Spanning 807 pages, this JCB JS175W service manual PDF (OEM #9803/6550-1) breaks down the complete driveline, hydraulics, and cab structure for your JS175W Auto and JS175W excavator. You get detailed hydraulic schematics mapping the main control valve and drive circuits, complete wiring diagrams for the throttle control and auto boost pressure systems, and a full section of diagnostic error codes. Open to the transmission section for exploded views of the drive gearbox and step-by-step teardown procedures to fix any fault. Confirm your front axle differential holds exactly 18 liters before tightening down the wheel nuts to a firm 500 Nm. Machine downtime kills your profit margin. Grab this bookmarked download, open it on your tablet in the yard, and get the exact numbers to finish the repair.
What's Inside This Manual
| System | Pages | Key Topics |
|---|
| General Information | 4-37 | Introduction (Schematic Codes), Identifying Your Machine (Identification Plates), Torque Settings (Zinc Plated Fasteners and Dacromet Fasteners, Hydraulic Connections) |
| Care & Safety | 38-57 | Safety Notices, Maintenance Safety, Safety Decals |
| Routine Maintenance | 58-133 | Health and Safety, Service Schedules, Greasing, Electrical System, Fuel System, Hydraulic System, Front Axle |
| Body & Framework | 134-180 | Technical Data, Attachments, Basic Operation, Fault Finding, Service Procedures, Cab Structure |
| Electrics | 181-425 | Basic System Operations, Driver Controls and Switches, Operating Levers and Pedals, Circuit Symbols, Circuit Concepts, Engine Throttle Control, Auto Boost Pressure |
| Controls | 426-430 | Steering Column, Lever Lock, Drive Isolator, Slew Brake (100%), Park Brake, Axle Lock |
| Hydraulics | 431-738 | Technical Data, Main Control Valve, Basic System Operation, Introduction to Hydraulic Schematic Symbols, Circuit Descriptions, Servo Line, Drive |
| Transmission | 739-804 | Drive Gearbox, Dismantling and Assembly |
| Engine | 805-807 | Engine Throttle Control, Auto Boost Pressure, Engine Pre Heat (Glow Plugs), Engine Automatic Warm Up, Engine Automatic Idle, Engine Start/Stop |
Quick Reference Specifications
| Specification | Value | Page |
|---|
| All Models |
| Wheel Nut Torque | 500 Nm (369 lbf ft) | p. 87 |
| Tyre Pressure (10.0 x 20 - 14PR) | 6.5 bar (94 lbf/in2) | p. 139 |
| Air Conditioning Refrigerant (R-134a) | 1.415 Kg +/- 10g | p. 153 |
| JS175W and Variants |
| Engine Oil Capacity | 13.2 litres (2.9 UK gal) (3.5 US gal) | p. 74 |
| Hydraulic System Capacity | 142 litres (31.2 UK gal) (37.5 US gal) | p. 74 |
| Fuel Tank Capacity | 253 litres (55.6 UK gal) (66.7 US gal) | p. 74 |
| Front Axle Differential Capacity | 18 litres (3.9 UK gal) (4.7 US gal) | p. 74 |
| JS175W |
| Engine Bore | 105mm (4.13 in) | p. 807 |
| Engine Stroke | 125mm (4.92 in) | p. 807 |
| Engine Compression Pressure | 30 bar (441 lbf/in2) | p. 807 |
| Engine Valve Clearance (cold) Inlet | 0.40 mm (0.016 in) | p. 807 |
| Engine Max. Speed (No Load) | 2180 +/- 30 rev/min | p. 807 |
