charging INFINITI FX35 2006 Owner's Manual

ATC-142
REFRIGERANT LINES
Revision: 2006 December 2006 FX35/FX45
9. Disconnect compressor (ECV) connector.
10. Remove mounting bolts from compressor, using power tools.
11. Remove compressor downward of the vehicle.
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:

Replace O-rings of low-pressure flexible hose, high-pressure pipe and high-pressure flexible hose
with new ones, and then apply compressor oil to it when installing it.

When recharging refrigerant, check for leaks.
Removal and Installation of Compressor ClutchNJS000F3
REMOVAL
Overhaul
1. When removing center bolt, hold clutch disc with a clutch disc wrench (SST).
2. Remove clutch disc using a clutch disc puller (SST).
RJIA2061E
RJIA2060E
RHA136EB
RHA399F

REFRIGERANT LINES ATC-147
C
D E
F
G H
I
K L
M A
B
AT C
Revision: 2006 December 2006 FX35/FX45
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:

Replace O-rings of A/C piping with new ones, and then apply compressor oil to it when installing
it.

Female-side piping connection is thin and easy to deform. slowly insert the male-side piping
straight in axial direction.

Insert piping securely until a click is heard.

After piping connection is completed, pull male-side piping by hand to make sure that connection
does not come loose.

When recharging refrigerant, check for leaks.
Removal and Installation of High-pressure Flexible HoseNJS000F5
REMOVAL
1. Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.
2. Remove air cleaner case and air duct. Refer to EM-17, "
AIR CLEANER AND AIR DUCT" (VQ35DE) or
EM-177, "
AIR CLEANER AND AIR DUCT" (VK45DE).
3. Remove high-pressure flexible hose bracket mounting bolt.
4. Disconnect one-touch joint between high-pressure flexible hose and condenser.
a. Set a disconnector (SST: 9253089912) on A/C piping.
b. Slide a disconnector upward until it clicks.
c. Slide A/C piping upward and disconnect it.
CAUTION:
Cap or wrap the joint of the pipe with suitable material such
as vinyl tape to avoid the entry of air.
5. Remove mounting nut from high-pressure flexible hose (com- pressor side), and then remove high-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. Low-pressure flexible hose bracket mounting bolt
: 5.5 N·m (0.56 kg-m, 49 in-lb)
RJIA2065E
RJIA2066E
SJIA0943E

ATC-148
REFRIGERANT LINES
Revision: 2006 December 2006 FX35/FX45
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:

Replace O-rings of high-pressure flexible hose with new ones, and then apply compressor oil to it
when installing it.

Female-side piping connection is thin and easy to deform. slowly insert the male-side piping
straight in axial direction.

Insert piping securely until a click is heard.

After piping connection is completed, pull male-side piping by hand to make sure that connection
does not come loose.

When recharging refrigerant, check for leaks.
Removal and Installation of Low-pressure Pipe 1 (Engine Compartment)NJS000F6
REMOVAL
1. Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.
2. Remove cowl top cover. Refer to EI-23, "
COWL TOP" .
3. Remove low-pressure pipe 1 bracket and low-pressure flexible hose bracket mounting bolts.
4. Disconnect one-touch joints.
a. Set a disconnector (SST: 9253089916) on A/C piping.
b. Slide a disconnector toward vehicle front until it clicks.
c. Slide A/C piping toward vehicle front and disconnect it.
RJIA2067E
High-pressure flexible hose bracket mounting bolt
: 5.5 N·m (0.56 kg-m, 49 in-lb)
RJIA2068E
RJIA2069E

REFRIGERANT LINES ATC-149
C
D E
F
G H
I
K L
M A
B
AT C
Revision: 2006 December 2006 FX35/FX45
5. Remove low-pressure pipe 1. 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 basically the reverse order of removal.
CAUTION:

Replace O-rings of low-pressure pipe 1 with new ones, and then apply compressor oil to it when
installing it.

Female-side piping connection is thin and easy to deform. slowly insert the male-side piping
straight in axial direction.

Insert piping securely until a click is heard.

After piping connection is completed, pull male-side piping by hand to make sure that connection
does not come loose.

