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Fig
.
5·55.
Remolfing the e lec. co ntact
WARNING VALVE
NORMALlZING THE PISTONS
l
.
Disconn
ect
th
e
electri
c
cabl
e a
nd screw out th
e
w
a
rnin
g
switch
(Fig.
5-55)
so that th
e
pi stons
ret
urn to no
rma
l position
.
2. Repai
r
an
d
vent th
e
faulty hydraul ic circuit.
3.
Screw in the warning switch and tighten it to a
torqu
e
of 1.4-2.0 kgm
(1O-
l4 Ib.ft.). Connect
th
e
electri
c
cable.
REPLACING THE WARNING VALVE
l.
Disconnect all connections. Remove the
attaching
nut and then the
valve.
2. Install the new
valve
in reverse order
to removal.
Fig.
5-56
shows the various connections.
3.
Vent the
brake system.
2
3
Fig. 5·56.
Warning valve fitled
l.
Primary c ircuif, front
w hee ls
2.
Mas
ter cy
linder
pr
im
ary
c
ircu
if
3.
Master cy
li
nder
secondary c
irc
uif
4.
Secondary c ircuit, front
whee ls
5.
Secondary
c ircuit,
rear
w hee
ls
6. Pr
imary
c
ircu it, rear
w hee ls
4
Fig. 5·57.
Bra ke va
lves fitted
l.
Adjusting screw
2.
Le
ft brake valve
(secondary circuit)
3
.
Screw (assembling.)
4. Brake
hose
to
left
rear wheel
5. Brake
hose
to right
rear wheel
BRAKE
VALVE
REMOVING
6.
Bracket
7.
Aftaching screw
8.
Right b rake valve
9.
From the ma ster cyl
i
nder
primary circuit
la.
From
the
master cyl
i nder
secondary ci rcu
it
Unscrew
and plug the brake pipe connection
(lO,
Fig.
5-57).
Slacken the brake
hose
(4)
a max. 1/4 turn at
the valve.
Remove
the
attaching screw
and unscrew
the valve
from
the brake hose, see
Fig.
5-58.
RECO
N
DITIONING
l.
Separate
the
spring
housing from
t
he hydra
uli
c
part by removing the fo ur screws
(16,
Fig.
5-41 ).
Shake
out the springs and conta
in
er. The adjusting
screw must not be remo ved.
Fig. 5·58.
Removing the brake valve
VO
LVO
10 1897
S
:
23
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