Komatsu 20F, 20FS Wheel Loader Service Manual PDF



  • Covers Komatsu/Hanomag 20F, 20FS Wheel Loaders
  • 324 pages
  • Instant PDF Download
  • 23mb file size
  • Printable
  • Compatible with Windows/Mac/Tablet

This service manual covers servicing of Komatsu 20F, 20FS wheel loaders. It includes detailed OEM specifications, data, illustrations and step-by-step procedures to guide the mechanic with correctly servicing the machine to the manufacturer’s specifications. The service manual is also known as the workshop manual is the most comprehensive available and is offered in a convenient and affordable downloadable PDF format.

Service Manual PDF Download Contents:

  • Preface
    Description of the machine
    Machine identification
    Noise emission levels; Vibration levels
    Dimensions, weights
    Loading and bracing
    Safety precautions
    Instruments and controls
  • Operation
    Loader hydraulics
    Control levers
    Arm rest; Locking the control levers
    Bucket position indicator
    Quick-attach coupler
    Quick-attach coupler (4-in-1 bucket)
  • Running-in period
    Inspection and maintenance chart
    Lubricant, fuel and coolant specifications; refill capacities
  • Engine
    Oil level
    Oil change; Oil filter element; Crankcase breather
    Valve clearance; Fuel injectors
  • Fuel system
    Fuel tank
    Water separator
    Fuel filter
    Priming the fuel system
  • Cooling system
    Coolant level
    Changing the coolant
    Cleaning the radiator
  • Air cleaner
    Main filter element
    Safety element
  • Battery
    Electrolyte level and state of charge
  • Front axle Oil level; Oil change
    Rear axle Oil level; Oil change
    Transfer gear Oil level; Oil change
  • Service brake
    Oil level
    Changing the oil; Bleeding
    Brake disc wear
  • Parking brake adjusting
  • Hydraulic system
    Oil level; Adding oil; Pressurizing the oil tank
    Oil change
    Filter elements
  • Lubricating the machine
    Articulation joint, steering cylinder; Door hinges
    Universal shafts
  • Lubricating the equipment
    Loader arms; Bucket cylinder; Tilt lever;
    Tilt link; Lift cylinder; Quick-attach coupler
  • System pressures
  • Technical data
  • Winter operation
    Cleaning the paintwork
    Long-term storage of the machine
  • Electrical system
    Battery master switch
    Electrical system: Fuses; Relays
    Wiring diagram
  • Engine
    Test certificate
    View of engine
    Technical data
    Injection pump adjustment and cylinder head screw tightening sequence
    Engine lubrication system
    Tightening torques
  • Drive System
    Layout of drive system
    Description of closed oil circuit
    Hydraulic circuit diagram of drive, steering and working hydraulics
    Circuit diagram of drive hydraulic system
    Variable-displacement hydraulic pump
    Variable-displacement hydraulic pump with valves
    Regulating valve and boost pressure relief valve
    Adjusting cylinder with directional control valve
    Valve for hydraulic pressure cut-off and drive pressure safety valve
    Variable-displacement hydraulic motor
    Inch valve
  • Steering System
  • Loader Hydraulics
  • Repair instructions for door and side windows
  • Axles/Brakes
  • sample pages


There are no reviews yet.

Be the first to review “Komatsu 20F, 20FS Wheel Loader Service Manual PDF”

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Category: Tag: