Volvo 164, 1970 Service Manual page 209

Fig. 5-22 . Removin g th e pisto ns
l . Wooden dis c
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The sealing rings and rubber dust covers should be
replaced whenever reconditioning takes place . If any
of the cylinders are scored or scratched, or damaged
in any way, the complete cylinder housing should be
replaced. Inspect the other parts and rep lace any
that are damaged or worn .
Check a lso the brake disc, see unde r "Brake Disc ".
ASSEMBLlNG
l.
Coat the working surfaces of the pistons and
cylinders with brake fluid.
2. Fit new sealing rings in the cylinders, see Fig .
5-23.
3. Fit the plungers with the large end diameter
facing inwards. Make sure that the plungers are
fitted in straight and are not scratched.
Fig. 5-23. Fitting the sea ling ring
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4. Fit the rubber covers on the p lunger and housing.
Fit the lock rings, compare Fig. 5-28.
5. Fit the b rake pads. Place one of t he retaini ng
pins in position and fit th e damping sp rings a nd
then the othe r retaining pin. Secure th e pins with
the hairpin-shaped retaining clips. Check that the
pads are movable.
6. Fit the venting nipples and also the brake lines.
FITTING
l.
Place the ca li per in position . Check that the con-
tact surfaces of the retainer are clean and not
damaged as it is of vital importance that the
caliper take s up the correct position in relation
to the brake disc. Fit the attaching bolts after
the y have been coated with a couple of drops of
Lock-tite, type AV. Check that the brake disc
rotates easily in the brake pads.
2. Fit the hoses and their connection as weil as the
guide clip as shown in Fig. 5-19. It is important
that the hoses are fitted in the correct way, that
is, without being tensioned and with the linkage
arms unioaded. Remove the plug for the vent-
ing hole in the brake fluid conta iner cover.
3. Fit on the wheel after the co ntact surfaces have
been cleaned of dirt, a nd then tighten the nuts
sufficiently so that the wheel cannot be displaced
on the hub. Lower the vehicle and tighten the
wheel nuts. Tighten every other nut a little at a
time, until all are finally tightened to a torque of
10-14
kgm
(70-100
Ib.ft.). Fit th e hub cap.
4. Vent th e fitted brake caliper, see Group 52.
Fig. 5-24. Front brake caliper assembled
5: 13