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258 Axles and Wheels
Axles
Differential Locks
The drive axle(s) may be equipped with
differential locks. The single drive axle will
only have a wheel differential lock. With
tandem drive axles, there could be both
wheel differential locks and an inter-axle
differential lock.
CAUTION
Never operate the vehicle with the dif-
ferentials locked any longer than is
necessary as this places a great strain on
the axles and may cause rapid tire wear.
The differential lock should be used on icy
or slippery surfaces. As soon as the
slippery surface has been passed, the differ-
ential lock should be disengaged.
Differential locks must not, under any cir-
cumstances, be engaged when in a
wheel-spin situation. Engage the locks
ahead of the slippery area. If already slip-
ping, stop the wheels, engage the locks and
then continue. If the differential locks are
engaged when the wheels are spinning, the
differential will be damaged and the rear
axle drive unit could possibly fail.