Nissan Almera Tino V10. Manual - part 202

ATC-4

PRECAUTIONS

PFP:00001

Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”

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The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. Information necessary to service the system safely is included in the SRS and SB section of
this Service Manual.

WARNING:

●

To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.

●

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.

●

Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.

Precautions for Working with HFC-134a (R-134a)

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WARNING:

●

Use only specified lubricant for the HFC-134a (R-134a) A/C system and HFC-134a (R-134a) compo-
nents. If lubricant other than that specified is used, compressor malfunction is likely to occur.

●

The specified HFC-134a (R-134a) lubricant rapidly absorbs moisture from the atmosphere. The fol-
lowing handling precautions must be observed:

–

When removing refrigerant components from a vehicle, immediately cap (seal) the component to
minimize the entry of moisture from the atmosphere.

–

When installing refrigerant components to a vehicle, do not remove the caps (unseal) until just
before connecting the components. Connect all refrigerant loop components as quickly as possi-
ble to minimize the entry of moisture into system.

–

Only use the specified lubricant from a sealed container. Immediately reseal containers of lubri-
cant. Without proper sealing, lubricant will become moisture saturated and should not be used.

–

Avoid breathing A/C refrigerant and lubricant vapor or mist. Exposure may irritate eyes, nose and
throat. Use only approved recovery/recycling equipment to discharge HFC-134a (R-134a) refriger-
ant. If accidental system discharge occurs, ventilate work area before resuming service. Addi-
tional

health

and

safety

information

may

obtained

from

refrigerant and

lubricant

manufacturers.

–

Do not allow lubricant (Nissan A/C System Oil Type S) to come in contact with styrofoam parts.
Damage may result.

General Refrigerant Precautions

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WARNING:

●

Do not release refrigerant into the air. Use approved recovery/recycling equipment to capture the
refrigerant every time an air conditioning system is discharged.

●

Always wear eye and hand protection (goggles and gloves) when working with any refrigerant or
air conditioning system.

●

Do not store or heat refrigerant containers above 52

C (125

F).

●

Do not heat a refrigerant container with an open flame; if container warming is required, place the
bottom of the container in a warm pail of water.

●

Do not intentionally drop, puncture, or incinerate refrigerant containers.

●

Keep refrigerant away from open flames: poisonous gas will be produced if refrigerant burns.

●

Refrigerant will displace oxygen, therefore be certain to work in well ventilated areas to prevent
suffocation.

●

Do not pressure test or leak test HFC-134a (R-134a) service equipment and/or vehicle air condi-
tioning systems with compressed air during repair. Some mixtures of air and HFC-134a (R-134a)
have been shown to be combustible at elevated pressures. These mixtures, if ignited, may cause

PRECAUTIONS

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injury or property damage. Additional health and safety information may be obtained from refriger-
ant manufacturers.

Lubricant Precautions

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●

Use only specified lubricant for the HFC-134a (R-134a) A/C system and HFC-134a (R-134a) components.
If lubricant other than that specified is used, compressor malfunction is likely to occur.

●

The specified HFC-134a (R-134a) lubricant rapidly absorbs moisture from the atmosphere. The following
handling precautions must be observed:

–

When removing refrigerant components from a vehicle, immediately cap (seal) the component to minimize
the entry of moisture from the atmosphere.

–

When installing refrigerant components to a vehicle, do not remove the caps (unseal) until just before con-
necting the components. Connect all refrigerant loop components as quickly as possible to minimize the
entry of moisture into system.

–

Only use the specified lubricant from a sealed container. Immediately reseal containers of lubricant. With-
out proper sealing, lubricant will become moisture saturated and should not be used.

●

Avoid breathing A/C refrigerant and lubricant vapor or mist. Exposure may irritate eyes, nose and throat.
Use only approved recovery/recycling equipment to discharge HFC-134a (R-134a) refrigerant. If acciden-
tal system discharge occurs, ventilate work area before resuming service. Additional health and safety
information may be obtained from refrigerant and lubricant manufacturers.

●

Do not allow lubricant (Nissan A/C System Oil Type S) to come in contact with styrofoam parts. Damage
may result.

Precautions for Refrigerant Connection

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A new type refrigerant connection has been introduced to all refrigerant lines except the following location.

●

Expansion valve to evaporator

●

Dual-pressure switch (or refrigerant pressure sensor) to liquid tank

FEATURES OF NEW TYPE REFRIGERANT CONNECTION

●

The O-ring has been relocated. It has also been provided with a groove for proper installation. This elimi-
nates the chance of the O-ring being caught in, or damaged by, the mating part. The sealing direction of
the O-ring is now set vertically in relation to the contacting surface of the mating part to improve sealing
characteristics.

●

The reaction force of the O-ring will not occur in the direction that causes the joint to pull out, thereby facil-
itating piping connections.

SHA815E

ATC-6

PRECAUTIONS

O-RING AND REFRIGERANT CONNECTION

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.

O-Ring Part Numbers and Specifications

WARNING:

Make sure all refrigerant is discharged into the recycling equipment and the pressure in the system is
less than atmospheric pressure. Then gradually loosen the discharge side hose fitting and remove it.

CAUTION:

When replacing or cleaning refrigerant cycle components, observe the following.

RHA246I

Connection

type

Piping connection point

Part number

Qty.

Remarks

New

Low-pressure flexible hose to heater & cooling unit

92473 N8210

O-ring size: 16mm

High-pressure pipe to heater & cooling unit

92471 N8210

O-ring size: 8mm

Condenser to high-pressure flexible hose

92472 N8210

O-ring size: 12mm

Condenser to high-pressure pipe

92471 N8210

O-ring size: 8mm

Compressor to low-pressure flexible hose

92474 N8210

O-ring size: 19mm

Compressor to high-pressure pipe

92472 N8210

O-ring size: 12mm

Liquid tank to condenser pipe

Inlet

92471 N8210

O-ring size: 8mm

Outlet

Former

Dual-pressure switch (or refrigerant pressure sen-
sor)

J2476 89956

O-ring size: 10mm

Expansion valve to evaporator

Inlet

92475 71L00

O-ring size: 12mm

Outlet

92475 72L00

O-ring size: 16mm

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●

When the compressor is removed, store it in the same position as it is when mounted on the car.
Malfunction to do so will cause lubricant to enter the low pressure chamber.

●

When connecting tubes, always use a torque wrench and a back-up wrench.

●

After disconnecting tubes, immediately plug all openings 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
connection.

●

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 refrigeration system before charging the refrigerant.

●

Always replace used O-rings.

●

When connecting tube, apply lubricant to circle of the O-rings shown in illustration. Be careful not
to apply lubricant to threaded portion.

●

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 click, 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 found, disconnect that line and replace the O-ring. Then tighten con-
nections of seal seat to the specified torque.

Precautions for Servicing Compressor

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●

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 Lubricant Quantity in Compres-
sor” exactly. Refer to

ATC-20, "Maintenance of Lubricant Quantity in Compressor"

●

Keep friction surfaces between clutch and pulley clean. If the surface is contaminated, with lubri-
cant, wipe it off by using a clean waste cloth moistened with thinner.

●

After compressor service operation, turn the compressor shaft by hand more than five turns in
both directions. This will equally distribute lubricant inside the compressor. After the compressor
is installed, let the engine idle and operate the compressor for one hour.

●

After replacing the compressor magnet clutch, apply voltage to the new one and check for usual
operation.

Lubricant name:

Nissan A/C System Oil Type S

Part number:

KLH00-PAGS0

RHA861F

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