Part of the JCB Repair Manuals.
All 297 pages of this JCB 8052, 8060 Service Manual PDF (OEM #9803/9290) focus on one clear goal: getting your midi excavator back to perfect factory condition. Open the file to find detailed hydraulic schematics mapping the entire load sense relief valve, track motor, and control circuits. You also get complete electrical wiring diagrams, exploded views of the slew gearbox, and a full section dedicated to general fault diagnosis to speed up your repair time. Set the fan belt deflection to exactly 7mm at 49Nm of force, and lock down the track motor sprockets to a solid 137 Nm. Every hour in the shop costs real money. Download the file, open the bookmarked chapters on your tablet, and get the job done right on the first try.
What's Inside This JCB 8052, 8060 Manual
| System | Pages | Key Topics |
|---|---|---|
| Care & Safety | 61-66 | Safety Notices, General Safety, Operating Safety, Maintenance Safety |
| Routine Maintenance | 67-94 | Fluids, Lubricants, Capacities and Specifications, Engine Lubrication Chart, Lubricants - Health and Safety, Torque Settings, Hydraulic Fittings and Torque Settings, Fuel System |
| Attachments | 95-117 | Available Attachments, Buckets, Quickhitch, Hydraulic Attachment Circuits, Single Acting Hydraulic Circuit, Double Acting Hydraulic Circuit, Hydraulic Breakers, Hydraulic Tool Kit |
| Body & Framework | 118-137 | General Description, Bucket Linkage, Bucket Ram Pivot and Linkage, Dipper, Boom, Kingpost, Dozer, Glazing |
| Electrics | 138-174 | Technical Data, Battery, Fan Belt, Alternator, Starter Motor, Beacon, Schematic Diagrams, Harness Data |
| Controls | 175-181 | Servo Hand Controllers, Track Levers, Dozer Lever, Control Cables |
| Hydraulics | 182-270 | Technical Data, Hydraulic Circuit (Schematic), Hydraulic System - General Fault Diagnosis, Hydraulic Pump, Track Motor, Slew Motor, Control Valve, Load Sense Relief Valve |
| Gearboxes | 271-280 | Technical Data, Track Gearbox, Slew Gearbox |
| Track & Running Gear | 281-294 | General Description, Tracks, Track Rollers, Track Idler and Recoil Unit, Driven Sprocket, Track Roller Metallic Face Seals |
| Engine | 295-297 | Technical Data, Fuel System Layout |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Sprockets to track motors torque | 137 Nm (14.0 kgf m, 101 lbf ft) | p. 282 |
| Engine head bolts torque | Not specified | p. 80 |
| Fuel filter element replacement frequency | Every 500 operating hours (or 6 months) | p. 80 |
| Fuel sediment bowl cleaning frequency | Every 50 operating hours (or weekly) | p. 79 |
| Air filter element (outer) replacement frequency | Every 1000 operating hours (or yearly) | p. 81 |
| Air filter element (inner) replacement frequency | Every 2000 operating hours (or 2 years) | p. 81 |
| Track tension clearance (rubber tracks) | 85mm (3.4in) | p. 285 |
| Track tension clearance (steel tracks) | 125mm (5.0in.) | p. 285 |
| Hydraulic adaptor torque (1/8"-BSP) | 14 Nm (10 lbf ft) | p. 72 |
| Hydraulic hose torque (1/8" BSP) | 14 Nm (10 lbf ft) | p. 72 |
| 8052 | ||
| Fan belt deflection (8052) | 7mm (0.28in.) approx. at 49Nm (11lbf - 5kgf) force | p. 92 |
| 8060 | ||
| Fan belt deflection (8060) | 10 mm (0.4in.) approx. at 49Nm (11lbf - 5kgf) force | p. 92 |
