Terex Trash compactors

Differential fluid capacity & service interval

Terex trash compactors utilize differential fluid with capacities ranging from 4,7 to 60 liters. Service intervals include checking at 50 hours and changing at 1000 hours. The data covers 4 configurations.

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

TypeSpecifications
  • TC400, HF-551 -> (2006- )
  • Front
  • Use: Normal
  • Capacity 42 liter
  • Check 50 hours
  • Change 1000 hours
  • TC400, HF-551 -> (2006- )
  • Rear
  • Use: Normal
  • Capacity 60 liter
  • Capacity 4,7 liter (LS-additive)
  • Check 50 hours
  • Change 1000 hours
  • 3-75E, HF523 -> (2003-2006)
  • Front
  • Use: Normal
  • Capacity 42 liter
  • Capacity 4,7 liter (LS-additive)
  • Check 50 hours
  • Change 1000 hours
  • 3-75E, HF523 -> (2003-2006)
  • Rear
  • Use: Normal
  • Capacity 60 liter
  • Capacity 4,7 liter (LS-additive)
  • Check 50 hours
  • Change 1000 hours

Additional Notes

  • The front differential on the Terex 3-75E (HF523) carries a fluid capacity of 42 liters, which represents a substantial fill volume consistent with heavy-duty axle assemblies found in large compaction equipment.
  • The rear differential on the 3-75E (HF523) holds 60 liters, a notably larger capacity than the front unit, reflecting the greater mechanical load typically carried by the rear axle in trash compactor applications.
  • Both the front and rear differentials on the 3-75E (HF523) specify an additional 4.7-liter limited-slip (LS) additive capacity, indicating the differentials are equipped with limited-slip mechanisms requiring a friction-modifier supplement alongside the base fluid fill.
  • The TC400 (HF-551) front differential shares the same 42-liter capacity as the 3-75E front unit, while the rear differential on the TC400 also matches at 60 liters with the same 4.7-liter LS-additive requirement.
  • The TC400 front differential does not carry an LS-additive specification, in contrast to the rear unit on the same model, which retains the 4.7-liter additive requirement seen on the 3-75E.
  • Across all four configurations, the fluid check interval is set at 50 hours of operation under normal use conditions, a relatively short inspection cycle that reflects the demanding operating environment of refuse compaction machinery.
  • The change interval for all listed differentials is 1000 hours under normal use conditions, meaning a full drain and refill is required after every 1000 hours of accumulated operation regardless of front or rear axle position.
  • The 3-75E (HF523) specifications apply to the 2003-2006 model years, while the TC400 (HF-551) specifications begin with the 2006 starting year, meaning both configurations share a common reference point at 2006.

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