Case 580SR Service Manual page 497

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MECHANICAL DIFFERENTIAL LOCKING
OPERATION (Powershuttle)
S WARNING
Never use the differential lock at speeds above 8
km/h or when turning the machine. When engaged,
the differential lock prevents the machine from turn-
ing: this could cause accidents.
In conditions inducing wheel slip, hold down the dif-
ferential lock pedal (1) with your heel until the lock is
felt to engage. The lock will automatically disengage
when traction at the rear wheels equalizes. If a rear
wheel spins at speed, reduce the engine speed to
idle before engaging the differential lock to minimize
shock loads on the rear axle.
When pedal (1) is pressed, a system of levers acti-
vates outer lever (2) that on its turn acts on bracket
(3) locking the differential. By releasing pedal (1) the
lever is also released and the differential is un-
locked.
SECTION 27 - REAR AXLE
2
3
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