Anchor Pin Replacement; Relining Brake Shoes; Wheel C Y Lin D E R - Chevrolet CHEVY VAN G10 SERIES Service Manual

11. Install actu ato r return spring.
C A U T IO N : Do not pry actuator lever to install
return spring. Ease it in place using the end of a
screwdriver or other suitable fla t tool.
12. I f old brake pull back (return) springs are nicked,
distorted, or if strength is do u b tfu l, install new springs.
13. H ook springs in shoes using Tool J-8049 by installing the
prim ary spring from the shoe over the anchor pin and
then the spring from the secondary shoe over the wire
link end (Fig. 26).
14. Pry shoes away from the backing plate and lubricate shoe
contact surfaces w ith a thin coating o f brake lube (Fig.
25).
C A U T IO N : Be careful
facings.
15. A fter com pleting installation, make certain the actu ator
lever functions easily by hand operating the self-adjusting
feature (Fig. 27).
16. Follow the above procedure for bo th rear brakes.
17. A djust th e service brakes and the parking brake as
outlined under " M aintenance and A djustm ents" in this
section.
18. Install drum , w heel and tire, lower vehicle to floor and
test brake operation.

Relining Brake Shoes

If old brake shoes are to be relined, inspect shoes for
distortion and for looseness betw een the rim and web; these
are causes for discarding any shoe. If shoes are serviceable, be
governed by the follow ing points in installing new linings:
1. Remove old linings by drilling o u t rivets. Punching rivets
o u t will distort shoe rim . T horoughly clean surface o f
shoe rim and file o ff any burrs or high spots.
Fig. 2 7 —Checking A ctuating Lever Operation
to keep lubricant o ff
2. Use Chevrolet brake lining or equivalent and the rivets
included in lining package which are o f the correct size.
The rivets m ust fit the holes w ith the solid body o f rivet
extending through the shoe rim , b u t no farther.
C A U T IO N : Keep hands clean while handling brake
lining. Do not perm it oil or grease to come in
contact w ith lining.
3. S tart riveting at center o f shoe and lining and w ork
tow ard the ends. Use a roll set for riveting; a star set
m ight split the tubular end an d then the rivet would n ot
fill the hole. The prim ary lining is shorter than secondary
lining; therefore, the rivet holes at each end o f the shoe
rim are n o t used.
4. A fter riveting is com pleted, lining m ust seat snugly
against shoe w ith no m ore than .005" separation midway
betw een rivets. Check w ith a .0 0 4 " (G o) and a .006" (N o
G o) feeler gage.

ANCHOR PIN REPLACEMENT

Removal
1. Raise vehicle on a hoist.
2. Remove wheel and drum as outlined in this section.
3. Remove brake shoe pull back springs, link and guide
plate.
4. Disengage anchor pin lock and remove pin from flange
plate (Threaded ty pe).
Installation
1. Position anchor pin to flange plate, install lock washer
and torque pin. Lock by peening over washer tabs.
C A U T IO N : See "C a u tio n "
section.
2. Install brake shoe guide plate, link and pull back springs.
3. A djust brakes, install drum and wheel as outlined pre­
viously in this section.
4. Low er vehicle an d test brake operation.

WHEEL C Y LIN D E R

C A U T IO N : Always use denatured alcohol or brake
fluid to clean any wheel cylinder parts. Never use
mineral-base cleaning solvents such as gasoline, kero­
sene, carbon-tetrachloride, acetone, paint thinner or
units of like nature as these solvents deteriorate
rubber parts, causing them to become soft and
swollen in an extrem ely short tim e.
The wheel cylinder boots should be rem oved from a
cylinder body only w hen they are visibly dam aged or leaking
fluid. Wheel cylinders having to rn , cu t, or heat-cracked boots
should be com pletely overhauled.
BRAKES 5-13
on Page 1 of this
C H E V Y V A N SHOP M A N U A L