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Fig. 4-45.
Blowing the orifice
nozzle
dean
VOLVO
103115
4.
Be·
f ore fitting the parts of the
reli,
e f valve,
it
may
be
suitable
to blow
~he
orifice nozzle dean wirth
compressed nir, see
Fig
.
4-45.
5.
Fit the new O-rings on the end
washer,
cylinder
and plug. Lub6cate the parts with o
il.
Then
install
them in
rthe fo
ll
owing order: End
washer,
cy
lind er,
sma
ll
piston,
low-,press ure
spring,
largl
e
piston and
plug.
T,ighten the
plug to a torque of 2.2
kgm
(16 IbJt.).
6. Fit
the
pr,e-filte1
r and base
plat'
e
with
a
new gasket.
Make
sur,
e
.
~ hat
the
magnet is in position on the
bas'
e
plate.
Fill
with oil.
CLEANING THE ORIFICE NOZZLE
The
orifice nozzle is
accessible
af ter the
cylinder
of
the relief valve
has been
removed
according to
above. Blow
the orifice nozzle clean with
compressed
air, see Fig. 4-45.
CHECKING AND REPLACING THE CHECK VALVE
l. Remove t,he base
plate and
pre-filter.
Collect
the
oil in
an
oil
container.
Warning. If the vehide has
bel
e n
recently driven, the oil may be hot and
cause damage
if
con~act
is made with your
skin.
2.
Remove the plug with
tool SYO 2836. Take
out
the
non-return valve
spring,
non-return ball
and
non
-ret
um body.
3. Clean all the
parts in white
spi rit and
blow
them
dry
with
compl1essed air. Check the
parts for
damage
'Ond
wear.
Repl,ace
faulty
parts.
4. Fit a
new
O-,ring
·
o n
to the pl,ug
and
then
re-fit
the
non
-ret
um
body, ball,
spring ,and
plug. Tighten
the
plug
to
a torque of 2.2
kgm
(16
IbJt.).
4:
18
Fig. 4-46.
Fine filter
1.
Fi lter
2.
Sea
l
3.
Plug
VO LVO
10]
11
6
5.
Re-fit
the
pre
~filter
and
base pl'at'e together with
a
new
gasket. Do not
forget
the mag
net
on
the
bottom
plate. Fi
ll
with
oi
l.
CLEANING THE FILTER
l.
Remove
the base
pl'
a te and
ifhe
pre-fi1
Iter.
Collect
the
oil in
an
oil
container.
W'arning.
If
the
vehicle
hCls been recently driven,
~he
oil may be hot and
cau~e
damage if contact is made with your skin
.
2. Remove the plug and take out the
se'
a l and fine
filte,r, see Fig. 4-46.
3.
Clean all the parts ,in white spi rit. Then blow them
dry with compressed air.
4.
~it
the fine filter, a new seal and the plug. T,ighten
the
plug to a torque ,of 2.2 kgm (16 IbJt.).
5. Re-fi:t
~he
pre-filter
and the base plate with a new
gasket. Make sure that the magnet is in position
on the base plate.
Fill
with oil.
REMOVING THE OVERDRIVE
To fooilitate removal,
the
vehicle shou.ld
Hrst
be driven
with the ovelrdrive engaged and then with it disen-
gaged
with
the
clutch pedal
depressed.
The last-men-
tioned is imporl>ant in order to avaid torsionai tensions
in the shaft between
the
pl'anet caHielr and uni-·direc-
tional c1utch. Any stresses will disappear even if oil
with pressure of 20-25 kg/cm
2
(284-335 p.s.i.) is
connected to
the
output at the ope,rating valve. The
overdrive is engaged and disengaged with
th,
i s pres-
sure.
R
,
e moval is as foll,ows:
l. Carry out
opell1ations
l-S under "Removing" in
Group 53 a.
2.
Disconnect
the
cahles to the
soleno,
i d.
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