BMW R 1100 S, Repair Manual

Page: 42 / 311

00.34
Checking clutch operating fluid
level
(Inspections II and III)
•
Place the motorcycle on its centre stand.
•
Handlebar centred.
•
Check that the front wheel is on the ground.
Fluid level:
not below .................... MIN (halfway up sight glass)
•
Turn the handlebars to the left.
•
Check that the front wheel is on the ground.
Required level with a new clutch liner: ................
...........................................Half way up sight glass
L
Note:
As the clutch lining wears, the fluid level in the res-
ervoir rises.
•
Correct the fluid level if necessary. Mark in reser-
voir: same as brake circuit.
e
Caution:
Do not allow brake fluid to come into contact with
painted parts of the motorcycle as brake fluid de-
stroys paint.
Brake fluid grade .......................................... DOT 4
Changing the clutch fluid
(Inspections IV)
at the latest every 2 years
e
Caution:
Do not allow brake fluid to come into contact with
painted parts of the motorcycle as brake fluid de-
stroys paint.
L
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.
•
Motorcycle standing upright.
•
Release clamps securing handlebar.
•
Turn the front wheel and the handlebar to a posi-
tion in which the clutch fluid reservoir is horizon-
tal.
•
Tighten the handlebar and secure the front wheel
in this position.
•
Remove reservoir cover with rubber diaphragm.
•
Top up the brake fluid.
•
Pull back protective hose (1).
•
Wrap a cloth around the filler adapter.
•
Remove socket-head grub screw (2) from the fill-
er adapter.
•
Connect the brake bleeding device to bleed
screw (3).
•
Screw the bleed screw all the way into 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.
e
Caution:
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.
•
Remove the bleed screw.
R21000110
MIN
R21000310
3
2
1