Jeep Cherokee 2000, Руководство по обслуживанию

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(9) Carefully remove the foam seal from the heater
core and evaporator coil tube mounting flange of the
heater-A/C housing. If the seal is deformed or dam-
aged, it must be replaced.
(10) Use a screwdriver to pry off the two snap clips
that help secure the upper and lower heater-A/C
housing halves to each other.
(11) Remove the 14 screws that secure the upper
and lower heater-A/C housing halves to each other.
(12) Carefully separate the upper heater-A/C hous-
ing half from the lower half.
ASSEMBLY
(1) Assemble the upper heater-A/C housing half to
the lower half. During assembly, be certain of the fol-
lowing:
(a) That each of the mode door pivot shaft ends
is properly engaged in its pivot hole (Fig. 42).
(b) That the blower motor venturi ring is prop-
erly indexed and installed.
(c) If the unit is equipped with air conditioning,
that the evaporator coil tube rubber seal is prop-
erly positioned in the grooves in both the upper
and lower heater-A/C housing halves.
(2) Install the 14 screws and two snap clips that
secure the upper and lower heater-A/C housing
halves to each other. Tighten the screws to 2.2 N·m
(20 in. lbs.).
(3) Install the blower motor and wheel unit in the
heater-A/C housing. See Blower Motor in this group
for the procedures.
(4) Install the foam seals on the flanges around
the blower motor opening and the heater core and
evaporator coil tube mounting flange of the heater-
A/C housing.
(5) Insert the vacuum supply line and connector
through the foam seal on the heater core and evapo-
rator coil tube mounting flange of the heater-A/C
housing.
(6) If the unit is equipped with air conditioning,
reinstall the evaporator coil tube clamp. Tighten the
mounting screw to 2.2 N·m (20 in. lbs.).
(7) Engage the heater-A/C wire harness connector
and blower motor relay wire harness connector
push-in retainers with their mounting holes in the
heater-A/C housing.
(8) Engage the vacuum harness to the routing
clips and plug in the vacuum harness connector at
the floor door actuator and, if the unit is so equipped,
at the recirculation air door actuator.
(9) Install the heater-A/C housing in the vehicle.
INSTALLATION
(1) Position the heater-A/C housing to the dash
panel. Be certain that the evaporator condensate
drain tube and the housing mounting studs are
inserted into their correct mounting holes.
(2) Install and tighten the five nuts onto the heat-
er-A/C housing mounting studs on the engine com-
partment side of the dash panel. Tighten the nuts to
6.2 N·m (55 in. lbs.).
(3) If the evaporation canister was repositioned
during the removal procedure, reinstall it to its
proper position.
(4) Connect the heater-A/C system vacuum supply
line connector to the tee fitting near the heater core
tubes.
(5) Unplug or remove the tape from the heater
core tubes. Connect the heater hoses to the heater
Fig. 41 Heater-A/C Housing Disassembly
1 – SEALS
2 – EVAPORATOR TUBE CLAMP
3 – CLIPS
4 – HEATER CORE TUBES
5 – VACUUM SUPPLY LINE
6 – BLOWER MOTOR
Fig. 42 Heater-A/C Housing Assembly
1 – BLOWER MOTOR VENTURI RING
2 – BLEND-AIR DOOR PIVOT
3 – EVAPORATOR COIL TUBE RUBBER SEAL
4 – RECIRCULATION AIR DOOR PIVOTS
24 - 38 HEATING AND AIR CONDITIONING
XJ
REMOVAL AND INSTALLATION (Continued)