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Nissan Pathfinder (2007 year). Manual - part 45

PRECAUTIONS

ATC-11

ATC

2007 Pathfinder

Precautions for Servicing Compressor

EJS004OD

●

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

ATC-22, "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

ATC-163, "Removal and Installation for Compressor Clutch"

Precautions for Service Equipment

EJS004OE

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.

Plug

O-ring

Torque wrench

Apply oil

Do not apply oil to thread

No good

Good

WJIA1994E

ATC-12

PRECAUTIONS

2007 Pathfinder

VACUUM PUMP

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
the vacuum pump is exposed to atmospheric pressure so the vac-
uum pump oil may migrate out of the pump into the service hose.
This is possible when the pump is switched off after evacuation (vac-
uuming) and hose is connected to it.
To prevent this migration, use a manual valve situated near the
hose-to-pump connection, as follows.

●

Usually vacuum pumps have a manual isolator valve as part of
the pump. Close this valve to isolate the service hose from the
pump.

●

For pumps without an isolator, use a hose equipped with a man-
ual shut-off valve near the pump end. Close the valve to isolate
the hose from the pump.

●

If the hose has an automatic shut off valve, disconnect the hose
from the pump: as long as the hose is connected, the valve is
open and lubricating oil may migrate.

Some one-way valves open when vacuum is applied and close
under a no vacuum condition. Such valves may restrict the pump's
ability to pull a deep vacuum and are not recommended.

MANIFOLD GAUGE SET

Be certain that the gauge face indicates HFC-134a (R-134a). Make
sure the gauge set has 1/2

″

-16 ACME threaded connections for ser-

vice hoses. Confirm the set has been used only with refrigerant
HFC-134a (R-134a) along with specified oil.

SERVICE HOSES

Be certain that the service hoses display the markings described
(colored hose with black stripe). All hoses must include positive shut-
off devices (either manual or automatic) near the end of the hoses
opposite the manifold gauge.

RHA270D

SHA533D

RHA272D

PRECAUTIONS

ATC-13

ATC

2007 Pathfinder

SERVICE COUPLERS

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

RHA273D

RHA274D

ATC-14

PREPARATION

2007 Pathfinder

PREPARATION

PFP:00002

Special Service Tools

EJS004OG

The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.

HFC-134a (R-134a) Service Tools and Equipment

EJS004OH

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-38873-A)
Pulley installer

Installing pulley

KV99233130
(J-29884)
Pulley puller

Removing pulley

LHA171

LHA172

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)

KV991J0130
(ACR2005-NI)
ACR A/C Service Center

Refrigerant Recovery and Recycling
and Recharging

S-NT196

S-NT197

WJIA0293E

PREPARATION

ATC-15

ATC

2007 Pathfinder

—

(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)

—

(J-42220)
Fluorescent dye leak detector

Power supply:

●

DC 12V (battery terminal)

For checking refrigerant leak when flu-
orescent dye is installed in A/C system.
Includes: UV lamp and UV safety gog-
gles

—

(J-41447)
HFC-134a (R-134a) Fluorescent
leak detection dye
(Box of 24, 1/4 ounce bottles)

Application: For HFC-134a (R-134a)
PAG oil
Container: 1/4 ounce (7.4cc) bottle
(Includes self-adhesive dye identifica-
tion labels for affixing to vehicle after
charging system with dye.)

—

(J-41459)
HFC-134a (R-134a) Refrigerant
dye injector
Use with J-41447, 1/4 ounce bottle

For injecting 1/4 ounce of fluorescent
leak detection dye into A/C system.

—

(J-43872)
Refrigerant dye cleaner

For cleaning dye spills.

Tool number
(Kent-Moore No.)
Tool name

Description

AHA281A

ZHA200H

SHA438F

SHA439F

SHA440F

SHA441F

ATC-16

PREPARATION

2007 Pathfinder

—

(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

Tool number
(Kent-Moore No.)
Tool name

Description

RJIA0196E

S-NT201

S-NT202

S-NT200

S-NT203

PREPARATION

ATC-17

ATC

2007 Pathfinder

Commercial Service Tools

EJS004OI

Tool name

Description

(J-41810-NI)
Refrigerant identifier equipment (R-
134a)

For checking refrigerant purity and
system contamination

Power tool

Loosening bolts and nuts

(J-44614)
Clutch disc holding tool

Clutch disc holding tool

RJIA0197E

PBIC0190E

WHA230

ATC-18

REFRIGERATION SYSTEM

2007 Pathfinder

REFRIGERATION SYSTEM

PFP:KA990

Components

EJS004OJ

FRONT REFRIGERATION SYSTEM

WJIA1260E

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