BRAKES
29
SERVICING OF BRAKE BOOSTER
NOTE:
Other than non-return valve kit, internal parts of
brake booster are not serviceable in case of a
major complaint/fault; replace the brake booster
as an assembly.
The output rod is retained internally and cannot
be extracted. If the rod or the domed screw on the
rod end is damaged the Supervac Unit must be
replaced completely.
No attempt should be made to disturb the domed
screw. This is correctly set at the factory and
should never be disturbed.
(Exploded view of Brake booster)
7.8.13PARKING BRAKE CABLE ADJUSTMENT
Before checking parking brake cable slackness
adjustment, confirm the following conditions.
Bleeding should be completed. (i.e. there should
not be air trapped in the brake system) Confirm
pedal travel by depressing the brake pedal for few
times. Check the lining condition of the rear brake
it should not worn out beyond limit
After confirming all the above points, start
adjusting the parking brake lever stroke by either
loosening or tightening the self-locking slackness
adjustment nut after adjustment check for
dragging of rear brake drum
INSPECTION OF PARKING BRAKE:
Pull the parking brake lever at the grip center by
15-20 kg force, with this force the travel should
not exceed 6th notch position. Check both the
wheel are locked at this condition and release the
lever (i.e. take it to home position, Zeroth Notch)
and check for free rolling of the wheels.
For counting the notches easily, listen to the click
sound from the ratchet while pulling the parking
brake lever without pressing the button. one click
sound pertaining to one notch movement.
