JCB Fastrac 155 Series

Manual transmission fluid capacity & service interval

JCB Fastrac 155 Series manual transmission fluid capacity ranges from 10 to 38 liters. Service intervals include a check every 10 hours and a change every 1000 hours or 12 months. The data covers 2 configurations.

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

TypeSpecifications
Fastrac 155, -> 636.000 (1991-1997)
  • Use: Normal
  • Capacity 10 liter
  • Check 10 hours
  • Change 1000 hours/ 12 months
  • Code: 36/12
  • Fastrac 155, 636.001-> (1991-1997)
  • Range and PTO gearbox
  • Use: Normal
  • Capacity 38 liter
  • Check 10 hours
  • Change 1000 hours/ 12 months

Additional Notes

  • The JCB Fastrac 155 with serial numbers up to 636.000 carries a manual transmission fluid capacity of 10 liters, a figure consistent with a single-unit gearbox fill rather than a combined drivetrain system.
  • From serial number 636.001 onward, the Fastrac 155 specifies a substantially larger capacity of 38 liters, which reflects a combined fill covering the manual transmission, range gearbox, and PTO gearbox as a shared fluid circuit.
  • The near-fourfold increase in capacity between the two serial number ranges indicates a significant mechanical revision to the drivetrain architecture introduced at the 636.001 serial break.
  • Both serial number variants share an identical fluid check interval of 10 hours, a very short interval typical of heavy agricultural equipment during initial break-in or routine operational monitoring.
  • The change interval for both configurations is set at 1000 hours or 12 months under normal use conditions, whichever comes first, meaning time elapsed can trigger a service requirement even when the hour threshold has not been reached.

Other Systems