Part of the Kubota Repair Manuals.
This Kubota Workshop Manual (code 97899-60730) is the factory service reference for the K008-3 and U10-3 mini excavators, covering the D722-EBH-3, D722-BH-3, and D722-BH-4 diesel engines. The 392-page PDF is organized into General, Machine body, Engine, Hydraulic system, and Electrical system parts, each split into mechanism and service sections.It walks through machine-body structure and undercarriage service, full engine mechanism and repair, the hydraulic circuit with pump, valve, and cylinder servicing, and the electrical system. You get identification data, maintenance intervals, tightening torques, clearances, and detailed disassembly and reassembly procedures.Owners and independent mechanics use it to tame over-fast hydraulics, service the tracks and filters, diagnose a no-start, or rebuild hydraulic components on a K008-3 or U10-3 with factory-correct specifications.
What's Inside This Kubota K008-3, U10-3 Manual
| System | Pages | Key Topics |
|---|---|---|
| I. General | - | Body, Engine, O-Ring, Oil Seal, Circlip, Roll Pin, Hose, Piping |
| Ii. Machine body(Mechanism Section) | - | Machine Body, Component Interchangeability, Machine Structure, Bucket, Control Linkage, Engine Mount, Under Carriage |
| Ii. Machine body(Service Section) | - | Machine Body, Front Attachment, Upper Structure, Under Carriage, Parts Weight, Water and Oil Quantity |
| Iii. Engine(Mechanism Section) | - | Engine Body, Lubricating System, Cooling System, Fuel System, Electrical System |
| Iii. Engine(Service Section) | - | Engine Mount, Engine Body, Lubricating System, Cooling System, Fuel System, Electrical System, Cylinder Head, Valves |
| Iv. Hydraulic system(Mechanism Section) | - | Main Pump, Pilot Pump, Control Valve, Pilot Valve, Swing Motor, Rotary Joint, Travel Motor, Hydraulic Circuit |
| Iv. Hydraulic system(Service Section) | - | Pump System, Relief Valves, Swivel System, Traveling System, Cylinder System, Pilot Valve, Swivel Joint, Hydraulic Hose |
| V. Electrical system(Service Section) | - | Wireharness, Electric Wiring, Electric System, Starter, Panel, Horn, Fuel Pump, Working Light |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| K008-3, U10-3 | ||
| Sprocket fixing bolt tightening torque | 48.0 ~ 56.0 N·m (4.9 ~ 5.7 kgf·m) | p. 331 |
| K008-3 | ||
| Track roller bolt tightening torque | 78.0~90.0 N·m (7.9~9.2 kgf·m) | p. 94 |
| U10-3 | ||
| G 1/4 adaptors tightening torque | 24.5~29.4 N·m (2.5 ~ 3.0 kgf·m) | p. 294 |
| G 3/8 adaptors tightening torque | 37.2~42.1 N·m (3.8 ~ 4.3 kgf·m) | p. 294 |
| All Models | ||
| Return Filter replacement interval (Normal excavator work) | every 500 Hrs. | p. 31 |
| Return Filter replacement interval (20%, 40%, 60% breaker work) | every 300 Hrs. | p. 31 |
| Fuel filter cleaning interval | Every 200 hrs | p. 31 |
| Engine oil filter cartridge replacement interval (Initial) | 50 Hrs (Intial) | p. 145 |
| Engine oil filter cartridge replacement interval (101 mm oil pan depth) | 150 Hrs | p. 145 |
| Air filter element changing interval | every 1000 hrs | p. 31 |
| Battery type | 44B19R | p. 104 |
Kubota K008-3, U10-3 Common Problems This Manual Covers
Hydraulics feel too fast and jumpy
Owners describe travel and controls that feel like a go-cart, making the machine hard to control. The Hydraulic system service section covers the valves and flow regulation needed to diagnose the fault.
Manual Section: IV. Hydraulic system(Service section) p. 258Engine damage after a tip-over
Running the excavator tipped over can cause oil starvation and internal engine damage. The Engine service section provides the checks, specifications, and repair steps to assess and rebuild the engine.
Manual Section: III. Engine(Service section) p. 130Machine will not start
A no-start after basic checks can be the battery, starter, a blown fuse, or loose wiring. The Electrical system service section gives the wiring and component checks to trace the cause.
Manual Section: V. Electrical system(Service section) p. 360Overheating or unusual noise
Overheating or strange noises during operation can signal low coolant, restricted airflow, or wear. The Engine mechanism section explains the structure and function to guide inspection.
Manual Section: III. Engine(Mechanism section) p. 100Hydraulic leaks or lost performance
Worn seals, damaged hoses, or loose fittings cause leaks and a persistent loss of hydraulic performance. The Hydraulic system mechanism section details the circuit so the source can be located.
Manual Section: IV. Hydraulic system(Mechanism section) p. 200Track tension and undercarriage service
Track components need periodic tensioning and service to keep the undercarriage running true. The Machine body service section covers the track, roller, and sprocket hardware with tightening torques.
Manual Section: II. Machine body(Service section) p. 48Frequently Asked Questions
Which excavators and engines does this manual cover?
It is the workshop manual for the Kubota K008-3 and U10-3 mini excavators, covering the D722-EBH-3, D722-BH-3, and D722-BH-4 diesel engines.
Does it include torque specs for hydraulic fittings?
Yes. The Hydraulic system service section lists fitting torques such as 24.5 to 29.4 N.m for G 1/4 adaptors and 37.2 to 42.1 N.m for G 3/8 adaptors. p. 258
What service intervals does it list?
The General section gives intervals such as a hydraulic oil change every 1000 hours, a return filter change every 500 hours, and fuel filter cleaning every 200 hours. p. 5
Does it include battery and starter specs?
Yes. The Electrical system service section lists a 44B19R battery, a normal voltage higher than 10.5 V, and a 12V 0.95 kW starter motor. p. 360
How will I receive this Kubota K008-3 Workshop Manual?
Download is instant. The full 392-page searchable Workshop Manual is yours immediately after payment, ready to open on a laptop, tablet, or phone right in the shop.
Does this Kubota K008-3 manual allow printing?
No restrictions at all. Print individual pages, full chapters, or the entire manual. The PDF is completely unlocked.
Does this Kubota K008-3 manual show the hydraulic circuits?
Full hydraulic system diagrams are included, covering circuits, valve locations, and hydraulic component specs for the Kubota K008-3, U10-3.
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