Part of the Case Repair Manuals.
This 942-page Case 1150 Crawler Shop Manual (OEM #9-72483) covers the A401 and B401 engines, T593 transmission, and undercarriage on your crawler dozer, plus crossover coverage for 1270 and 1370 Tractors, 2470 Tractors, and the Model 34 and 36 Backhoes. Open it up and you get complete wiring diagrams for the electrical system, hydraulic schematics for the loader and dozer control valves, and a full troubleshooting section for the torque converter. Set the A16690 loader pump to 44 GPM at 1800 RPM and 2000 PSI, then torque the pump tie bolts to 125 ft-lbs before you button it back up. No more flipping through three different parts books trying to match a pump casting number to the right spec. Bookmarked by system so you jump straight to Engines, Hydraulics, or Track and Suspension without scrolling past 900 pages, and it opens fine on a phone in the shop.
What's Inside This Case 1150 CRAWLER Manual
| System | Pages | Key Topics |
|---|---|---|
| General | 3-46 | Engine Removal, Cooling System, Engine Air Intake System |
| Engines | 47-314 | A401 Engine (Cylinder Heads, Valve Systems, Rocker Arms, Decompressor, Engine Block, Servicing the Front Mounted Oil Pump) |
| Fuel System | 315-404 | Fuel Injectors - Case Powrcel Fuel Injection Pump, Fuel System and Filters, Fuel Injection Pump, Fuel Injectors |
| Hydraulics | 405-536 | Equipment Pump A16690, D35994, Equipment Pumps D40285, D43363, D43382, Loader and Dozer Control Valves, Hydraulic Cylinders, Hydraulic Cylinders for Model 34 Backhoe |
| Track and Suspension System | 537-612 | Track Plates and Links, Track Service and Maintenance, Track Adjustments, Idler Wheel, Track Rollers, Sprockets |
| Power Train | 613-676 | T593 Transmission and Final Drives, Torque Converter Troubleshooting |
| Electrical System | 677-734 | Electrical System and Instruments |
| Mounted Equipment | 735-942 | Front Counterweight, Rear Counterweight, Drawbars, Undercarriage Guards |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Hydraulic pump (A16690 loader models) Rated capacity | 44 G.P.M. @ 1800 R.P.M. @ 2000 P.S.I. | p. 408 |
| Hydraulic pump (D35994 dozer models) Rated capacity | 31 G.P.M. @ 1800 R.P.M. @ 2000 P.S.I. | p. 408 |
| Oil Pump Relief Valve Spring Total Coils | 13 | p. 294 |
| Oil Pump Relief Valve Spring Wire Thickness | .067" | p. 640 |
| Clutch shaft end play | .010" to .014" | p. 614 |
| Clutch Springs No. of Coils | 9 | p. 640 |
| Hydraulic oil level (cause of sluggish movement) | too low | p. 479 |
| Hydraulic oil filter (cause of sluggish movement) | Partially restricted | p. 479 |
| Torque Converter Operating Temperature (maximum) | 250° F. | p. 660 |
| Torque Converter Temperature Gauge (normal/green zone) | 140° to 250° F. | p. 695 |
| Engine Oil Capacity (with filter change) | 15 Qts. | p. 3 |
| Engine Oil Pressure (Rated Speed) | 45 to 55 Pounds | p. 3 |
Case 1150 CRAWLER Common Problems This Manual Covers
Case 1150 crawler hydraulic pressure loss, bucket and loader arms lift sluggishly under load
Check hydraulic oil level first; page 479 flags low oil, a restricted filter, or low engine speed as common causes. Run the flow test on page 533: pump output under 75% of rated capacity (about 14.0 GPM at high idle) confirms a worn pump. An erratic flow gauge needle per page 527 points to an air leak, not the pump.
Manual Section: Hydraulic System Testing & Troubleshooting (General) p. 479Torque converter running hot, temperature gauge reads in the red zone during operation
Watch the temperature gauge: page 695 marks 140 to 250°F as normal and 250 to 300°F as the red zone. Page 660 lists the usual causes: a restricted oil cooler or lines, low oil level, or a worn charging pump. Converter oil must not exceed 250°F per page 33; if it does, flush the cooler lines before condemning the converter itself.
Manual Section: Transmission & Torque Converter Troubleshooting p. 695Torque converter screen plugs repeatedly, requiring cleaning every few hundred hours during normal operation
Pull the torque converter screen and clean it in solvent whenever you check oil temperature; a plugged screen mimics the low-oil-level and worn-charging-pump symptoms on page 660. Check the maintenance schedule on page 38 for the correct interval, and refill to the capacity on page 34. Repeated plugging within a few hundred hours points to metal debris upstream.
Manual Section: Transmission & Torque Converter Troubleshooting p. 660Shift solenoid failure locks up the transmission and won't shift under load
Check continuity on the shift solenoid coil with the machine off; open or shorted windings won't energize the clutch pack, locking the transmission in gear. Verify battery voltage reaches the solenoid connector under load, not just at the battery post. If voltage is present but it still won't shift, pull the valve body and check for stuck clutch pack pistons before replacing the solenoid.
Manual Section: Electrical System TroubleshootingWorn clutch pack makes transmission slip under load or shift harshly between ranges
Measure clutch shaft end play with a dial indicator; spec is .010 to .014 inch per page 614. Add or remove shims per the procedure on page 652, using .012 inch gaskets and allowing .002 inch for crush per page 652. End play beyond spec means worn clutch plates or a collapsed spring; replace the pack rather than shimming around it.
Manual Section: Transmission & Torque Converter Troubleshooting p. 614Frequently Asked Questions
What are the torque specifications for the main bolts on a Case 1150C crawler?
The torque specifications for the crankshaft main bearing cap retaining bolts on a Case 1150C crawler are 145 to 155 ft. lbs. (197 to 210 Nm) without hardened washers, and 195 to 215 ft. lbs. (264 to 292 Nm) with hardened washers. p. 268
What are the replacement specifications for the hydraulic pump on a Case 1150C crawler?
The hydraulic pump specifications for a Case 1150C crawler vary by model. For D40285 (S/N 7107909 to 7108999), the rated output is 47 gpm @ 2000 rpm @ 2000 psi. For D43382 (after S/N 7108999), the rated output is 49 gpm @ 2000 rpm @ 2000 psi. The tie bolt torque is 125 foot pounds (17 m-kg). p. 425
What are the replacement specifications for the pressure relief valve in the hydraulic system of a Case 1150C crawler?
The pressure relief valve settings for the hydraulic system vary by function. The Main Relief is 1550-1650 PSI. Secondary relief for the "B" port is 2000-2350 PSI (2300-2650 PSI manufacturer's spec), and for the Dump secondary relief "A" port is 850-1050 PSI (1150-1350 PSI manufacturer's spec). p. 447
What is the engine oil capacity with a filter change for the Case 1150 Crawler?
The engine crankcase capacity for the Case 1150 Crawler is 14 quarts. When performing an oil change with a new filter, the capacity is 15 quarts. p. 3
How will I receive this Case 1150 Crawler Shop Manual?
This is a 942-page searchable PDF ready for immediate download. Works on any device, so pull it up on your phone while you're under the hood. No shipping, no waiting.
Am I able to print pages from this Case 1150 Crawler manual?
Absolutely. No DRM or copy protection. Print the whole manual or just the pages you need. Any home or office printer works.
Are there hydraulic schematics in this Case 1150 Crawler manual?
Yes, complete hydraulic schematics with flow diagrams, valve configurations, and pressure specifications are included.
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