Case 688 Excavator Service Manual


Covers: Case 688 excavators, serial numbers 11601 & up
Pages: 926
Format: PDF
File size: 384mb
Compatibility: Windows/Mac computers
Notes: Instant digital download only – no printed copy or CD-ROM media.

This professionally reproduced service manual contains over 900 pages of service, repair and troubleshooting procedures for Case 688 excavators with serial numbers 11601 & above. View the PDF service manual on your computer or print off detailed service and maintenance as needed.

Case 688 operator’s manual and parts manual available separately. Please contact us with any requests.



  • Safety, General Information
  • Torque Specs
  • Specifications


  • Engine Removal and Installation
  • Radiator and Oil Cooler
  • Cylinder Head and Valve Train
  • Cylinder Block
  • Lubrication System
  • Cooling System
  • Turbocharger
  • Turbocharger Failure Analysis


  • Fuel System and Filters
  • Fuel Injection Pump and Drive Gear
  • Fuel Injectors


  • Electrical Schematics and Troubleshooting
  • Battery Testing, Maintenance and Booster Battery Connections
  • Starter Motor
  • Alternator


  • Tracks, Rollers and Idlers
  • Track Troubleshooting


  • Drive Motor and Final Drive Transmission
  • Swing Motor and Reduction Gears


  • Hydraulic Troubleshooting
  • Low Pressure Pump
  • High Pressure Pump and Regulator
  • Attatchment Valve Bank
  • Drive Control Valve
  • Option Control Valve
  • Counter Rotation Valve
  • Swing Brake Release Valve
  • Swing Control Valve
  • Anti-Surge Valve
  • Hydraulic Swivel
  • Drive Speed Limiter
  • Drive Brake Release Valve
  • Hand and Foot Valves
  • Hydraulic Oil Tank
  • Attachment Cylinders
  • Hydraulic Pick Hammer Control Valve


  • Upperstructure and Turntable Bearing
  • Boom, Dipper and Bucket
  • Servicing the Cab

How does this work?

It’s simple – after purchasing this manual through our secure checkout, a download¬†link will be sent to the email address you specify at checkout. You have up to 90¬†days to retrieve and save the file. Once saved, the manual is yours for good.

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SKU: CASE-688-SM Categories: , Tags: ,


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