Pierce Enforcer, Operator'S Manual

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© 2018 Pierce Manufacturing Inc. All Rights Reserved.
Driving the Vehicle / 5-49
OPERATION
5-27.5b TAK-4 Differential Lock Operation
Before entering an area where poor traction conditions are likely to occur, engage driveline differential locking
system prior to wheel slippage as follows:
1. Engage switch on dash panel. Let up on the accelerator to provide an interruption in drive torque to expedite
shift. The differential lock warning light will illuminate to indicate the differential lock system has been engaged.
NOTE: Always unlock the differentials after passing adverse conditions. This permits the driveline to
compensate for differences in turning distances for each wheel and allows maximum performance
and speed.
2. After regaining normal traction, let up on the accelerator; then disengage switch.
5-27.6 Two-Speed Rear Axle
The two-speed rear axle switch permits selection of either the high or low axle ratio.
DO NOT operate the vehicle on dry pavement with the differential lock engaged.
Attempting to operate the vehicle on dry pavement with the differential lock engaged WILL result in
damage to the steering system and/or the differential(s).
Under no conditions should the differential locking system be engaged when any wheel is spinning.
This could only result in severe mechanical damage to the drive train.
It may be necessary to slowly back up in order to disengage the system if excessive driveline windup
has occurred.
Downshift Move selector switch to low. Release and depress the accelerator quickly.
Upshift Move the selector switch to the high range with the accelerator depressed. Release the
accelerator and pause until the shift is complete.