Part of the Case Repair Manuals.
A shuttle grinding into reverse can park your tractor in the middle of planting. This Case 430 service manual PDF, Case publication 9-75304, answers that job with 579 factory pages covering four tractor models in spark ignition and diesel builds. Wiring diagram supplements map the generator, ignition, and cranking circuits for each model pair, while hydraulic schematics trace the Draft-O-Matic system from the 10 GPM pump through the remote valves and breakaway couplings. Rebuild procedures carry the Roosa Master DB injection pump, the mechanical shuttle, and the Case-O-Matic drive down to final clearances. Check the oil pump relief valve against its 50 to 75 pound rating on the 188 diesel, then pull your connecting rod nuts to 45 to 50 ft. lbs. on reassembly. A misremembered torque snaps a stud the co-op cannot order. Bookmarked and text searchable, this PDF puts the right spec on screen in seconds and gets the tractor back in the field.
Other edition of this manual
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| General | 3-18 | Specifications, Torque Specifications |
| Engines | 19-148 | Cylinder Head and Valves - Spark Ignition, Cylinder Head and Valves - Diesel, Cylinder Block Assembly - Spark Ignition, Cylinder Block Assembly - Diesel |
| Fuel System | 149-250 | Fuel System and Filters - 188 and 207 Diesel Engines, Fuel Strainer and Filter - Spark Ignition Engines, Roosa Master Db Fuel Injection Pump, Roosa Master Fuel Injectors |
| Hydraulics | 251-306 | Portable Hyd. Cyl. and Break Away Couplings, Servicing the Remote Hydraulic Valves, Servicing the Hydraulic Pump, Draft-O-Matic Hydraulic System |
| Steering | 307-380 | Hydrostatic Steering System, Power Steering System, Mechanical Steering System, Packing Front Wheel Bearings, Servicing the Front Axle |
| Power Train | 381-495 | Four Speed Transmission and Final Drive, Servicing the Mechanical Shuttle, Dual Range Assembly, Splitting the Tractor at Torque Tube and Transmission, Inch Traction Clutch |
| Brakes | 496-507 | Differential Brakes, Parking Brake and Adjustment |
| Electrical | 508-579 | Supl. No. 3 Wiring Diagram - 430-470, Supl. No. 4 Wiring Diagram - 530-570, Electrical System, Generator System, Distributor Ignition System, Starting and Cranking Motors |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Camshaft Nut | 80-90 Ft. Lbs. | p. 9 |
| Connecting Rod Nut | 45-50 Ft. Lbs. | p. 9 |
| Oil Pump Pressure Relief Valve | 50 to 75 Pounds | p. 5 |
| Relief Valve Spring Pressure at Compressed Height of 1.438 Inches | 18.4 Pounds | p. 16 |
| Pump flow | 10 GPM | p. 274 |
| Pump cover bolt torque | 28-32 foot pounds | p. 276 |
| Power Pump Oil Flow | 6.5 GPM at 1200 PSI | p. 336 |
| Power Pump Relief Valve Pressure | 1500 to 1700 PSI | p. 306 |
| End cover bolt torque | 18 to 22 foot pounds | p. 332 |
| Ball stud retainer plate screw torque | 5 to 7 foot pounds | p. 334 |
| Rear cover torque | 9 - 11 foot pounds | p. 356 |
| Pressure spring rate | 95 to 105 lbs. at height of 1.685" | p. 438 |













