Part of the Case Repair Manuals.
A hydrostatic tractor that jerks in gear, or drives one direction only, can stall a whole planting week while you guess at charge pressure. The fix starts with this Case 235 service manual PDF: 383 pages, OEM 8-92560, factory coverage for ten variants across the 235 and MT160/MT180 families. Wiring diagrams trace the starter, alternator and regulator circuits, while hydraulic schematics map the lift circuit from the oil pump out to the three-point hitch. Roughly a third of the book covers the hydrostatic transmission: pressure testing, symptom-keyed troubleshooting, and full teardown of the charge pump and rotating assemblies. Relining the clutch? Replace the disc once the lining wears past 7.8 mm (5/16 in.), and bench the glow plugs at their 10.5 volt rating. One invented charge pressure figure can cook that pump. Your copy is text searchable, bookmarked by system, and prints clean, so the pages can sit on the bench and take grease while the weather holds.
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| General | 2-21 | General Specifications, Periodical Maintenance Services |
| Engine | 22-91 | Construction, Engine Services, Inspection |
| Electrical | 92-123 | Battery, Starter, Alternator, Regulator |
| Steering | 124-149 | Wheel Drive |
| Tractor Split - Hydrostatic Transmission | 150-179 | Tractor Split, Hydrostatic Transmission, Disconnect, Connect, Troubleshooting |
| Clutch System | 180-199 | Clutch Release Mechanism, Clutch Cover Assembly, Clutch Disc, Removal, Inspection, Adjustment |
| Synchromesh Transmission | 200-225 | Transmission Construction, Shift Patterns, Removal, Disassembly, Reassembly, Speed Change Shifter |
| Testing Hydrostatic Transmission | 226-239 | Test Preparation, Forward Drive Pressure, Reverse Drive Pressure, Charge Pressure |
| Troubleshooting Hydrostatic Transmission | 240-275 | Tractor Will Not Drive, Tractor Drives in One Direction Only, Overheating, Tractor Jerks |
| Hydrostatic Transmission Service | 276-333 | Charge Pump, Valve Plate Holder, Transmission Case, Rotating Assemblies, Assembly |
| Brakes | 334-345 | Construction, Disassembly, Inspection and Maintenance |
| Hydraulics | 346-383 | Construction, Operation, Disassembly and Reassembly, Oil Pump |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Rated voltage | 10.5 V | p. 88 |
| Resistance capacity | 1 ~ 1.2 Ω | p. 20 |
| Lining thickness | 7.8 mm (5/16 in.) | p. 198 |
| M5 bolt torque (4T) | 0.2 ~ 0.35 kg-m (1.44 ~ 2.53 lb-ft) | p. 19 |
| M6 bolt torque (4T) | 0.5 ~ 0.7 kg-m (3.61 ~ 5.06 lb-ft) | p. 19 |
| Glow plug tightening torque | 1.5 to 2 kg-m (10.8 to 14.5 ft.lbs.) | p. 89 |
| Glow plug voltage-current | 10.5V-9.7 | p. 88 |
| Battery capacity | 45 ampere-hours | p. 2 |
| Battery electrolyte capacity | 2.8 liters | p. 100 |
| Fuse rating | 10A | p. 122 |
| Rear Frame and Transmission Hydraulic Fluid Capacity | 14.8 Quarts (14.0 Litres) | p. 152 |
| Clutch pedal free play | 20 ~ 30 mm (0.79 ~ 1.18 in.) | p. 195 |
