Chrysler DODGE D150 1993 Service Manual page 1473

24 - 36 HEATING AND AIR CONDITIONING
•
(9) Remove control.
INSTALLATION
(1) Connect temperature control cable.
(2) Install illumination light.
(3) Install 3 wiring connectors to push button
switch and vacuum harness.
(4) Connect blower motor control switch wiring
connector.
(5) Place control unit in place in instrument panel
and secure with attaching screws.
(6) Install faceplate.
VACUUM ACTUATORS
The mode and air circulator actuators are serviced
through the glove box opening after opening the
glove box past its stops.
The heater/defroster actuator is serviced under the
instrument panel on the left end of the A/C unit.
EVAPORATOR HEATER ASSEMBLY
REMOVAL
(1) Disconnect the negative cable from the battery.
(2) Discharge refrigerant from the A/C system.
(3) Disconnect refrigerant and heater lines from
unit on engine side.
(4) Plug heater hoses and unit and remove conden­
sate tube (Fig. 9).
(5) Move transfer case and/or gear shift levers
away from instrument panel.
(6) Remove right cowl side trim panel, if so
equipped.
(7) Remove glove box by removing mounting
screws at base and swinging out from the bottom to
avoid catch and stops.
(8) Remove structural brace through glove box
opening. Remove screws, loosen nuts.
(9) Remove ash receiver.
(10) Remove right half of lower reinforcement by
removing screws attaching it to the instrument panel
and the sctew attaching it to the cowl side trim
panel.
(11) Detach radio ground strap.
(12) Remove center distribution duct.
(13) Remove floor air distribution duct.
(14) Disconnect temperature control cable from
unit through glove box and tape out of way.
(15) Disconnect vacuum lines from extension on
control unit and detach vacuum lines from defroster
duct (Fig. 10).
(16) Remove wiring connector from resistor block.
(17) Remove blower motor connector on engine
side.
(20) Remove screw t h a t retains the evaporator
heater assembly to cowl side sheet metal.
(21) Remove the evaporator heater assembly. Plas­
tic instrument panel may have to be flexed outward.
Fig. 10 Evaporator Heater Assembly
DISASSEMBLE
(1) Remove n u t t h a t attaches 3 door arms to doors
on the top cover of the unit. Remove the 3 arms (Fig.
11).
A T T A C H I N G
N U T S
RB463
Fig. 11 Door Arms
(2) Remove screws to separate cover from housing.
(3) Slide out evaporator core.
(4) Remove mounting screw and slide out heater
core.
(5) Disconnect blower motor feed wire on engine
side.
(6) Remove retaining screws to separate blower
motor from housing.
(7) Separate fan from motor (Fig. 12).
(8) Inspect all parts.
ASSEMBLE
(1) Position the fan onto the motor.
(2) Position the blower motor to the housing.
Tighten the retaining screws.
(3) Connect blower motor feed wire on engine side.
(4) Slide the heater core in and install the mount­
ing screws.
(5) Install evaporator core.
(6) Position the cover onto the housing. Install and
tighten the screws.
(18) Disconnect vacuum lines on engine side, make
sure grommet is free from dash panel.
(19) Remove retaining nuts on engine side.