Sunbeam ALPINE I SERIES: APLINE II SERIES, Workshop Manual

Page: 134 / 413

/st
re-issue
Page 16
pedal adjustment, or to the holes being choked by
foreign matter, pressure will build up in the system.
In order that the rubber cup shall not be drawn Into
the holes in the piston head, a piston washer. (9)
is Interposed between the two parts; it is Impor­
tant that this washer be assembled as shown on the
illustration. (A Fig. 17).
To remove (Fig. 2)
Disconnect the pressure pipe from the cylinder
barrel. Remove the fixing bolts and detach the
cylinder and push rod. Unscrew the filler cap and
drain the fluid into a clean container. It is not
necessary to remove the clevis pin from the pedal,
just withdraw the cylinder from the push rod.
There Is no clrclip.
To dismantle
(Fig.
17)
Push the piston (10) down the bore of the cylinder
and remove the clrclip (13). Withdraw the piston,
piston washer (9), rubber cup (8), retainer (7) and
return spring (6). Using only the fingers to prevent
damage, remove the secondary cup (11) by stretch­
ing It over the end flange of the piston.
To assemble
Flt the secondary cup (11) on the piston (10), so that
the lip of the cup faces the piston head, and gently
work the cup round the groove with the fingers to
ensure that It is properly seated. Assemble the
WSM. 124
Section D (Clutch & Prop. Shaft)
retainer (7) on the smaller end of the return spring
and Insert the assembly into the cylinder. Insert
the main cup (8) Into the cylinder, lip foremost,
taking care not to damage or turn back the lip of
the cup; follow up with the piston washer, paying
particular attention to the illustration showing
method of assembly (Fig. 17 A). Insert the push rod
(14) In the piston and press the piston (10) into the
cylinder taking care not to damage or turn back the
lip of the secondary cup (11). Flt the clrclip (13)
ensuring that It beds evenly In rts groove and that
the collar in the push rod (14) Is retained by the
clrcllp. Fill the reservoir with clean Lockheed brake
fluid and test the master cylinder by pushing the
piston Inward and allowing It to return unassisted;
after a few applications, fluid should flow from the
outlet connection In the cylinder head.
To refit
Flt the boot (12) on the cylinder (5) so that the vent
hole In the boot will be at the bottom when the
cylinder Is mounted on the vehicle.
Attach the master cylinder to the mounting
bracket. Check the pedal adjustment (see page 15),
fill with fluid, bleed the system and check for
leakage by applying a firm pressure to the pedal
and Inspecting the "line" and connections.
SLAVE CYLINDER
For details see previous paragraphs In this Section.