Fiat Allis 21C Dozer Service Manual

Original price was: $510.25.Current price is: $114.70.

  • Covers Fiatallis 21C Crawler Dozer (AC HD 21C)
  • P/N 73108392
  • 1,057 pages
  • Downloadable PDF format
  • Bookmarked, searchable, printable
  • 202mb file size
  • Works with Windows/Mac/Tablet/Mobile

The Fiat Allis 21C service manual set download includes over 1,000 pages of technical specifications, step-by-step instructions, illustrations and schematics to guide mechanics through mechanical, electrical and hydraulic repairs. The complete 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 Fiat 21C crawler dozer. In addition to all machine systems, diesel engine/fuel repair information is included. This manual can be downloaded instantly to your computer, tablet or smartphone.

For the operation and maintenance manual, click here.

Free 21C Spec Sheet.


Engine (21000 Mark II)

  • Description and Specifications
  • Cooling System
  • Engine Electrical
  • Fuel System and Accessory Drive
  • Air Cleaner and Intake Manifold
  • Exhaust Manifold and Turbocharger
  • Valves, Valve Operating Mechanism and Cylinder Heads
  • Front End and Gear Train
  • Flywheel and Ring Gear; Flywheel Housing and Crankshaft Rear Oil Seal
  • Lubricating System
  • Camshaft and Camshaft Bearings
  • Pistons, Piston Rings, Connecting Rods and Connecting Rod Bearings
  • Crankshaft and Crankshaft Gear, Main Bearings and Main Bearing Caps
  • Cylinder Block and Cylinder Sleeves
  • Engine Removal and Installation
  • Engine Disassembly and Assembly
  • Fits and Tolerances; Standard Torque Wrench Specifications and Stud Heights; Specific Application Torque Values
  • Troubleshooting
  • Fuel and Lubricant Specifications

Airesearch T-18 Turbocharger

  • Description and Operation
  • Maintenance
  • Removal, Disassembly, Cleaning, Inspection, Assembly and Installation
  • Troubleshooting
  • Service Tools


  • General Description
  • Lubricant Specifications, Capacity and Service
  • Troubleshooting
  • Pressure and Flow Checking
  • Hydraulic System Components
  • Input Clutch and Torque Converter
  • Transmission Mechanical
  • Bevel Gear and Shaft
  • Drive Shaft Universal Joint
  • Fits and Tolerances
  • Service Tools

Steering Clutches and Brakes

  • General Description and Oil Flow Schematics
  • Steering and Brake System Lubricant Specifications, Capacity and Service
  • Troubleshooting
  • Pressure Checking
  • Hydraulic System
  • Steering Clutches
  • Brakes
  • Fits and Tolerances
  • Service Tools

Final Drives

  • General Information
  • Lubricant Specifications and Capacity
  • Troubleshooting
  • Final Drive Repair
  • Final Drive Lubrication System
  • Fits and Tolerances
  • Service Tools

Undercarriage and Tracks

  • General Description
  • Lubricant Specifications and Capacity
  • Prolonging Undercarriage Lift
  • Undercarriage Alignment Checks
  • Track – Unsealed
  • Track – Sealed and Lubricated
  • Track Idlers
  • Track Carrier Rollers
  • Track Rollers
  • Track Release
  • Frame
  • Oscillating Beam
  • Sprocket Segments
  • Rebuild Dimensions
  • Fits and Tolerances
  • Service Tools

Hydraulics and Hydraulics w/ Power Assist

  • Hydraulic System Specifications, Capacity and Service
  • Hydraulic Component Functions and Circuit Oil Flows
  • Troubleshooting
  • Hydraulic Pump
  • Hydraulic Control Valves
  • Hydraulic Cylinders
  • Dozer and Ripper Removal and Installation
  • Torque Values
  • Service Tools

Electrical System

  • General Description
  • Troubleshooting
  • Charging Circuit
  • Starting Circuit
  • Accessory Circuits
  • Batteries
  • Electrical Schematics


  • General Description
  • Tilting Cab
  • Operating Cab Accessories
  • Services, Specifications and Capacities
  • Cab Electrical
  • Glass
  • Insulation
  • Air Conditioning
  • Tilt Cylinder Repairs
  • Specified Torques and Adjustments
  • Service Tools

Example Service Manual PDF Download

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SKU: FA-21C-SM Categories: , Tag:


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