Axle Switches
Note: See General Information for detailed information about axle switch functions.
Differential Lock Switch
The differential lock provides maximum traction for slippery conditions by forcing the wheels on each drive axle governed by the switch to rotate together.
Notice: The differential 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).
See Fig. for the differential lock switch on a vehicle with a single drive axle.
For a vehicle with tandem axles, there are several differential lock switch options available:
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one switch to control the differential lock on only one of the drive axles (this switch will show only one dot on one drive axle, varying slightly from the switch shown in Fig. ).
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one switch to control the differential locks on both drive axles (see Fig. ).
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two switches, each of which controls the differential lock on one drive axle.
Fig. 1, Differential Lock on Single Drive Axle
Fig. 2, Differential Lock on Both Axles
When the differential lock switch is pressed, the LED in the switch blinks until the differential lock is engaged. When the differential lock is fully engaged, the LED illuminates steadily.
Interaxle Lock Switch
The interaxle lock switch (see Fig. ) allows the driver to lock the drive axles together, causing the drive axle shafts to rotate together. Use this feature only under adverse road conditions where greater traction is needed.
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).
When the interaxle lock switch is pressed, the LED in the switch blinks until the interaxle lock is engaged. When the interaxle lock is fully engaged, the LED illuminates steadily.
