Part of the JCB Repair Manuals.
This 446-page JCB 2D, 2DS, 3, 3C, 3CS, 3D, and 700 Excavator Loader Service Manual (OEM #9803/3200) is dedicated to keeping your heavy equipment running strong, serving as the definitive JCB 3 service manual pdf for your shop. It holds complete hydraulic schematics for the Hamworthy loader valves, detailed electrical wiring diagrams for the alternator circuits, and dedicated troubleshooting procedures for the synchromesh transmission. Expect clear exploded views and step-by-step teardown instructions covering everything from the slewing actuator to the fuel injection pump. Swap out the engine fuel filter element every 400 hours and lock down the front axle wheel nuts to exactly 407 Nm. Every hour in the shop costs money. Get the factory answer on the first try. Bookmarked for quick navigation, this digital format opens instantly on your phone or tablet so you can start wrenching.
Complete the set for your 2D & variants
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| Care & Safety | 6-18 | Component Removal, Hoses and Pipes, Dismantling and Assembly, Bearings, Pressure Testing, Suction Strainers, Training |
| Technical Data | 19-28 | Attachments, Capacities, Electrical System, Engine, Hydraulics, Transmission |
| Routine Maintenance | 29-79 | Service Schedule, Engine Fuel System |
| Attachments | 80-137 | Double Pump Commercial, System Relief Valve JCB Roadbreaker, Control Valve Hydraulic Power Take-Off, Gearbox and Motor Hydraulic Power Take-Off, Control Valve Hamworthy |
| Body & Framework | 138-149 | Slew Actuator |
| Electrics | 150-198 | Battery, Starter Motor, Alternators, Alternator DN460, Dynamo, Control Box Dynamo Only, Wiring Diagram |
| Controls | 199-212 | Driving Controls, Instrument Panel |
| Hydraulics | 213-279 | Loader Valve Hamworthy, Loader Valve Hamworthy Main Relief Valve, Loader Valve Hamworthy 3 Spool, Fault Finding |
| Transmission | 280-387 | Torque Converter Driving Shell, Clutch, Gearbox Stage 1 Manual and Suffix R Gearbox, Gearbox Synchromesh Description |
| Brakes | 388-399 | Transmission Brakes, Master Cylinder, Slave Cylinder, Hydraulic Circuit, Parking Brake |
| Steering | 400-439 | Pressure Testing |
| Engine | 440-446 | Oil, Oil Filter, Fuel System, Fuel Lift Pump, Fuel Injection Pump, Cooling System |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Front axle wheel nuts torque | 407 Nm, 41.5 kgf m, 300 Ibf ft | p. 435 |
| Front axle nut 4 torque | 156 Nm, 16 kgf m, 115 Ibf ft | p. 435 |
| Battery capacity | 12 volt 128 amp/h | p. 22 |
| Battery specific gravity (fully charged, up to 27°C) | 1.270—1.290 | p. 152 |
| Engine fuel filter element renewal interval | 400 Hours | p. 47 |
| Engine fan belt slack | 13 mm. (0.5 in.) | p. 53 |
| Hydraulic filter element renewal interval | 400 Hours | p. 71 |
| Front axle bush reaming diameter | 57.01—57.06mm. (2.2445-2.2463in.) | p. 439 |
| Cooling System Capacity | 13.6 litres | p. 21 |
| all models with JCB Roadbreaker | ||
| Pump Flow Rate (JCB Roadbreaker) | 45 litres/min | p. 20 |
| all models with Hamworthy Roadbreaker pump | ||
| Relief Valve Settings (JCB Roadbreaker - Hamworthy) | 138 bar | p. 20 |
| Manual and /3 build, Balanced Engines - Steel Sump | ||
| Engine Oil Capacity (Manual and /3 build, Steel Sump) | 9.6 litres | p. 21 |
