Nissan Titan A60. Manual - part 571

PREPARATION

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< PREPARATION >

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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) 
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.)

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

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

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(J-43872)
Refrigerant dye cleaner

For cleaning dye spills.

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(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.

Tool number
(Kent-Moore No.)
Tool name

Description 

SHA439F

SHA440F

SHA441F

RJIA0196E

S-NT201

S-NT202

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PREPARATION

Commercial Service Tool

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(J-39699)
Refrigerant weight scale

For measuring of refrigerant
Fitting size-Thread size
• 1/2”-16 ACME

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(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 

S-NT200

S-NT203

Tool name

Description

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

For checking refrigerant purity and 
system contamination

Power tool

Loosening bolts and nuts

RJIA0197E

PBIC0190E

REFRIGERATION SYSTEM

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< SYSTEM DESCRIPTION >

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SYSTEM DESCRIPTION

REFRIGERATION SYSTEM

Refrigerant Cycle

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REFRIGERANT FLOW

The refrigerant flows in the standard pattern, that is, through the compressor, the condenser with liquid tank,

through the evaporator, and back to the compressor. The refrigerant evaporation through the evaporator coils

are controlled by externally equalized expansion valve, located inside the evaporator case.

Refrigerant System Protection

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REFRIGERANT PRESSURE SENSOR

The refrigerant system is protected against excessively high or low pressures by the refrigerant pressure sen-

sor, located on the condenser. If the system pressure rises above or falls below the specifications, the refriger-

ant pressure sensor detects the pressure inside the refrigerant line and sends a voltage signal to the ECM.

The ECM de-energizes the A/C relay to disengage the magnetic compressor clutch when pressure on the high

WJIA1347E

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< SYSTEM DESCRIPTION >

REFRIGERATION SYSTEM

pressure side detected by refrigerant pressure sensor is over about 2,746 kPa (28 kg/cm

2

, 398 psi), or below

about 120 kPa (1.22 kg/cm

2

, 17.4 psi).

PRESSURE RELIEF VALVE

The refrigerant system is also protected by a pressure relief valve, located in the rear head of the compressor.

When the pressure of refrigerant in the system increases to an abnormal level [more than 2,990 kPa (30.5 kg/
cm

2

, 433.6 psi)], the release port on the pressure relief valve automatically opens and releases refrigerant into

the atmosphere.