Cub Cadet 7530 Operator's Manual page 56

DIFFERENTIAL DIFFERENTIAL
LOCK PEDAL LOCK PEDAL LOCK PEDAL
GEAR DRIVE
RIGHT SIDE of the transmission
Your tractor has a differential lock that will make both rear wheels turn at
the same speed. The differential lock prevents loss of power when
one wheel does not have traction but the other wheel does have traction.
It also provides a straight in line steering aid when opening up the field
and to control implement overlap.
TO ENGAGE THE DIFFERENTIAL LOCK:
Depress and hold the differential lock pedal down.
IMPORTANT: Do not engage the differential lock while one rear wheel is
rotating and the other rear wheel is stopped. Always stop the wheel that is
rotating and then engage the differential lock.
IMPORTANT: When you engage or disengage the differential lock, the front
wheels must be in the straight forward position. Before turning the tractor,
disengage the differential lock.
TO DISENGAGE THE DIFFERENTIAL LOCK:
The differential lock will disengage when the differential lock pedal is
released. If the differential lock does not disengage easily, push down on
either brake pedal momentarily.
Do not drive on roads, or at high speed anywhere, with the
differential lock engaged. Difficult steering will occur, and can result
in an accident. In field operation, use the differential lock for
traction improvement, but release for turning at row ends.
DIFFERENTIAL LOCK
48
OPERATING INSTRUCTION
DIFFERENTIAL DIFFERENTIAL
LOCK PEDAL LOCK PEDAL LOCK PEDAL
HYDROSTATIC DRIVE
LEFT SIDE of the transmission