Nissan Titan A60. Manual — part 568
HA-1
VENTILATION, HEATER & AIR CONDITIONER
C
D
E
F
G
H
J
K
L
M
SECTION
HA
A
B
HA
N
O
P
CONTENTS
HEATER & AIR CONDITIONING SYSTEM
PRECAUTION . . . . . . . . . . . ...
PRECAUTIONS . . . . . . . . . . . . ...
Precaution for Working with HFC-134a (R-134a) . ..
Precaution for Procedure without Cowl Top Cover
. ..
Contaminated Refrigerant . . . . . . . . . .....
General Refrigerant Precaution . . . . . . . ....
Precaution for Leak Detection Dye . . . . . . ...
A/C Identification Label . . . . . . . . . . .....
Precaution for Refrigerant Connection . . . . . ..
Precaution for Service of Compressor . . . . . ..
Precaution for Service Equipment . . . . . . .....
PREPARATION . . . . . . . . . . ...
PREPARATION . . . . . . . . . . . . ..
Special Service Tool . . . . . . . . . . . ...
HFC-134a (R-134a) Service Tool and Equipment .
Commercial Service Tool . . . . . . . . . .
SYSTEM DESCRIPTION . . . . . . . .
REFRIGERATION SYSTEM . . . . . . . ..
Refrigerant Cycle . . . . . . . . . . . . .
Refrigerant System Protection . . . . . . . .
Component . . . . . . . . . . . . . . . ..
OIL . . . . . . . . . . . . . . . . . ..
Maintenance of Oil Quantity in Compressor . . ...
PERIODIC MAINTENANCE . . . . . . .
OIL . . . . . . . . . . . . . . . . . ..
Maintenance of Oil Quantity in Compressor . . ...
REFRIGERATION SYSTEM . . . . . . . ..
HFC-134a (R-134a) Service Procedure . . . . ..
Checking of Refrigerant Leaks . . . . . . . .
FLUORESCENT LEAK DETECTOR . . . .
Checking System for Leaks Using the Fluorescent
Dye Leak Detector . . . . . . . . . . . . ...
Dye Injection . . . . . . . . . . . . . . .
ELECTRICAL LEAK DETECTOR . . . . .
Electronic Refrigerant Leak Detector . . . . . ...
REMOVAL AND INSTALLATION . . . ...
REFRIGERATION SYSTEM . . . . . . . .
Component . . . . . . . . . . . . . . . ..
HFC-134a (R-134a) Service Procedure . . . . ..
COMPRESSOR . . . . . . . . . . . . .
Removal and Installation for Compressor . . . ...
Removal and Installation for Compressor Clutch .
LOW-PRESSURE FLEXIBLE HOSE . . . .
Removal and Installation for Low-Pressure Flexi-
ble Hose . . . . . . . . . . . . . . . . ..
LOW-PRESSURE PIPE . . . . . . . . .
Removal and Installation for Low-Pressure Pipe . .
HIGH-PRESSURE FLEXIBLE HOSE . . . ...
Removal and Installation for High-pressure Flexi-
ble Hose . . . . . . . . . . . . . . . . ..
HIGH-PRESSURE PIPE . . . . . . . . .
Removal and Installation for High-pressure Pipe .
CONDENSER . . . . . . . . . . . . .
Removal and Installation for Condenser . . . . .
REFRIGERANT PRESSURE SENSOR . . .
Removal and Installation for Refrigerant Pressure
Sensor . . . . . . . . . . . . . . . . . .
EXPANSION VALVE . . . . . . . . . . .
Removal and Installation for Expansion Valve . .
HA-2
Removal and Installation of Liquid Tank . . . . .
AMBIENT SENSOR . . . . . . . . . . ...
Removal and Installation . . . . . . . . . ....
SERVICE DATA AND SPECIFICATIONS
(SDS) . . . . . . . . . . . . . . ..
SERVICE DATA AND SPECIFICATIONS
(SDS) . . . . . . . . . . . . . . . . .
PRECAUTIONS
HA-3
< PRECAUTION >
C
D
E
F
G
H
J
K
L
M
A
B
HA
N
O
P
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000006163086
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SR and SB section of this Service Man-
ual.
WARNING:
• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal
injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the SR section.
• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or electric power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers, always switch the Ignition OFF, disconnect the
battery, and wait at least 3 minutes before performing any service.
