Fenwick Forklift trucks, diesel (356 series)

Automatic transmission fluid capacity & service interval

Fenwick Forklift trucks, diesel (356 series) utilize automatic transmission fluid with a capacity of 50 liters. Service intervals include checks at 10 hours and changes at 50 hours or 1000 hours. The data covers 10 configurations.

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

TypeSpecifications
  • H420, 356-01 Cummins QSM11 (2001- )
  • Powershift
  • Use: Normal
  • Capacity 50 liter
  • Check 10 hours
  • Change 1000 hours
  • Code: 4/4
  • H420, 356-01 Cummins QSM11 (2001- )
  • Powershift
  • Use: Initial service
  • Capacity 50 liter
  • Change 50 hours
  • Code: 4/4
  • H460, 356-01 Cummins QSM11 (2001- )
  • Powershift
  • Use: Normal
  • Capacity 50 liter
  • Check 10 hours
  • Change 1000 hours
  • Code: 4/4
  • H460, 356-01 Cummins QSM11 (2001- )
  • Powershift
  • Use: Initial service
  • Capacity 50 liter
  • Change 50 hours
  • Code: 4/4
  • H460 GPCH/2, 356-01 Cummins QSM11 (2001- )
  • Powershift
  • Use: Normal
  • Capacity 50 liter
  • Check 10 hours
  • Change 1000 hours
  • Code: 4/4
  • H460 GPCH/2, 356-01 Cummins QSM11 (2001- )
  • Powershift
  • Use: Initial service
  • Capacity 50 liter
  • Change 50 hours
  • Code: 4/4
  • H460 GPCH/3, 356-01 Cummins QSM11 (2001- )
  • Powershift
  • Use: Normal
  • Capacity 50 liter
  • Check 10 hours
  • Change 1000 hours
  • Code: 4/4
  • H460 GPCH/3, 356-01 Cummins QSM11 (2001- )
  • Powershift
  • Use: Initial service
  • Capacity 50 liter
  • Change 50 hours
  • Code: 4/4
  • H480, 356-01 Cummins QSM11 (2001- )
  • Powershift
  • Use: Normal
  • Capacity 50 liter
  • Check 10 hours
  • Change 1000 hours
  • Code: 4/4
  • H480, 356-01 Cummins QSM11 (2001- )
  • Powershift
  • Use: Initial service
  • Capacity 50 liter
  • Change 50 hours
  • Code: 4/4

Additional Notes

  • The Fenwick Forklift trucks, diesel (356 series) powershift transmission holds 50 liters of automatic transmission fluid across all listed variants, including the H420, H460, H460 GPCH/2, H460 GPCH/3, and H480 models paired with the Cummins QSM11 engine. A 50-liter capacity is notably large and reflects the heavy-duty industrial nature of the powershift transmission used in high-capacity forklift applications.
  • Under normal use conditions, the fluid level in the powershift transmission is specified for a check interval of every 10 hours of operation. A 10-hour check interval is very short by general automotive standards and is consistent with the intensive duty cycles typical of industrial forklift equipment.
  • The normal-use fluid change interval for the powershift transmission across all listed 356 series variants is set at 1000 hours. In industrial machinery, hours of operation serve as the primary service measure rather than distance, and 1000 hours represents a standard heavy-equipment drain interval.
  • An initial service condition is specified separately from normal use for all listed variants, with a fluid change interval of 50 hours. An initial service interval of 50 hours is a break-in drain intended to remove metal particles and contaminants generated during the early wear-in period of a new or rebuilt transmission.
  • The initial service specification does not include a fluid check interval, whereas the normal use specification includes a check at 10 hours alongside the 1000-hour change interval. The absence of a check interval under initial service reflects that the 50-hour change itself serves as the primary early-life maintenance event.
  • All ten specification rows across the five variants share identical capacity and interval values, indicating that the H420, H460, H460 GPCH/2, H460 GPCH/3, and H480 configurations within the 356-01 series use the same powershift transmission service parameters when equipped with the Cummins QSM11 engine.

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