Replacing The Check Valve; Replacing The Servo Cylinder - Volvo 164, 1970 Service Manual

Fig. S·71. The check valve fitted
REPLACING THE CHECK VALVE
VOLVO
103208
Remove the check valve, see Fig. 5-77, from the
vacuum hose. Ensure that the new check valve func-
tions properly. Fit the valve so that the arrows on
the valve housing point away from the servo cylinder.
The vacuum hose connection should face downwards.
5: 32
REPLACI NG TH E S,ERVO CYLI NDE: R
REM O VING
l.
Remove the master cy linder, see page
5: 20.
Disconnect the vacuum hose from the servo cy-
linder.
2. Disconnect the link arm (16, Fig. 5-69) from the
brake pedal. Remove the bracket with clutch pe-
dal stop from the cowl.
3. Remove the 4 nuts securing the servo cy linder to
the cowl.
4. Pull the servo cy linder forwards and disconnect
the fork from the link arm.
FITTING
l.
Check that the rubber cover (35, Fig.
S-lO)
is
pressed down properly at the protective washer
for the c1eaner. Secure the fork to the link arm.
Push in the servo cylinder so that the attaching
bolts come into position .
2. Place the resilient washers under the attaching
nuts. Secure the cylinder.
3. Fit the bracket for the c1utch pedal. Secure the
lin k arm to the brake pedal.
4. Fit the vacuum hose. The connection for the
vacuum hose shou ld face downwards.
5. Vent the entire brake system.