Part of the JCB Repair Manuals.
Looking for the factory specs to rebuild your JCB JS290 - Tier III Auto excavator? This 559-page js290 tier iii auto service manual pdf (OEM #9803/9800-4) breaks down every hydraulic, electrical, and powertrain system. Inside, you get complete hydraulic schematics tracing the main control valve and pilot lines, full electrical wiring diagrams for the Advanced Management System, and step-by-step tear-down procedures for the traction motor. Open to the troubleshooting section to diagnose error codes straight from the engine control unit. Swap the air cleaner inner element at exactly 1000 hours and confirm the primary fuel filter is replaced every 500 hours to keep the Tier III engine running right. Guessing on a down machine costs you time and money. Grab this bookmarked file, pull up the exact schematic on your tablet, and get the iron moving again.
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| General Information | 2-47 | Introduction (Identifying Your Machine), Torque Settings (Zinc Plated Fasteners and Dacromet Fasteners, Hydraulic Connections) |
| Care and Safety | 48-67 | Safety Notices (Important Information, Safety Warnings) |
| Maintenance | 68-167 | Routine Maintenance (Service Requirements, Introduction, Owner/Operator Support, Service/Maintenance Agreements, Fit for Purpose Tests for Lifting Equipment, Obtaining Replacement Parts, Health and Safety, Lubricants, Handling, New Oil, Used Oil, First Aid - Oil, Battery, Warning Symbols, First Aid - Electrolyte, Service Schedules, How to Use the Service Schedules, Calendar Equivalents, Pre Start Cold Checks, Service Points and Fluid Levels, Functional Test and Final Inspection) |
| Body & Framework | 168-205 | Technical Data (Static Dimensions, Shipping Weight, Dig Depth Chart, Air Conditioning), Basic Operation (Automatic Temperature Control System), Fault Finding (Air Conditioning) |
| Electrics | 206-305 | Basic System Operation (Circuit Symbols, Component Identification, Schematic Diagram, A.M.S, Circuit Concepts, Pulse Width Modulation, ECU1/EMS/FACIA Power Supply and Network, ECU 1 Supply to Output Drivers, Engine Throttle Control, Pump Control for Each Mode, Hardware Sensing, Auto Boost Pressure, Engine Oil Level Warning, Engine Pre Heat, Engine Automatic Warm Up, Engine Automatic Idle, Engine One Touch Idle, Engine Start/Stop, Limp Mode System, Lever Lock, Servo Isolator, Wiper, Lower Wiper, Washer, Horn, Travel Alarm, Soft/Hard, Slew Brake, Slew Lock, Slew Brake Solenoid Valve Failure, 3-Speed Travel, Work Lamps, Viscous Fan, Fuel Level Sensor/Warning, Engine Temperature Sensor/Warning, Coolant Level Warning, Air Filter Blocked Warning, Hydraulic Temperature Sensor/Warning, Alternator/No Charge Warning, Quick Hitch, Overload Caution, Beacon, Hammer Only, Scrap Magnet Option, Cab Interior Lamp, Refuelling Pump, Air Conditioning, Heated Seat, Radio and Cigar Lighter, Service Required Warning, Ems Set Menu., Ems Set + Mode Menu, Ems Set+Mode Menu.) |
| Hydraulics | 306-405 | Technical Data, Basic System Operation (Hydraulic Component Location - JS290 Tier Iii, Introduction to Hydraulic Schematic Symbols) |
| Transmission | 406-473 | Technical Data (Travel Equipment), Fault Finding (Transmission), Traction Motor / Reduction Gear (Description, Operation, Removal and Replacement, Start Up and Running in) |
| Track and Running Gear | 474-508 | Idler Wheel and Recoil Unit (Removal, Replacement), Idler Wheel (Dismantling, Assembly), Recoil Unit (Dismantling and Assembly, Dismantling |
| Engine | 509-559 | Technical Data (Engine, Engine Mounts, Engine Error Codes, Use for Identification the Repair Part) |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Air Cleaner Outer Element Replacement Interval | 500 hours | p. 78 |
| Air Cleaner Inner Element Replacement Interval | 1000 hours | p. 78 |
| Fuel Pump Filter Element Replacement Interval | 500 hours | p. 78 |
| Primary Fuel Filter/Sedimenter-filter Replacement Interval | 500 hours | p. 78 |
| Engine Oil and Filter Replacement Interval | 500 hours | p. 78 |
| Servo Filter Element Replacement Interval | 500 hours | p. 78 |
| Plexus Filter Element Replacement Interval | 500 hours | p. 78 |
| Radiator Cleaning Interval | 250 hours | p. 78 |
| Radiator Mounting Bolts Torque | 65 Nm (48 lbf ft) | p. 122 |
| Bucket Side Play Clearance | approximately 0.8 mm | p. 167 |
| Shoe Bolt Tightening Torque | 840-890 Nm (620-656 lbf ft) | p. 122 |
| Boom Ram, Eye End Pin Greasing Interval | 50 Hours | p. 82 |
