Nissan Pathfinder (2012 year). Manual — part 404
PRECAUTIONS
HA-13
< PRECAUTION >
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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-12) system. If an improper
connection is attempted, discharging and contamination may occur.
REFRIGERANT WEIGHT SCALE
Verify that no refrigerant other than HFC134a (R-134a) and specified
oils have been used with the scale. If the scale controls refrigerant
flow electronically, the hose fitting must be 1/2”-16 ACME.
CHARGING CYLINDER
Using a charging cylinder is not recommended. Refrigerant may be vented into air from cylinder's top valve
when filling the cylinder with refrigerant. Also, the accuracy of the cylinder is generally less than that of an
electronic scale or of quality recycle/recharge equipment.
Shut-off valve rotation
A/C service valve
Clockwise
Open
Counterclockwise
Close
RHA273D
RHA274D
August 2012
2012 Pathfinder
HA-14
< PREPARATION >
PREPARATION
PREPARATION
PREPARATION
Special Service Tool
INFOID:0000000007356301
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
HFC-134a (R-134a) Service Tool and Equipment
INFOID:0000000007356302
Never mix HFC-134a (R-134a) refrigerant and/or its specified oil with CFC-12 (R-12) refrigerant and/or its oil.
Separate and non-interchangeable service equipment must be used for handling each type of refrigerant/oil.
Refrigerant container fittings, service hose fittings and service equipment fittings (equipment which handles
refrigerant and/or oil) are different between CFC-12 (R-12) and HFC-134a (R-134a). This is to avoid mixed
use of the refrigerants/oil.
Adapters that convert one size fitting to another must never be used refrigerant/oil contamination will occur
and compressor failure will result.
Tool number
(Kent-Moore No.)
Tool name
Description
—
(J-41425-NIS)
Aluminum tube repair kit
Repairing leaks in A/C tubes
—
(J-44614)
Clutch disc holding tool
Clutch disc holding tool
—
(J-38873-A)
Drive plate installer
Installing pulley and drive plate
ALIIA0390ZZ
WHA230
WJIA0367E
August 2012
2012 Pathfinder
PREPARATION
HA-15
< PREPARATION >
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Tool number
(Kent-Moore No.)
Tool name
Description
—
( — )
HFC-134a (R-134a) Refrigerant
Container color: Light blue
Container marking: HFC-134a (R-
134a)
Fitting size: Thread size
• large container 1/2”-16 ACME
—
( — )
NISSAN A/C System Oil Type S
Type: Poly alkylene glycol oil (PAG),
type S
Application: HFC-134a (R-134a)
swash plate compressors (NISSAN
only)
Lubricity: 40 m (1.4 US fl oz, 1.4 Imp
fl oz)
—
(J-48710)
NISSAN ACR2009 RRR Unit
Refrigerant Recovery and Recycling
and Recharging
—
(J-41995)
Electronic refrigerant leak detector
Power supply:
• DC 12V (battery terminal)
—
(J-43926)
Refrigerant dye leak detection kit
Kit includes:
(J-42220)
UV lamp and UV safety goggles
(J-41459)
Refrigerant dye injector
(J-41447)
Fluorescent leak detection dye
(box of 24, 1/4 ounce bottles)
(J-43872)
Refrigerant dye cleaner
Power supply:
• DC 12V (battery terminal)
S-NT196
S-NT197
WJIA0293E
AHA281A
ZHA200H
August 2012
2012 Pathfinder
HA-16
< PREPARATION >
PREPARATION
Commercial Service Tool
INFOID:0000000007356303
—
(J-39183-C)
Manifold gauge set (with hoses
and couplers)
Identification:
• The gauge face indicates R-134a.
Fitting size-Thread size
• 1/2”-16 ACME
Service hoses:
• High side hose
(J-39500-72B)
• Low side hose
(J-39500-72R)
• Utility hose
(J-39500-72Y)
Hose color:
• Low side hose: Blue with black stripe
• High side hose: Red with black stripe
• Utility hose: Yellow with black stripe
or green with black stripe
Hose fitting to gauge:
• 1/2”-16 ACME
Service couplers
• High side coupler
(J-39500-20A)
• Low side coupler
(J-39500-24A)
Hose fitting to service hose:
• M14 x 1.5 fitting is optional or perma-
nently attached.
—
(J-39699)
Refrigerant weight scale
For measuring of refrigerant
Fitting size-Thread size
• 1/2”-16 ACME
—
(J-39649)
Vacuum pump
(Including the isolator valve)
Capacity:
• Air displacement: 4 CFM
• Micron rating: 20 microns
• Oil capacity: 482 g (17 oz)
Fitting size-Thread size
• 1/2”-16 ACME
—
(J-46534)
Trim tool set
For removing trim
Tool number
(Kent-Moore No.)
Tool name
Description
RJIA0196E
S-NT201
S-NT202
S-NT200
S-NT203
AWJIA0483ZZ
August 2012
2012 Pathfinder
PREPARATION
HA-17
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Tool name
Description
(J-41810-NI)
Refrigerant identifier equipment (R-
134a)
For checking refrigerant purity and
system contamination
Power tool
Loosening nuts, screws and bolts
RJIA0197E
PIIB1407E
August 2012
2012 Pathfinder
HA-18
< SYSTEM DESCRIPTION >
REFRIGERATION SYSTEM
SYSTEM DESCRIPTION
REFRIGERATION SYSTEM
Component
INFOID:0000000007356304
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.
FRONT REFRIGERATION SYSTEM
August 2012
2012 Pathfinder
REFRIGERATION SYSTEM
HA-19
< SYSTEM DESCRIPTION >
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Front A/C Compressor and Condenser - VK56DE
AWIIA1537GB
1.
High-pressure service valve
2.
Clip
3.
Front high-pressure A/C pipe
4.
Refrigerant pressure sensor
5.
Condenser and liquid tank assembly 6.
Compressor shaft seal
7.
Front high-pressure flexible A/C hose
8.
Front low-pressure flexible A/C hose 9.
Low-pressure service valve
10. Front low-pressure A/C pipe
11. Front expansion valve
12. Front A/C drain hose
Vehicle front
August 2012
2012 Pathfinder
HA-20
< SYSTEM DESCRIPTION >
REFRIGERATION SYSTEM
Front A/C Compressor and Condenser - VQ40DE
REAR REFRIGERATION SYSTEM
AWIIA1538GB
1.
High-pressure service valve
2.
Clip
3.
Front high-pressure A/C pipe
4.
Refrigerant pressure sensor
5.
Condenser and liquid tank assembly 6.
Compressor shaft seal
7.
Front high-pressure flexible A/C hose
8.
Front low-pressure flexible A/C hose 9.
Low-pressure service valve
10. Front low-pressure A/C pipe
11. Front expansion valve
12. Front A/C drain hose
Vehicle front
August 2012
2012 Pathfinder
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