JCB Loadall 504B, 526 Service Manual PDF

All construction and agricultural equipment can be hazardous. When a JCB machine is correctly operated and properly maintained, it is a safe machine to work with. But when it is carelessly operated or poorly maintained it can become a danger to you (the operator) and others.

In order to avoid such situations, you should purchase and carefully study this service manual. This PDF manual is intended for operation and routine maintenance of the JCB Loadall 504B, 526.

This service repair manual contains lots of illustrations, pictures, especially electrical diagrams, hydraulic harness, routine maintenance instructions, technical data, and other repair information. 

The service publication contains step-by-step instructions for repairing equipment, for repairing fuel system elements, launch and charging systems, and electrical circuits. The manual contains a description of troubleshooting methods, tightening torques, mating dimensions of the main parts and their permissible limits wear parts.

The service workshop manual comes in PDF format, which can work under any Windows operating system. We also recommend using the Adobe PDF Reader application. This application will help you to read the manual, copy the necessary service information, and also print this manual. Using this repair manual is an inexpensive way to keep your equipment working properly.

Publication No. 9803/3610U-4

Models covered:
504B - from Machine Serial Number 277001
526 - from Machine Serial Number 279289

Contents:

• Section 1 - General Information
  • Identification
  • Torque Settings
  • Service Tools
  • Sealing and Retaining Compounds
• Section 2 - Care & Safety
  • Safety Notices
  • General safety
  • Operating safety
  • Maintenance safety
  • Lubricants - Health and Safety
• Section 3 - Routine Maintenance
  • Lubricants and Capacities
  • Machine Safety
  • Service Schedules
  • Grease
  • Oiling
  • Tires and Wheels
  • Foot Brake (504B machines only)
  • Engine Air Filter
  • Engine Oil and Filter
  • Engine Cooling System
  • Cab Heater Filter
  • Fire Extinguisher
  • Synchro Shuttle Transmission
  • Front and Rear Axle
  • Front and Rear Hub
  • Hydraulic System
  • Hose Burst Protection Valves
  • Battery
  • Fuel System
• Section B - Body & Framework
  • Cab
  • Fuel/Hydraulic Tank 504B
  • Fuel/Hydraulic Tank 526
  • Wear Pads
  • Air Conditioning Option
  • Rivet Nuts
• Section C - Electrics
  • Alternator
  • Starter Motor
  • Parking Brake Switch
  • Electronic Control Unit
• Section D - Controls
  • 2/4 Wheel Disconnect Adjustment
• Section E - Hydraulics
  • Technical Data
  • Schematic Circuit
  • Descriptions
  • Fault Finding
  • Introduction to Hydraulic Symbols
  • Pump
  • Valves
  • Rams
• Section F - Transmission
  • Technical Data
  • Towing Procedure 
  • Descriptions
  • Fault Finding
  • Torque Converter
  • Testing
  • Syncro Shuttle
  • Axles
  • DropBox
  • Transmission Oil Cooler
• Section G - Brakes
  • Technical Data
  • Descriptions
  • Parking Brake
  • Fault Finding
  • Testing
  • Master Cylinder
  • Accumulator Charge Valve
• Section H - Steering
  • Technical Data
  • Descriptions
  • Fault Finding
  • Re-aligning the Road Wheels
  • Powered Track Rod
  • Valves
  • Bleeding
• Section K - Engine
  • Technical Data
  • Radiator Removal and Replacement
  • Engine and Transmission Removal and Replacement
  • Separating the Engine and Transmission