Dodge ZB 2005, Руководство по обслуживанию

Страница: 1068 / 1873

STANDARD PROCEDURE - REFRIGERANT SYS-
TEM RECOVERY).
(3) Open the suction and discharge valves and
start the vacuum pump. The vacuum pump should
run a minimum of 45 minutes prior to charge to
eliminate all moisture within the refrigerant system.
When the suction gauge reads -88 kPa (-26 in. Hg)
vacuum or greater for 30 minutes, close all valves
and turn off vacuum pump. If the refrigerant system
fails to reach the specified vacuum, the refrigerant
system likely has a leak that must be corrected. If
the refrigerant system maintains specified vacuum
for at least 30 minutes, start the vacuum pump, open
the suction and discharge valves. Then allow the sys-
tem to evacuate an additional 10 minutes.
(4) Close all valves. Turn off and disconnect the
vacuum pump.
(5) Charge the refrigerant system (Refer to 24 -
HEATING & AIR CONDITIONING/PLUMBING -
STANDARD PROCEDURE - REFRIGERANT SYS-
TEM CHARGE).
REFRIGERANT SYSTEM CHARGE
WARNING: Refer to the applicable warnings and
cautions for this system before performing the fol-
lowing operation (Refer to 24 - HEATING & AIR
CONDITIONING/PLUMBING - WARNINGS) and (Refer
to 24 - HEATING & AIR CONDITIONING/PLUMBING -
CAUTIONS). Failure to follow the warnings and cau-
tions could result in possible personal injury or
death.
NOTE: Always refer to the A/C Underhood Specifi-
cation Label for the refrigerant fill capacity of the
vehicle being serviced.
After all refrigerant system leaks have been
repaired and the refrigerant system has been evacu-
ated, a refrigerant charge can be injected into the
system. For the proper amount of the refrigerant
charge, always refer to the A/C Underhood Specifica-
tion Label located in the engine compartment. An
R-134a refrigerant recovery/recycling/charging sta-
tion that meets SAE Standard J2210 must be used to
charge the refrigerant system with R-134a refriger-
ant. See the operating instructions supplied by the
equipment manufacturer for proper care and use of
this equipment.
CHARGING PROCEDURE
CAUTION: A small amount of refrigerant oil is
removed from the A/C system each time the refrig-
erant system is recovered and evacuated. Before
charging the A/C system, you MUST replenish any
oil lost during the recovery process. Refer the
equipment manufacturer instructions for more infor-
mation.
(1) Evacuate the refrigerant system (Refer to 24 -
HEATING & AIR CONDITIONING/PLUMBING -
STANDARD PROCEDURE - REFRIGERANT SYS-
TEM EVACUATE).
(2) A manifold gauge set and a R-134a refrigerant
recovery/recycling/charging station that meets SAE
standard J2210 should still be connected to the A/C
refrigerant system.
(3) Measure the proper amount of R-134a refriger-
ant and heat it to 52° C (125° F) with the charging
station. See the operating instructions supplied by
the equipment manufacturer for proper use of this
equipment.
(4) Open both the suction and discharge valves,
then open the charge valve to allow the heated
refrigerant to flow into the system.
(5) When the transfer of refrigerant has stopped,
close both the suction and discharge valves.
(6) If all of the refrigerant charge did not transfer
from the dispensing device, open all of the windows
in the vehicle and set the A/C-heater controls so that
the A/C compressor is engaged and the blower motor
is operating at its lowest speed setting. Run the
engine at a steady high idle (about 1400 rpm). If the
A/C compressor will not engage, test the compressor
clutch control circuit and repair as required.
(7) Open the suction valve to allow the remaining
refrigerant to transfer to the refrigerant system.
WARNING: Take care not to open the discharge
(high pressure) valve at this time.
(8) Close the suction valve and test the A/C system
performance (Refer to 24 - HEATING & AIR CONDI-
TIONING - STANDARD PROCEDURE - A/C PER-
FORMANCE TEST).
(9) Disconnect the charging station and manifold
gauge set from the refrigerant system service ports.
(10) Install the protective caps onto the refrigerant
system service ports.
A/C COMPRESSOR
DESCRIPTION
A/C COMPRESSOR
The A/C system uses a Denso 10S17C ten cylinder,
double-acting swash plate-type A/C compressor (Fig.
4). This A/C compressor has a fixed displacement of
170 cubic centimeters (10.374 cubic inches), and has
both the suction and discharge ports located on the
cylinder head at the rear of the compressor.
ZB
PLUMBING 24 - 39
PLUMBING (Continued)