Precaution for Working with HFC-134a (R-134a)
INFOID:0000000006163087
WARNING:
• CFC-12 (R-12) refrigerant and HFC-134a (R-134a) refrigerant are not compatible. If the refrigerants
are mixed compressor failure is likely to occur. Refer to
HA-4, "Contaminated Refrigerant"
. To deter-
mine the purity of HFC-134a (R-134a) in the vehicle and recovery tank, use the recovery/recycling
equipment and refrigerant identifier.
• Use only specified oil for the HFC-134a (R-134a) A/C system and HFC-134a (R-134a) components. If
oil other than that specified is used, compressor failure is likely to occur.
• The specified HFC-134a (R-134a) oil rapidly absorbs moisture from the atmosphere. The following
handling precautions must be observed:
- When removing refrigerant components from a vehicle, immediately cap (seal) the component to
minimize the entry of moisture from the atmosphere.
- When installing refrigerant components to a vehicle, do not remove the caps (unseal) until just
before connecting the components. Connect all refrigerant loop components as quickly as possible
to minimize the entry of moisture into system.
- Only use the specified oil from a sealed container. Immediately reseal containers of oil. Without
proper sealing, oil will become moisture saturated and should not be used.
- Avoid breathing A/C refrigerant and oil vapor or mist. Exposure may irritate eyes, nose and throat.
Remove HFC-134a (R-134a) from the A/C system using certified service equipment meeting require-
ments of SAE J2210 [HFC-134a (R-134a) recycling equipment], or J2209 [HFC-134a (R-134a) recovery
equipment]. If accidental system discharge occurs, ventilate work area before resuming service.
Additional health and safety information may be obtained from refrigerant and oil manufacturers.
- Do not allow A/C oil to come in contact with styrofoam parts. Damage may result.
HA-4
< PRECAUTION >
PRECAUTIONS
Precaution for Procedure without Cowl Top Cover
INFOID:0000000006163088
When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc.
Contaminated Refrigerant
INFOID:0000000006163089
If a refrigerant other than pure HFC-134a (R-134a) is identified in a vehicle, your options are:
• Explain to the customer that environmental regulations prohibit the release of contaminated refrigerant into
the atmosphere.
• Explain that recovery of the contaminated refrigerant could damage your service equipment and refrigerant
supply.
• Suggest the customer return the vehicle to the location of previous service where the contamination may
have occurred.
• If you choose to perform the repair, recover the refrigerant using only dedicated equipment and contain-
ers. Do not recover contaminated refrigerant into your existing service equipment. If your facility does
not have dedicated recovery equipment, you may contact a local refrigerant product retailer for available ser-
vice. This refrigerant must be disposed of in accordance with all federal and local regulations. In addition,
replacement of all refrigerant system components on the vehicle is recommended.
• If the vehicle is within the warranty period, the air conditioner warranty is void. Please contact NISSAN Cus-
tomer Affairs for further assistance.
General Refrigerant Precaution
INFOID:0000000006163090
WARNING:
• Do not release refrigerant into the air. Use approved recovery/recycling equipment to capture the
refrigerant every time an air conditioning system is discharged.
• Always wear eye and hand protection (goggles and gloves) when working with any refrigerant or air
conditioning system.
• Do not store or heat refrigerant containers above 52
°C (125°F).
• Do not heat a refrigerant container with an open flame; if container warming is required, place the
bottom of the container in a warm pail of water.
• Do not intentionally drop, puncture, or incinerate refrigerant containers.
• Keep refrigerant away from open flames: poisonous gas will be produced if refrigerant burns.
• Refrigerant will displace oxygen, therefore be certain to work in well ventilated areas to prevent suf-
focation.
• Do not pressure test or leak test HFC-134a (R-134a) service equipment and/or vehicle air condition-
ing systems with compressed air during repair. Some mixtures of air and HFC-134a (R-134a) have
been shown to be combustible at elevated pressures. These mixtures, if ignited, may cause injury or
property damage. Additional health and safety information may be obtained from refrigerant manu-
facturers.
Precaution for Leak Detection Dye
INFOID:0000000006163091
• The A/C system contains a fluorescent leak detection dye used for locating refrigerant leaks. An ultraviolet
(UV) lamp is required to illuminate the dye when inspecting for leaks.
• Always wear fluorescence enhancing UV safety goggles to protect your eyes and enhance the visibility of
the fluorescent dye.
• The fluorescent dye leak detector is not a replacement for an electronic refrigerant leak detector. The fluo-
rescent dye leak detector should be used in conjunction with an electronic refrigerant leak detector (J-
41995).
PIIB3706J
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст