Operation of Interaxle Lock
P4 DM Ch20; CasGen5 DM Ch18
Notice: The interaxle lock should not be engaged on a vehicle with obviously spinning wheels. Engagement at high speed or power can damage the axle(s).
Note: If the interaxle lock is engaged when the engine is turned off, the interaxle lock will disengage.
Do not wait until traction is lost and the tires are spinning before engaging the interaxle lock.
- With the engine running, press the upper half of the interaxle
lock switch to engage the interaxle lock. If the vehicle is moving,
briefly let up on the accelerator until the interaxle lock engages.If the vehicle is equipped with Detroit axles, the illumination of the switch indicates the lock is engaged. Depending on the vehicle configuration, a buzzer may also sound.
- Proceed over poor road conditions with caution.
- After leaving poor road conditions, press the lower half
of the interaxle lock switch to disengage the interaxle lock. If the
vehicle is moving, briefly let up on the accelerator to allow the
interaxle lock to disengage.If the vehicle is equipped with Detroit axles, the deactivation of the indicator light on the switch indicates disengagement.
- Resume driving at normal speed.
Notice: Do not operate the vehicle continuously with the interaxle locked during extended good road conditions. To do so could result in damage to the axle gearing and excessive driveline and tire wear.
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