Komatsu Forklift trucks, LPG/petrol - AX/BX20 series, -14/-17

Clutch fluid capacity & service interval

Komatsu Forklift trucks, LPG/petrol - AX/BX20 series, -14/-17 use clutch fluid with a capacity of 0,1 liter. Service intervals include checking every 8 hours and changing every 6 months or 1200 hours. The data covers 4 configurations.

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

TypeSpecifications
FG15HC-17, Nissan K21
  • Use: Normal
  • Capacity 0,1 liter
  • Check 8 hours
  • Change 6 months/ 1200 hours
FG20C-14, Nissan K21
  • Use: Normal
  • Capacity 0,1 liter
  • Check 8 hours
  • Change 6 months/ 1200 hours
FG25C-14, Nissan K21
  • Use: Normal
  • Capacity 0,1 liter
  • Check 8 hours
  • Change 6 months/ 1200 hours
FG30C-14, Nissan K21
  • Use: Normal
  • Capacity 0,1 liter
  • Check 8 hours
  • Change 6 months/ 1200 hours

Additional Notes

  • All four configurations in the Komatsu AX/BX20 series covered here use a hydraulic clutch system, which relies on fluid pressure rather than a mechanical cable to actuate the clutch.
  • The clutch fluid capacity across all listed models is 0.1 liter, a small volume consistent with a compact hydraulic clutch reservoir rather than a large transmission or brake system.
  • A check interval of every 8 hours of operation reflects the frequency typical of daily pre-shift inspections on industrial forklift equipment, where fluid level and condition are monitored as part of routine safety checks.
  • The change interval is specified as 6 months or 1,200 hours under normal use conditions, with whichever threshold is reached first serving as the service trigger in time-based or usage-based maintenance schedules.
  • The FG15HC-17 carries the -17 series designation while the FG20C-14, FG25C-14, and FG30C-14 carry the -14 series designation, yet all share identical clutch fluid capacity and service intervals despite belonging to different series variants.
  • All four models are equipped with the Nissan K21 engine, and the clutch fluid specifications apply uniformly across the full capacity range represented, from the 1.5-tonne FG15HC-17 to the 3.0-tonne FG30C-14.

Other Systems