Case 750L & 850L Crawler Dozer Repair Manual 2008 – Publication 87728445

Description

Case 750L & 850L Crawler Dozer Repair Manual – Publication 87728445

This is the complete Case repair manual for the 750L and 850L crawler dozers, published under document number 87728445 and dated 2/28/2008. Spanning 1,512 pages, it covers the entire machine – from the primary and secondary hydraulic power systems and electrical distribution through the engine, fuel and injection system, hydrostatic transmission, final drives, service and parking brakes, undercarriage, operator platform, and dozer blade. Every procedure is written directly against the 750L and 850L platform and organised using the Case ICE coding system, so chapters, specifications, and fault codes can be located quickly during a repair.

File Details

• Manual type: Repair / Service Manual
• Brand: Case
• Models covered: 750L, 850L crawler dozers
• Publication number: 87728445
• Publication date: 2/28/2008
• Language: English
• File format: PDF
• Page count: 1,512

Chapters Covered

• Introduction – Basic instructions, general specification, conversion factors, hydraulic contamination
• Distribution Systems (A) – Primary hydraulic power system (relief valve, stack valve, hydraulic pump), secondary hydraulic power system, electrical power system, lighting system, fault codes
• Power Production (B) – Engine, fuel and injection system, air intake system, engine coolant system, lubrication system, starting system
• Power Train (C) – Fixed coupling power coupling, hydrostatic transmission (pumps, motors, charge pump, electrical control)
• Travelling (D) – Final drive, hydraulic service brake, hydraulic parking brake, wheels and tracks
• Body and Structure (E) – User controls and seat, operator seat, user platform (ROPS tilt/lower), heating system, air-conditioning system, heating/ventilation/air-conditioning, safety accessories
• Tool Positioning (G) – Lifting, tilting, swinging (control valve and cylinder service)
• Working Arm (H) – Single arm tool attachment lift
• Tools and Couplers (J) – Non-articulated digging tools (ripper), landscaping dozer blade

IMAGES PREVIEW

What This Manual Gives a Technician

The Case 750L and 850L repair manual is built around the real service workflow: technical data and specifications, functional descriptions of how each system works, step-by-step removal and installation procedures, disassembly and assembly sequences, visual inspection criteria, pressure tests, electrical tests, and diagnostic fault codes. Hydraulic sections include relief valve pressure testing and setting, stack valve flow testing, hydraulic pump disassembly and reassembly, and cleaning/decontaminating procedures for the whole hydraulic circuit. Electrical coverage extends from charging and cranking circuits through fuse and relay block testing, connector pinouts, wiring harness schematics, and alternator, battery, and starter diagnostics. Engine fault codes, hydrostatic transmission fault codes, and instrument cluster diagnostics are all listed with causes and step-by-step solutions.

Detailed Coverage Highlights

• Hydraulic contamination diagnosis, cleaning, and system flushing
• Main relief valve pressure test, adjustment, disassembly, and assembly
• Stack valve flow test, removal, disassembly, and assembly
• Hydraulic pump removal, disassembly, visual inspection, and assembly (with and without PTO)
• Electrical schematic frames covering charging, cranking, power relays, fuse block, brakes, pumps and motors, engine control unit, and ground connections
• Engine fault codes for coolant temperature, oil pressure, fuel temperature, boost pressure, rail pressure, injectors, crankshaft and camshaft sensors, and ECM supply voltages
• Hydrostatic transmission fault codes for pump solenoids, motor solenoids, speed sensors, foot pedal potentiometer, idle validation switch, parking brake, and CAN communication
• Final drive removal, disassembly, visual inspection, assembly, and preliminary test
• Service brake and parking brake hydraulic service, including piston and friction plate replacement
• Track tension adjustment, track chain wear measurement, and undercarriage component service
• ROPS removal, installation, tilt/lower procedures, and visual inspection
• Operator seat air and mechanical suspension service
• Ripper and dozer blade removal and installation

Who This Manual Is For

This Case 750L & 850L repair manual suits equipment owners performing their own maintenance, independent mechanics servicing Case crawler dozers, and fleet workshops that need a single reliable reference for the 750L and 850L platform. Because it combines hydraulic schematics, wiring diagrams, exploded views, torque values, capacities, and fault-code troubleshooting in one document, it removes the guesswork from diagnosis and repair – you are working from the same specifications the machine was built to.

Instant PDF Delivery

The manual is delivered as a downloadable PDF immediately after purchase – no shipping, no waiting, no physical book to store. Open it on a laptop, tablet, or phone in the workshop and print only the pages you need. Whether you are chasing a hydraulic pressure fault, rebuilding a final drive, or tracking down an electrical code on a 750L or 850L crawler dozer, this Case repair manual gives you the correct procedures, specifications, and diagnostic data to get the job done right.