Part of the JCB Repair Manuals.
Need the exact factory diagnostic data for your JCB excavator? This 407-page JCB 8055, 8065 service manual pdf (OEM #9803/9890-3) breaks down every track roller, hydraulic valve, and electrical circuit on your machine. Complete wiring diagrams and full hydraulic schematics are included to trace faults fast. Open to the hydraulics section for step-by-step rebuilds of the main relief valve, or check the troubleshooting charts to isolate servo hand controller issues. Lock down your track gearboxes using the dedicated metric Grade 10.9 fastener torque tables, and confirm the exact fuel pre-filter service intervals before firing up the engine. Stop relying on guesswork when your heavy equipment acts up. Download this bookmarked file directly to your tablet, tap the section you need, and get your excavator back in the dirt.
Other edition of this manual
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| Care and Safety | 38-57 | Safety Notices, Safety Check List, Safety Labels |
| Maintenance | 58-115 | Routine Maintenance, Service Schedules, Fluids, Lubricants and Capacities, Tools, Prepare the Machine for Maintenance, Cleaning the Machine, Checking for Damage |
| Attachments | 116-137 | Introduction, Mechanical Quickhitch, Connecting/Disconnecting Hydraulic Hoses, Buckets, Quickhitch Rockbreaker |
| Body and Framework | 138-165 | Service Procedures, Kingpost, Dipper, Bucket Ram Pivot and Linkage, Boom, Slew Ring |
| Electrics | 166-241 | Technical Data, Service Procedures, Alternator, Starter Motor, Schematic Circuits, Harness Data |
| Controls | 242-265 | Fault Finding, Servo Hand Controllers, Track Levers, Dozer Lever, Engine Throttle |
| Hydraulics | 266-365 | Technical Data, Basic System Operation, Service Procedures, Schematic Circuits, Fault Finding, Main Relief Valve, Pressure Maintenance Valve, Auxiliary Relief Valves |
| Gearboxes | 366-375 | Technical Data, Track Gearbox |
| Track and Running Gear | 376-401 | Tracks and Running Gear, Steel Track, Rubber Track, Track Guides, Track Rollers, Idler and Recoil Unit, Track Roller Metallic Face Seals, Driven Sprocket |
| Engine | 402-407 | General |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Standard Torque Settings tables | Table 2. Torque Settings - UNF Grade 'S' Fasteners, Table 3. Torque Settings - Metric Grade 8.8 Fasteners, Table 4. Metric Grade 10.9 Fasteners, Table 5. Metric Grade 12.9 Fasteners, Table 6. Torque Settings - Rivet Nut Bolts/Screws, Table 7. Torque Settings - Internal Hexagon Headed Cap Screws (Zinc), Table 8. Torque Settings - BSP Adaptors, Table 9. Torque Settings - SAE Connections, Table 10. BSP Hose - Torque Settings, Table 11. BSP Adaptors with Bonded Washers - Torque Settings, Table 12. BSP `Torque Stop' Hose - Torque Settings | p. 13 |
| Fuel Pre-Filter/Sedimenter Element service interval | Change | p. 70 |
| Primary Fuel Filter service interval | Change | p. 70 |
| Fuel Sedimenter service interval | Drain and Clean | p. 70 |
| Fuel Pre-Filter/Sedimenter Element replacement | Re-assemble new filter to bowl and refit to filter head | p. 106 |
| Fan belt deflection | 7mm (0.28 in) approx. for a finger force of 49 Nm (11 lbf, 5 kgf) approx. | p. 101 |
| Track Gearbox oil capacity (each) | 0.8 (0.18) Litres (UK Gal) | p. 73 |
| Track Gearbox oil type | JCB SAE 30 Engine Oil (Not Multigrade) | p. 73 |
| Air Cleaner Element (Dusty Conditions only) service interval | Change | p. 70 |
| Air Cleaner Outer Element service interval | Change | p. 70 |
| 8055 | ||
| Hydraulic System Tank Only capacity, 8055 | 55 (12) Litres (UK Gal) | p. 73 |
| 8065 | ||
| Hydraulic System Tank Only capacity, 8065 | 59 (12.98) Litres (UK Gal) | p. 73 |
