This is the full JCB factory service manual (publication 9813-3900) for the 525-60 Loadall, JCB's compact 2.5-tonne, 6-metre rough-terrain telescopic handler. Running to 1,894 pages, it is the dealer-level workshop manual for the current Kohler-engined machine, built around the 55 kW Kohler KDI 2.5-litre Tier 4 Final diesel. It carries the diagnostics, removal and refit procedures, boom and lift-arm wear-pad clearances, torque figures and the full hydraulic and electrical schematic circuits for every system: engine, fuel and cooling, the transmission and driveline, the load-handling hydraulics, brakes, electrics, the quickhitch and attachments, and the operator station. It is the manual you need to fault-find a boom, drive or electrical problem properly rather than swap parts at it.
What's Inside This JCB 525-60 Manual
| System | Pages | Key Topics |
|---|---|---|
| Machine | Safety Warnings, Maintenance Safety, Operating Safety, Model and Serial Number, Main Component Locations, Towing Procedures | |
| Safety | Safety - Yours and Others, Safety Warnings, General Safety, Maintenance Safety, Operating Safety, Risk Assessment | |
| Attachments, Couplings and Load Handling | General Attachments, Fork Attachments, Jib Attachments, Hook Attachments, Work Platform Safety | |
| Hydraulic System | Schematic Circuit, Hydraulic Oil Level Indicator, Accumulators Safety, Hydraulic Pressure | |
| Electrical System | Schematic Circuit, Battery - Isolator Switch, Power Distribution, Electrical Power Cables, Arc Welding Precautions | |
| Fasteners and Fixings | Torque Tightening, Fastener Specifications, Threadlocker and Sealer | |
| Consumable Products | JCB Threadlocker and Sealer, Special Mpl-Ep Grease |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Model | 525-60 (2.5 t capacity, 6 m lift height) | |
| Engine | Kohler KDI 2.5 L, 55 kW (74 hp) at 2200 rpm, Tier 4 Final | |
| Cylinders / displacement | 4 in-line, 2.482 L | |
| Bore x stroke | 88 x 102 mm | |
| Compression ratio | 17:1 | |
| Engine dry weight | 233 kg | |
| Transmission top speed | 25 km/h (15.5 mph) | |
| Lift-arm wear pad max clearance | 3 mm | |
| Propshaft bolt torque | 95-115 Nm | |
| Manual pages | 1894 |
JCB 525-60 Common Problems This Manual Covers
Engine cranks but will not start, or starts intermittently
Work the Kohler fuel system: bleed any air from the lines, renew blocked filters and check fuel delivery, then read the stored fault codes for a sensor or electrical cause. On the common-rail KDI engine a weak lift/transfer pump or an air leak on the suction side is a common reason for a hard or intermittent start.
Manual Section: Fuel and Exhaust SystemHydraulic functions are slow, weak, or inoperative
Check hydraulic fluid level and condition first and renew contaminated oil or a clogged filter, then flow- and pressure-test the main pump and check the control valve against spec. Slow or dead boom and auxiliary functions usually trace to low or dirty oil, a worn pump, or a valve fault rather than the rams.
Manual Section: Hydraulic SystemTransmission or drivetrain loses performance under load
Confirm the transmission fluid is the correct grade, at level and not burnt, before going internal. The manual's driveline section gives the pressure tests that separate a fluid or charge-pressure problem from internal clutch or pump wear.
Manual Section: DrivelineElectrical faults, warning lamps, or a machine immobilised by a harness fault
Read the fault codes and use the electrical schematic circuit to trace the affected branch. Damaged harness sections, a failed sensor, or a fuse/relay fault are the usual causes; the ECM-related immobilisation clears once the underlying wiring or sensor fault is fixed.
Manual Section: Electrical SystemBoom or load-handling functions are inconsistent or feel unsafe
Check the load-handling control valve and circuit pressure and look for cylinder leak-down, then confirm the interlock and safety switches are working. Inconsistent boom movement is usually a valve or pressure fault, but never dismiss a faulty interlock on a load-handling machine.
Manual Section: Attachments, Couplings and Load HandlingFrequently Asked Questions
Which machine does this manual cover?
The JCB 525-60 Loadall, the compact 2.5-tonne, 6-metre telescopic handler, in its current Kohler KDI 2.5-litre Tier 4 Final engine form (publication 9813-3900).
How do I reset a fault code or the service light on a JCB 525-60?
The Electrical System section covers reading and clearing fault codes, the service-interval reset and the warning lamps, so you can clear a code or service reminder and confirm the underlying fault without a dealer tool.
How do I reset the park-brake warning?
The manual documents the park-brake circuit, its switch and the warning logic in the Electrical and Brake sections, including how to confirm the switch and wiring when the warning will not clear.
Does it give torque specs for wheel nuts, boom pins and engine bolts?
Yes. The Fasteners and Fixings section carries the tightening torques and thread data, and individual procedures give the local torques such as the 95-115 Nm propshaft bolts.
Does it include wiring and hydraulic circuit diagrams?
Yes. Both the Hydraulic System and Electrical System sections include the full schematic circuits, component locations and fault-finding for the machine.
Is this the right engine for my 525-60?
This edition covers the Kohler KDI 2.5-litre 55 kW Tier 4 Final engine fitted to the current 525-60. Check the engine plate if you are unsure which power unit your machine carries.
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