Dodge RAM TRUCK 1500 1995 Service Manual page 1688

B R
HEATING
;
A N D AIR CONDITIONING 24-11
COMPONENT
S E R V I C E
INDEX
page
Accumulator 26
Blower Motor and Wheel . 20
Blower Motor Resistor 21
Condenser 26
Control Panel 19
Defroster Duct
. 26
Evaporator Core
23
Fixed Orifice Tube 26
Heat / Defrost Door . 25
Heat / Defrost Door Actuator
25
Heater Core
. 22
R E F R I G E R A N T LINE C O U P L E R S
REVIEW WARNINGS AND CAUTIONS IN
THIS GROUP BEFORE PERFORMING THE
FOLLOWING PROCEDURE*
REMOVAL
(1) Recover refrigerant system into a recovery/recy­
cle device.
(2) Remove the secondary clip'from the coupling.
Fit the appropriate Spring Lock Coupling Tool from
A/C Tool Kit 6125 (Fig. 1).
Fig. 1 Spring Lock Coupling Disconnect
(3) Close the tool and push into the open side of
the cage to expand garter spring and release female
fitting.
The garter spring may not release if the tool is
cocked while pushing it into the cage opening.
page
Heater—A/C Housing 21
High Pressure Cut-Out Switch . . . . . . . . . . . . . . . . 27
Panel / Defrost Door 26
Panel / Defrost Door Actuator 25
Recirculating Air Door 24
Recirculating Air Door Actuator 23
Refrigerant Line Couplers 19
Temperature / Blend Air Door 24
Temperature / Blend Air Door Cable 24
Vacuum Reservoir ... 27
(4) After garter spring is expanded, pull fittings
apart within the tool.
(5) Remove the tool from the disconnected cou­
pling.
(6) Separate the two ends of the coupling.
INSTALL
(1) Check to ensure that the garter spring is in the
cage of the male fitting. If the garter spring is miss­
ing, install a new spring by pushing it into the cage
opening. If the garter spring is damaged, remove it
from the cage with a small wire hook (DO NOT use a
screwdriver) and install a new spring.
(2) Clean all dirt or foreign material from both
pieces of the coupling.
(3) Install new O-rings on the male fitting.
CAUTION: Use only the specified O-rings as they
are made of a special material for the R-134a sys­
tem. The use of any O-ring other than the specified
O-ring may allow the connection to leak intermit­
tently during vehicle operation.
(4) Lubricate the male fitting and O-rings and the
inside of the female fitting with clean R-134a (SP20
PAG) refrigerant oil.
(5) Fit female fitting to male fitting and push until
garter spring snaps over flared end of female fitting.
(6) Ensure coupling engagement by pulling back on
the line.
(7) Install secondary clip on coupling.
CONTROL P A N E L
REMOVAL
(1) Disconnect the negative cable from the battery.
(2) Remove the heat and A/C controller (refer to
Group 8E, Instrument Panel and Gauges) (Fig. 2).
(3) Disconnect the vacuum connector on heater and
A/C vehicles (Fig. 3).