Need the exact factory diagnostic procedures for your wheeled excavator? This 977-page JCB JS130W, JS145W, JS160W, and JS175W service manual PDF (OEM #9803/6590-4) completely breaks down all four variants, including the 4HK, 6HK, and 4JJ engines. You get complete access to high-quality wiring diagrams, full hydraulic schematics detailing the main control valve and pump regulators, and extensive engine error code charts. Open up the troubleshooting section to diagnose AMS system faults, or work through the maintenance schedules and exploded component views. Lock down the slew motor mounting bolts to exactly 290 Nm, and confirm your turntable bearing M16 bolts hit the 296 Nm tightening spec before sending the machine back to the dirt. Stop wasting shop hours on forum guesswork. Download this 977-page manual right to your tablet and start wrenching.
Complete the set for your JS130W, JS145W, JS160W & JS175W Wheeled Excavator
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What's Inside This Manual
| System | Pages | Key Topics |
|---|
| General Information | | About This Manual, Torque Settings, Service Tools, Service Consumables, Colour Coding |
| Care & Safety | | Safety Notices, Safety Check List, Safety Warnings, Safety Labels, Machine Modifications |
| Maintenance | | Service Schedules, Fluids/Lubricants/Capacities, Electrical System, Fuel System, Hydraulic System, Troubleshooting |
| Body & Framework | | Static Dimensions, Operating Weight, Tyre Pressures, Air Conditioning, Cab Structure, Cab Panels |
| Electrics | | Circuit Symbols, Schematic Diagram, Ams System, Engine Throttle Control, Warning Indicator Lamps, Harness Data |
| Controls | | Steering Column Dismantling, Steering Column Assembly |
| Hydraulics | | General Data, Circuit Descriptions, Main Control Valve, Hydraulic Pump/Regulator, Hydraulic Rams, Pressure Testing, Fault Finding |
| Transmission | | Front Axle, Rear Axle, Drive Gearbox, Propshafts, Power Track Rod |
| Engine | | Technical Data, Engine Error Codes, Fault Finding, Engine Components, Schematics |
Quick Reference Specifications
| Specification | Value | Page |
|---|
| JS130W, JS145W, JS160W, JS175W |
| Turntable Bearing (Undercarriage) Bolt Torque | Tightening Torque: 296/525 Nm (218/387 lbf ft) for M16/M20 bolts. Checking Torque: 265/470 Nm (195/345 lbf ft). | p. 111 |
| Slew Equipment Bolt Torque | Tightening Torque: 296/525 Nm (218/387 lbf ft) for M16/M20 bolts. Checking Torque: 275/470 Nm (203/347 lbf ft). | p. 111 |
| All Models |
| Slew Motor Mounting Bolts Torque | 290 Nm (29.5 Kgf m, 213 lbf ft) | p. 699 |
| BSP Adaptors Torque Range | 18.0 Nm (13.0 lbf ft) to 206.0 Nm (152.0 lbf ft) | p. 14 |
| SAE Connections Torque Range | 20.0 - 28.0 Nm (16.5 - 18.5 lbf ft) to 280.0 - 380.0 Nm (210.0 - 280.0 lbf ft) | p. 14 |
| Service Brake Type | Oil immersed multi-plate disc, positive retraction | p. 868 |
| Service Brake Friction Plates | 4 per pack | p. 868 |
| Pressure Test Adapter (1/4 in. BSP x Test Point) | Part No. 892/00255 | p. 26 |
| Pressure Test Adapter (3/8 in. BSP x Test Point) | Part No. 892/00256 | p. 26 |
| JS160W, JS175W |
| Bucket Piston Nut Torque | 4440 Nm (3274 lbf ft) | p. 525 |
| Bucket Grub Screw Torque | 31.5 +/- 5.9 Nm (23.3 +/- 4.4 lbf ft) | p. 525 |
![JCB JS145W, JS160W, JS20 MH, JS145W [T4F], JS160W [T4F] operator station component location diagram and control list.](https://youfixthis.com/wp-content/uploads/2026/06/jcb-js145w-to-mh-wheeled-excavator-operator-manual-9831-5150-controls-29-150x150.webp)
