JCB 3CX, 4CX Excavator Loader Service Manual From Machine Serial No. 290000 (9803/3250)

JCB 3CX, 4CX Backhoe Loader Service Manual (From Machine Serial No. 290000) (9803/3250)

This official service manual provides detailed repair procedures, technical specifications, and full diagnostic guidance for JCB 3CX and 4CX backhoe loaders. Covering all mechanical, hydraulic, electrical, and driveline systems, it is an essential workshop resource for maintenance and professional servicing.

Model Covers:

JCB 3CX Contractor,

JCB 3CX Sitemaster,

JCB 3CX Super,

JCB 3CX Super Sitemaster,

JCB 4CX
Serial Numbers: 290000 to 400000

File Format: PDF

Size: 50.27 MB

No. of pages: 458

Language: English

Delivery Method: Instant Download – Access your file immediately after purchase.

📑 Included Sections:

General Information

• Service procedures, safety instructions and maintenance guidelines
• Machine identification plates and torque settings

Hydraulic Systems

• Hydraulic schematic diagrams and flow routing
• Main and auxiliary control valves, hydraulic pumps, rams and cylinders
• Hydraulic pressure setting and testing procedures

Attachments

• Loader and backhoe equipment configurations
• Quickhitch operation and maintenance, bucket servicing

Body and Framework

• Cab assemblies, body panels, engine covers, loader frames and kingpost structures
• Stabilizer legs, slew gear and mounting brackets

Engine Systems

• Engine removal and installation procedures
• Fuel systems, cooling systems and lubrication system maintenance
• Starter motors, alternators and engine mounting details

Transmission Systems

• Syncro Shuttle transmission repair, Powershift diagnostics
• Torque converter servicing and driveline schematic overview

Axles and Driveline Components

• Front and rear axle disassembly and reassembly
• Wheel hubs, differentials, prop shafts and final drives

Brake Systems

• Service brake circuits, master and slave cylinder service
• Parking brake mechanisms, pad replacements and adjustment

Hydraulic Steering Systems

• Steering orbitrol valves, steering rams and linkage testing
• Hydraulic pressure settings and steering column servicing

Electrical Systems

• Wiring diagrams, fuse and relay charts, harness repairs
• Electrical control panels, dashboard instruments and lighting systems

Service Tools

• Special tools for hydraulic, engine, axle, and transmission service

This JCB 3CX, 4CX Backhoe Loader Service Manual is an indispensable technical guide for performing accurate diagnostics, maintenance, and repairs on early generation JCB backhoe loaders.