Axle Switches

cen dm 02.04.001

Differential Lock Switch

The differential lock switch provides maximum traction for slippery conditions by forcing the wheels on each drive axle governed by the switch to rotate together. Engagement can be at any speed, provided the wheels are not slipping or spinning. See Fig..

  1. Interaxle Differential Lock Switch

  2. Fifth Wheel Slide Switch

  3. Rearmost Axle Differential Lock Switch

  4. Air Suspension Dump Control Switch

Fig. 1, Axle and Suspension Switches

Interaxle Lock Switch

The interaxle lock, standard on all dual-drive vehicles, is driver-actuated by means of a LOCK/UNLOCK control valve switch. See Fig.. A red indicator illuminates when the interaxle lock is engaged.

Notice: The interaxle lock should only be engaged when the vehicle is moving slowly at low throttle. Engagement at high speed or power can damage the axle(s).

Do not permit rear wheels to spin freely for more than ten seconds when traction is lost. Shift into LOCK to prevent damage to interaxle and main differentials.

Note:
Parent topic: Controls
Document Number: 0000117991
Manual Publication Date: 2024-05-13
Topic Publication Date: 2024-06-06