Ammann Rubber tyred rollers, AP

Differential fluid capacity & service interval

Ammann Rubber tyred rollers, AP use differential fluid with a capacity of 6 liters. Service intervals include checks every 6 months or 500 hours and changes every 12 months or 1000 hours or every 250 hours. The data covers 4 configurations.

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

TypeSpecifications
  • AP 240, Cummins 4BT4.5-C99 T2 (2006-2012)
  • Rear
  • Use: Normal
  • Capacity 6 liter
  • Check 6 months/ 500 hours
  • Change 12 months/ 1000 hours
  • AP 240, Cummins 4BT4.5-C99 T2 (2006-2012)
  • Rear
  • Use: Initial service
  • Capacity 6 liter
  • Change 250 hours
  • AP 240, Cummins 4BT4.5-C99 T3 (2006-2012)
  • Rear
  • Use: Normal
  • Capacity 6 liter
  • Check 6 months/ 500 hours
  • Change 12 months/ 1000 hours
  • AP 240, Cummins 4BT4.5-C99 T3 (2006-2012)
  • Rear
  • Use: Initial service
  • Capacity 6 liter
  • Change 250 hours

Additional Notes

  • The rear differential on the Ammann AP 240 holds 6 liters of fluid, a figure that applies equally across both the Tier 2 and Tier 3 variants of the Cummins 4BT4.5-C99 engine for the 2006-2012 production span.
  • Under normal use conditions, the rear differential fluid check interval is set at 6 months or 500 hours, whichever comes first, giving operators a dual-trigger schedule based on either calendar time or accumulated machine hours.
  • The normal-use change interval extends to 12 months or 1000 hours, meaning the fluid is expected to remain serviceable for roughly twice the duration between checks before a full drain and refill is required.
  • An initial service change is specified at 250 hours for both the T2 and T3 engine configurations, reflecting the common practice of removing break-in contaminants from a newly commissioned differential before the standard long-term interval takes effect.
  • The initial service interval of 250 hours carries no calendar-based alternative, unlike the normal-use schedule, which pairs months with hours as equivalent triggers.
  • The 6-liter rear differential capacity is consistent across the T2 and T3 engine tiers, indicating no variation in the differential assembly itself between those two emissions-rated configurations of the AP 240.

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