Saab 95 1967, Руководство по обслуживанию

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BLEEDING
Bleeding IS not a routine service measure and is necessary
only when part of the brake system has been disassembled
and when the brake fluid has been drained off. Sure signs
that air has entered the system are excessive pedal travel,
springy pedal action or absence of braking effect until the
brake pedal has been firmly depressed several times.
A bleed nipple is provided for each wheel. Bleed nipples
for the disc brakes are located on the wheel cylinder.
LOCATION
OF BLEEDING NIPPLES. REAR WHEEL BRAKE
520—2
LOCATION OF BLEEDING NIPPLE, FRONT WHEEL BRAKE
The best result is obtained with the aid of bleeding equip
ment. The makers instructions should be followed. Bleed-
ing can also be done according to the following descrip
tion.
1. Check that the reservoir is completely full of brake
fluid and that the air vents in the reservoir cover are
not choked.
2. Bleed either one wheel at a time or two wheels at the
same time. One circuit should be bled completely be-
fore bleeding of the other circuit is started. Up to and
incl. model 1970 (make Lockheed) the left front wheel
and the right rear wheel must be bled first.
Fit suitable hoses to the bleed nipples on both wheels.
Dip the hose end in a glass vessel containing clean
brake fluid.
Back off both nipples 1/2—1 turn.
Have an assistant pump the brake pedal and watch un-
til escaping brake fluid is free of air bubbles. Keep the
hose ends below the fluid level in the glass vessel the
whole time.
7. Close the bleed nipples, keeping the pedal depressed
meanwhile.
8. Check that the brake fluid in the reservoir does not
run out while the system is being bled.
9. Top up the reservoir with fresh brake fluid efter bleed-
ing the two circuits.
PP
pm
Fobr 1977