Sunbeam ALPINE I SERIES: APLINE II SERIES, Руководство по ремонту, Страница: 281 / 413

4th re-Issue
Page
n
WSM,124
Section K (Brakes)
RAPIE.R
15. Two types of seal and retainer assemblies have
been fitted In conjunction with this caliper.
The earlier type of seal has a rectangular
section, whilst the later type Is "U" sectioned.
To fit the earlier type, the seal must first be
positioned In the recessed portion of the
cylinder bore. The retainer Is then placed
squarely over the bore of the cylinder, and
pressed home flush with the edge of the caliper
bore using special tool number RG 331
complete with adaptor. The retainer should
be fitted so that Its hollow side Is facing
towards the disc.
With the later type, the seal Is positioned
within the retainer, and the retainer pressed
home usklg special tool number RG 331 minus
the adaptor. When fitted, the flange of this
retainer should be facing towards the disc.
See Fig. 14.
16. Tighten the bleed screw.
17. Refit the brake pads as previously described.
18. Refit the caliper Into position and secure It to Its
adaptor plate with two bolts and a new tab
washer.
19. Bleed the brakes as described under "Bleeding
the System".
The method of replacing the mounting half
sealing ring Is the same as above; however, It
will be necessary to remove the flexible hose
before the special tool can be fitted to press
the dust seal retainer back Into position.
Caliper bridge bolts
No
attempt
should
be
made
to remove the
brldfe
bolts Joining the two halves
of the
caliper.
There Is
no point In doing
so
and, In addition, the torque
figure
to
which
the
bolts are tightened Is critical.
If. In an
emergency, the
caliper has
been split,
a
new fluid channel seal, lock plates and bolts must
be
fitted. The caliper must be thoroughly cleaned
before
reassembly, and
the
bolts tightened
to
a
torque reading of
35 to 40
lbs. ft.
(4·8 to 5·5 kg.m)
A�er reassembly, the
unit should
be
checked for
fluid tightness under maximum pedal
pressures.
Fig. 15
A SECTION THROUGH THE BRAKE CALIPER
SHOWING THE CORRECT LOCATION OF THE
ANTI-SQUEAK STEPS, MACHINED ON THE
OUTER ENOS OF THE PISTONS, WHICH MUST
BE POSITIONED TOWARDS THE BOTTOM OF
THE APERTURE IN THE REAR OF THE BRAKE
CALIPER.
DISCS
Run-out
Excessive run-out of the discs wlll cause knocking
back of the pistons which may create excessive
pedal travel when the brakes are applied.
Before checking the run-out, hub end-float should
first be eliminated by tightening the retaining nut,
re-adjusting It at the end of the test. (See Section F,
"Front Hubs-to adjust"). After tightening the
retaining nut, check that the hub can still be rotated.
A dial test Indicator should then be clamped either
to the stub axle carrier or to the caliper body so
that the stylus bears on the disc at a point
approximately 1 In. (25·4 mm) from the outer edge.