Part of the Yanmar Repair Manuals.
Need factory-level depth on your Yanmar C50R-5 Crawler Carrier? This 589-page service manual covers the complete 4TNV94CHT turbocharged engine, HST drive system, hydraulic pump assemblies, and full electrical controls for the C50R-5. Inside: hydraulic circuit diagrams with full pump, travel motor, swing motor, and control valve routing; wiring diagrams covering the Engine ECU, T-ECU, LCD monitor, and alarm systems. You also get a complete troubleshooting section with HST fault diagnosis, DPF error codes, and a torque table for every critical fastener on the machine. Torque the track roller nuts to 294 to 324 N·m, swap fuel filters at 250-hour intervals, and replace the hydraulic line filter every 500 hours. Your machine is down. One download, keyword search, bookmarked sections. Pull it up on your phone and get back to work.
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| General Cautions for Maintenance Work | 12-27 | Correct Work, Safety Precautions, Preparations, Cautions for Disassembly and Reassembly, Cautions for Removal and Installation of Hydraulic Equipment |
| Technical Data | 28-47 | Specifications, Outside Drawing (Three-Side Flaps Wagon Type Model, Scoop-End Wagon Type Model, Swing Wagon Type Model), Main Parts Mass Chart, Power Transmission Mechanism |
| Service Standards | 48-71 | Machine Performance (Reference Value Table, Methods for Inspecting Performance), Engine, Servicing Standards for Parts of Undercarriage, Control Equipment |
| Engine | 72-259 | 4-1 Safety, 4-2 Engine, 4-3 Fuel System, 4-4 Cooling System, 4-5 Lubrication System, 4-6 Turbocharger, 4-7 Starter Motor, 4-8 Alternator |
| Electric System | 260-321 | Electrical Equipment of the Machine (Parts Layout of Electrical Equipment, LCD Monitor and Alarm Systems), Descriptions of Engine Start/Stop Circuit |
| Hydraulic System | 322-493 | 6-1 Outline, 6-2 Hydraulic Pump, 6-3 Gear Pump, 6-4 Travel Motor, 6-5 Swing Motor, 6-6 Control Valve, 6-7 Remote Control Valve, 6-8 Swivel Selector |
| Service Procedures for Individual Components | 494-575 | Engine Related Components (Radiator and Fan Belt, Fuel Tank, Removing and Installing the Engine, Removing and Installing the Engine ECU, Removing and Installing the T-ECU, Removing and Installing the DPF, Removing and Installing the Starting Motor) |
| Troubleshooting | 576-588 | 8-1 Troubleshooting, 8-2 HST Troubleshooting |
| Page Vierge | 589 |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Nuts installing track roller tightening torque | 217 to 238.7 ft·lbf (294 to 324 N·m) | p. 61 |
| Fuel oil Pre-filter replacement interval | Every 250 hours | p. 38 |
| Fuel oil filter element replacement interval | Every 250 hours | p. 38 |
| Hydraulic system suction filter cleaning interval | Every 250 hours | p. 38 |
| Hydraulic system line filter replacement interval | Every 500 hours | p. 38 |
| Hydraulic system return filter replacement interval | Every 500 hours | p. 38 |
| Hydraulic oil tank return filter replacement interval | Every 1000 hrs. (After first 50 hrs.) | p. 48 |
| Coolant check and resupply interval | Every 250 hours | p. 38 |
| YANMAR Super Long-Life Coolant (LLC anti-freeze) replacement interval | Every 2 years (autumn) | p. 39 |
| Track roller & shaft A diameter Standard | ø10.63 (270) in. (mm) | p. 56 |
| Track roller & shaft A diameter Allowable limit | ø10.24 (260) in. (mm) | p. 56 |
| Fuel temperature sensor installation tightening torque | 22 ± 2 N·m | p. 63 |
