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Part of the Case Repair Manuals.
Need the factory book for your Case 1150B Crawler Loader and Dozer? This 867-page service manual (OEM #9-72547) also covers the 1270 and 1370 Tractor, and it opens straight into engine, fuel system, hydraulics, track and suspension, power train, brakes, electrical, and mounted equipment coverage. You get full hydraulic schematics with flowmeter tests and diversion valve procedures, wiring diagrams for chasing electrical faults, and a troubleshooting section on the transmission oil flow that actually explains what you're seeing instead of guessing. Torque the final drive pinion shaft bolts to 115-125 ft. lbs. (156-169 Nm), and swap those fuel filters every 500 hours or the first sign of lost horsepower. Stop tearing into the final drive on a hunch. It's bookmarked and searchable, so pull it up on your phone in the shop and get straight to the right page.
What's Inside This Case 1150B, 1450 Manual
| System | Pages | Key Topics |
|---|---|---|
| General | 4-27 | Detailed Engine Specifications (Run-In Instructions, Cylinder Sleeves, Piston, Piston Rings) |
| Engine | 28-211 | Run-In Instructions, Detailed Engine Specifications, Cylinder Sleeves, Piston, Piston Rings |
| Fuel System | 212-261 | Fuel System and Filter, Fuel Injection Pumps, Fuel Injectors, Fuel Tank, Lines and Throttle Adjustment |
| Hydraulics | 262-355 | Diagrams, Troubleshooting, Adjustments, Flowmeter Tests, Diversion Valve, Equipment Pump, Equipment Control Valves, Loader |
| Track and Suspension | 356-447 | Track System, Idlers, Track Frame, Suspension System, Guide Levers, Intertrac Rollers |
| Power Train | 448-671 | Transmission Oil Flow, Troubleshooting, Transmission Control Valve, Torque Converter, Drive Shafts, Transmission, Final Drives |
| Brakes | 672-675 | Brake Pedals and Linkage, Parking Brake, Brake Piston, Clutch Plates, Brake Plates |
| Electrical | 676-721 | Wiring Diagram, Troubleshooting, Battery, Starter and Starter Solenoid, Alternator |
| Mounted Equipment | 722-867 | Loader, Power Tilt Dozer, Atp Dozer Blade, W5A Hyster Winch, Ripper, ROPS |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Final drive pinion shaft bolts torque | 115 to 125 ft. lbs. (156 to 169 Nm) | p. 629 |
| Final drive gear shaft bolts torque | 115 to 125 ft. lbs. (156 to 169 Nm) | p. 629 |
| Track rollers lubricant capacity | 10.8 fluid ounces (321 ml) | p. 430 |
| Fuel filters (2) torque | Install until gasket contacts filter head, then hand tighten 1/2 to 3/4 turn. | p. 20 |
| Fuel filter replacement interval (1st and 2nd stage) | Every 500 hours or when loss of engine horsepower is indicated. | p. 213 |
| Cylinder block oil cooler outlet cover screw torque | 35 to 42 ft. lbs. (47 to 57 Nm) | p. 16 |
| Cylinder head cover stud nut torque | 60 to 70 in. lbs. (6.8 to 7.9 Nm) | p. 16 |
| Engine Crankcase Capacity (with filter change) | 15 Quarts | p. 4 |
| Engine Oil Pressure | 45 to 60 PSI | p. 4 |
| Fuel Injectors Opening Pressure (New) | 3200 to 3400 PSI | p. 19 |
| Cylinder Head Bolts Torque | 200 to 210 ft. lbs. | p. 16 |
| Transmission Operating PSI at 2000 Engine RPM | 260 to 290 PSI | p. 558 |
Case 1150B, 1450 Common Problems This Manual Covers
Case 1150B hydraulic pressure drops off during dozer blade operation under load
Check the hydraulics troubleshooting section covering pump and circuit failures around page 273. Run a flowmeter test on the main relief valve. Inspect cylinder seals for scoring and verify system holds 2200 ± 50 psi, replace seals showing visible leakage.
