Case 850C, 855C Dozer Service Manual

Original price was: $489.32.Current price is: $84.50.

  • Covers Case 850C and 855C Dozers, built 1981-1985
  • P/N 9-69230
  • 1,469 pages
  • Downloadable PDF format
  • Searchable, printable
  • 432mb file size
  • Works with Windows/Mac/Tablet/Mobile

The Case 850C and 855C service manual includes technical specifications, instructions, illustrations and schematics to guide mechanics through mechanical, electrical and hydraulic repairs. The service manual was digitally reproduced from the original 1,400+ page dealer manual into a clear, searchable digital PDF format and is ideal for DIY or professional mechanics repairing or rebuilding the crawler dozer. This manual can be downloaded instantly to your computer, tablet or phone immediately after checkout.

Latest edition.



  • Torque Specifications
  • Maintenance and Lubrication
  • Detailed Engine Specifications


  • Engine Stall Tests
  • Engine Removal and Installation
  • Engine Accessories (Air Cleaner, Exhaust Pipe, Radiator, Turbocharger Removal and Installation, and Cold Start System)
  • Engine Tune-Up
  • Cylinder Head, Valve Train, and Camshaft
  • Cylinder Block, Sleeves, Pistons, and Rods
  • Crankshaft, Main Bearings, Flywheel, and Oil Seals
  • Lubrication System with Two Gear Balancer and Oil Pump
  • Cooling System
  • Turbocharger
  • Engine Diagnosis
  • Reconditioning Engine Cylinder Block
  • Turbocharger Failure Analysis


  • Fuel Lines and Fuel Tank
  • Fuel System and Filters
  • Robert Bosch Fuel Injection Pump
  • 17 mm Fuel Injectors


  • Electrical System Specifications and Troubleshooting
  • 850C and 855C Wiring Diagram
  • Gauges, Tachometer, and Hourmeter
  • Batteries
  • Starter and Starter Solenoid
  • Alternator


  • Track and Track Frame
  • Idler, Track Adjuster, and Recoil Housing
  • Sprocket
  • Carrier Rollers
  • Track Rollers


  • Transmission/Torque Converter Diagram, Maintenance, and Troubleshooting
  • Transmission Oil Flow Diagrams and Operation
  • Charging Pump
  • Transmission Control Valve
  • Torque Converter
  • Transmission
  • Final Drives
  • Transmission Controls
  • Drive Shafts



  • Hydraulic Diagrams, Maintenance, Troubleshooting, and Pressure Checks
  • Cleaning the Hydraulic System
  • Hydraulic Pump
  • Equipment Control Valve
  • Cylinders
  • Backhoe Control Valve
  • Stabilizer Control Valve


  • Loader
  • Blade on Dozer Machines
  • Ripper
  • Cab and Canopy
  • 35A Backhoe
  • Winch

Example Service Manual PDF Download

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