Chevrolet 30 Series 1967 Service Manual page 37

BLOWER SWITCH
All Heaters
Blower switch replacement is covered as a part of
CONTROL ASSEMBLY.
necessary steps.
RESISTOR UNIT
Deluxe Air Heater
Removal
1. Remove glove box assembly.
2. Unplug harness connector from resistor unit. Re­
move the unit attaching screws and remove unit.
Installation
1. Place resistor unit in distributor duct and drive in
attaching screws. Connect harness connector to unit.
2. Install glove box assembly.
Chevy Van
Removal
1. Remove the glove box assembly.
2. Remove heater case and distributor duct to floor
pan attaching screws.
fully by allowing the core tubes to slide through the
grommet in the floor.
3. Pull the case rearward far enough to gain access
to the resistor unit.
4. Disconnect the blower harness connector and remove
the resistor unit mounting screws.
unit.
F ig . 17 - T ilt Cab W iring
Refer to that section for the
Lower the assembly care­
Remove resistor
HEATER AND AIR CONDITIONING 1A-9
Installation
1. Place resistor unit in duct and drive in mounting
screws.
2. Connect the blower harness connector.
3. Mount the heater assembly to the toe pan and in­
stall the glove box assembly.
Tilt Cab
Removal
1. Remove the distributor duct to cowl mounting screws.
Remove the distributor duct to blower case attach­
ing screws.
2. Disconnect the defroster ducts at the distributor and
move the distributor away from the cowl until the
resistor unit is accessible.
3. Disconnect the blower harness connector and re­
move the unit mounting screws.
Installation
1. Place the resistor unit in the distributor duct and
drive in the mounting screws. Connect the blower
harness connector.
2. Place the distributor duct in position and assemble
it to the blower case.
3. Mount the case to the cowl and connect the defroster
ducts to it.
THERMOSTATIC VALVE
Tilt Cab
Replacement of the thermostatic valve (tilt cab only)
is covered under BLOWER AND CORE CASE AND CORE.
Remove unit.
CHEVROLET TRUCK SERVICE M ANUAL