Case 850D, 855D Dozer Service Manual

Original price was: $472.65.Current price is: $91.50.

  • Covers Case 850D, 855D Crawler Dozer
  • P/N 8-42191
  • 1,422 pages
  • Downloadable PDF format
  • Bookmarked, searchable, printable
  • 377mb file size
  • Works with Windows/Mac/Tablet/Mobile

The Case 850D and 855D service manual includes specifications, step-by-step instructions and accurate illustrations to aid mechanics with any mechanical, electrical or hydraulic repairs. The complete service manual was carefully reproduced from the original dealer manual into a clear, searchable and printable PDF format and is essential for mechanics repairing or rebuilding the dozer to the manufacturer’s standards.

Latest edition w/ large format schematics.



  • Safety Rules, Service Manual Introduction
  • Torque Specifications
  • Maintenance and Lubrication
  • Detailed Engine Specifications


  • Engine and Radiator Removal and Installation
  • Engine Accessories – Air Cleaner, Ether Injection System, Muffler, Turbocharger, and Torque Converter
  • Engine Stall Tests
  • Cylinder Head and Valve Train
  • Cylinder Block, Pistons, Rods, Camshaft, Main Bearings, Oil Seals, Flywheel and Crankshaft
  • Lubrication System
  • Cooling System
  • Turbocharger
  • Turbocharger Failure Analysis


  • Fuel Lines, Fuel Tank, and Engine Controls
  • Fuel System and Filters
  • Bosch Fuel Injection Pump, Drive Gear, and Timing
  • Fuel Filters


  • Removal and Installation of Electrical Components
  • Electrical System Specifications and Troubleshooting
  • Wiring Diagrams
  • Gauges
  • Batteries
  • Starter and Starter Solenoid
  • Delco-Remy Alternator
  • 45 Amp Alternator A186124 or A187916


  • Inspection of Track System Components
  • Case Lubricated Track
  • Standard Track and Track Frame
  • Idler, Track Adjuster, and Recoil Housing
  • Sprocket
  • Carrier Roller
  • Track Rollers


  • Transmission/Torque Converter Diagram and Troubleshooting
  • Charging Pump
  • Transmission Control Valve
  • Modulator Valve
  • Removal and Installation of Torque Converter
  • Torque Converter
  • Transmission
  • Final Drive
  • Transmission Controls
  • Drive Shaft


  • Brake Pedals, Removal and Installation of Master Cylinder, Adjustment and Removing Air From Brake System
  • Master Cylinder
  • Brake


  • Hydraulic Diagrams, Troubleshooting and Pressure Checks
  • Cleaning the Hydraulic System
  • Rexroth Hydraulic Pump
  • Vickers Hydraulic Pump
  • Equipment Control Valve
  • Cylinders
  • Backhoe Control Valve
  • Removal and Installation of Stabilizer Control Valve
  • Stabilizer Control Valve


  • Air Conditioning Troubleshooting
  • Air Conditioning System
  • Loader
  • Blade on Dozer Models
  • Ripper
  • ROPS Cab and Canopy
  • Operators Seat and Seat Belt
  • Suspension Seat
  • Backhoe
  • Winch


  • Wiring Diagram
  • Hydraulic Schematic for Dozer
  • Hydraulic Schematic for Loader

Example Service Manual PDF Download

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