Nissan Titan A60. Manual — part 569
PRECAUTIONS
HA-5
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• For your safety and the customer's satisfaction, read and follow all manufacturer's operating instructions and
precautions prior to performing work.
• A compressor shaft seal should not be repaired because of dye seepage. The compressor shaft seal should
only be repaired after confirming the leak with an electronic refrigerant leak detector (J-41995).
• Always remove any dye from the leak area after repairs are complete to avoid a misdiagnosis during a future
service.
• Do not allow dye to come into contact with painted body panels or interior components. If dye is spilled,
clean immediately with the approved dye cleaner. Fluorescent dye left on a surface for an extended period of
time cannot be removed.
• Do not spray the fluorescent dye cleaning agent on hot surfaces (engine exhaust manifold, etc.).
• Do not use more than one refrigerant dye bottle (1/4 ounce / 7.4 cc) per A/C system.
• Leak detection dyes for HFC-134a (R-134a) and CFC-12 (R-12) A/C systems are different. Do not use HFC-
134a (R-134a) leak detection dye in CFC-12 (R-12) A/C systems or CFC-12 (R-12) leak detection dye in
HFC-134a (R-134a) A/C systems or A/C system damage may result.
• The fluorescent properties of the dye will remain for over three (3) years unless a compressor failure occurs.
A/C Identification Label
INFOID:0000000006163092
Vehicles with factory installed fluorescent dye have this identification label on the underside of hood.
Precaution for Refrigerant Connection
INFOID:0000000006163093
A new type refrigerant connection has been introduced to all refrigerant lines except the following locations.
• Expansion valve to cooling unit
• Evaporator pipes to evaporator (inside cooling unit)
• Refrigerant pressure sensor
FEATURES OF NEW TYPE REFRIGERANT CONNECTION
• The O-ring has been relocated. It has also been provided with a groove for proper installation. This reduces
the possibility of the O-ring being caught in, or damaged by, the mating part. The sealing direction of the O-
ring is now set vertically in relation to the contacting surface of the mating part to improve sealing character-
istics.
• The reaction force of the O-ring will not occur in the direction that causes the joint to pull out, thereby facili-
tating piping connections.
O-RING AND REFRIGERANT CONNECTION
SHA815E
HA-6
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PRECAUTIONS
A/C Compressor and Condenser
ALIIA0402ZZ
1.
High-pressure service valve
2.
Grommet
3.
High-pressure pipe
4.
Refrigerant pressure sensor
5.
Condenser
6.
Compressor shaft seal
7.
High-pressure flexible hose
8.
Low-pressure flexible hose
9.
Low-pressure service valve
10. Low-pressure pipe
11. Expansion valve
12. Drain hose
13. Dryer & liquid tank
14. Liquid tank bracket
15. Junction pipe
Front
PRECAUTIONS
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CAUTION:
The new and former refrigerant connections use different O-ring configurations. Do not confuse O-
rings since they are not interchangeable. If a wrong O-ring is installed, refrigerant will leak at or
around the connection.
O-Ring Part Specifications*
*: Always check with the Parts Department for the latest parts information.
WARNING:
Make sure all refrigerant is discharged into the recycling equipment and the pressure in the system is
less than atmospheric pressure. Then gradually loosen the discharge side hose fitting and remove it.
CAUTION:
When replacing or cleaning refrigerant cycle components, observe the following.
• When the compressor is removed, store it in the same position as it is when mounted on the car.
Failure to do so will cause oil to enter the low pressure chamber.
• When connecting tubes, always use a torque wrench and a back-up wrench.
• After disconnecting tubes, immediately plug all openings to prevent entry of dirt and moisture.
• When installing an air conditioner in the vehicle, connect the pipes as the final stage of the opera-
tion. Do not remove the seal caps of pipes and other components until just before required for con-
nection.
• Allow components stored in cool areas to warm to working area temperature before removing seal
caps. This prevents condensation from forming inside A/C components.
• Thoroughly remove moisture from the refrigeration system before charging the refrigerant.
• Always replace used O-rings.
• When connecting tube, apply oil to circle of the O-rings shown in illustration. Be careful not to apply
oil to threaded portion.
Oil name: NISSAN A/C System Oil Type S or equivalent
• O-ring must be closely attached to dented portion of tube.
• When replacing the O-ring, be careful not to damage O-ring and tube.
• Connect tube until you hear it click, then tighten the nut or bolt by hand until snug. Make sure that
the O-ring is installed to tube correctly.
• After connecting line, conduct leak test and make sure that there is no leakage from connections.
When the gas leaking point is found, disconnect that line and replace the O-ring. Then tighten con-
nections of seal seat to the specified torque.
Connection
type
O-ring
size
D mm (in)
W mm (in)
New
8
6.8 (0.268)
1.85 (0.0728)
Former
10
9.25 (0.3642)
1.78 (0.0701)
New
12
10.9 (0.429)
2.43 (0.0957)
Former
11.0 (0.433)
2.4 (0.094)
New
16
13.6 (0.535)
2.43 (0.0957)
Former
14.3 (0.563)
2.3 (0.091)
New
19
16.5 (0.650)
2.43 (0.0957)
Former
17.12 (0.6740)
1.78 (0.0701)
New
24
21.8 (0.858)
2.4 (0.094)
SHA814E
HA-8
< PRECAUTION >
PRECAUTIONS
Precaution for Service of Compressor
INFOID:0000000006163094
• Plug all openings to prevent moisture and foreign matter from entering.
• When the compressor is removed, store it in the same position as it is when mounted on the car.
• When replacing or repairing compressor, follow “Maintenance of Oil Quantity in Compressor”
exactly. Refer to
HA-20, "Maintenance of Oil Quantity in Compressor"
.
• Keep friction surfaces between clutch and pulley clean. If the surface is contaminated with oil, wipe
it off by using a clean waste cloth moistened with thinner.
• After compressor service operation, turn the compressor shaft by hand more than 5 turns in both
directions. This will equally distribute oil inside the compressor. After the compressor is installed,
let the engine idle and operate the compressor for 1 hour.
• After replacing the compressor magnet clutch, apply voltage to the new one and check for normal
operation. Refer to
HA-33, "Removal and Installation for Compressor Clutch"
Precaution for Service Equipment
INFOID:0000000006163095
RECOVERY/RECYCLING EQUIPMENT
Follow the manufacturer's instructions for machine operation and machine maintenance. Never introduce any
refrigerant other than that specified into the machine.
ELECTRONIC LEAK DETECTOR
Follow the manufacturer's instructions for tester operation and tester maintenance.
VACUUM PUMP
1.
Plug
2.
O-ring
A.
Torque wrench
B.
Apply oil
C.
Do not apply oil to threads
D.
NG (no good)
E.
OK (okay)
F.
Inflated portion
WJIA1774E
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