Case 580SR Service Manual page 76

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10 SECTION 21 - TRANSMISSION
IMPORTANT: operating at a "stall" for more than 20
seconds can cause the transmission to overheat and
can possibly damage the transmission. If the trans-
mission overheats, the indicator needle (1) moves to
the red zone. Shift both the powershuttle lever and
the gearshift lever to neutral. Idle the engine at 1000
rev/min. until the transmission oil is cooled sufficient-
ly for the indicator needle to drop into the green zone.
Once done, operations may resume.
DIFFERENTIAL LOCK PEDAL (MECHANICAL)
In conditions inducing wheel slip, hold down the dif-
ferential lock pedal (1) with your heel until the differ-
ential lock engages. The lock will automatically
disengage when traction at the rear wheels equaliz-
es. 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.
S WARNING
Never use the differential lock at speeds above 8 km/
h or when turning the machine.
When engaged the lock will prevent the machine
turning and personal injury could result.