Case 980B Excavator Service Manual

Original price was: $229.75.Current price is: $48.70.

  • Covers Case 980B Excavator
  • P/N 9-66739
  • 654 pages
  • Downloadable PDF format
  • 102mb file size
  • Works with Windows/Mac/Tablet/Mobile

The Case 980B Service Manual PDF includes over 650 pages of technical specifications, step-by-step instructions, illustrations and schematics to guide mechanics through mechanical, electrical and hydraulic repairs. The service manual was digitally reproduced from the original dealer manual into a clear, searchable PDF format and is ideal for mechanics repairing or overhauling the Case 980B excavator. In addition to all machine systems, engine/fuel repair information is included. This manual can be downloaded instantly to your computer, tablet or smartphone.

Latest edition.



  • Detailed Engine Specifications
  • Detailed Fuel System Specifications
  • Maintenance and Lubrication
  • Torque Specs
  • General Cleaning Instructions
  • Safety


  • Engine Diagnosis
  • Engine Tune-Up
  • Cylinder Head, Valve. Train, Backlash and Adjustment
  • Cylinder Block, Sleeves, Pistons and Rods
  • Crankshaft, Main Bearings, Flywheel and Oil Seal Replacement
  • Lubricating System
  • Air Cleaner
  • Cooling System
  • Turbocharger System
  • Turbocharger Failure Analysis


  • Fuel System and Filters
  • Fuel Injector Pumps
  • Fuel Injectors
  • Fuel Tank, Fuel Lines, and Fuel Storage


  • Hydraulic System Maintenance
  • System Description, Diagnostic Tests and Checks
  • Hydraulic Diagrams
  • Hydraulic Pump
  • Control Valves
  • Servicing the Hydreco Valves
  • Swing Motor Circuit, Swing Motor, Crossover Relief Valve
  • Hoist Cylinder Circuit
  • Crowd Cylinder Circuit
  • Tool Cylinder Circuit
  • Leveler Circuit, Leveler Lock Valve


  • Track Drive Circuits, Drive Motors,
  • Drive Range Solenoid Valve, Hydraulic
  • Swivel and Inner Swivel
  • Power Sensing Valve
  • Monoblock Valve
  • Hydraulic Cylinders


  • Track Frame
  • Track Service
  • Removal and Installation
  • Rollers
  • Idler Wheel
  • Adjustment Cylinder
  • Sprockets


  • Final Drive Transmission and Digging Brake


  • Wiring Diagram
  • System Description and Troubleshooting
  • Batteries
  • Starter, Starter Solenoid and Magnetic Switches
  • Alternator


  • Swing Gearbox and Brake
  • Procedure for Assembly of Swing Gear Box
  • Booms and Tool
  • Carbody and Leveler
  • Turntable Swing

Example Service Manual PDF Download

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SKU: CASE-980B-SM Categories: , Tag:

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