charging NISSAN TIIDA 2007 Service Service Manual

REFRIGERATION SYSTEM
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REFRIGERATION SYSTEM
HFC-134a (R-134a) Service ProcedureINFOID:0000000001396444
SETTING OF SERVICE TOOLS AND EQUIPMENT
Discharging Refrigerant
WARNING:
Avoid breathing A/C refrigerant and oil vapor or mist. Exposure may irritate eyes, nose and throat.
Remove HFC-134a (R-134a) refrigerant from the A/C system using certified service equipment meeting
requirements of SAE J2210 HFC-134a (R-134a) recycling equipment or SAE J2201 HFC-134a (R-134a)
recovery equipment. If an accidental system discharge occurs, ventilate the work area before resum-
ing service. Additional health and safety information may be obtained from the refrigerant and oil man-
ufacturers.
Evacuating System and Charging Refrigerant
1. Shut-off valve 2. A/C service valve 3. Recovery/recycling equipment
A. Preferred (best) method
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1. Shut-off valve 2. A/C service valve 3. Recovery/recycling equipment
4. Refrigerant container (HFC-134a) 5. Weight scale (J-39650) 6. Evacuating vacuum pump (J-39699)
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HA-22
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REFRIGERATION SYSTEM
Checking of Refrigerant Leaks
INFOID:0000000001396447
Perform a visual inspection of all refrigeration parts, fittings, hoses and components for signs of A/C oil leak-
age, damage and corrosion. A/C oil leakage may indicate an area of refrigerant leakage. Allow extra inspec-
7. Manifold gauge set (J-39183) A. Preferred (best) method B. Alternative method
C. For charging
*1HA-19, "
Maintenance of Oil Quantity
in Compressor"
*2HA-22, "Checking of Refrigerant
Leaks"
*3HA-25, "Electronic Refrigerant Leak
Detector"
*4HAC-299, "Component Function
Check"
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HA-24
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FLUORESCENT LEAK DETECTOR
FLUORESCENT LEAK DETECTOR
Checking System for Leaks Using the Fluorescent Leak DetectorINFOID:0000000001396445
1. Check A/C system for leaks using the UV lamp and safety goggles J-42220 in a low sunlight area (area
without windows preferable). Illuminate all components, fittings and lines. The dye will appear as a bright
green/yellow area at the point of leakage. Fluorescent dye observed at the evaporator drain opening indi-
cates an evaporator core assembly (tubes, core or expansion valve) leak.
2. If the suspected area is difficult to see, use an adjustable mirror or wipe the area with a clean shop rag or
cloth, with the UV lamp for dye residue.
3. After the leak is repaired, remove any residual dye using dye cleaner J-43872 to prevent future misdiag-
nosis.
4. Perform a system performance check and verify the leak repair with an approved electronic refrigerant
leak detector.
NOTE:
Other gases in the work area or substances on the A/C components, for example, anti-freeze, windshield
washer fluid, solvents and oils, may falsely trigger the leak detector. Make sure the surfaces to be checked are
clean.
Clean with a dry cloth or blow off with shop air.
Do not allow the sensor tip of the detector to contact with any substance. This can also cause false readings
and may damage the detector.
Dye InjectionINFOID:0000000001396446
(This procedure is only necessary when recharging the system or when the compressor has seized and was
replaced.)
1. Check A/C system static (at rest) pressure. Pressure must be at least 345 kPa (3.45 bar, 3.52 kg/cm
2, 50
psi).
2. Pour one bottle (1/4 ounce / 7.4 cc) of the A/C refrigerant dye into the injector tool J-41459.
3. Connect the injector tool to the A/C low-pressure side service fitting.
4. Start engine and switch A/C ON.
5. When the A/C operating (compressor running), inject one bottle (1/4 ounce / 7.4 cc) of fluorescent dye
through the low-pressure service valve using dye injector tool J-41459 (refer to the manufacture’s operat-
ing instructions).
6. With the engine still running, disconnect the injector tool from the service fitting.
CAUTION:
Be careful the A/C system or replacing a component, pour the dye directly into the open system
connection and proceed with the service procedures.
7. Operate the A/C system for a minimum of 20 minutes to mix the dye with the system oil. Depending on the
leak size, operating conditions and location of the leak, it may take from minutes to days for the dye to
penetrate a leak and become visible.

REFRIGERATION SYSTEM
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Refer to HA-4, "Precaution for Refrigerant Connection".
HFC-134a (R-134a) Service ProcedureINFOID:0000000001404234
SETTING OF SERVICE TOOLS AND EQUIPMENT
Discharging Refrigerant
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1. Evaporator 2. Expansion valve 3. Low-pressure service valve
4. High-pressure service valve 5. Refrigerant pressure sensor 6. Shaft seal
7. Drain hose N. Refrigerant leak checking order P. Tightening torque
Q. Wrench size R. O-ring size

