Komatsu Motor graders, scrapers, GD/WS

Power steering fluid capacity & service interval

Komatsu motor graders, scrapers, GD/WS use power steering fluid with a capacity of 7,6 liters. The data covers 6 configurations.

The configuration chart below lists fill volumes and service intervals for each engine and trim variant.

TypeSpecifications
GD530A-2E
  • Use: Normal
  • Capacity 7,6 liter
GD530AW-2E
  • Use: Normal
  • Capacity 7,6 liter
GD650A-2E
  • Use: Normal
  • Capacity 7,6 liter
GD650AW-2E
  • Use: Normal
  • Capacity 7,6 liter
GD670A-2E
  • Use: Normal
  • Capacity 7,6 liter
GD670AW-2E
  • Use: Normal
  • Capacity 7,6 liter

Additional Notes

  • The steering gearbox capacity of 7.6 liters applies uniformly across the GD530A-2E, GD530AW-2E, GD650A-2E, GD650AW-2E, GD670A-2E, and GD670AW-2E motor grader models.
  • The 7.6-liter figure represents the service fill capacity of the steering gearbox, meaning the volume of power steering fluid the housing holds under normal operating conditions rather than a dry or overhaul fill quantity.
  • All six models carry a normal use condition designation, meaning the 7.6-liter capacity applies to standard operating environments without adjustment for severe-duty cycles.
  • The AW-suffix variants, such as the GD530AW-2E, GD650AW-2E, and GD670AW-2E, share identical steering gearbox capacities with their non-AW counterparts, indicating the all-wheel-drive configuration does not alter the power steering fluid volume for the gearbox.
  • Across the three model size classes represented, the GD530, GD650, and GD670 series, the steering gearbox capacity remains constant at 7.6 liters, showing no variation tied to the differing machine sizes within this range.

Other Systems