Komatsu Forklift trucks, diesel - FH series, FH-1

Coolant capacity & service interval

Komatsu Forklift trucks, diesel FH series, FH-1 require coolant with a capacity of 9 liters. Service intervals include checks every 8 hours and changes every 24 months or 4000 hours. The data covers 3 configurations.

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

TypeSpecifications
FH40-1, Komatsu SAA4D95LE-5-C T4i (138001 ->)
  • Use: Normal
  • Capacity 9 liter
  • Check 8 hours
  • Change 24 months/ 4000 hours
FH45-1, Komatsu SAA4D95LE-5-C T4i (138001 ->)
  • Use: Normal
  • Capacity 9 liter
  • Check 8 hours
  • Change 24 months/ 4000 hours
FH50-1, Komatsu SAA4D95LE-5-C T4i (138001 ->)
  • Use: Normal
  • Capacity 9 liter
  • Check 8 hours
  • Change 24 months/ 4000 hours

Additional Notes

  • The FH40-1, FH45-1, and FH50-1 variants equipped with the Komatsu SAA4D95LE-5-C T4i engine share an identical cooling system capacity of 9 liters, indicating a uniform cooling circuit volume across all three load-class configurations within the FH-1 series.
  • A coolant level check interval of every 8 hours applies to all three variants under normal use conditions, reflecting a daily inspection frequency typical of heavy-duty industrial equipment operating on standard shift schedules.
  • The coolant change interval is set at 24 months or 4,000 hours, whichever comes first, under normal use conditions across the FH40-1, FH45-1, and FH50-1. The dual-trigger structure means calendar time can become the limiting factor in lower-utilization applications before the hour threshold is reached.
  • All three variants reference serial numbers from 138001 onward, meaning the 9-liter capacity and associated service intervals apply specifically to units produced from that serial number range.

Other Systems