Kubota WSM B2050 Workshop Manual page 292

B2050, B2350, B2650, B3150, WSM
2. OPERATION
The brake body incorporated in the rear axle case (1)
filled with transmission oil and is designed to brake when
the brake disc (8) splined with the differential gear shaft
(3) is pressed against the cam plate (7) by means of the
cam mechanism incorporating steel balls (2).
For greater braking force, three brake discs are
provided at the right and left sides respectively, and two
friction plates (6) fixed to the rear axle case are arranged
between the brake discs.
 During Braking
When the brake pedal is pressed, the linkage causes
the brake cam lever (4) and brake cam (5) to turn into the
direction of arrow shown in the above figure.
Therefore, the cam plate (7) also moves to the
direction of arrow. At this time, since the cam plate (7)
rides on the steel balls (2) set in the grooves of the rear
axle case to press the brake disc (8), the differential gear
shaft (3) is braked by the frictional force generated by the
cam plates (7) and brake discs (8).
(1) Rear Axle Case
(2) Steel Ball
(3) Brake Shaft
(Differential Gear Shaft)
(4) Brake Cam Lever
5-M3
BRAKES
(5) Brake Cam
(6) Friction Plate
(7) Cam Plate
(8) Brake Disc
9Y1210982BRM0004US0
KiSC issued 03, 2014 A