wsm M7060 Workshop Manual page 386

M6060, M7060, WSM
[2] LIMITED SLIP DIFFERENTIAL (LSD)
In addition to conventional components, this differential gear system has friction disks (4) on one side of a side
gear (LSD) (3), steel plates (7) on the differential gear case cover (5), belleville washer (cupped spring washer) (6),
and an adjustment shim (LSD) (8).
The steel plates (7) and the friction disks (4) are coupled and pressed against each other with the belleville washer
(cupped spring washer) (6), which assembles the side gear (LSD) (3) and the differential case (1) into one.
Therefore, this differential gear system is always differential lock condition under normal conditions.
When a tractor is driving straight ahead, the differential gear is in differential lock condition and the right and left
wheels rotate at the same speed, allowing stable running in a straight line.
When the tractor takes a turn, the right and left wheels are forced to rotate in different speeds, and the difference
in rotation makes the right and left side gears rotate in different speeds.
At this point, if a torque higher than a specified load level is applied the belleville washer (cupped spring washer)
(6), the spring operates and the steel plate is released from the friction disk.
As a result, the right and left side gears rotate differently just as usual differential gear, allowing smooth cornering.
A load specified on the spring is adjusted by changing thickness of the adjustment shim (LSD) (8).
5-M2
FRONT AXLE
(1) Differential Case
(2) Side Gear
(3) Side Gear (LSD)
(4) Friction Disk
(5) Case Cover
(6) Belleville Washer (Cupped
Spring Washer)
(7) Steel Plate
(8) Adjustment Shim (LSD)
(9) Adjustment Shim (Side Gear)
(10) Pinion Gear
9Y1210828FAM0003US0
KiSC issued 08, 2013 A