Case W18, W20 Wheel Loader Service Manual (PIN 9123139 & Below)

Original price was: $249.61.Current price is: $44.50.

  • Covers Case W18, W20 Wheel Loader (PIN 9123139 and Below)
  • P/N 9-71698
  • 728 pages
  • Downloadable PDF format
  • Searchable, printable
  • 68mb file size
  • Works with Windows/Mac/Tablet/Mobile

The Case W18 and W20 service manual for PIN numbers 9123139 and below covers specifications, step-by-step procedures and detailed illustrations to help professional and DIY mechanics with mechanical, electrical and hydraulic repairs on the loader. Chapters generally cover specifications, removal and installation, disassembly and assembly, and troubleshooting checks where applicable. The service manual was sourced from original dealer materials and reproduced in a high quality PDF format for your computer, tablet or phone.



  • Detailed Specifications
  • Maintenance and Lubrication


  • General Engine Service and Removal
  • Engine Air Cleaner and Spark Arrester
  • Engine Diagnosis
  • Engine Tune-ups
  • Cylinder Head, Valve Train and Camshaft
  • Cylinder Block, Sleeves, Pistons and Rods
  • Crankshaft, Main Bearings, Flywheel and Oil Seal Replacement
  • Lubrication System
  • Cooling System


  • Fuel System and Filters
  • Robert Bosch Fuel Injection Pumps
  • Roosa Master Fuel Injectors
  • Electric Fuel Pump
  • Fuel Tank and Fuel Lines


  • Flow Diagram, General Service, Exploded Views, Trouble Shooting Chart and Pressure Checks
  • Late Production Hydraulic Diagrams and Hydraulic Systems, Testing Hydraulic System with Flowmeter, Testing Secondary Relief Valves with Hand Pump
  • Loader and Steering Pump
  • Loader Control Valves
  • Loader Tilt and Lift Cylinders, Steering Cylinders


  • Flow Diagram, Troubleshooting Chart, Exploded Views, Pressure Checks
  • Steering Valve and Flow Control Valve
  • Chassis Pivots


  • Allison Transmission
  • General Transmission Service and Removal
  • Differential and Planetaries
  • Rear Axle Trunnion Center Support Bearing and Driveshafts


  • Air System Diagram and Operating Principles
  • Brakes and Air System
  • Parking Brake Adjustment


  • Wiring Diagrams
  • Electrical System
  • 30 Amp Alternator


  • Bucket Cutting Edges and Loader Frame
  • ROPS

Example Service Manual PDF Download

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