Dynamometer Testing

WARNING: DO NOT attempt to drive individual wheels with vehicle supported on floor jacks or stands.

FOUR WHEEL DYNAMOMETERS
Provided that front and rear dynamometer rollers are rotating at identical speeds and that normal workshop safety standards are applied, there is no speed restriction during testing except any that may apply to the tires.

TWO WHEEL DYNAMOMETERS

IMPORTANT: Use a four wheel dynamometer for brake testing if possible.

^ If brake testing on a single axle rig is necessary it must be carried out with propeller shaft to rear axle removed, AND neutral selected in BOTH main gearbox and transfer gearbox. When checking brakes, run engine at idle speed to maintain servo vacuum.
^ If checking engine performance, the transfer box must be in high range and propeller shaft to stationary axle must be removed.