HA-30
< ON-VEHICLE REPAIR >
REFRIGERATION SYSTEM
WARNING:
Avoid breathing A/C refrigerant and oil vapor or mist. Exposure may irritate eyes, nose and throat.
Remove HFC-134a (R-134a) refrigerant from the A/C system using certified service equipment meeting
requirements of SAE J2210 HFC-134a (R-134a) recycling equipment or SAE J2201 HFC-134a (R-134a)
recovery equipment. If an accidental system discharge occurs, ventilate the work area before resum-
ing service. Additional health and safety information may be obtained from the refrigerant and oil man-
ufacturers.
Evacuating System and Charging Refrigerant
1. Shut-off valve 2. A/C service valve 3. Recovery/recycling equipment
A. Preferred (best) method
WJIA2195E
1. Shut-off valve 2. A/C service valve 3. Recovery/recycling equipment
4. Refrigerant container (HFC-134a) 5. Weight scale (J-39650) 6. Evacuating vacuum pump (J-39699)
7. Manifold gauge set (J-39183) A. Preferred (best) method B. Alternative method
C. For charging
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COMPRESSOR
HA-33
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6. Remove bolts (A) from compressor (1), using power tools.
7. Remove compressor (1) downward from the engine compart-
ment.
INSPECTION FOR CLUTCH DISC TO PULLEY CLEARANCE
1. Check the clearance around the entire periphery of the clutch disc.
 Measure the clearance for the compressor as shown.
2. If specified clearance is not obtained, replace compressor.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
 Replace O-rings of low-pressure flexible hose and high-pressure flexible hose with a new ones, and
apply compressor oil when installing.
 When recharging refrigerant, check for leaks. Refer to HA-22, "
Checking of Refrigerant Leaks".
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Clutch disc to pulley clearance : 0.3 - 0.6 mm (0.012 - 0.024 in)
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COMPRESSOR
HA-35
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1. Check the clearance around the entire periphery of the clutch disc.
 Measure the clearance for the compressor as shown.
2. If specified clearance is not obtained, replace compressor.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
 Replace O-rings of low-pressure flexible hose and high-pressure flexible hose with new ones, and
apply compressor oil when installing.
 When recharging refrigerant, check for leaks. Refer to HA-22, "
Checking of Refrigerant Leaks".
Removal and Installation of Compressor - K9KINFOID:0000000001523297
K9K
REMOVAL
1. Use the recovery/recycling equipment to evacuate the refrigerant. Refer to HA-29, "HFC-134a (R-134a)
Service Procedure".
2. Remove the engine cover.
3. Remove the front grille. Refer to EXT-19, "
Removal and Installation". Clutch disc to pulley clearance : 0.3 - 0.6 mm (0.012 - 0.024 in)
RHA087E
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COMPRESSOR
HA-37
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 When recharging refrigerant, check for leaks. Refer to HA-22, "Checking of Refrigerant Leaks".

HA-38
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LOW-PRESSURE FLEXIBLE HOSE
LOW-PRESSURE FLEXIBLE HOSE
Removal and Installation of Low-Pressure Flexible Hose - MR18DE, HR16DE
INFOID:0000000001404150
REMOVAL
1. Use the recovery/recycling equipment to evacuate the refrigerant. Refer to HA-21, "HFC-134a (R-134a)
Service Procedure".
2. Remove engine cover.
3. Remove cowl top cover. Refer to EXT-20, "
Removal and Installation".
4. Remove lower dash insulator.
5. Remove ground wire harness (1).
6. Remove bolt (A) and nut (B) from low-pressure flexible hose (2)
bracket.
7. Remove bolt (A), and then disconnect low-pressure flexible
hose (1) and high-pressure pipe (2).
CAUTION:
Cap or wrap the joint of the pipe with suitable material such
as vinyl tape to avoid the entry of air.
8. Remove nut (A), and then remove low-pressure flexible hose (1)
from compressor (2).
CAUTION:
Cap or wrap the joint of the pipe with suitable material such
as vinyl tape to avoid the entry of air.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
 Replace O-rings for A/C piping with new ones, and apply compressor oil when installing.
 When recharging refrigerant, check for leaks. Refer to HA-22, "
Checking of Refrigerant Leaks".
Removal and Installation of Low-Pressure Flexible Hose - K9KINFOID:0000000001527624
REMOVAL
1. Use the recovery/recycling equipment to evacuate the refrigerant. Refer to HA-21, "HFC-134a (R-134a)
Service Procedure".
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LOW-PRESSURE FLEXIBLE HOSE
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2. Remove the engine cover.
3. Remove the front grille. Refer to EXT-19, "
Removal and Installation".
4. Reposition the RH air guide out of the way.
5. Remove the nut (A) to disconnect the low-pressure flexible hose
(1) from the compressor.
CAUTION:
Cap or wrap the joint of compressor, low-pressure flexible
hose and high-pressure flexible hose with suitable material
such as vinyl tape to avoid the entry of air.
6. Disconnect the low-pressure pipe from the low-pressure flexible hose.
CAUTION:
Cap or wrap the joint of the pipe with suitable material such as vinyl tape to avoid the entry of air.
7. Remove the low-pressure flexible hose.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
 Replace O-rings for A/C piping with new ones, and apply compressor oil when installing.
 When recharging refrigerant, check for leaks. Refer to HA-22, "
Checking of Refrigerant Leaks".
E1KIA0036GB