Volvo EC420 Åkerman Excavator Repair Service Manual

Table of Content EC420 Åkerman Service Information

• GENERAL
  • DESCRIPTION, COMPLETE MACHINE
    • General
  • SPECIFICATIONS
    • General
  • TRANSPORT INSTRUCTION.; STORAGE INSTRUCTION; OPERATING INSTRUCTION
    • General

• STANDARD PARTS, SERVICE
  • LUBRICANT; FUEL; OTHER FLUID
    • General
  • SERVICE
    • Maintenance
  • GENERAL
    • Safety equipment, without own function group

• ENGINE WITH MOUNTING AND EQUIPMENT
  • ENGINE
    • General, common info about 211 – 218
  • LUBRICATING SYSTEM
    • General, common info about 221 – 224
  • FUEL SYSTEM
    • Fuel tank; fuel filling pump
  • COOLING SYSTEM
    • General, common info about 261 – 269
  • ENGINE CONTROL
    • Automatic speed control

• ELEC. SYSTEM; WARNING SYSTEM; INFORMATION SYSTEM; INSTRUMENTS
  • GENERAL
    • Comprehensive info, electrical system
  • BATTERY; ENERGY STORAGE SYSTEM; MOUNTING PARTS
    • General, common info about 311 – 313
    • Battery
  • ALTERNATOR; CHARGING; ELECTRIC MOTOR; ELECTRIC DRIVES
    • General, common info about 321 – 322
  • CABLE; FUSE; RELAY
    • General, common info about 371 – 379
    • Electrical distribution box; fuse box; junction box
  • INSTRUMENT; SENSOR; WARNING AND INFORMATION SYSTEM
    • General, common info about 383 – 387
    • Sender, monitoring system
    • Warning/information unit, display unit

• POWER TRANSMISSION
  • GEARBOX,
    • Gearbox
  • HYDROSTATIC DRIVE
    • General, common info about 441 – 443
  • MISCELLANEOUS
    • Swing system upper part

• BRAKE
  • TRACK BRAKE
    • General

• FRAME; SPRINGS; DAMPING; AXLE SUSPENSION; WHEEL/TRACK UNIT
  • FRAME
    • Counterweight
  • WHEELS; TRACKS; TYRE; HUB; DRUM
    • Crawler unit

• HYDRAULIC SYSTEM; DIGGING/ HANDLING/ GRADING EQUIPM.; MISC. EQUIP.
  • WORKING HYDRAULICS; SERVO HYDRAULICS
    • General, common info about 911 – 917
    • Tank; line; oil cooling; filter; breather; filling pump
    • Working hydraulics
      • The control-pressure valve for travelling forward (12:j) and rearward
        (12:k)
    • Pump, working hydraulics
    • Servo hydraulic system
  • UNIT, DIGGING
    • General, common info about 971 – 975
  • MISCELLANEOUS
    • Other equipments/attachments