Part of the Case Repair Manuals.
Need the exact factory diagnostic steps for your Case excavator? This 746-page Case WX145, WX165, WX185 Service Manual PDF (OEM #9-91221) breaks down every hydraulic control block, CAN bus module, and undercarriage rebuild procedure. You get complete electrical circuit diagrams covering sensor power supplies, full hydraulic schematics detailing pilot-control systems, and step-by-step troubleshooting charts mapped directly to central unit fault codes. Open up to page after page of detailed pinouts, system diagrams, and exploded views for fast tear-downs. Verify the B10.1 speed sensor coil resistance reads exactly 450 Ω ± 20 Ω, and tighten the B13.1 temperature sensor to a precise 20 to 30 Nm before testing the machine. Stop wasting hours chasing electrical faults without a wiring map. Grab this instantly downloadable, bookmarked file, pull it up on your shop tablet, and get your equipment back in the dirt.
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| Summary | 3-4 | |
| Safety Instructions | 5-63 | Personal Safety Instructions, Safety Instructions Before Starting Work, Safety Instructions for Machine Operation, maintenance/servicing |
| Technical Data and Special Tools | 64-112 | Service Data General, Data Sheet for Cylinders, Conversions Tables, Tightening Torques, Calculation Examples, Special Tools |
| Machine Structure | 113-174 | Machine Layout, Undercarriage, Superstructure, Electrical System, Working Equipment, Control Elements |
| Electrical System | 175-310 | Fuses, Electrical Circuit Diagrams, Power Supply, Sensor Power Supply, Switches, Electrical Components by Code Numbers |
| Electronics | 311-361 | Electronic Control Unit, CAN Bus, Power Supply, Pcs, Power Control System, Joysticks and Pedals, Esx Coding |
| Hydraulics | 362-564 | Hydraulic System Overview, Control Block, Pilot-Control System, Travel Circuit, Braking, Steering and Fan Circuit, Cylinder Circuits |
| Troubleshooting and Repair | 565-587 | Fault Codes, General Information on Fault Codes, Fault Codes Pcs Unit, Central Unit |
| Repair Instructions | 588-746 | Depressurizing the Hydraulic System / Brake System, Bearings and Bushings, Superstructure Components, Undercarriage Components, Boom Cylinder, Fuses |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| WX145 | ||
| Max. bucket force, WX145 | 91.4 kN | p. 73 |
| WX165 | ||
| Max. bucket force, WX165 | 116.9 kN | p. 73 |
| WX185 | ||
| Max. bucket force, WX185 | 125.4 kN | p. 73 |
| All Models | ||
| Speed sensor B10.1 - Coil resistance | 450 Ω ± 20 Ω | p. 353 |
| Temperature sensor B13.1 - Tightening torque | 20 to 30 Nm | p. 354 |
| Proportional valve Y10 - Max. coil current | 850 mA | p. 357 |
| Wheel nut tightening torque | 450 Nm | p. 678 |
