WORKING ON THE ABS/PBS SYSTEM
Page : 34
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2) Operate the right brake lever
evenly and smoothly
several times
very slowly
with a maximum movement
of 2 cm from its rest position until no more bubbles can be seen coming up through the master cylinder
reservoir.
3) Remove the bleed screw cap from the control
unit integral circuit
- Connect the control unit bleed screw (1) to a
recipient containing brake fluid using a transparent
pipe. The recipient must be kept higher than the
control unit to facilitate checking that the air
bubbles are being expelled.
- Open the bleed screw half a turn
- Operate the left brake lever
evenly and smoothly
whilst topping up the fluid in the master cylinder
- Stop when there are no more bubbles coming from the control unit
- Close the bleed screw
- Re-fit the bleed screw cap
4) Remove the rear caliper bleed screw cap
- Connect the bleed screw to a recipient containing
brake fluid using a transparent pipe. The recipient
must be kept higher than the brake caliper to
facilitate checking that the air bubbles are being
expelled.
- Open the caliper bleed screw half a turn
- Operate the brake lever
evenly and smoothly
whilst topping up the fluid in the master cylinder
- Stop when there are no more bubbles coming from the caliper
- Close the bleed screw
- Disconnect the pipe connecting it to the master cylinder
- Check the lever is firm
Note:
If the lever does not feel sufficiently firm, repeat the operation as from paragraph 2
- Re-fit the bleed screw cap
- Check the brake fluid level in the master cylinder, top up if necessary and fit the cover
