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ID
19
OPERATION
No.
ID
45 3-3
: Work on the brake hydraulic
system
9
10
11
Fit
the
ring
seal
(23)
of
the
cap
(21)
and
the
spring
(22)
and
tighten
the
high
pressure
supplementary
feed
control
cap
(21)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fit
the
ring
seal
(20)
and
connect
the
high
pressure
supplementary
feed
control
to
the
master
cylinder.
Tighten
the
screws
(springwashers
under
the
heads)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fit
the
spring
(14)
together
with
its
steel
cup
(18),
the
rubber
cup
(17),
the
piston
(13)
with
its
rubber
cup
(16),
the
washer
(15)
and
the
circlip
(12).
12
OVERHAULING
A MASTER
CYLINDER
( cars
produced
since
February
1958).
Dismantling.
(see
Pl.
108,
fig.
1).
Remove
the
circlip
(1)
from
the
piston
(2),
and
hold
the
latter
to
prevent
the
parts
from
scattering
under
the
pressure
of the
spring
(3).
13
14
Remove
the
washer
(4),
the
piston
(2),
the
cup
(5),
the
spring
(3)
and
the
valve
unit
(6).
Remove
the
feed
union,
the
unions
(7)
and
(8)
and
the
rubber
seal
(9)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
15
Remove
the
cup
(10)
from
the
piston
(2).
Remove
the
valve
(11)
from
its
seat.
Cleaning.
16
17
Clean
all
the
parts
in
alcohol.
Failing
alcohol,
use
perfectly
clean
brake
fluid.
Do
not
use
any
other
substance.
The
master
cylinder
must
not
show
any
traces
of
rust
or
wear,
otherwise
a new
one
must
be
fitted.
Make
sure
that
the
passages
"a",
"b"
and
"c"
are
not
blocked.
18
Immerse
all
the
parts
in
perfectly
clean
brake
fluid.
Assembly
(see
Pl.
108,
fig.
1).
19
20
Place
the
seal
(9)
in
position.
Fit
the
valve
(11)
on its
seat
and
fit
this
assembly
(6)
in
position.
Fit
the
spring
(3),
the
cup
(5),
and
the
piston
(2)
together
with
its
cup
(10).
Fit
the
washer
(4)
and
the
retaining
ring
(1).
Tighten
the
feed
union
and
insert
the
copper
washer.
Fit
the
unions
(7)
and
(8)
and
insert
a copper
washer
on
either
side
of
the
union
(8)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Op.
ID
453-3
297
TOOLS
26 mm
box
spanner
12 mm
box
spanner
19 and
21
mm
box
spanners
19 and
21 mm
box
spanners
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