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188
OPERATION
No.
ID
39 1- 1
: Replacement
nf suspension pump
ID
19
TOOLS
REMOVAL
(see
Pl.
20)
1
Release
the
pressure
by
unscrewing
the
bleed
screw
of
the
pressure
regulator.
Retighten
the
bleed
screw
. . . . . . . . . .
8 mm
spanner
2
3
Slightly
unscrew
the
union
on
the
control
valve
from
the
connecting
pipe
between
pump
and
control
valve
and
unscrew
fully
the
union
on
the
high
pressure
pump
(spanner
2220-T,
see
Pl.61,
fig.
3)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Remove
the
pump
fixing
screws.
Withdraw
the
pump
complete
with
the
distance
piece
(1)
and
the
paper
gaskets
(2)
and
disconnect
from
the
pump,
the
pipe
connecting
the
control
valve
to
the
pump
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4
Remove
the
inlet
pipe
clamps
and
disconnect
the
pipe
from
the
pump
and
from
the
reservoir.
I
5
Remove
the
distance
piece
(1)
complete
with
dowels
(3)
f rom
the
pump
and
remove
the
paper
gaskets
(2)
between
pump
and
distance
piece.
ASSEMBLY
(see
Pl.
20)
I
6
On
either
side
of the
distance
piece
(1)
place
a paper
gasket
(2),
first
dipping
the
latter
into
boiled
linseed
oil,
and
fit
this
assembly
on the
high
pressure
pump.
7
8
Fit
the
pump
and
these
accessories
on
the
bearing
face
of the
crankcase.
Insert
the
pump
fixing
screws
without
tightening
them
(spring
washers
under
the
heads).
Connect
$0 the
pump
the
connecting
pipe
between
control
valve
and
pump
(spanner
2220-T,
or
14 mm.
spanner,
see
Pl&l,
fig.3).
Tighten
the
pump
fixing
screws
and
tighten
the
unions
of
the
pipe
connecting
the
pump
to the
control
valve
. . . . . . . . . . .
.I
Connect
the
inlet
pipe
to
the
pump.
Fit
the
clamp
and
tighten.
At
the
point
where
the
clamp
fits
round
the
pipe
insert
a rubber
ring
in
order
to
prevent
fracture
of
the
pipe.
9
Fill
the
pump
with
fluid
through
the
inlet
pipe.
Connect
the
inlet
pipe
to
the
outlet
pipe.
Fit
a rubber
ring
on
the
pipe
and
tighten
the
clamp.
10
Unscrew
the
bleed
screw
of the
control
valve.
Start
the
engine
and
allow
it to
run
for
several
minutes.
Tighten
the
bleed
screw.
Place
the
system
under
pressure.
Check
the
unions
for
leakage.
Make
sure
that
the
accumulator
is
under
pressure
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Spanner
2220-T
12 mm
box
spanner
and
12 mm
ring
spanner
12 mm
box
spanner
and
12 mm
ring
spanner
Spanner
2220-T
14 mm
spanner
8 mm
spanner
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