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BRAKES
5-18
SCREW
COVER
--
VIEW
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A
FRONT
4640
Fig. 5-1 9 Parking Brake Lever and Equalizer
-
H
Series
Combination Valve Replacement
The combination valve is not repairable and must be
serviced as a complete assembly.
I.
Disconnect hydraulic lines at combination valve. Plug
lines to prevent loss of fluid and entrance of dirt. Disconnect
warning switch wiring harness from valve switch terminal.
See Figures
5-26, 5-27, 5-28
and
5-29.
2.
Remove combination valve.
3. Install combination valve by reversing removal steps.
4. Bleed entire brake system. Do not move car until a
firm brake pedal is obtained.
MASTER CYLINDER
FILLING BRAKE MASTER CYLINDER
The master cylinder must be kept properly filled to
insure adequate reserve and to prevent air from entering the
hydraulic system. However, because of expansion due to heat
absorbed from brakes and from engine, master cylinder must
not be overfilled.
The brake fluid reservoir is on the master cylinder which
is located under the hood on the left side of the dash.
Thoroughly clean reservoir cover before removal to
avoid getting dirt into reservoir. Remove cover and
diaphragm.
Add fluid as required to bring level to 1/4" (plus or
minus 1/8") from the lowest portion of the top of each
reservoir. Use Delco Supreme No.
I I
Hydraulic Brake Fluid
or equivalent.
Do not use shock absorber fluid or any other fluid which
contains mineral oil. Do not use a container which has been
used for mineral oil or a container which is wet from rubber
parts in the hydraulic brake system and water will mix with
brake fluid, lowering the fluid boiling point. Keep all fluid
containers capped to prevent water contamination.
MASTER CYLINDER OVERHAUL
Removal of Brake Master Cylinder
1. Disconnect brake pipes from master cylinder and tape
end of pipes to prevent entrance of dirt.
2.
(Manual brake only) Disconnect brake pedal from
master cylinder push rod.
3: Remove two nuts holding master cylinder to dash or
power cylinder and remove master cylinder from car. Be
careful not to drip brake fluid on exterior paint.
Disassembly of Brake Master Cylinder
1. Clean outside of master cylinder thoroughly. Remove
reservoir cover and diaphragm. Turn cylinder over and pump
push rod by hand to drain all brake fluid. Always discard
used fluid.
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