JCB Articulated dump trucks

Differential fluid capacity & service interval

JCB articulated dump trucks utilize differential fluid with a capacity range of 1.5 to 33 liters. Service intervals include changing fluid every 1000 hours or 12 months, and checking fluid every 6 months or 500 hours. The data covers 11 configurations.

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

TypeSpecifications
  • 714, Cummins QSB6.7 (1304500->) (2011- )
  • Front
  • Use: Normal
  • Capacity 33 liter
  • Check 6 months/ 500 hours
  • Change 12 months/ 1000 hours
  • Code: Graziano PR12
  • 714, Cummins QSB6.7 (1304500->) (2011- )
  • Rear
  • Use: Normal
  • Capacity 33 liter
  • Check 6 months/ 500 hours
  • Change 12 months/ 1000 hours
  • Code: Graziano PR12
  • 718, Cummins QSB6.7 (1304600->) (2011- )
  • Front
  • Use: Normal
  • Capacity 29 liter
  • Check 6 months/ 500 hours
  • Change 12 months/ 1000 hours
  • Code: Graziano PR15
  • 718, Cummins QSB6.7 (1304600->) (2011- )
  • Rear
  • Use: Normal
  • Capacity 29 liter
  • Check 6 months/ 500 hours
  • Change 12 months/ 1000 hours
  • Code: Graziano PR15
  • 722, Cummins QSB6.7 (2010- )
  • Front
  • Use: Normal
  • Capacity 17 liter
  • Check 6 months/ 500 hours
  • Change 12 months/ 1000 hours
  • Code: ZF AP9
  • 722, Cummins QSB6.7 (2010- )
  • Intermediate
  • Use: Normal
  • Capacity 17 liter (Axle)
  • Capacity 1,5 liter (Differential)
  • Check 6 months/ 500 hours
  • Change 12 months/ 1000 hours
  • Code: ZF AP9
  • 722, Cummins QSB6.7 (2010- )
  • Rear
  • Use: Normal
  • Capacity 17 liter
  • Check 6 months/ 500 hours
  • Change 12 months/ 1000 hours
  • Code: ZF AP9
  • 718, Cummins 6BTAA5.9 (2001-2010)
  • Hub reductions
  • Use: Normal
  • Capacity 7 liter
  • 718, Cummins 6BTAA5.9 (2001-2010)
  • Rear
  • Use: Normal
  • Capacity 22 liter
  • Code: Graziano PR15
  • 714, Cummins 6BTAA5.9 (2000-2010)
  • Front
  • Use: Normal
  • Capacity 21 liter
  • Change 1000 hours
  • Code: Graziano PR12
  • 714, Cummins 6BTAA5.9 (2000-2010)
  • Rear
  • Use: Normal
  • Capacity 21 liter
  • Change 1000 hours
  • Code: Graziano PR12

Additional Notes

  • The JCB 714 with the Cummins 6BTAA5.9 engine carries 21 liters in both the front and rear differentials, with a change interval of 1000 hours under normal use conditions. The identical capacity across both axles reflects a symmetrical drivetrain layout in that configuration.
  • When the 714 transitioned to the Cummins QSB6.7 engine from serial number 1304500 onward starting in 2011, the front and rear differential capacities increased to 33 liters each. That 12-liter rise per differential compared to the 6BTAA5.9 variant points to a physically larger axle assembly accompanying the engine change.
  • The QSB6.7-equipped 714 introduced a fluid level check interval of 6 months or 500 hours alongside the 1000-hour change interval. The earlier 6BTAA5.9 specifications list only a change interval, with no separate check interval recorded.
  • The 718 with the Cummins 6BTAA5.9 engine, covering 2001-2010, lists hub reduction differentials at 7 liters each. Hub reductions are planetary gear sets housed at each wheel end, and their separate fluid capacity reflects a mechanically distinct sump from the main differential housing.
  • The 718 Cummins 6BTAA5.9 rear differential holds 22 liters, while the hub reductions hold 7 liters each. No front differential capacity is listed for that configuration, which differs from the axle layout recorded for the QSB6.7 variant of the same model.
  • The 718 fitted with the Cummins QSB6.7 from serial number 1304600 onward carries 29 liters in both the front and rear differentials. The 6-month or 500-hour check interval and the 12-month or 1000-hour change interval apply equally to both axles under normal use conditions.
  • The JCB 722 with the Cummins QSB6.7 engine, starting in 2010, specifies 17 liters for the front, intermediate axle, and rear differentials. The uniform 17-liter figure across all three axle positions indicates a consistent axle housing design throughout the three-axle drivetrain.
  • The 722 intermediate axle carries a dual-capacity specification: 17 liters for the axle itself and 1.5 liters for the differential unit within it. The separation of these two values indicates that the intermediate axle contains a distinct differential sump that is serviced independently from the main axle housing fluid.
  • Across all 722 differential positions, the service schedule under normal use conditions calls for a fluid level check at 6 months or 500 hours and a full fluid change at 12 months or 1000 hours, whichever threshold is reached first.

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