Chevrolet 10 Series 1967, Service Manual

Page: 33 / 605

HEATER AND AIR CONDITIONING 1A-5
3. Remove the screw attaching blower housing brace
to cowl panel.
4. Remove screw attaching core case brace to cowl
panel.
5. Unclip the blower wire at the blower flange terminal
and note or mark the motor flange position in re­
lation to the blower case.
6
. Remove the blower assembly mounting screws.
7. Lower the blower assembly. Lift upward on the
heater assembly until the blower wheel clears the
housing opening while pulling downward and rear­
ward on the blower assembly to remove it.
8
. Remove the nut attaching the blower wheel to the
motor shaft and separate the assembly.
Installation
1. Assemble the blower wheel to the motor with the
open end of the blower away from the motor.
2. Position the blower assembly below the opening in
the housing and lift the heater assembly until the
blower wheel will enter the opening. Lift the assem­
bly into position and mount to the housing.
3. Connect the motor wire.
4. Replace core case brace to cowl panel screw and the
blower housing brace to cowl panel screw.
5. Replace the floor mat and connect the battery ground
cable.
BLOWER, CORE CASE, AND CORE ASSEMBLY
10-60 Series (Exc. Tilt Cab and Chevy Van)
Removal
1. Drain radiator.
2. Disconnect battery ground cable.
3. Unclip the blower motor wire at the blower flange
terminal.
4. Disconnect heater hoses at the core tubes.
5. (Under dash) Remove the seal on the temperature
door cable at the distributor duct adapter and dis­
connect the cable from the temperature door.
6
. (10-30 Series) In order to gain access to the lower
Fig . 9 - H eater Hoses
outboard case attachments, the right front fender
skirt should be loosened and moved. Remove enough
skirt mounting screws and bolts (from the rear for­
ward) to move the skirt a sufficient amount.
7. Remove the case retaining screws and sheet metal
nuts. Pull the case away from the mounting studs
and inboard to remove it.
8
. Remove the screws attaching the core retainers to
the case and remove the core.
F ig . 1 0 - Heater Distributor and Ducts
CHEVROLET TRUCK SERVICE M ANUAL