When recharging refrigerant, check for leaks.
Removal and Installation of High-pressure Pipe 1 and 2 (Engine Compartment)NJS000F7
REMOVAL
1. Remove low-pressure pipe 1. Refer to ATC-148, "Removal and Installation of Low-pressure Pipe 1
(Engine Compartment)" .
2. Remove high-pressure flexible hose and low-pressure flexible hose. Refer to ATC-147, "
Removal and
Installation of High-pressure Flexible Hose" and ATC-146, "Removal and Installation of Low-pressure
Flexible Hose" .
3. Remove high-pressure pipe 1 and 2 from clips.
RJIA2037E
Low-pressure pipe 1 bracket and low-pressure flexible hose bracket mounting bolts
: 5.5 N·m (0.56 kg-m, 49 in-lb)
RJIA2070E

ATC-150
REFRIGERANT LINES
Revision: 2006 December 2006 FX35/FX45
4. Disconnect one-touch joint between condenser and high-pres- sure pipe 1.
a. Set a disconnector (SST: 9253089908) on A/C piping.
b. Slide a disconnector upward until it clicks.
c. Slide A/C piping upward and disconnect it.
CAUTION:
Cap or wrap the joint of the pipe with suitable material such
as vinyl tape to avoid the entry of air.
5. Disconnect one-touch joint between high-pressure pipe 1 and 2.
a. Set a disconnector (SST: 9253089908) on A/C piping.
b. Slide a disconnector toward vehicle rear until it clicks.
c. Slide A/C piping toward vehicle rear and disconnect it.
CAUTION:
Cap or wrap the joint of the pipe with suitable material such
as vinyl tape to avoid the entry of air.
6. Remove high-pressure pipe 1.
7. Disconnect one-touch joint between high-pressure pipe 2 and 3.
a. Set a disconnector (SST: 9253089908) on A/C piping.
b. Slide a disconnector toward vehicle front until it clicks.
c. Slide A/C piping toward vehicle front and disconnect it.
8. Remove 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.
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:

Replace O-rings of high-pressure pipe with new ones, and then apply compressor oil to it when
installing it.

Female-side piping connection is thin and easy to deform. slowly insert the male-side piping
straight in axial direction.

Insert piping securely until a click is heard.

After piping connection is completed, pull male-side piping by hand to make sure that connection
does not come loose.

When recharging refrigerant, check for leaks.
Removal and Installation of Low-pressure Pipe 2 and High-pressure Pipe 3NJS000F8
REMOVAL
1. Set the temperature (passenger side) at 18 °C (60 °F), and then disconnect the battery cable from the neg-
ative terminal.
2. Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.
3. Remove cowl top cover. Refer to EI-23, "
COWL TOP" .
RJIA2071E
RJIA2072E
RJIA2073E

ATC-152
REFRIGERANT LINES
Revision: 2006 December 2006 FX35/FX45
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:

Replace O-rings of A/C piping with new ones, and then apply compressor oil to it when installing
it.

Female-side piping connection is thin and easy to deform. slowly insert the male-side piping
straight in axial direction.

Insert piping securely until a click is heard.

After piping connection is completed, pull male-side piping by hand to make sure that connection
does not come loose.

When recharging refrigerant, check for leaks.
Removal and Installation of Liquid TankNJS000F9
REMOVAL
1. Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.
2. Remove front grille. Refer to EI-22, "
FRONT GRILLE" .
3. Clean liquid tank and its surrounding area, and remove dirt and rust from liquid tank.
CAUTION:
Be sure to clean carefully.
4. Remove liquid tank and power steering oil cooler mounting bolts.
5. Lift liquid tank bracket upward. Remove liquid tank bracket from protruding part of condenser.
6. Slide liquid tank upward, and then remove liquid tank. Low-pressure pipe 1 bracket and low-pressure flexible hose bracket mounting bolts
: 5.5 N·m (0.56 kg-m, 49 in-lb)
SJIA1644E
RJIA0672E

REFRIGERANT LINES ATC-153
C
D E
F
G H
I
K L
M A
B
AT C
Revision: 2006 December 2006 FX35/FX45
INSTALLATION
Install liquid tank, and then install liquid tank bracket on condenser.
CAUTION:

Make sure liquid tank bracket is securely installed at protru-
sion of condenser. (Make sure liquid tank bracket does not
move to a position below center of liquid tank.)

Replace O-rings of A/C piping with new ones, and then
apply compressor oil to it when installing it.

When recharging refrigerant, check for leaks.
Removal and Installation of CondenserNJS000FA
REMOVAL
1. Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.
2. Remove cooling fan. Refer to CO-49, "
COOLING FAN" (VK45DE).
3. Remove radiator cooling fan assembly. Refer to CO-14, "
RADIATOR" (VQ35DE).
4. Remove radiator shroud. Refer to CO-41, "
RADIATOR" (VK45DE).
5. Remove washer tank mounting bolt.
6. Remove high-pressure flexible hose bracket mounting bolt.
7. Disconnect high-pressure flexible hose and high-pressure pipe 1 from condenser.
a. Set a disconnector [condenser outlet (SST: 9253089908), con- denser inlet (SST: 9253089912)] on A/C piping.
b. Slide a disconnector upward until it clicks.
c. Slide A/C piping upward and disconnect it.
CAUTION:
Cap or wrap the joint of the pipe with suitable material such
as vinyl tape to avoid the entry of air.
RJIA0673E
PBIC1534E
RJIA2065E
RJIA2066E

ATC-154
REFRIGERANT LINES
Revision: 2006 December 2006 FX35/FX45
8. Remove condenser mounting bolts.
9. Remove radiator upper mount, move radiator and condenser to the engine side.
10. Remove condenser. CAUTION:
Be careful not to damage the core surface of the condenser and the radiator.
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:

Replace O-rings of A/C piping with new ones, and then apply compressor oil to it when installing
it.

