Case 1085B, 1086B Cruz-Air Excavator Service Manual

Original price was: $313.71.Current price is: $79.99.

  • Covers Case 1085B, 1086B Cruz-Air Excavators
  • P/N 8-44630
  • 919 pages
  • Downloadable PDF format
  • 213mb file size
  • Works with Windows/Mac/Tablet/Mobile

The Case 1085B and 1086B service manual includes specifications, step-by-step instructions and accurate illustrations to aid mechanics with any mechanical, electrical or hydraulic repairs. The complete 900+ page service manual was carefully reproduced from the original dealer manual and is a must for mechanics repairing or rebuilding the 1085B or 1086B to the manufacturer’s standard. This service manual is also referred to as the shop manual or repair manual. View the PDF manual on your computer or print off pages as needed.



  • Safety, Introduction, and Standard Torque Specifications
  • Maintenance and Lubrication
  • Detailed Engine Specifications


  • Engine and Radiator Removal and installation
  • Engine Accessories (Air cleaner, Cold Start System, Muffler)
  • Cylinder Head and Valve Train
  • Cylinder Block, Pistons, Rods, Camshaft Main Bearings, Oil Seals, and Flywheel
  • 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 Injectors


  • Removal and Installation of Starter and Alternator
  • Electrical System Specifications and Troubleshooting
  • Wiring Diagrams
  • Batteries
  • Starter
  • Alternator
  • Collector Ring


  • Steering System Troubleshooting
  • Steering Control Valves
  • Steering Relief Valve and Steering Reversal Valve
  • Steering Axle and Tie Rod
  • Auxiliary Steering


  • Troubleshooting and Pressure Checks
  • Torque Converter
  • Transmission
  • Transmission Controls
  • Drive Shafts
  • Axle Differential
  • Axle Planetaries
  • Axle Removal and and Installation
  • Wheels and Tires


  • Troubleshooting and Air System Schematic
  • Air Compressor and Governor
  • Air Reservoir and Relief Valve
  • Brake Valve, Relay Valve, and Pressure Reducing Valve
  • Brake Actuator, Digging Brake Control Valve, and Double Check Valve
  • Parking Brake Actuator, Parking Brake Valve, and Quick Release Valve
  • Solenoid Valves and Air Cylinders for Transmission Range, Outriggers, and Fast Crowd
  • Air Swivel
  • Alcohol Evaporator
  • Brake Shoes and Wheel Cylinders
  • Swing Brake


  • Removal and Installation of Hydraulic Components
  • Hydraulic System Specifications and Troubleshooting
  • Hydraulic Pump for Steering and Outside Control Valve
  • Hydraulic Pump for Outrigger and Inside Control Valve
  • Inside and Outside Control Valves
  • Outrigger Control Valve
  • Swing Motor
  • Boom Hydraulic Circuit
  • Arm Hydraulic Circuit
  • Tool Hydraulic Circuit
  • Hydraulic Swivel
  • Power Sensing Valve
  • Cylinders


  • Controls and Linkages
  • Outriggers
  • Swing Gearbox and Swing Brake
  • “E” and “Y” Boom
  • Attachments
  • Turntable, Bearing, and Related Parts


  • Electrical Wiring Diagram
  • Hydraulic Schematic

Example from one of our manuals (actual manual contents may vary):

Example Service Manual PDF Download

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