JCB Fastrac 155 Series

Differential fluid capacity & service interval

JCB Fastrac 155 Series differential fluid capacity ranges from 11,5 to 21 liters. Service intervals include checks at 250 hours and changes at 1000 hours or 12 months. The data covers 4 configurations.

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

TypeSpecifications
  • Fastrac 155, -> 636.000 (1991-1997)
  • Front
  • Use: Normal
  • Capacity 11,5 liter
  • Check 250 hours
  • Change 1000 hours/ 12 months
  • Fastrac 155, -> 636.000 (1991-1997)
  • Rear
  • Use: Normal
  • Capacity 21 liter
  • Check 250 hours
  • Change 1000 hours/ 12 months
  • Fastrac 155, 636.001-> (1991-1997)
  • Front
  • Use: Normal
  • Capacity 11,5 liter
  • Check 250 hours
  • Change 1000 hours/ 12 months
  • Fastrac 155, 636.001-> (1991-1997)
  • Rear
  • Use: Normal
  • Capacity 21 liter
  • Check 250 hours
  • Change 1000 hours/ 12 months

Additional Notes

  • The JCB Fastrac 155 Series carries a front differential fluid capacity of 11.5 liters across both serial number ranges covered in the 1991-1997 production span.
  • The rear differential holds 21 liters, making it nearly double the front differential capacity, which reflects the greater size and load-bearing role of the rear axle assembly in a high-speed agricultural tractor of this class.
  • Both the front and rear differential fluid intervals follow the same schedule under normal use conditions: a fluid level check at every 250 hours of operation, followed by a full fluid change at 1,000 hours or 12 months, whichever comes first.
  • The 12-month calendar limit on the change interval means that even low-utilization machines reaching the time threshold before the hour threshold are still subject to a fluid change, independent of actual operating hours accumulated.
  • Specifications are divided between two serial number ranges: units up to and including serial number 636.000, and units from serial number 636.001 onward. Despite this split, the fluid capacities and service intervals are identical across both ranges for both differentials.

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