BMW R1150RT - MAINTENANCE INTEGRAL ABS Service Manual Page 68

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34.5
34 11 521 Disassembling and assem-
bling front brake caliper
e Attention:
Do not separate the brake caliper halves!
Integral ABS Drain front wheel circuit (
a 34.16).
Remove the brake caliper.
Remove the brake pads.
Close the bleed screw.
Secure two opposing brake pistons with
spacer, BMW No. 34 1 520.
Insert a piece of cloth between the two brake pis-
tons not secured by the resetting tool.
e Attention:
Do not insert your fingers between the pistons; risk
of injury.
Carefully press out brake pistons (1), using a
compressed air gun at the brake line connection.
Remove the two sealing rings from each brake
cylinder bore.
Inspect the brake caliper piston for hairline
cracks, score-marks and other damage.
Coat new sealing rings (2, 3) with brake fluid and
install.
Coat brake caliper pistons (1) with brake fluid
and insert.
e Attention:
Keep the brake pistons parallel with their bores
when installing.
Remove and install the other two brake pistons
in the same way.
Using piston resetting tool, BMWNo.341531,
press the pistons fully back.
Install brake caliper.
Integral ABS Fill and bleed front wheel circuit
(
a 34.23).
X Tightening torque:
Bleed screw to brake caliper.......................... 7 Nm
Grub screw in front brake caliper ................... 7 Nm
Colour code:
Brake pads/brake calipers ..............................white
S340220
1
2
3
34 1 531
34 1 532
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