Chevrolet 10 Series 1970 Service Manual page 305

PUSH LOCK SLEEVE IN TO
DISENGAGE HEAD OF WORM
SHAFT TO MAKE ADJUSTMENT
LOCK SLEEVE MUST COME OUT
AND ENGAGE HEAD OF WORM
SHAFT TO LOCK ADJUSTMENT
F ig . 109—S lack A d ju s te r— N u t Lock S leeve
F ig . 110—S a fe ty V a lv e
BP__
'Oft
1 1
!is «
>» •Hi
f r -«r<
"■w
p s
i*
PH
tr-^as
F ig . I l l — Low Pressure S w itch
F ig . 112—S in g le C heck V a lv e
UPPERBODY
SPRING
SPRING CAP
D IA P H R A G M
LOW ER BO D Y
F ig . 113— Pressure P ro te c tio n V a lv e (Cross S ection )
BRAKES 5-67
f
* —"PB
m—m
."pa
..'Pp
~ ~
ISP
CHEVROLET TRUCK SERVICE MANUAL