Part of the Kubota Repair Manuals.
Kubota's KX36-3, KX41-3S, KX41-3V service manual PDF (OEM 97899-60860) takes all three excavators down to the last seal across 496 pages, from front attachment and undercarriage through the D902-E and D782-B engines to the electrical harness. Hydraulics take up nearly half the book: troubleshooting tables, pressure testing, and disassembly and reassembly work, backed by hydraulic schematics that trace each circuit from pump to cylinder. When a fault hides in the Kubota Intelligent Control System, the wiring diagrams and harness routing let you follow it wire by wire. Set P1 and P2 main relief at 20.6 MPa on a KX36-3 or 21.6 MPa on the other two, and torque track roller mounting bolts to 103 to 117.7 N·m. A wrong relief setting can cost you a pump. The PDF arrives bookmarked and text-searchable, so print the chapters you need and let them take the grease on the bench.
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| General | 5-34 | Body and Engine Identification Marks, Safety Precautions for Servicing |
| Machine Body | 35-64 | Front Attachment, Upper Structure, Undercarriage |
| Engine | 65-218 | Engine Accessories, Engine WSM D902-E, Engine WSM D782-B |
| Hydraulic System | 219-236 | Troubleshooting, Common Circuit, Swivel Performance, Traveling Performance, Electrical Components |
| Hydraulic Testing | 237-255 | Testing, Testing Instruments & Special Tools, Pump Flow, Pressure Measurement, Drain Measurement, Operating Speed |
| Hydraulic Specifications | 256-274 | Specifications, Pump Specifications, Relief Valve, Cylinder |
| Hydraulic Pump | 275-329 | Disassembling and Reassembling, Control Valve |
| Pilot Valve | 330-363 | Pilot Valve (PP Version), Pilot Valve (EU Version), Adaptor Installation, Pilot Hose Connection, Disassembling and Assembling |
| Swivel Motor and Rotary Joint | 364-393 | Swivel Motor, Rotary Joint, Cross-Sectional View of Swivel Motor, Hose Connection, Assembling of the Rotary Joint |
| Travel Motor and Cylinders | 394-420 | Travel Motor, Cylinder, Adaptor Installation, Disassembly and Reassembly |
| Unload Valve | 421-450 | Change Valve, TPSS Valve, Oil Tank, Table of Hoses |
| Electrical System | 451-496 | Troubleshooting, Kubota Intelligent Control System, Wire Harness Installation |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| KX36-3 (EU) | ||
| Bucket pin diameter | 35 mm | p. 24 |
| All Models | ||
| Tightening torque for mounting track roller | 103 ~ 117.7 N·m (10.5 ~ 12 kgf·m, 75.9 ~ 86.8 ft·lbf) | p. 64 |
| a1:Main relief valve of P1 (Bench set data) | 20.6 MPa (KX36-3), 21.6 MPa (KX41-3S/V EU), 21.6 MPa (KX41-3V PP) | p. 258 |
| a2:Main relief valve of P2 (Bench set data) | 20.6 MPa (KX36-3), 21.6 MPa (KX41-3S/V EU), 21.6 MPa (KX41-3V PP) | p. 258 |
| Theoretical discharge amount capacity p1 (KX36-3) | 7.2 cc/rev | p. 256 |
| Theoretical discharge amount capacity p1 (KX41-3S/V EU) | 7.5 cc/rev | p. 256 |
| Cylinder Head Screw Tightening Torque | 37.3 to 42.2 N·m | p. 99 |
| Connecting Rod Screw Tightening Torque | 26.5 to 30.4 N·m | p. 99 |
| Flywheel Screw Tightening Torque | 53.9 to 58.8 N·m | p. 99 |
| D902-E | ||
| Engine Oil Capacity (D902-E) | 3.7 L | p. 85 |
| Z602-E | ||
| Engine Oil Capacity (Z602-E) | 2.5 L | p. 85 |
| D782-B | ||
| Engine Oil Capacity (D782-B) | 3.1 L | p. 99 |