Manual Section: Hydraulics Troubleshooting p. 273Track rides uneven or binds after roller service, tension won't hold between adjustments
Drain and refill each track roller with 10.8 fluid ounces (321 ml) of lubricant per the track and suspension specs on page 430. Verify roller end play by hand before reinstalling, then cycle the machine forward and reverse to seat the track before final tensioning.
Manual Section: Track and Suspension p. 430Engine won't fire after reassembly, cranks fine but no start
Check the engine troubleshooting procedures starting for no-start conditions. Verify injector opening pressure reads 3200 to 3400 PSI on a pop tester, a weak spring or worn nozzle will kill fuel atomization. Confirm cylinder head bolts are torqued to 200 to 210 ft. lbs. before chasing electrical faults.
Manual Section: Engine DiagnosisBatteries run down overnight and starter cranks slow even after charging
Test the charging circuit per the electrical troubleshooting index around page 681. Confirm alternator output meets 24 volts at 15 amperes rated load. Run the starter no load test and expect 75 to 95 amps draw; anything higher points to worn bushings or a dragging armature.
Manual Section: Electrical Troubleshooting p. 681Fuel pump filter clogs repeatedly and engine loses power within a few hundred hours
Replace both fuel filters at the interval on page 213: every 500 hours or sooner if horsepower drops off. Install each filter until the gasket contacts the filter head, then hand tighten 1/2 to 3/4 turn per the torque spec on page 20. Check the fuel tank for water or debris contamination if filters clog early.
Manual Section: Fuel System p. 213Final drive makes grinding noise and leaks oil after track service
Torque the final drive pinion shaft and gear shaft bolts to 115 to 125 ft. lbs. (156 to 169 Nm) as specified on page 629. Refill each final drive with 8 quarts of oil per side and check for metal in the drained fluid, which signals bearing wear needing teardown.
Manual Section: Power Train p. 629Frequently Asked Questions
Why does my Case 1150B lose pressure after warming up?
If the pump output is less than 19 GPM at 2000 Engine RPM after the engine has reached operating temperature, the pump is considered defective. Inadequate pump output can prevent lubricating oil from reaching clutch packs at low engine RPM, potentially leading to the burning up of clutch plates. p. 475
What causes transmission power loss in Case 1150B when warm?
If the engine speed is below the specified RPM or quits during stall tests performed at operating temperature, transmission power loss may be due to a worn, damaged, or improperly adjusted engine. It could also be caused by excessive hydraulic system pressure or damaged/defective parts within the transmission, converter, or hydraulic system. p. 185
Are Case 1150B sprockets and bushings prone to wear?
Yes, sprockets and bushings are prone to wear. The track wear gauge can be used to determine wear on sprockets, rollers, links, shoes, and idler wheels, and parts should be replaced or reconditioned if wear exceeds the limits. Allowing pins and bushings to run to destruction will cause rapid wear on other track system components. p. 363
How to reset hydraulic pressure on Case 1150B?
To reset the hydraulic pressure, drain the hydraulic reservoir until it is level with the lower control valve work ports. Remove the plug on top of the inlet/outlet section, then remove the unloading valve. Adjust the shims as required to achieve the specified pressure, such as 2200 ± 50 psi for the loader main relief valve. p. 281
What do I get after purchasing this Case 1150B manual?
Instant PDF download. You get the full 867-page searchable Service Manual immediately after payment. Open it on your laptop, tablet, or phone right in the shop.
Can I print specific sections of this Case 1150B manual?
Yes. The PDF has no DRM restrictions, so print any page or section you need for your shop. Works with any standard printer.
Does this Case 1150B manual cover the hydraulic system?
Yes, this Case 1150B Service Manual includes hydraulic system diagrams, circuit schematics, and component specifications.
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