Chevrolet 10 Series 1970 Service Manual page 250

BRAKES 5-12
Adjustm ent—O ff Vehicle
a. With parking brake drum off, use sp ecial T oo l
J-21177 o r J-22364, Drum to Brake Shoe C le a r ­
ance Gauge, to check d ia m eter o f drum c le a r ­
ance surface. (F ig . 24).
b. Turn the tool to the opposite side and fit o v e r
brake shoes by turning the star wheel until the
F ig . 2 2 — P -2 0 -3 0 P arking Brake System
F ig . 21 — P -10 P arking Brake System
c. Rotate the gauge around the brake shoe lining
d. Install p ro p e lle r shaft flange at mainshaft as out­
e.
blocks.
gauge just slid es o v e r the linings. (F ig . 25).
surface to insure p rop er clearan ce.
lined in transm ission section.
L o w er r e a r w heels. Rem ove
Fig. 2 3 —In te rn a l E xpanding P arking Brake
jack and wheel
CHEVROLET TRUCK SERVICE MANUAL