JCB Rear Engine Loadall 526, 526S, 528-70, 528S Telehandler Service Manual
609 pages · Publication 9803-3710
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- Models
- Rear Engine Loadall 526, 526S, 528-70, 528S
- Serial coverage
- 526 from SN 1182000, 526S from SN 1182000, 528-70 from SN 1182000, 528S from SN 1182000
- Manual type
- Service Manual
- Pages
- 609
- Publication
- 9803-3710
- Condition
- Brand new

What's inside
From the manual's own table of contents: 4 sections, 307 entries. See sample pages (PDF, 394 KB)
General82 topics
- About This Manual
- Machine Model and Serial Number
- Using the Service Manual
- Units of Measurement
- Section Numbering
- Left Side, Right Side
- Cross References
- Identifying Your Machine
- Machine Identification Plate
- Component Identification Plates
- Zinc Plated Fasteners and Dacromet Fasteners
- Introduction
- Bolts and Screws
- Hydraulic Connections
- O' Ring Face Seal System
- Torque Stop' Hose System
- Numerical List
- Tool Detail Reference
- Section B - Frame and Bodywork
- Section C - Electrics
- Section E - Hydraulics
- Section F - Transmission
- Section H - Steering
- Section K - Engine
- Sealing and Retaining Compounds
- Colour Coding
- Hydraulic Schematic Colour Codes
- Important Information
- The Operator Manual
- Safety Warnings
- Safety Checklist
- Safety - Yours and Others
- General Safety
- Operating Safety
- Maintenance Safety
- Safety Decals
- Safety Decal Recognition
- Health and Safety
- Lubricants
- Battery
- First Aid - Electrolyte
- Service Schedules
- How to Use the Service Schedules
- Pre-start Cold Checks, Service Points and Fluid Levels
- Functional Test and Final Inspection
- Fluids, Lubricants and Capacities
- Coolant Mixtures
- Cleaning the Machine
- Preparing the Machine for Cleaning
- Cleaning the Cab Heater Filter
- Checking for Damage
- Seat Belt
- Checking the Seat Belt Condition and Security
- ROPS/FOPS Structure
- Checking the ROPS/FOPS Structure
- Boom Safety Strut
- Installing
- Removing
- Greasing
- Every 50 Hours
- Every 500 Hours
- Every 1000 Hours
- Oiling
- Park Brake Cable
- Control Levers
- Access Panels
- Battery Cover
- Engine Cover
- Brakes
- Park Brake Adjustment
- Checking the Foot Brake Fluid Level
- Electrical System
- Jump Starting the Engine
- Engine Air Filter
- Cleaning the Air Filter Dust Valve
- Changing the Elements
- Engine
- Checking the Oil Level
- Changing the Oil and Filter
- Checking the Coolant Level
- Changing the Coolant
- Front End Accessory Drive Belt
Section 3 - Maintenance56 topics
- Fuel System
- Types of Fuel
- Filling the Tank
- Draining the Water Seperator and Engine Fuel Filter
- Changing the Water Seperator Filter
- Changing the Engine Fuel Filter Element
- Bleeding the System
- Hydraulic System
- Checking the Hydraulic Fluid Level
- Changing the Filter Element
- Changing the Pilot Filter Element (if applicable)
- Checking the Hose Burst Protection Valves
- Transmission
- Checking the Transmission Oil Level
- Changing the Transmission Oil and Filter
- Tyres and Wheels
- Tyre Inflation
- Checking the Wheel Nut Torques
- Axles
- Front and Rear Axle
- Windscreen Washer
- Checking the Level
- Fire Extinguisher (if fitted)
- Checking the Fire Extinguisher
- Air Conditioning (Option)
- Safety Procedures
- R134a Refrigerant
- PAG Type Refrigerant Oil
- System Operation
- System Control
- Load Moment Indicator (LMI)
- General Fault Indications
- System Diagnosis using Test Gauges
- Fault Codes
- General Fault Finding
- Diagnostic Tests
- Rivet Nuts
- Fitting Procedure
- Slide Hammer Kit
- Service Checks
- Leak Testing
- Tightening Leaking Hoses
- Refrigerant Charging and Discharging
- Binary Pressure Switch Testing
- Compressor Drive Belt - Adjustment
- Condenser Matrix Cleaning
- ROPS, FOPS Structure - Checks
- Direct Glazing
- Calibration Procedure
- Calibration Charts
- Boom
- Wear Pad Renewal
- Removal and Replacement
- Air Conditioning Unit (HVAC)
- Freeze Protection Thermostat
- Binary Pressure Switch
Section B - Body and Framework72 topics
- Axle Transducer
- Stage Boom
- Machines
- General Electrical Data
- Fuses and Relays
- Fuses
- Link Box Fuses
- Relays
- Machines with Synchro Shuttle Transmission
- Machines with Powershift Transmission
- Using a Multimeter
- Measuring DC Voltage
- Measuring Resistance
- Measuring Continuity
- Measuring Frequency
- Testing a Diode or a Diode Wire
- Maintenance
- Testing
- Specific Gravity Testing
- Alternator
- General Description
- Service Precautions
- Charging Circuit Test
- Alternator Charging Test
- Starter Motor
- Starting Circuit Test
- Wire and Harness Number Identification
- Wire Numbers and Functions
- Wiring Harness Repair
- Repair Procedure
- Removal, Inspection and Replacement
- Dismantle and Assembly
- Location
- Drawings and Interconnection
- Harnesses
- Drawings
- Hydraulic Pump
- Control Valve Block
- Hydraulic Rams
- Smooth Ride System (SRS)
- Accumulator
- Component Location and Neutral Circuit Description
- Introduction to Hydraulic Schematic Symbols
- General (Basic and Functional Symbols)
- Control Valves
- Example of Schematic Circuit
- Machines with Dual Lever Controls
- Machines with Single Lever Controls
- Pump Operation
- Neutral Circuit
- Boom Lift Operation
- Boom Lower Operation
- Boom Extend and Retract Operation
