8
Checking the front brake fluid level
Check the brake fluid level by looking through sight A. The lev-
el should never fall below the mark in the sight.
Restoring the front brake fluid level
To restore the brake fluid level, unscrew the two screws 1, lift
cap 2 and pour in fresh fluid (IP DOT 4) until the level is 5 mm
below the upper rim of the reservoir.
IMPORTANT: We recommend using DOT 4 brake fluid. Should
this fluid be unavailable, use DOT 5.1 instead. Do not on any ac-
count use DOT 5 brake fluid, a purple liquid with a base of sili-
cone requiring special seals and tubes.
WARNING: Brake fluid is highly corrosive. Take care not to drip
it onto the paintwork.
Bleeding the front brake
To bleed air from the front brake circuit, follow these steps:
– Remove rubber cap B from valve C.
– Open the brake fluid reservoir cap.
– Insert one end of a small tube into valve C and place the oth-
er end in a container.
– Unscrew valve C (while pulling the lever) and repeatedly pull
the brake lever until the oil comes out in an uninterrupted flow
with no air bubbles. During this operation it is important that
the brake lever should never be released completely. Keep
pouring brake fluid into the brake pump reservoir to compen-
sate for the fluid that is flowing out.
– Tighten the valve and remove the tube.
– Replace the cap.
– Fit the reservoir cap on the brake pump.
Workshop manual RR 4T - 400 - 450 - 525
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C
B
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