Cub Cadet 8454 User Manual
Page 162
CHAPTER 4 8454
4-58
D569-W02 May-2003
Differential Lock
When resistances to the right and left tires are different
due to ground conditions or type of work, the wheel
with less resistance slips and prevents the tractor from
moving ahead.
To compensate for this, the differential lock restricts
the differential function and causes both rear axles to
rotate as a unit.
When the differential lock pedal is stepped on, it causes
the differential lock cam shaft (1), differential lock shift
fork (2) and differential lock shifter (3) are moved for-
ward the spiral bevel gear (8).
The pins on the differential lock shifter (3) go into the
holes in the differential side gear (5) through the holes
in the differential case (4) to cause the differential case,
differential lock shifter and differential side gear to ro-
tate as a unit.
Therefore the differential pinions (6) (9), can not rotate
on their axles, and the rotation of the spiral bevel pin-
ion is transmitted to the both rear axles evenly. It means
the tractor going straight ahead.
When the drive wheels regain equal traction, the lock
will disengage automatically by the force of differential
lock pedal return spring, while released differential lock
pedal
(1) Differential Lock Cam Shaft
(2) Differential Lock Shift Fork
(3) Differential Lock Shifter
(4) Differential Case
(5) Differential Side Gear
(6) Differential Pinion
(7) Differential Side Gear
(8) Spiral Bevel Gear
(9) Differential Pinion
569W494A