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OPERATION
NO. ID 39 l-4
: Work on a pressure regulator
and accumulator
assembly
ID
19
TOOLS
REPLACEMENT
OF
A PRESSURE
REGULATOR.
Release
the
pressure
by
unscrewing
the
bleed
screw
of
the
pressure
regulator
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Remove
the
petrol
pump,
withdraw
it towards
the
front
and
disconnect
the
flexible
inlet
pi p e
. . . . . . . . . . . . . . . . . . . . .
Disconnect
the
suspension
feed
pipe
from
the
union
of the
connecting
pipe
to the
distribution
block
(spanner
2219-T
or
2221-T,
see
Pl.
61,
fig.
3)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8 mm
spanner
14 mm
box
spanner
Spanner
2219-T
or
2221-T
On
the
suspension
pump
slightly
unscrew
the
union
from
the
connecting
pipe
to
pump
and
pressure
regulator
(spanner
2220-T
or
14 mm
spanner,
see
Pl.
61,
fig.
3)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Remove
the
pressure
regulator
upper
fixing
screw
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Raise
the
car
and
support
the
front
of the
car
(jacking
bracket
2505-T,
see
Pl.
111)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Disconnect
the
control
valve
and
pump
connecting
pipe
from
the
pressure
regulator
(spanner
2220-T
or
14 mm
spanner).
Spanner
2220-T
or
14 mm
spanner
12 mm
spanner
Jacking
bracket
2505-T
Remove
the
retaining
collar
from
the
pressure
regulator
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Spanner
2220-T
or
14 mm
spanner
Remove
the
clamp
from
the
rubber
return
pipe
to
reservoir.
Disconnect
the
pipe
from
the
control
valve
and
close
the
aperture
of
the
pipe
with
a plug
(see
Pl.
89)
and
remove
the
pressure
control
valve
and
accumulator
assembly.
Disconnect
the
suspension
feed
pipe
from
the
pressure
regulator
(spanner
2221-T
or
2219-T)
. . . . . . . . . . . . . . . . . . . .
Assembly.
Spanner
2221-T
or
2219-T
Fit
the
retaining
clip
on
the
pressure
regulator
and
connect
the
suspension
feed
pipe
(spanner
2221-T
or
2219-T)
. . .
Spanner
2221-T
or
2219-T
Place
the
pressure
regulator
in
position,
connect
the
control
valve
and
pump
connecting
pipe
to
the
pressure
regulator
and
tighten
the
union
on the
suspension
pump
(spanner
2220-T
or
14 mm
spanner).
. . . . . . . . . . . . . . . . . . .
Spanner
2220-T
or
14 mm
spanner
Connect
the
suspension
feed
pipe
to
the
union
of
the
connecting
pipe
of the
distribution
block
(spanner
2221-T
or
2219-T)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Insert
and
tighten
the
upper
fixing
screw
of the
pressure
regulator
(spring
and
plain
washer
under
the
head).
Tighten
the
pressure
regulator
clip
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Spanner
2221-T
or
2219-T
12 mm
spanner
and
box
spanner
Connect
the
rubber
return
pipe
to
reservoir
to
the
pressure
regulator.
Tighten
the
clip
inserting
a rubber
ring
to
avoid
fracture
of
the
pipe.
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