Lull Telehandlers

Transfer case fluid capacity & service interval

Lull Telehandlers require transfer case fluid with a capacity of 1,6 liters. Service intervals include changes at 100 hours and 1000 hours. The data covers 6 configurations.

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

TypeSpecifications
644E-42, Cummins 4BT3.9, S/N 0160037794 -> ( -2015)
  • Use: Normal
  • Capacity 1,6 liter
  • Change 1000 hours
644E-42, Cummins 4BT3.9, S/N 0160037794 -> ( -2015)
  • Use: Initial service
  • Capacity 1,6 liter
  • Change 100 hours
644E-42, Cummins B4.5T, S/N 0160037794 -> ( -2015)
  • Use: Normal
  • Capacity 1,6 liter
  • Change 1000 hours
644E-42, Cummins B4.5T, S/N 0160037794 -> ( -2015)
  • Use: Initial service
  • Capacity 1,6 liter
  • Change 100 hours
944E-42, S/N 0160037794 -> ( -2015)
  • Use: Normal
  • Capacity 1,6 liter
  • Change 1000 hours
944E-42, S/N 0160037794 -> ( -2015)
  • Use: Initial service
  • Capacity 1,6 liter
  • Change 100 hours

Additional Notes

  • The Lull Telehandlers transfer case fluid capacity is 1.6 liters across all listed configurations, covering the 644E-42 with Cummins 4BT3.9, the 644E-42 with Cummins B4.5T, and the 944E-42, all within the S/N 0160037794 and earlier serial number range up to 2015.
  • A 1.6-liter capacity is a relatively modest fill volume, consistent with a compact transfer case unit rather than a large-format drivetrain assembly, and reflects a service fill rather than a full overhaul or dry-fill quantity.
  • Under normal use conditions, the transfer case fluid change interval is set at 1000 hours for all three configurations, which is a standard heavy-equipment interval tied to operating hours rather than calendar time.
  • An initial service interval of 100 hours applies to all three configurations, representing the first fluid change after a unit enters service. At 100 hours, residual manufacturing debris and break-in wear particles are flushed from the transfer case before the standard 1000-hour cycle begins.
  • The initial service interval of 100 hours is ten times shorter than the normal 1000-hour interval, reflecting the elevated contamination risk during the early operational period of a new or rebuilt transfer case.
  • The 644E-42 is listed with two distinct engine options, the Cummins 4BT3.9 and the Cummins B4.5T, yet both share identical transfer case fluid capacity and interval specifications of 1.6 liters, 1000-hour normal change, and 100-hour initial service change.
  • The 944E-42 carries the same transfer case fluid specifications as both 644E-42 engine variants, with a 1.6-liter capacity, a 1000-hour normal change interval, and a 100-hour initial service interval.

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