228
Driving
7.12 TRACTION AID
Increased traction
On vehicles with a trailing axle or leading rear axle, it is possible to increase the traction
on the driven axle by temporarily decreasing the load on the trailing axle or leading rear
axle. In this way, the load is transferred from the non-driven to the driven axle. This is
useful if increased traction is required, for example to pull out of slippery or muddy
terrain.
Engaging and disengaging traction aid
Engaging conditions
The traction aid can be engaged up to a specified vehicle speed and it is automatically
disengaged after a specified time or as soon as a specified vehicle speed is reached.
After some time, the traction aid can be re-engaged.
The time required for engaging the increased traction depends on statutory
requirements in the country concerned.
NOTE: Depending on the model, the raised trailing axle can automatically
be lowered if the pre-set maximum load of the driven axle is exceeded.
Lifting of the trailing axle will subsequently be impossible.
Traction aid is engaged via a switch on the control panel.
Disengaging traction aid
When traction aid is engaged, it can be disengaged by pressing the switch for more
than two seconds. The raised axle lowers immediately.
7.13 DIFFERENTIAL LOCK
General
Differential locking is possible and can be activated from the cabin:
– Between two driven rear axles: inter-axle lock.
– Between the left-hand wheel and right-hand wheel of a rear axle: cross-axle lock.
Directions for use
CAUTION:
– Never engage the differential lock while there is wheel slip. Always
wait until the wheel has stopped spinning before engaging the
differential lock.
Engaging the differential lock while there is wheel slip on one of the
axles can lead to damage to the differential and/or differential lock.
DW63246305.book Page 228 Friday, March 22, 2019 4:54 PM
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