Part of the Kubota Repair Manuals.
This Kubota workshop manual covers the GL6000, GL7000, GL9000 and GL11000 diesel generators, built around the Z482-E2B-SEC-2 and D722-E2B-SEC-2 engines. Its 165 pages are split between the engine and the generator, so you can service both halves of the unit from one PDF.The engine chapters give identification data, troubleshooting charts, full servicing specifications, tightening torques, and step by step checking and disassembly. The generator chapters cover the structure, automatic voltage regulator, emergency relay circuit, troubleshooting and servicing of the output side.Whether the engine will not start, the set makes no power, or output drifts under load, this manual gives the factory clearances, torque figures and test procedures to find and fix the fault. Download it as a PDF and reference it on any device in the field or the shop.
What's Inside This Kubota GL6000–GL11000 Series Manual
| System | Pages | Key Topics |
|---|---|---|
| General Information | - | Identification, Precaution, Handling Precautions for Electrical Parts and Wiring (Battery, Fuse, Connector, Handling of Circuit Tester), E2B Engine, Lubricants, Fuel and Coolant |
| General Check and Maintenance | - | Daily Check (Check Points of Initial 50 Hours), Check Points of Initial 50 Hours (100 Hours), Check Point of Every 50 Hours, Check Point of Every 100 Hours |
| Engine Mechanism | - | Engine Body (Half-Floating Head Cover), Wiring Diagram, Lubricating System, Cooling System, Fuel System |
| Engine Troubleshooting | - | Engine Does Not Start, Engine Revolution Is Not Smooth, Either White or Blue Exhaust Gas Is Observed, Either Black or Dark Gray Exhaust Gas Is Observed, Deficient Output |
| Engine Servicing Specifications | - | Engine Body (Cylinder Head Surface, Top Clearance, Compression Pressure, Valve Clearance, Valve Seat, Valve Face, Valve Recessing, Valve Stem to Valve Guide, Valve Timing, Valve Spring, Rocker Arm Shaft to Rocker Arm, Push Rod, Tappet to Tappet Guide Bore, Camshaft, Camshaft Journal to Cylinder Block Bore, Timing Gear, Idle Gear, Idle Gear Shaft to Idle Gear Bushing, Piston Pin Bore, Piston Ring Clearance, Piston Ring Gap, Connecting Rod, Piston Pin to Small End Bushing, Crankshaft, Crankshaft Journal to Crankshaft Bearing 1, Crankshaft Journal to Crankshaft Bearing 2) |
| Engine Tightening Torques | - | Tightening Torques for Special Use Screws, Bolt and Nut, Tightening Torques for General Use Screws |
| Engine Checking, Disassembling and Servicing | - | Checking and Adjusting (Engine Body, Lubricating System, Cooling System, Fuel System) |
| Generator Mechanism | - | Structure, Automatic Voltage Regulator, Emergency Relay Circuit (General, Instructions), Earth |
| Generator Troubleshooting | - | Evident Physical Defect, Generator, Voltmeter Indicates Normal Voltage But No Output Voltage Is Delivered |
| Generator Servicing Specification | - | Model GL6000, Model GL7000, Model GL9000, Model GL11000 |
| Generator Tightening Torques | - | Tightening Torques for Special Use Screws, Bolts and Nut, Tightening Torques for General Use Screws |
| Generator Checking, Disassembling and Servicing | - | Checking and Adjusting (Control Panel, Electrical System, Emergency Relay Activates), Disassembling and Assembling (External Components), Preparation (Generator) |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Cylinder head cover screw torque | 6.86 to 11.3 N-m (0.7 to 1.15 kgf.m, 5.1 to 8.3 ft-lbs) | p. 60 |
| Injection pipe retaining nut torque | 24.5 to 34.3 N-m (2.5 to 3.5 kgf.m, 18.1 to 25.3 ft-lbs) | p. 60 |
| Fuel filter element cleaning interval | Every 300 hours | p. 24 |
| Fuel filter element replacement interval | Every 400 hours | p. 24 |
| Air cleaner element cleaning interval | Every 100 hours | p. 24 |
| Air cleaner element replacement interval | Every 1 year or every 6th cleaning | p. 24 |
| Fan belt check interval | Every 50 hours | p. 24 |
| Fan belt replacement interval | Every 800 hours | p. 24 |
| Battery check interval | Every 50 hours | p. 24 |
| Battery replacement interval | Every 2 years | p. 24 |
| Fuse replacement (Burnt out 15A fuse) | Replace | p. 145 |
| Fuse replacement (Blown fuse for separate excitation unit) | Replace | p. 143 |
Kubota GL6000–GL11000 Series Common Problems This Manual Covers
Engine runs but no power output
When the engine runs normally but the set delivers no output, suspect rotor or stator damage, loose terminals or wiring faults. The generator troubleshooting charts walk through the checks.
Manual Section: Generator Troubleshooting p. 131Engine cranks but will not start
Fuel contamination, air in the fuel system, clogged lines or an injection pump fault stop the engine starting. This section lists the start failure causes.
Manual Section: Engine Troubleshooting p. 51Unstable or intermittent output
Output that drifts or drops out often comes from loose connections, damaged leads or poor grounding. The generator checking and servicing section covers the control panel and electrical checks.
Manual Section: Generator Checking, Disassembling and Servicing p. 141Overheating from belt or radiator neglect
A slack fan belt, low coolant or clogged radiator fins cause overheating. The maintenance section gives the belt tension and cooling checks and their intervals.
Manual Section: General Check and Maintenance p. 26Fuel contamination and injection trouble
Dirt or water in the fuel causes injection pump malfunction and rough running. This section covers the fuel system checking, disassembly and servicing.
Manual Section: Engine Checking, Disassembling and Servicing p. 62Recurring blown fuses and wiring faults
An incorrect fuse, a short or damaged wiring causes fuses to blow repeatedly. The wiring handling precautions explain safe checks of fuses and connectors.
Manual Section: General Information p. 14Frequently Asked Questions
Which generators does this manual cover?
It covers the Kubota GL6000, GL7000, GL9000 and GL11000 diesel generators, built on the Z482-E2B-SEC-2 and D722-E2B-SEC-2 engines, in one 165 page manual.
What is the cylinder head screw torque?
The engine tightening torques give a cylinder head screw torque of 37.3 to 42.2 N-m. The full torque table is in the Engine Tightening Torques section. p. 60
Does it cover the generator as well as the engine?
Yes. Alongside the engine chapters, the generator mechanism section covers the structure, automatic voltage regulator, emergency relay circuit and earth, plus separate generator troubleshooting and servicing. p. 122
What format is this manual in?
Instant PDF download. You get the full 165-page searchable Workshop Manual immediately after payment. Open it on your laptop, tablet, or phone right in the shop.
Am I able to print pages from this manual?
Absolutely. No DRM or copy protection. Print the whole manual or just the pages you need. Any home or office printer works.
Does this Kubota GL6000–GL11000 Series Workshop Manual have electrical diagrams?
Yes. You'll find full electrical schematics with wire routing diagrams, connector identification, and circuit descriptions.
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