TM 5-3805-291-23-1
THEORY OF OPERATION - CONTINUED
0003 00
POWERTRAIN - CONTINUED
427-C1742
(3)
When wheels have equal traction, limited slip differential sends an equal amount of power to both wheels
(like a standard differential). One wheel begins to turn faster than another if there is a loss of traction.
When this occurs, internal forces present between shaft and actuator housings will react on a 45 degree
angle. Internal forces push actuator housings against clutch packs. Clutch pack torque limits loss of trac-
tion to wheel that is turning faster.
(4)
Limited loss of traction is due to internal differential friction. This effect is produced by two clutch packs
arranged symmetrically in differential housing. Limited slip differential is identical on left and right side of
two pinion shafts. Limited slip differential contains two thrust washers, two clutch packs, two actuator
housings, two bevel gears, and four pinion gears.
(5)
Inside side gear splines are connected to sun gears for final drives. Outside side gear splines are meshed
with inner friction discs in clutch packs. Side gears send power through sun gears to final drives.
(6)
Housing is fastened to bevel gear. Housing has inner grooves which hold outer discs in clutch pack. Clutch
pack also has inner discs between outer discs. Inner discs are splined to side gears. Actuator housings fit in
same grooves and are held with discs from moving radially. Side gears fit into actuator housings with pin-
ion shafts. Pinion shafts lie in 45 degree notches in actuator housings. Both pinion gears are installed on
pinion shafts.
0003 00-58
