1948-1952 Shop Service Manual - - Hudson-Essex-Terraplane Club

BRAKES 15 - 7
DISASSEMBLING
REAR BRAKE
2. Put nozzle in master cylinder reservoir and open filler
bottle valve before starting. This will keep master cylinder
reservoir half full of fluid during bleeding operation.
The disassembly and reassembly procedure of the rear
brake is the same as for the front brakes, except for the
removal of brake shoe lever to shoe pin (11), Figure 8,
brake shoe cable lever (10), and cable lever strut (13).
After the brake shoe to anchor springs (3) and (5) have
been taken off, remove nut and take out pin (11). Strut (13)
and spring (14) will drop out of place. Disconnect end of
brake cable from brake shoe cable lever.
To reassemble, reverse procedure of disassembly.
BLEEDING BRAKE LINES
Air in the braking system seriously impairs braking
efficiency resulting in soft, spongy pedal action. It must
therefore, be removed by bleeding the lines if the fluid
level has been allowed to get too low or any part of the
braking system has been disconnected or replaced.
NOTE: The bleeding operation should be performed
at only one wheel cylinder at a time and repeated at
other wheel cylinders if necessary. Start at left front
wheel and proceed to Right front, Left rear, and
Right rear if required.
CAUTION: Do not depress brake pedal while the
brake drums are removed unless a bleeder valve has
been opened for bleedingbrake lines. Remove dirt
around filler cap before removal for inspection of
fluid level.
NOTE: If there is any doubt as to the grade of brake
fluid present in the system, flush out entire system
with a good grade of clean alcohol.
1. Fill "Master Cylinder Filler Bottle J-713" with Genuine
"Hudson Hydraulic Brake Fluid."
FIGURE 9
3. Remove screw, Figure 9, from end of bleeder valve and
attach bleeder tube X-628. Insert free end of bleeder tube
into a clean pint jar partly filled with brake fluid.
4. Unscrew bleeder valve, Figure 9, three fourths of a turn
and depress foot pedal by hand, allowing pedal to return to
released position slowly. This gives a pumping action
which forces fluid through the tubing and out at the wheel
cylinder carrying with it any air that may be present.
After the brake pedal is depressed, it must be allowed to
return slowly, otherwise air may be drawn into the system.
NOTE: The free end of the bleeder hose must be kept
below the surface of the fluid in the pint jar.
Watch the flow of fluid from hose and when all air bubbles
cease to appear, the bleeder screw should be closed tightly
before taking the bleeder hose out of the container of fluid.