Part of the Case Repair Manuals.
Need factory-level guidance for your Case 150-190, T90, 2310, 2510, or 2712 compact tractor? This 202-page service manual (OEM #9-77981) covers every major system from engine block to transmission. You get wiring diagrams for the 150-190 and T90, hydraulic schematics covering the pump, control valve, and orbital motor, and a full troubleshooting section, with engine specs broken out separately for the 2310/2510-HH100 and 2712-HH120 variants. Open to the fuel system chapter for carburetor and fuel pump procedures, or jump straight to the transmission section: removal, disassembly, inspection, assembly, reinstallation. If your hydraulic lift is dragging, check control valve leakage at the 1/2 GPM limit, then back the relief valve off a half turn to drop pressure 100 PSI. Your machine's down. Bookmarked by section and keyword-searchable on any device: grab your tablet, walk to the tractor, and get back to work.
Complete the set for your 150-190, T90, 2310…
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What's Inside This Case 150-190, T90, 2310, 2510, 2712 Manual
| System | Pages | Key Topics |
|---|---|---|
| Specifications | 9-32 | Engine, Electrical, Wiring Diagram, 150-190, T90 |
| Engines | 33-126 | Assemblies Contained in the Engine Block, 2310 and 2510-HH100, 2712-HH120, Electrical, Wiring Diagram, Carburetor |
| Fuel System | 127-140 | Carburetor, Fuel Pumps |
| Hydraulic System | 141-168 | How It Works, Hydraulic Pump, Control Valve, Orbital Motor |
| Steering | 169-186 | Steering System, Front Axles |
| Transmission | 187-202 | Introduction, Removal, Disassembly, Inspection, Assembly, Installation |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Control Valve Leakage Limit | more than 1/2 GPM | p. 152 |
| Relief Valve Pressure Adjustment (Decrease) | one half turn (only) for 100 PSI reduction, or 200 PSI per shim | p. 153 |
| Starter-Generator Drive Belt Deflection | 1/4" | p. 20 |
| 150-190, T90 | ||
| Carburetor High Speed Adjustment (Kohler engines) | Approximately two turns | p. 133 |
| Carburetor Idle Mixture Adjustment (Kohler engines) | approximately 1-1/4 turns from the closed position | p. 133 |
| K241 engine | ||
| K241 Piston Displacement | 23.9 Cubic Inches | p. 11 |
| K301 engine | ||
| K301 Piston Displacement | 29.07 Cubic Inches | p. 12 |
| K241, K301 engines | ||
| Cylinder Head Bolts Torque (K241/K301) | 33 Ft. Lbs. | p. 13 |
| Spark Plug Torque (K241/K301) | 27 Ft. Lbs. | p. 13 |



















