Bleeding Front Control Circuit - BMW R1150RT - MAINTENANCE INTEGRAL ABS Maintenance Manual

Bleeding front control circuit

•
Seal the reservoir by installing the rubber dia-
phragm and the reservoir cap.
•
Turn the handlebars to full left lock.
•
Repeatedly pull front brake lever lightly to expel
air from brake master cylinder.
•
Switch off the brake bleeding device.
•
Set the handbrake lever to position 4.
d
Warning:
When performing maintenance and repair work on
BMW Integral ABS, never pump quickly or vigorous-
ly.
•
Remove reservoir cap with rubber diaphragm.
•
In the following sequence, bleed:
– front metering cylinder (1),
– front integral circuit (2),
– front control circuit (3) and
– front metering cylinder (1) for the second time
using ring spanner, BMW No. 34 2 532, in accord-
ance with instructions for bleeding.
Instructions for bleeding:
1. Slowly pull brake lever until brake-light switch
clicks (blow-by bore closed).
2. Open the bleed screw.
3. Slowly pull brake lever to full extent of its travel
and close the bleed screw.
4. Slowly release the brake lever.
5. Repeat steps 1 to 4 until the bake fluid is clear
and free of bubbles.
•
Fit the protective caps on the bleed screws.
•
Add brake fluid up to the "MAX" mark.
•
Wipe the rim of the reservoir, the rubber dia-
phragm and the cover to remove brake fluid, and
carefully re-assemble the components.
34.20
•
Recheck the brake-fluid level.
•
Place the motorcycle on its centre stand.
•
Turn the handlebars fully to the left.
1
3
Specified level
not below ......................................................... MIN
(top edge of the marking ring)
2
e
After all the work on the brake system has been
completed, run a bleed test using the
BMW MoDiTeC.
R28340110
Brake fluid ...................................................DOT 4
Attention:
R22000140