Part of the Case Repair Manuals.
All 343 pages of this Case 350, 500B, and 600B Service Manual (OEM #9-92281) zero in on one goal: getting your Case tractor back to factory spec. Inside, you get complete engine coverage from cylinder head assembly through crankshaft bearings and piston rod assemblies, a full transmission section covering Tripl Range, Shuttle, and Dual Range variants, plus the entire Case-O-Matic Drive system including torque converter and clutch pressure regulator. Wiring diagrams and hydraulic schematics cover the Eagle Hitch, portable cylinders, and the full testing procedure for your hydraulic system. On the 350, set the carburetor power jet needle to 1-3/4 turns open; on the 500B, dial the idle jet to 7/8 turn open and hold idle speed at 500 RPM. Your machine is down and the clock is running. Pull up this bookmarked PDF on any device, search any spec by keyword, and get to work.
What's Inside This Case 350, 500B, 600B Manual
| System | Pages | Key Topics |
|---|---|---|
| General | 6-17 | Tractor Models, Use of Manual, Lubrication, Splitting Tractor |
| Engine | 18-127 | Service Hints, Cylinder Head Assembly, Timing Gear Cover, Lubricating System, Water Pump and Cooling System, Clutch Assembly, Camshaft, Crankshaft |
| Instruments and Electrical Equipment | 128-137 | Instruments, Electrical Equipment |
| Torque Tube | 138-155 | Main Drive Shaft, Hydraulic Pump and Tachometer Drive, Multiple Plate Clutch, Belt Pulley |
| Transmission | 156-205 | Specifications, Service Hints, Gear Shift Cover, Reverse Idler Gear, Main Drive Shaft, Pinion Shaft, Differential Assembly, Differential Brakes |
| Rear Axle and Final Drive Gears | 206-209 | Removing Rear Axles, Installing Rear Axles, Final Drive Gears |
| Front Axle and Steering Gear | 210-257 | Power Steering |
| Hydraulic System | 258-309 | Service Hints, Hydraulic Pump, Interlock, Control Unit, Eagle Hitch, Portable Cylinders and Hose Connections, Testing Hydraulic System |
| P.T.O. and Rear Mounted Belt Pulley | 310-323 | Independent P.T.O. Case-O-Matic Tractors, Rear-Mounted Belt Pulley Case-O-Matic Tractors, P.T.O. Standard Drive Tractors |
| Case-O-Matic Drive | 324-343 | Oil Reservoir, Oil Supply Pump, Converter Oil Filter, Control Valve and Clutch Pressure Regulator, Torque Converter Assembly, Multiple Plate Clutch |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| 350 | ||
| Carburetor Power Jet Needle Adjustment | 1-3/4" turns open | p. 88 |
| 500B | ||
| Carburetor Idle Jet Adjustment | 7/8" turn open | p. 88 |
Case 350, 500B, 600B Common Problems This Manual Covers
Case 350 engine running rough, lacking power, or failing to start under heavy load
Clean the carburetor assembly and clear any sediment from the fuel filter. Set the power jet needle to exactly 1-3/4 turns open to ensure proper fuel delivery. Check the engine troubleshooting procedures if the weak spark or lack of power persists during heavy operation.
Manual Section: EngineEngine idles rough, misfires, or pulls down heavily when the power take-off is disengaged
Drain the aging fuel tank to prevent carburetor fouling. Adjust the idle speed adjusting screw to 500 R.P.M. and set the idle jet needle to 7/8 turn open. Review the technical specifications to verify proper engine calibration for the 500B model.
Manual Section: EngineTractor engine backfires, stalls out repeatedly, or fails to maintain a consistent idle speed
Inspect the fuel lines for blockage and clean the entire carburetor assembly. Calibrate the idle speed adjusting screw to 500 R.P.M. and set the idle jet to 1-1/4 turns open. Follow the complete engine service procedures to resolve persistent stalling or misfires.
Manual Section: EngineFrequently Asked Questions
What are the torque specifications for Case 500B engine head bolts?
When installing the cylinder head on a Case 500B, first tighten the cylinder nuts evenly to 60-65 ft. lbs. using a torque wrench and T-132 Extension Wrench. Begin at the center stud and tighten outward. Then re-tighten the nuts in the same order to 95-100 ft. lbs. torque.
How do you adjust the gear selector shift lever on Case 350, 500B, or 600B tractors?
To correctly set the gear selector on Case 350/500B/600B, position the shift lever in the control cover (p. 160). Turn the dog point retaining screw down until it bottoms or a slight bind is felt when moving the shift lever. Back the screw up until the lever moves freely, then tighten the jam nut to secure the screw in place. This ensures proper shift engagement without binding.
How do you diagnose and repair hydraulic lift problems on Case 350, 500B, and 600B tractors?
The Hydraulic System chapter (pp. 258-309) covers relief valve adjustment, pump testing, and control valve service for Case 350/500B/600B tractors. If the three-point hitch lifts slowly or won't hold position, check hydraulic fluid level and condition first, then test pump pressure against the specification in this chapter. Inspect the relief valve setting before disassembling the pump or control valve.
What engine overhaul specifications are covered for Case 350, 500B, and 600B tractors?
The Engine chapter (pp. 18-127) provides complete overhaul specifications for Case 350, 500B, and 600B engines. Key specs include cylinder bore and piston clearances, main and rod bearing clearances, valve timing, and governor settings. Always replace head gaskets and rod bolts when reassembling. Consult the General chapter (pp. 6-17) for tool lists and torque tables before beginning any engine disassembly.
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