wsm Kubota L4100, Workshop Manual

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BRAKES L4100, WSM
5-S8
(EU)
Brake Cam and Brake Cam Lever
1. Remove the brake cam mounting nut and remove the brake
cam (2) and brake cam lever (4).
(When reassembling)
• Apply grease to the O-ring (3) and take care not damage the
O-ring.
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[4] SERVICING
Brake Cam Lever Movement
1. Assemble the brake cam (1) and brake cam lever (2).
2. Move the brake cam lever by hand to check the movement.
3. If the movement is heavy, refine the brake cam lever or brake
cam with sandpaper.
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Cam Plate Flatness
1. Place the cam plate on the surface plate.
2. Use a feeler gauge of 0.3 mm (0.012 in.) thick for judgement of
the cam plate flatness. Measure the flatness diagonally at more
than four locations.
3. If the measurement is above the allowable limit, replace it.
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Height of Brake Cam Plate and Ball
1. Measure the dimensions of the brake cam plate with the ball
installed.
2. If the measurement is less than the allowable limit, replace the
cam plate and balls.
3. Inspect the ball holes of cam plate for uneven wear. If uneven
wear is found, replace it.
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Brake Disc Wear
1. Measure the brake disc thickness with vernier calipers.
2. If the measurement is less than the allowable limit, replace it.
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(1) Brake Case
(2) Brake Cam (3) O-ring
(4) Brake Cam Lever
(1) Brake Cam (2) Brake Cam Lever
Cam plate flatness Allowable limit
0.30 mm
0.012 in.
Height of brake cam
plate and ball
Factory specification
20.9 to 21.1 mm
0.823 to 0.831 in.
Allowable limit
20.5 mm
0.807 in.
Brake disc thickness
Factory specification
4.60 to 4.80 mm
0.182 to 0.188 in.
Allowable limit
4.20 mm
0.165 in.
KiSC issued 08, 2012 A