Linde Forklift trucks, LPG (394 series)

Coolant capacity & service interval

Linde Forklift trucks, LPG (394 series) require coolant with a capacity range of 10,5 to 12,5 liters. Service intervals include checking every 10 hours and changing every 60 months or 12000 hours, or at 12000 hours. The data covers 6 configurations.

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

TypeSpecifications
H40 T, 394-02 / VW BMF (2015- )
  • Use: Normal
  • Capacity 10,5 liter
  • Capacity 12 liter (+ heater)
  • Check 10 hours
  • Change 12000 hours
H45 T, 394-02 / VW BMF (2015- )
  • Use: Normal
  • Capacity 10,5 liter
  • Capacity 12 liter (+ heater)
  • Check 10 hours
  • Change 12000 hours
H50/600 T, 394-02 / VW BMF (2015- )
  • Use: Normal
  • Capacity 10,5 liter
  • Capacity 12 liter (+ heater)
  • Check 10 hours
  • Change 12000 hours
H40 T, 394-01 / VW BMF (2004- )
  • Use: Normal
  • Capacity 10,5 liter
  • Capacity 12,5 liter (+ heater)
  • Check 10 hours
  • Change 60 months/ 12000 hours
H45 T, 394-01 / VW BMF (2004- )
  • Use: Normal
  • Capacity 10,5 liter
  • Capacity 12,5 liter (+ heater)
  • Check 10 hours
  • Change 60 months/ 12000 hours
H50/500 T, 394-01 / VW BMF (2004- )
  • Use: Normal
  • Capacity 10,5 liter
  • Capacity 12,5 liter (+ heater)
  • Check 10 hours
  • Change 60 months/ 12000 hours

Additional Notes

  • All six configurations in the Linde 394 series share the same base cooling system capacity of 10.5 liters, indicating a common engine cooling circuit across the H40 T, H45 T, and H50 T model variants powered by the VW BMF engine.
  • When an optional cabin heater is fitted, coolant capacity increases beyond the base 10.5-liter fill. The 394-01 variants specify 12.5 liters with a heater, while the 394-02 variants specify 12 liters with a heater, reflecting a 0.5-liter difference between the two series generations in heater circuit volume.
  • The 0.5-liter reduction in heater-equipped capacity between the 394-01 and 394-02 series suggests a minor revision to the heater circuit or plumbing layout, even though the base cooling system volume remained unchanged at 10.5 liters.
  • A coolant level check interval of every 10 operating hours applies to all 394-01 configurations. This short interval is consistent with routine pre-shift or daily inspection practices common in industrial forklift operation.
  • The 394-02 variants carry the same 10-hour check interval, confirming that frequent visual or level verification of the cooling system was retained across both series generations.
  • 394-01 variants specify a coolant change at either 60 months or 12,000 operating hours, whichever comes first. The dual-trigger format accounts for both calendar aging and operational wear of the coolant, recognizing that a machine with low annual hours could still degrade coolant over time.
  • 394-02 variants list only a 12,000-hour change interval, without a calendar-based month limit. Removing the 60-month trigger represents a specification change between the two series, likely reflecting a coolant formulation or system update that reduced time-based degradation concerns.
  • The H40 T and H45 T in 394-01 trim share identical cooling system specifications in every detail, including base capacity, heater capacity, check interval, and change interval, indicating no cooling system differentiation between those two load-capacity variants within the same series.