Chevrolet 10 series 1973, Overhaul Manual

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BRAKES 5 -2 3
IN S P E C T IO N T A B L E
Part
Inspect For
C orrective A c tio n
Diaphragm Support Plate 1. Cracks, d istortion ,
chipping, damaged
seats, pitted or rough
holes.
1. Clean up or replace.
2. Worn seal surfaces
(tubes).
2. Replace
3. Rough or uneven
valve seat.
3. Replace
4. Open passages and flo w
holes.
4. Clean
Poppet Valve
1. D eterioration o f rubber
or warped valve face.
1. Replace
A ir Valve - Push Rod
Assembly
1. A ir valve: scratches,
dents, d isto rtio n , or
corrosion o f I.D. or O.D.
A ll seats to be smooth
and free o f nicks and
dents.
1. Do not repair - replace.
2. Push rod must move freely
in air valve, but must not
pull out.
2. If w orn, replace air valve -
push rod assembly.
F ront and Rear Housings
1. Scratches, scores, pits,
dents, or other damage
affecting rolling or seal­
ing o f diaphragm or other
seals.
1. Replace, unless easily repaired.
2. Cracks, damage at ears.
damaged threads on studs.
2. Replace, unless easily repaired.
3. Bent or nicked locking
lugs.
3. Replace, unless easily repaired.
4. Loose studs.
4. Replace or repair.
A ir Filters and Silencer
1. D irty
1. Replace
OVERHAUL MANUAL