Chevrolet Light Duty Truck 1973, Service Manual

Page: 298 / 979

5 - 3 2 BRAKES
Fig. 60--Caliper Explode
Removal
CAUTION:
Clean dirt from hose to caliper
connection before proceeding with removal.
1. Remove master cylinder cover and observe brake
fluid level in front reservoir. If reservoir is more
than 1/3 full, siphon the necessary amount out to
bring the level to 1/3 full. This step is taken to
avoid reservoir overflow when the caliper piston is
pushed back into its bore. Discard the brake fluid
removed. Never reuse brake fluid.
2. Raise the vehicle and remove the front wheels.
3. Push the piston back into its bore. This can be
accomplished by using a
"C"
clamp as shown in
Figure 54.
4. Remove the hose to caliper bolt and cap or tape the
open connections to prevent dirt from entering the
hose or caliper. Discard the copper gaskets.
5. Remove the caliper assembly and then remove the
brake shoes from the caliper.
CAUTION:
Mark disc pad locations if pads are
to be reinstalled.
Disassembly
1. Clean the exterior of the caliper using clean brake
fluid and place on a clean work surface.
2. Drain the brake fluid from the caliper.
WARNING: Do not place the fingers in front
of the piston in an attempt to catch or protect
it when applying compressed air.
3. Using clean shop towels, pad the interior of the
caliper and remove the piston by directing
compressed air into the caliper inlet hole (fig. 61).
CAUTION:
Use just enough air pressure to ease
the piston out of the bore. Do not blow piston
out of the bore.
NOTE: An alternate method of removing the
LIGHT DUTY TRUCK SERVICE MANUAL