Saab 95 1967, Руководство по обслуживанию

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2, Remove the circlip taking great care not to
damage the surface finish of the primary piston
Lightly tap the mounting flange of the cylinder
body on the bench, and remove the nylon guide
bearing the secondary cup (24) and the plain
washer
3_ Using special circlip pliers with long, narrow jaws,
tool 78 41 992 remove the inner circlip again
taking great care not to damage the surface finish
of the primary piston
FITTING THE PISTON WASHER
10, Primary cup
11. Piston washer (dished)
12. Secondary piston
9. Remove the 4 bolts retaining the cover of the
brake fluid reservoir (5) and take off the cover to-
gether with the gasket.
10. Clean the parts in brake fluid or methylated spirit.
REMOVING
THE LOCK RING
Tool 78 41 992
INSPECTION
1. Check that the cylinder bore is not scored.
4. Removal of the circlip will allow the withdrawal of 2, Check that the by-pass holes are clean by probing with
both pistons together with the piston stop (21 ). a piece of thin steel wire.
5. Compress the intermediate spring (16) together 3. Check all parts, and renew any defective ones. Internal
with spring holder (18) and drive out the retaining rubber parts should be replaced by new ones.
pin using a suitable pin punch. This will sepa-
rate the two pistons (Q and 12), and allows the
withdrawl of the spring (16) and spring holder
6. Remove the primary cups (IO and 19) together
with the piston washers (11 and 20) from the pri-
mary and secondary pistons. Remove the secondary
cup (13) from the back of the secondary piston.
REASSEMBLY
Before reassembling the master cylinder, dip all parts in
brake fluid.
DO Mt attempt to move the cup (15) from the 59' 1. Using the fingers only, stretch the secondary cup
condary piston, as this part is permanently peened (13) over the large end of the secondary piston
in position. with the lip pointing towards the peened clip.
7. Unscrew the outlet adapters (31) and remove them Gently work round the cup with the fingers to en-
together with the gaskets. sure correct bedding.
8. Withdraw the non-return valves, comprising the Locate the piston washer on the secondary piste"
spring
valve body (33) and spring clip
Take care not to distort the spring clip (34) when
removing it from the valve body.
spigot. Using the fingers only, ease the primary cup
(10) over the nose of the spigot and into the groove,
with the lip of the cup pointing away from the head
of the piston.
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