Part of the JCB Operator Manuals.
This is the JCB 3C MK III and 3D MK III Operator's Manual (publication 9801/3600S, issue 4) for these backhoe loaders from machine number 125000 onward. Across 166 pages it explains how to run and look after the machine safely and correctly.
It walks through the cab layout and controls, shovel and excavator operation, personal safety, and the routine maintenance an operator handles: greasing, engine, fuel, hydraulic and electrical checks. Optional equipment such as buckets, the JCB jaw, extending dipper and road breaker is covered too.
A full specifications and service section lists capacities, service schedules and machine data, with the warranty procedure at the back. For owners keeping a classic 3C or 3D backhoe working, it is the reference for day to day operation and scheduled servicing.
What's Inside This JCB 3C MK III, 3D MK III Operator Manual
| System | Pages | Key Topics |
|---|---|---|
| General Information | 3-9 | Introduction (Warranty, Registration Card, Free Service Vouchers, Routine Service Vouchers), Service Contract, Personal Safety (Protection) |
| Operation | 10-51 | Cab Layout (Throttle Lever, Seat Adjustment, Rearscreen Wiper, Generator Warning Light, Oil Pressure Warning Light, Rear Window Stowage Pins and Tubes, Shovel Controls, Excavator Controls) |
| Maintenance | 52-97 | Machine Care (Greasing, Engine, Oil, Fuel System, Hydraulics, Electrics) |
| Optional Equipment | 98-116 | Buckets, Attachments, Jcb Jaw, Jcb Extending Dipper, Road Breaker, Power Breaker, Refuelling Pump |
| Specifications and Service | 117-159 | Specification (Service: Contract, Vouchers, Schedule), All Machines (Engine, Transmission, Steering, Brakes) |
| Warranty and Procedure | 160-166 | Warranty and Procedure - Uk and Eire |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Battery Voltage and Capacity | 12 volt - 128 amp/hr at 20 hr rate | p. 122 |
| Alternator Output | 43 amp | p. 122 |
| Engine Fan Belt Slack (for alternator adjustment) | 13 mm (0.5 in.) | p. 72 |
| Engine Oil Filter Renewal Interval | 200 Hours | p. 63 |
| 3C MK III | ||
| Hydraulic System Capacity, 3C MK III | 195 Litre / 43 Gal | p. 119 |
| 3D MK III | ||
| Hydraulic System Capacity, 3D MK III | 204 Litre / 45 Gal | p. 119 |
| 3C | ||
| Engine Oil Capacity (Balanced, Steel Sump) | 9.6 Litre | p. 119 |
| Fuel Tank Capacity | 68 Litre | p. 119 |
| Cooling System Capacity | 13.6 Litre | p. 119 |
| Gearbox Oil Capacity (10 Speed) | 50 Litre | p. 119 |
| Torque Converter Oil Capacity (Build/3) | 20.4 Litre | p. 119 |
| Hydraulic System Capacity (including tank) | 195 Litre | p. 119 |
