Chevrolet Light Duty Truck 1973 Service Manual page 32

1A-6 HEATER A N D AIR C O N D IT IO N IN G
assembly (see "Heater Distributor and Core-
Replacement").
4. Disconnect the right hand heater outlet hose and
the two defroster hoses from the distributor duct.
5. Disconnect the air and defroster door cables by
prying off the eyelet clips and removing the cable
attaching screws.
6. Pull the center distributor duct to the right and
remove it from the vehicle.
7. To install, reverse Steps 1-6 above.
NOTE: Check cable and door operation;
cables should be free from kinks or binding
and doors should close properly. If cable
adjustment is necessary, see "Bowden Cable-
Adjustment."
LEFT DISTRIBUTOR DUCT - G Models
Replacement (Fig. 8)
1. Disconnect the battery ground cable.
Fig. 7 -Heater Hose Routings
2. Unsnap the engine cover front latches. Remove the
two cover to floorpan screws and remove the cover.
3. Remove the duct bracket screw and remove the
duct.
4. To install, reverse Steps 1-3.
NOTE: All three bowden cables are routed
under the duct. It may be necessary to hold
the cables down as the duct is being installed.
Be sure the left duct is fully installed over the
center duct.
DEFROSTER DUCT
The defroster hose and outlet assemblies are illustrated
in Figure 9.
LIGHT DUTY TRUCK SERVICE MANUAL