JCB ATV/Utility vehicles, Workmax/Groundhog

Additional Notes

• The JCB Groundhog 4x4 with Kohler KDW1003 Stage III/T3 engine carries 1 liter in both the front and rear differentials, with each unit holding an equal capacity rather than the asymmetric front-to-rear split seen in some utility vehicle configurations.
• Both differential positions on the Groundhog 4x4 are assigned a first-change-only interval of 100 hours, meaning the fluid is replaced once at that break-in threshold rather than on a recurring schedule.
• The Workmax 800D with Yanmar 3TNE68 engine holds 0.55 liter in the front differential and 0.29 liter in the rear, a notable capacity difference between the two axles on the same machine.
• Under normal use conditions, the Workmax 800D front differential fluid is changed at 2000 km or 125 hours, whichever comes first, reflecting a dual-trigger interval tied to both distance and operating time.
• The Workmax 800D rear differential shares the same normal-use change interval of 2000 km or 125 hours as the front, despite holding roughly half the fluid volume at 0.29 liter.
• An initial service interval applies to both differentials on the Workmax 800D, with the front changed at 1600 km or 100 hours and the rear at the same 1600 km or 100 hours, establishing an earlier first-change point before the standard recurring schedule takes effect.
• Comparing the two platforms, the Groundhog 4x4 front differential holds 1 liter while the Workmax 800D front differential holds 0.55 liter, a capacity difference of 0.45 liter between the two models at the same axle position.