Female-side piping connection is thin and easy to deform. slowly insert the male-side piping
straight in axial direction.

Insert piping securely until a click is heard.

After piping connection is completed, pull male-side piping by hand to make sure that connection
does not come loose.

When recharging refrigerant, check for leaks.
Removal and Installation of Refrigerant Pressure SensorNJS000FB
REMOVAL
1. Remove condenser. Refer to ATC-153, "Removal and Installation of Condenser" .
2. Remove refrigerant pressure sensor from condenser. CAUTION:
When working, be careful not to damage the condenser.
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:
Apply compressor oil to O-ring of refrigerant pressure sensor when installing it.
Removal and Installation of EvaporatorNJS000FC
REMOVAL
1. Remove low-pressure pipe 2 and high-pressure pipe 3. Refer to ATC-150, "Removal and Installation of
Low-pressure Pipe 2 and High-pressure Pipe 3" .
SJIA1570E
High- pressure flexible hose bracket mounting bolt
: 5.5 N·m (0.56 kg-m, 49 in-lb)
RJIA2076E

REFRIGERANT LINES ATC-155
C
D E
F
G H
I
K L
M A
B
AT C
Revision: 2006 December 2006 FX35/FX45
CAUTION:
Cap or wrap the joint of the pipe with suitable material such as vinyl tape to avoid the entry of air.
2. Slide evaporator, and then remove it from heater & cooling unit assembly.
3. Remove intake sensor from evaporator, and then remove evap- orator.
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:

Replace O-rings of A/C piping with new ones, and then apply compressor oil to it when installing
it.

Female-side piping connection is thin and easy to deform. slowly insert the male-side piping
straight in axial direction.

Insert piping securely until a click is heard.

After piping connection is completed, pull male-side piping by hand to make sure that connection
does not come loose.

O-rings are different from low-pressure pipe 1 (high-pressure pipe 2) and low-pressure pipe 2
(high-pressure pipe 3).

Mark the mounting position of intake sensor bracket prior to removal so that the reinstalled sen-
sor can be located in the same position.

When recharging refrigerant, check for leaks.
Removal and Installation of Expansion ValveNJS000FD
REMOVAL
1. Remove evaporator. Refer to ATC-154, "Removal and Installation of Evaporator" .
2. Remove mounting bolts, and then remove expansion valve. 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 basically the reverse order of removal.
CAUTION:

Replace O-rings of evaporator with new ones, and then apply compressor oil to it when installing
it.

O-rings are different from low-pressure pipe 1 (high-pressure pipe 2) and low-pressure pipe 2
(high-pressure pipe 3).

When recharging refrigerant, check for leaks.
RJIA0928E
Low-pressure pipe 1 bracket mounting bolt
: 5.5 N·m (0.56 kg-m, 49 in-lb)
RJIA1864E

ATC-156
REFRIGERANT LINES
Revision: 2006 December 2006 FX35/FX45
Checking for Refrigerant LeaksNJS000FE
Perform a visual inspection of all refrigeration parts, fittings, hoses and components for signs of A/C lubricant
leakage, damage and corrosion. A/C lubricant leakage may indicate an area of refrigerant leakage. Allow
extra inspection time in these areas when using either an electrical leak detector or fluorescent dye leak
detector (SST: J-42220).
If dye is observed, confirm the leak with an electrical leak detector. It is possible a prior leak was repaired and
not properly cleaned.
When searching for leaks, do not stop when one leak is found but continue to check for additional leaks at all
system components and connections.
When searching for refrigerant leaks using an electrical leak detector, move the probe along the suspected
leak area at 1 to 2 inches per second and no further than 1/4 inch from the component.
CAUTION:
Moving the electrical leak detector probe slower and closer to the suspected leak area will improve the
chances of finding a leak.
Checking System for Leaks Using the Fluorescent Leak DetectorNJS000FF
1. Check A/C system for leaks using the UV lamp and safety goggles (SST: 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 open-
ing indicates 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 (SST: J-43872) to prevent future misdiagnosis.
4. Perform a system performance check and verify the leak repair with an approved electrical 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 lubricants, 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 InjectionNJS000FG
(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 (3.52 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 (SST: J-41459).
3. Connect the injector tool to the A/C low-pressure side service valve.
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 (SST: J-41459) (refer to the manufacture’s
operating instructions).
6. With the engine still running, disconnect the injector tool from the service valve. 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.
8. Attach a blue label as necessary.