GB/T5787-86 Bolt M5*12 Right Cover QJ6500.03-04 QJ6000.03.04 GB/T5789-86 Bolt M5*20 QJ6500.03-03 Connector GB/T5789-86 Bolt M5*12 QJ6500.03.03 Rectifier GB/T5789-86 Bolt M10*250*1.25 Brush Equipment QJ6000.03.01 QJ6000.03-02 Motor Shell Rotor Assy QJ6500.03.01 QJ6500.03-06 Motor cover QJ6000.03.03.01 BEARING, needle QJ6000.03.03-06 Carbon Brush Ring QJ6000.03.03 Stator...

  • Page 25: Panel Assy

    13.15 PANEL ASSY CODE DESCRIPTION QTY. KE6600D.02.01A Panel KE6600D.02.02A Cable QJ6500D.01.04 Rectifier Assy. 4A GB/T818-85 Screw M3*12 GB/T923-88 Nut M6 Nut M6 GB/T6170-86 4 5 6 GB/T5789-86 Bolt M6*16 QJ6500.02.05 DC Terminal GB/T818-85 Screw M3*12 QJ6500.02.04 DC Protector 10A QJ6500D.01.04 Hour Meter GB/T6170-2000 Nut M3...

  • Page 26: Frame Assy

    13.18 FRAME ASSY CODE DESCRIPTION QTY. Frame Jointing Assy KE6600D.06.01A Shockproof Big Mounting Feet QJ6000.08.02 Shockproof Small Mounting Feet QJ6000.08.03 GB/T6177.1-2000 Nut M8 GB/T6177.1-2000 Nut M10*1.25 GB/T5789-86 Bolt M6*10 KE6600D.06-02 Frame Cover KE6600D.06-01 Frame Cover 13.19 Accessories CODE DESCRIPTION QTY. QJ6500D.04-06 Wheel Axis Bolt QJ6500D.04.02...

  • Page 27: Parts Replacement Limited Warranty

    - 23 -...

  • Page 28: Product Registration Card

    PRODUCT REGISTRATION CARD For more efficient customer service, please fill out the information below and mail to International Merchandis- ing Service,Inc Purchase Date Engine Serial No. Model No. Purchased from: [ ]Retail location [ ] Private Consumer [ ]Other Name: Location Address: Purchase Price: Telephone w/ area code:...

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