Pontiac FIREBIRD 1972 Service Manual page 31

1-10 1972 PONTIAC SERVICE MANUAL
5. Move lever back to full HOT. If temperature door
4. Start engine and set fan switch for HI blower speed.
cannot be heard hitting its,seat, repeat adjustment There should be no air flow out of purge opening at
procedure.
right hand side of heater case. If there is air leakage
at the purge opening repeat adjustment procedure.
AIR CONTROL CABLE
DEFROST CABLE
1. Place control panel selector (air control) lever in
HEATER.
2. Hold heater case air door in the heater position
(crank rotated full clockwise as viewed from above)
and adjust air control cable turnbuckle (Fig. 1A-10)
until wire loop on cable lines up with pin on heater
air door crank.
3. Place wire loop over crank pin and secure attachment
with push-nut. Move control panel selector lever to
1. Place control panel selector lever in DEFROST.
2. Hold heater case defroster door crank in defrost posi-
tion (crank rotated full clockwise as viewed from
driver position) and adjust turnbuckle on defrost ca-
ble (Fig. 1-10) until wire loop on cable lines up with
pin on defroster door crank arm.
3. Move control panel selector lever to HEATER, place
cable loop on crank arm pin and secure cable attach-
OFF and back to HEATER position detent. ment with push-nut.
B L A C K
-
T O V A C U U M
/
G R E E N S T R I P E
V I E W B
- -
Fig. 1-1 1 G Series Control Cable and Vacuum Hose Routing