Servicing the E2B diesel generator series from cylinder head to AVR circuit requires accurate data. This 165-page Workshop Manual (OEM #9Y011-02691) covers the Kubota GL6000, GL7000, GL9000, and GL11000 models. It includes 10 pages of wiring diagrams, separate engine and generator troubleshooting charts covering over 11 fault conditions each, and 8 pages of factory clearance specs with tolerance bands for critical wear surfaces. Disassembly and rebuild procedures span more than 60 pages for both the engine and alternator. The maintenance schedule runs from the initial 50-hour check straight through to the 1,500-hour service interval.
What's Inside This Kubota GL6000–GL11000 Series Manual
| System | Pages | Key Topics |
|---|---|---|
| General Information | 14-25 | 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 | 26-45 | 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 | 46-50 | Engine Body (Half-Floating Head Cover), Wiring Diagram, Lubricating System, Cooling System, Fuel System |
| Engine Troubleshooting | 51-53 | 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 | 54-59 | 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 | 60-61 | Tightening Torques For Special Use Screws, Bolt And Nut, Tightening Torques For General Use Screws |
| Engine Checking, Disassembling and Servicing | 62-121 | Checking and Adjusting (Engine Body, Lubricating System, Cooling System, Fuel System) |
| Generator Mechanism | 122-130 | Structure, Automatic Voltage Regulator, Emergency Relay Circuit (General, Instructions), Earth |
| Generator Troubleshooting | 131-136 | Evident Physical Defect, Generator, Voltmeter Indicates Normal Voltage But No Output Voltage Is Delivered |
| Generator Servicing Specification | 137-138 | Model GL6000, Model GL7000, Model GL9000, Model GL11000 |
| Generator Tightening Torques | 139-140 | Tightening Torques For Special Use Screws, Bolts And Nut, Tightening Torques For General Use Screws |
| Generator Checking, Disassembling and Servicing | 141-165 | 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 50 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
Kubota GL6000 diesel generator overheating under heavy load and coolant spraying from the radiator p. 58
Test the radiator cap pressure falling time on page 58. Verify it takes 10 seconds or more for pressure to fall from 88 to 59 kPa (13 to 9 psi). Inspect the radiator fins for dirt blockage and thoroughly clean them with compressed air if necessary.
Manual Section: Engine Servicing SpecificationsEngine cranks normally but refuses to start after sitting idle for several months p. 49
Check the fuel injection pump opening pressure as detailed on page 49. Ensure the pressure reads between 13.73 and 14.71 MPa (1990 to 2133 psi). Drain any contaminated fuel from the tank, replace the fuel filter element, and bleed all trapped air from the lines.
Manual Section: Engine MechanismEngine runs rough and shuts down accompanied by loud squealing noise from the front p. 29
Measure the fan belt tension deflection as shown on page 29. Push the belt with 98 N (22 lbs) of force and verify the deflection is exactly 7.0 to 9.0 mm. Adjust the alternator bracket position to correct the tension, and replace the belt if damaged.
Manual Section: General Check and MaintenanceRepeated failed starting attempts draining battery and causing excessive wear on the starter motor p. 72
Test the battery voltage to confirm it holds more than 12 V as noted on page 72. Measure the glow plug resistance using a multimeter, verifying it reads approximately 0.9 ohms on page 75. Charge the battery fully before retrying, and replace any glow plug that reads open or far from 0.9 ohms.
Manual Section: Engine Checking, Disassembling and ServicingFrequently Asked Questions
How do I reset a Kubota GL7000 generator after an overload or fault?
To reset the generator after an overload or fault, set the circuit breaker to the ON position. If the circuit breaker trips off again, you must first identify and remove the cause of the overload or short circuit before attempting to set it to ON again.
What is the torque spec for the Kubota GL7000 head bolts?
The torque specification for the cylinder head screws (head bolts) on the Kubota GL7000 is 37.3 to 42.2 N-m. This is equivalent to 3.8 to 4.3 kgf-m or 27.5 to 31.1 ft-lbs. It is important to apply engine oil to their threads and seats before tightening.
How do I troubleshoot a Kubota GL series generator that won’t start?
If your Kubota GL series generator won't start, check several potential issues. These include ensuring the terminal cover is closed, replenishing fuel if low, bleeding air from the fuel system, cleaning clogged fuel hoses, adjusting incorrect injection timing, charging a discharged battery, repairing a malfunctioning starter, and connecting any disconnected wiring.
how to reset Kubota GL7000 overload
To reset the generator after an overload, you need to set the circuit breaker to the ON position. If the circuit breaker trips off again, you must first identify and remove the cause of the overload or short circuit before attempting to set it to ON again.
What format is this Kubota GL6000–GL11000 Series 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 Kubota GL6000–GL11000 Series 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.
Document Quality
This document is a scanned PDF, meaning the text is not selectable or searchable. All text appears crisp and clear, making it easy to read throughout the manual. Diagrams and illustrations, including both line drawings and photographs, are sharp and their labels are fully legible. The pages are clean with no noticeable scan artifacts, stains, marks, or skewed content. There are no notable blank or filler pages present in this manual.
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