Fenwick Forklift trucks, diesel (356 series)

Differential fluid capacity & service interval

Fenwick Forklift trucks, diesel (356 series) require 75 liters of differential fluid. Service intervals include checking at 500 hours and changing at 2000 hours. The data covers 5 configurations.

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

TypeSpecifications
  • H420, 356-01 Cummins QSM11 (2001- )
  • Front
  • Use: Normal
  • Capacity 75 liter
  • Check 500 hours
  • Change 2000 hours
  • H460, 356-01 Cummins QSM11 (2001- )
  • Front
  • Use: Normal
  • Capacity 75 liter
  • Check 500 hours
  • Change 2000 hours
  • H460 GPCH/2, 356-01 Cummins QSM11 (2001- )
  • Front
  • Use: Normal
  • Capacity 75 liter
  • Check 500 hours
  • Change 2000 hours
  • H460 GPCH/3, 356-01 Cummins QSM11 (2001- )
  • Front
  • Use: Normal
  • Capacity 75 liter
  • Check 500 hours
  • Change 2000 hours
  • H480, 356-01 Cummins QSM11 (2001- )
  • Front
  • Use: Normal
  • Capacity 75 liter
  • Check 500 hours
  • Change 2000 hours

Additional Notes

  • All five configurations in the Fenwick Forklift trucks, diesel (356 series) — the H420, H460, H460 GPCH/2, H460 GPCH/3, and H480 — share an identical front differential fluid capacity of 75 liters under normal use conditions.
  • A 75-liter front differential capacity is a notably large fill volume, consistent with the heavy-duty axle assemblies found in high-capacity industrial forklifts rather than lighter commercial or passenger vehicles.
  • The check interval for front differential fluid across all listed configurations is set at 500 hours of operation under normal use, which in forklift service typically corresponds to periodic inspections without a full drain and refill.
  • The change interval is specified at 2000 hours under normal use, meaning a full differential fluid drain and replacement is required four times less frequently than the check interval across all five configurations.
  • Every listed configuration is powered by the Cummins QSM11 engine within the 356-01 series, and all carry the same front differential service specifications, indicating no variation in differential fluid requirements across the H420, H460, H460 GPCH/2, H460 GPCH/3, and H480 variants.
  • The H460 appears in three distinct configurations — the base H460, the H460 GPCH/2, and the H460 GPCH/3 — yet all three share the same 75-liter capacity and identical check and change intervals, suggesting the GPCH variants do not alter front differential service requirements.

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