Filling/Bleeding Clutch Line - BMW R 1100 S Repair Manual

Filling/bleeding clutch line

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Caution:
Do not allow brake fluid to come into contact with
painted parts of the motorcycle, because brake fluid
attacks paint.
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Note:
The description applies to a brake system filling and
bleeding device with vacuum extraction of brake flu-
id at the bleed line.
If other devices are used, comply with their manu-
facturers' instructions.
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Place the motorcycle on stand,
BMW No. 00 1 560, and turn the handlebars fully
to the right.
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Remove reservoir cover with rubber diaphragm.
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Caution:
With the clutch lining in new condition the surface of
the fluid (arrow) must be up to the lower edge of the
ring mark; it must not be below normal.
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Note:
As the clutch lining wears, the fluid level in the res-
ervoir rises.
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Top up the brake fluid.
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2
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While bleeding the system, do not allow the brake
fluid level to drop below the bottom edge of the ring
mark, as otherwise air will be drawn into the clutch
system. Bleed the system again if this happens.
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The motorcycle is not permitted on the road without
the grubscrew in place and secure in the filler adapt-
er.
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S000051
Grubscrew in filler adapter ........................... 10 Nm
Consumables
Brake fluid.....................................................DOT 4
1
S000251
Pull back protective hose (1).
Wrap a cloth around the filler adapter.
Remove socket-head grubscrew (2) from the fill-
er adapter.
Connect the brake bleeding device to bleed
screw (3).
Fully tighten the bleed screw in the filler adapter
(valve in filler adapter closed).
Open the bleed screw by half a turn (valve open).
Draw off brake fluid until it emerges clear and
free from air bubbles.
Caution:
Remove the bleed screw.
Disconnect the brake bleeding device from the
bleed screw.
Install socket-head grub screw (2) in the filler
adapter and tighten.
Caution:
Correct the fluid level.
Reinstall the reservoir lid with rubber diaphragm
in position.
Tighten the reservoir cover carefully and without
using force.
Tightening torque:
21.7