2009 INFINITI QX56 Factory Service Manual

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INFINITI QX56 2009 Factory Service Manual
PRECAUTIONSHA-9
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*: Always check with the Parts Department for the latest parts information.
WARNING:
Make sure all refrigerant is discharged into the r

PRECAUTIONSHA-9
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*: 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 loo sen the discharge side hose fitting and remove it.
CAUTION:
When replacing or cleaning refrigerant cycle components, observe the following.
When the compressor is removed, st ore 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 to rque wrench and a back-up wrench.
After disconnecting tubes, immediately plug all op enings 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 refriger ation system before charging the refrigerant.
Always replace used O-rings.
When connecting tube, apply oil to circle of the O-ri ngs 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 cl ick, 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 f ound, disconnect that line and replace the O-ring. Then tighten con-
nections of seal seat to the specified torque.
Connec-
tion type O-ring
size Part number* D mm (in) W mm (in)
New 8 92471 N8210 6.8 (0.268) 1.85 (0.0728)
Former 10 J2476 89956 9.25 (0.3642) 1.78 (0.0701) New 1292472 N8210 10.9 (0.429) 2.43 (0.0957)
Former 92475 71L00 11.0 (0.433) 2.4 (0.094) New 1692473 N8210 13.6 (0.535) 2.43 (0.0957)
Former 92475 72L00 14.3 (0.563) 2.3 (0.091) New 1992474 N8210 16.5 (0.650) 2.43 (0.0957)
Former 92477 N8200 17.12 (0.6740) 1.78 (0.0701) New 24 92195 AH300 21.8 (0.858) 2.4 (0.094)
SHA814E
Revision: December 20092009 QX56

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INFINITI QX56 2009 Factory Service Manual
HA-10
< PRECAUTION >
PRECAUTIONS
Precaution for Service of Compressor
INFOID:0000000003775293
Plug all openings to prevent moisture and foreign matter from entering.
When the compressor is remov

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INFINITI QX56 2009 Factory Service Manual
PRECAUTIONSHA-11
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The oil contained inside the vacuum pump is not compatible with the
specified oil for HFC-134a (R-134a) A/C systems. The vent side of

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INFINITI QX56 2009 Factory Service Manual
HA-12
< PRECAUTION >
PRECAUTIONS
Never attempt to connect HFC-134a (R-134a) service couplers to a
CFC-12 (R-12) A/C system. The HFC-134a (R-134a) couplers will
not properly connect to the CFC-12 (R-1

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INFINITI QX56 2009 Factory Service Manual
PREPARATIONHA-13
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PREPARATION
PREPARATION
Special Service ToolINFOID:0000000003775295
The actual shapes of Kent-Moore tools may differ fr om those of sp

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INFINITI QX56 2009 Factory Service Manual
HA-14
< PREPARATION >
PREPARATION
Tool number
(Kent-Moore No.)
Tool nameDescription
HFC-134a (R-134a)
(—)
Refrigerant Container color: Light blue
Container marking: HFC-134a (R-
134a)
Fitting size

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INFINITI QX56 2009 Factory Service Manual
PREPARATIONHA-15
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—
(J-41447)
HFC-134a (R-134a) Fluorescent
leak detection dye
(Box of 24, 1/4 ounce bottles) Application: For HFC-134a (R-134a)
PA

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INFINITI QX56 2009 Factory Service Manual
HA-16
< PREPARATION >
PREPARATION
Commercial Service Tool
INFOID:0000000003775297
—
(J-39699)
Refrigerant weight scale For measuring of refrigerant
Fitting size-Thread size
1/2”-16 ACME
—
(J-

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