Part of the JCB Repair Manuals.
Need the factory breakdown for your heavy hauler? This 567-page JCB 722, Articulated Dump Truck - 722 Service Manual PDF (OEM #9803/7170-07) maps out every powershift transmission, hydraulic ram, and tipping control valve procedure for the models. Complete electrical circuit diagrams, basic system operation flowcharts, and full hydraulic schematics for the main control manifold block are all included. Open to the error code section to instantly decode display panel faults, or jump straight into routine maintenance schedules covering everything from center pivot greasing to cooling system flushes. Torque those M10 Grade 8.8 fasteners to exactly 47.0 Nm, and let the high-strength threadlocker cure for a minimum of 2 hours before filling the ram with oil. Stop throwing parts at a sluggish dump circuit. Download the bookmarked file, pull it up on your shop tablet, and get the job done right.
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| Identification | 6-7 | Vehicle Identification, Vehicle Identification Plate, Explanation of the Vehicle Identification Number, Unit Identification |
| Torque Settings | 8-11 | Zinc Plated Fasteners and Dacromet Fasteners, Introduction, Bolts and Screws |
| Sealing and Retaining Compounds | 29 | JCB Multi-Gasket, JCB High Strength Threadlocker, JCB Retainer, JCB Threadlocker and Sealer, JCB Activator, Black Polyurethane Sealant |
| Towing | 30-31 | General, Preparation for Towing |
| Hydraulic Hoses | 32-33 | Connecting/Disconnecting, Venting Hydraulic Pressure, Connecting the Hoses, Disconnecting the Hoses |
| Hydraulics | 34-35 | Hydraulic Contamination, Hydraulic Fluid Quality, Effects of Contamination, Cleaning Operation, Procedure, Contamination Standards, Filters |
| Care and Safety | 36-55 | Safety Notices, Operating Safety, Maintenance Safety |
| Routine Maintenance | 56-127 | Maintenance, Service Schedules, Greasing, Parking Brake, Engine Oil and Filter, Engine Cooling System, Fuel System, Front |
| Section B - Body and Framework | 128-149 | Cab, Centre Pivot, Tipper Body |
| Section C - Electrics | 150-259 | Technical Data, Service Procedures, Circuit Diagrams, Wiring Harnesses, Display Panel, Error Codes |
| Section E - Hydraulics | 260-328 | Basic System Operation, Schematic Circuit, Fault Finding, Service Procedures, Main Control Manifold Block, Tipping Control Valve, Hydraulic Rams |
| Section F - Transmission | 329-442 | Axles, Powershift Transmission, Propshafts |
| Section G - Brakes | 443-479 | Service Procedures, Service Brakes, Parking Brake |
| Section H - Hydraulic Steering | 480-509 | Basic System Operation, Steering Unit, Steering Rams |
| Section K - Engine | 510-521 | Technical Data, Charge Air Cooler |
| Section S - Suspension | 522-567 | Front Suspension, Rear Suspension |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Service Required Reset Procedure | Reset when data is downloaded by JCB distributor | p. 226 |
| Hydraulic Fault Code Reset Procedure | Rectify underlying fault; no user-resettable procedure specified. Contact JCB distributor. | p. 258 |
| Metric Grade 8.8 Fasteners (M10) | 47.0 Nm (Condition 1) | p. 9 |
| Hydraulic Hose Replacement Interval (Pump Exit, Loader Ram Line, Crowd Ram Line) | Every 2 years or every 4000 hours, whichever comes first | p. 73 |
| JCB Threadlocker and Sealer (High Strength) Curing Time | Minimum of 2 hours between assembly and filling the ram with oil | p. 324 |
| Tipping Control Valve Cap Assembly (L) Torque | 10 Nm | p. 314 |
| Fuel Filter Element Replacement Frequency | 6 Monthly 500 Hr | p. 68 |
| Fuel Filter Element Installation Torque | Hand tight only | p. 108 |
| Air Filter Element Replacement Frequency (Inner Element) | Every third time the outer element is changed | p. 96 |
| Air Filter Element Replacement Frequency (Outer Element) | Monthly 100 Hr (check), 6 Monthly 500 Hr (replace) | p. 68 |
| Transmission Stall Speed | 1714 rpm | p. 334 |
| Axle Securing Bolts (8 off) Torque | 600 Nm | p. 337 |
