Getting a broken excavator back on the job site starts with the right specs. All 316 pages of this JCB JS110, JS130, JS150LC Service Manual PDF (OEM #9803/6100) focus on giving you exactly that. Open this factory guide to find complete hydraulic schematics, detailed electrical circuit diagrams, and step-by-step track gearbox dismantling procedures. You get everything required for heavy line work, including full troubleshooting charts for the machine controls and complete torque tables to properly rebuild the undercarriage. Verify your piston-to-bore clearance stays within the 0.06 mm allowable limit before locking down those track gearbox mounting bolts to exactly 267-311 Nm. A dead machine eats into your profit margin. Download this bookmarked digital file, pull it up on your shop laptop, and start turning wrenches with confidence.
Complete the set for your JS110, JS130, JS150LC
- Operator Manual: JCB JS130–JS460 Series Tracked Excavator Operator Manual
- Operator Manual: JCB JS110–JS330 Series Tracked Excavator Operator Manual
- Operator Manual: JCB JS115–JS235 Series Excavator Operator Manual
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| General Information | 1-18 | Machine Identification, Torque Settings, Service Tools, Sealing and Retaining Compounds |
| Care & Safety | 19-25 | Safety Notices, General Safety, Operating Safety, Maintenance Safety |
| Optional Equipment | 58-59 | Rockbreaker, Calibrating the Engine Speed Control |
| Electrics | 60-79 | Technical Data Electrics, Engine Electrics Batteries, Systems Control Monitor, Circuit Diagram Electrics JS110, 130, Circuit Diagram Electrics Js 150 |
| Schematic Hydraulic Circuit | 81-91 | Technical Data |
| Fault Finding JS150LC | 92-101 | Fault Finding Js 110, 130 |
| Pressure Testing JS150LC | 102-112 | Pressure Testing Js 110, 130 |
| Hydraulic Pump Dismantling and Assembly | 113-144 | Hydraulic Pump, Sppc Valve, Servo Pump Relief Valve, Cylinder Block, Piston Assembly, Servo Pump Assembly, Regulator Cover, Damper Piston |
| Control Valve Dismantling and Assembly | 145-160 | Control Valve, Swing Side Control Valve, Main Relief Valve, Auxiliary Relief Valve, Low Pressure Relief Valve, Rotary Coupling |
| Swing Motor Dismantling and Assembly | 161-190 | Rotary Coupling Dismantling and Assembly |
| Servo Hand Control Valves Dismantling and Assembly | 191-200 | Servo Hand Control Valves, Rams |
| Rams Dismantling and Assembly | 201-206 | Boom, Dipper and Bucket Rams, Hook Spanners, Torque Settings (JS110), Torque Settings (JS130), Torque Settings (JS150LC), Ram Piston Head Nut |
| Transmission | 207-278 | Track Gearbox Removal and Replacement, Track Gearbox Dismantling and Assembly Js 110/130, Track Gearbox Dismantling and Assembly Js 150LC |
| Brakes | 279-280 | Track Brakes Pressure Testing, Track Brakes Dismantling and Assembly, Swing Brakes Dismantling and Assembly |
| Track & Running Gear | 281-312 | Idler Wheel and Recoil Unit, Grease Cylinder, Drive Sprocket, Top Roller, Bottom Roller |
| Engine | 313-316 | Technical Data |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Track gearbox mounting bolts torque | 267-311 Nm (197-230 lbf ft) | p. 213 |
| Piston to bore clearance (allowable) | 0.06 mm (0.02 in) | p. 224 |
| Shoe/ball backlash (allowable) | 0.4 mm (0.02 in) | p. 125 |
| Control Valve mounting bolts torque | 167 to 177 Nm (123 to 132.2 lbf. ft.) | p. 145 |
| Main Relief Valve plug 2 into cap 1 torque | 78.5 to 88.3 Nm (57.9 to 65.1 lbf. ft.) | p. 155 |
| Electrolyte level above plates | 6mm (0.25 inch) | p. 33 |
| Battery minimum voltage during high rate discharge test | 9 volts for 10 - 15 seconds | p. 62 |
| Insufficient swing motor torque (diagnostic action) | apply servo pressure of 19.6 bar (284 lbf/in2) to the brake release port. Try to rotate shaft with a torque of approximately 4.8 - 9.8 Nm (3.6 - 7.2 ft. lbs.) | p. 95 |
| Hydraulic pump output low / pressure does not increase (diagnostic action) | Check hydraulic pump and control valve. Renew as required. | p. 92 |
| M6 Bolt Torque (Strength Grade 8.8) | 8.04 Nm (5.9 lbf ft) | p. 4 |
| Engine Oil Capacity | 13.8 litres (3 UK gal) | p. 27 |
| Track Gearbox Oil Capacity | 2 x 2.5 litres (2 x 0.55 UK gal) | p. 27 |












