Kubota RTV1140CPX, Workshop Manual

Page: 246 / 379

BRAKES
RTV1140CPX, WSM
4-S11
Brake Piston, Brake Disc and Friction Plate
IMPORTANT
• It is recommended to replace the brake seal with a new one
every four years.
• Therefore, do not remove the piston unnecessarily from the
knuckle case.
• If the piston should be removed, replace the seal ring with
a new one.
1. Remove the oil seal (1).
2. Remove the snap ring collar (2) and remove the external snap
ring (3).
3. Tap out the front axle (5) with plastic hummer.
4. Remove the knuckle case (4) mounting screw.
5. Separate the knuckle case and knuckle case cover (6).
6. Remove the brake piston (7) by compressed air.
(When reassembling)
• Be sure install the external snap ring.
• Replace the oil seal (1) with new one.
• Take care not to damage the O-ring.
• Replace the brake seal 1 (8), 2 (9), and brake seal 3 (11), 4 (10).
• Insert the bearing and oil seal first to the knuckle cover (6), and
install the knuckle case cover to front axle (5).
CAUTION
• The brake seal 1 (8), 2 (9) are used for brake fluid only.
• The brake seal 3 (11), 4 (10) are used for transmission fluid
only.
• Degrease both the piston (7) and the knuckle case (4)
before installing each brake seal.
• Before inserting the piston (7), apply a thin coat of the
special grease (KLUBER LUBRICATION: SEALUB-L-101 or
equivalent) to the brake seal surface. The special grease is
a dual use type that can be applied to the oil seals and the
O-rings for both of the brake fluid and the transmission
fluid.
• When servicing the brake, pay due attention to any oil
adhered to your hands.
• Exert full care when handling the mineral oil (transmission
fluid) and the brake fluid.
NOTE
• Align the each alignment mark (12) of piston and knuckle
case.
• Assemble the bearing and oil seal of rear axle into the
knuckle case cover side, and then assemble the rear axle.
(To be continued)
Tightening torque
Knuckle case cover
mounting screw
48 to 55 N·m
4.9 to 5.7 kgf·m
36 to 41 lbf·ft
(1) Oil Seal
(2) Snap Ring Roller
(3) External Snap Ring
(4) Knuckle Case
(5) Front Axle
(6) Knuckle Case Cover (7) Piston
(8) Brake Seal 1
(9) Brake Seal 2
(10) Brake Seal 4
(11) Brake Seal 3
(12) Alignment Mark
KiSC issued 05, 2014 A