- Hose Burst Protection Valve Operation
- Main Relief Valve (MRV) Operation
- Auxiliary Relief Valve (ARV) Operation
- Parallel Lift
- Microswitches
- Hydraulic Schematic
- General
- Hydraulic Contamination
- Hydraulic Fluid Quality
- Effects of Contamination
- Cleaning Operation
- Contaminant Standards
- Filters
- `Positional Type' Hydraulic Adaptors
- Flow and Pressure Tests
- Checking Pump Flow
- Testing Main Relief Valve (MRV)
- Testing Auxiliary Relief Valves (ARV’s)
- Checking the Servo Pilot Pressure
Section E - Hydraulics43 topics
- Smooth Ride System (SRS) Accumulators
- Charging and Discharging
- Dismantle, Inspection and Assemble
- Dismantle and Assemble
- Tie Rods
- Valve Block Sections
- Spools and Load Hold Check Valves
- Precautions During Use
- Installation
- Caution During Use
- Maintenance, Inspection Points
- Lift Ram
- Displacement Ram
- Extension Ram
- Tilt Ram
- Typical Ram
- JCB Ram Sealing Procedure
- Piston Head Retention
- Accumulators
- Dismantling, Inspection and Assembly
- Tyre Pressures
- Front Axles
- Unit Identification
- Rear Axles
- Synchro Shuttle Gearbox
- Powershift Gearbox
- Engine Stall Speed Combinations
- Front Axle - Steer Drive Type SD70
- Component Identification
- Rear Axle - Steer Drive Type SD55
- Principle of Operation
- Hydraulic and Electrical Operation
- Hydraulic and Electrical Operation - 4 Speed Gearbox
- Drivepaths
- Torque Converter
- Synchromesh (Blocking Pin Type)
- Synchromesh Operation
- Forward and Reverser Clutch Operation
- Mainshaft and Layshaft Clutch Operation
- Quick Reference
- Wires and Connectors
- Rear Axle SD55
- Renewing the Pinion Oil Seal
Section F - Transmission50 topics
- Front Axle SD70
- Renewing the Drop Box Input and Output Shaft Oil Seals
- Testing for Brake Piston Seal Leakage
- Flushing the Transmission Oil
- Torque Converter Stall Test
- Pressure and Flow Tests
- Solenoid Identification
- Fault Finding Tables
- Dismantle, Inspection and Assembly
- Service Brakes
- Park Brake
- Brake System
- Brake Light Switch - Adjustment
- Bleeding
- Brake Piston Seal Leakage
- Axle Breather (Braked Axles) - Inspection
- Adjustment
- Switch Adjustment
- Renewing the Brake Pads
- Dismantling and Assembly
- Synchro Shuttle and Powershift Machines
- Torque Figures
- Caliper - Removal and Replacement
- Caliper - Dismantle, Inspection and Assemble
- Steer Unit
- Priority Valve
- Steer System Schematics
- Machines with All Wheel Steering Only
- Machines with 3 Steer Modes (Option)
- Steer System Operation
- Priority Valve Operation
- Neutral
- Turning
- Steer Alignment Indicators
- Steering System
- Testing the Standby Pressure
- Testing the System Pressure
- Steer Priority Valve - Cleaning
- Re-phasing the Road Wheels
- Proximity Switch - Setting
- Checking for Internal Hydraulic Leakage
- Checking Energiser Seals
- Link Arms
- Rams
- JCB 444 Series
- Specifications
- Cold Start Heater
- Component Key
- Removal
- Replacement
Inside this manual
Real pages from this service manual (609 pages). Open the sample pages (PDF, 394 KB)
- Diagram, page 243: Section C - Electrics
- Specifications, page 387: Technical Data
- Troubleshooting, page 495: Fault Finding
- Color page, page 410: Section F - Transmission
- Color page, page 310: Section E - Hydraulics
This is a service manual
Here's how it compares to the other manual types.
Service manual
Factory repair procedures and technical information such as specifications, troubleshooting, and wiring and hydraulic diagrams, for the models and systems the manual covers. See What's inside for its topics.
Operator's manual
Safe operation, controls, maintenance schedules, lubrication points, inspections, and basic checks. Repair procedures are in the service manual.
Parts manual
Illustrated diagrams with factory part numbers for identifying components and ordering parts. Repair procedures are in the service manual.
Engine service manuals are sometimes sold separately, since certain machine models were offered with more than one engine option.
What it's used for
Factory manual for in-house farm and construction shop use. Straightforward, complete, and easy to follow. It contains the OEM information dealership service departments and parts counters use to diagnose problems, identify components, and perform maintenance or repairs correctly.
Service shops and owner/operators who repair their own equipment
Identifying correct parts and seeing how assemblies come apart and go back together
Keeping equipment running with less downtime
Factory manual, 609 pages
Quantity one is the manual described above.
Fast free USA shipping
Ships in 1 business day.
60-day returns
Free if the mistake is ours. A manual ordered in error must come back unopened in its shrink-wrap; you pay return shipping and a 20% restocking fee applies. Return policy
Binder not included
Manuals over about 300 pages may need a standard 3-ring binder, which you can buy locally to keep the pages organized for shop use.
Other editions and similar models
Questions about model, serial number, engine coverage or contents? Contact us before purchasing and we'll help confirm it's the right manual. Please verify the manual type, machine model, serial number range and engine coverage before purchasing: manuals ordered in error carry a 20% restocking fee (return policy).