Komatsu Forklift trucks, diesel - Tusk DX20 series

Differential fluid capacity & service interval

Komatsu Forklift trucks, diesel - Tusk DX20 series differential fluid capacity ranges from 12,5 to 13 liters. Service intervals include checks at 3 months or 600 hours, and changes at 1, 6 months or 200, 1200 hours. The data covers 10 configurations.

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

TypeSpecifications
  • 1320PD-10, Komatsu SAA4D95LE-5-A (55001 ->)
  • Front
  • Use: Normal
  • Capacity 13 liter
  • Check 3 months/ 600 hours
  • Change 6 months/ 1200 hours
  • 1320PD-10, Komatsu SAA4D95LE-5-A (55001 ->)
  • Front
  • Use: Initial service
  • Capacity 13 liter
  • Change 1 months/ 200 hours
  • 1540PD-10, Komatsu SAA4D95LE-5-A (55001 ->)
  • Front
  • Use: Normal
  • Capacity 13 liter
  • Check 3 months/ 600 hours
  • Change 6 months/ 1200 hours
  • 1540PD-10, Komatsu SAA4D95LE-5-A (55001 ->)
  • Front
  • Use: Initial service
  • Capacity 13 liter
  • Change 1 months/ 200 hours
  • 1540PD-8, Komatsu S6D102E (46001 ->)
  • Front
  • Use: Normal
  • Capacity 12,5 liter
  • Check 3 months/ 600 hours
  • Change 6 months/ 1200 hours
  • 1540PD-8, Komatsu S6D102E (46001 ->)
  • Front
  • Use: Initial service
  • Capacity 12,5 liter
  • Change 1 months/ 200 hours
  • 1800PD-10, Komatsu SAA4D95LE-5-A (55001 ->)
  • Front
  • Use: Normal
  • Capacity 13 liter
  • Check 3 months/ 600 hours
  • Change 6 months/ 1200 hours
  • 1800PD-10, Komatsu SAA4D95LE-5-A (55001 ->)
  • Front
  • Use: Initial service
  • Capacity 13 liter
  • Change 1 months/ 200 hours
  • 1800PD-8, Komatsu SA6D102E (46001 ->)
  • Front
  • Use: Normal
  • Capacity 12,5 liter
  • Check 3 months/ 600 hours
  • Change 6 months/ 1200 hours
  • 1800PD-8, Komatsu SA6D102E (46001 ->)
  • Front
  • Use: Initial service
  • Capacity 12,5 liter
  • Change 1 months/ 200 hours

Additional Notes

  • The Komatsu Tusk DX20 series front differential fluid capacity splits along engine generation lines. Units fitted with the SAA4D95LE-5-A engine, covering the 1320PD-10, 1540PD-10, and 1800PD-10 variants from serial number 55001 onward, hold 13 liters. Units fitted with the S6D102E or SA6D102E engine, covering the 1540PD-8 and 1800PD-8 from serial number 46001 onward, hold 12.5 liters.
  • The 0.5-liter difference between the -10 and -8 series front differentials reflects a physical volume distinction between the two differential housings rather than a fill procedure variable. Both figures represent the full service fill capacity for the front differential assembly.
  • An initial service interval applies to all listed configurations. The front differential fluid is changed at 1 month or 200 hours, whichever comes first, during this break-in period. This early change is standard practice for gear-driven assemblies, as new components shed fine metallic particles into the lubricant during initial wear-in.
  • Under normal use conditions, the front differential fluid check interval is set at 3 months or 600 hours across all listed configurations. A check at this frequency typically involves verifying fluid level and inspecting for contamination or discoloration without necessarily draining the fluid.
  • The normal-use change interval for the front differential fluid is 6 months or 1200 hours across all configurations. The dual-trigger format, combining a calendar period with an operating hour threshold, means whichever limit is reached first governs when the change is due.
  • The 1200-hour change interval for the front differential is twice the 600-hour check interval, meaning at least one fluid level inspection occurs between each full drain-and-fill service under normal operating conditions.
  • The initial service change interval of 200 hours aligns with one-sixth of the normal 1200-hour change cycle, indicating a significantly accelerated early maintenance schedule before transitioning to the standard normal-use cadence.

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