service NISSAN ALMERA 2001 Service Manual

HFC-134a (R-134a) Service Tools and
Equipment
=NJHA0120Never mix HFC-134a refrigerant and/or its specified lubricant with CFC-12 (R-12) refrigerant and/or its lubri-
cant.
Separate and non-interchangeable service equipment must be used for handling each type of refrigerant/
lubricant.
Refrigerant container fittings, service hose fittings and service equipment fittings (equipment which handles
refrigerant and/or lubricant) are different between CFC-12 (R-12) and HFC-134a (R-134a). This is to avoid
mixed use of the refrigerants/lubricant.
Adapters that convert one size fitting to another must never be used: refrigerant/lubricant contamination will
occur and compressor failure will result.
Tool number
Tool nameDescription
HFC-134a (R-134a)
refrigerant
NT196
Container color: Light blue
Container marking: HFC-134a (R-134a)
Fitting size: Thread size
+Large container 1/2²-16 ACME
KLH00-PAGR0
Nissan A/C System Oil
Type R
KLH00-PAGS0
Nissan A/C System Oil
Type S
NT197
Type: Poly alkylene glycol oil (PAG), type R
Application: HFC-134a (R-134a) vane rotary com-
pressors (Nissan only)
Type S
Application: HFC-134a (R-134a) swash plate com-
pressors (Nissan only)
Lubricity: 40 m!(1.4 Imp fl oz)
Recovery/Recycling
Recharging equipment
(ACR4)
NT195
Function: Refrigerant Recovery and Recycling and
Recharging
Electrical leak detector
NT198
Power supply:
+DC 12V (Cigarette lighter)
Manifold gauge set (with
hoses and couplers)
NT199
Identification:
+The gauge face indicates R-134a.
Fitting size: Thread size
+1/2²-16 ACME
PREPARATION
HFC-134a (R-134a) Service Tools and Equipment
HA-11

Tool number
Tool nameDescription
Service hoses
+High side hose
+Low side hose
+Utility hose
NT201
Hose color:
+Low hose: Blue with black stripe
+High hose: Red with black stripe
+Utility hose: Yellow with black stripe or green
with black stripe
Hose fitting to gauge:
+1/2²-16 ACME
Service couplers
+High side coupler
+Low side coupler
NT202
Hose fitting to service hose:
+M14 x 1.5 fitting is optional or permanently
attached.
Refrigerant weight scale
NT200
For measuring of refrigerant
Fitting size: Thread size
+1/2²-16 ACME
Vacuum pump
(Including the isolator
valve)
NT203
Capacity:
+Air displacement: 4 CFM
+Micron rating: 20 microns
+Oil capacity: 482 g (17 oz)
Fitting size: Thread size
+1/2²-16 ACME
PREPARATION
HFC-134a (R-134a) Service Tools and Equipment (Cont'd)
HA-12

HFC-134a (R-134a) Service ProcedureNJHA0159SETTING OF SERVICE TOOLS AND EQUIPMENTNJHA0159S01Discharging RefrigerantNJHA0159S0101WARNING:
Avoid breathing A/C refrigerant and lubricant vapor or mist. Exposure may irritate eyes, nose and
throat. Remove HFC-134a (R-134a) from A/C system using certified service equipment meeting require-
ments of HFC-134a (R-134a) recycling equipment or HFC-134a (R-134a) recovery equipment. If acci-
dental system discharge occurs, ventilate work area before resuming service. Additional health and
safety information may be obtained from refrigerant and lubricant manufacturers.
SHA539DE
Evacuating System and Charging RefrigerantNJHA0159S0102
SHA540DC
SERVICE PROCEDURE
HFC-134a (R-134a) Service Procedure
HA-78

SHA383F
*1: HA-80
*2: HA-93*3: HA-94 *4: HA-69
SERVICE PROCEDURE
HFC-134a (R-134a) Service Procedure (Cont'd)
HA-79

Maintenance of Lubricant Quantity in
Compressor
NJHA0160The lubricant in the compressor circulates through the system with
the refrigerant. Add lubricant to compressor when replacing any
component or after a large gas leakage occurred. It is important to
maintain the specified amount.
If lubricant quantity is not maintained properly, the following mal-
functions may result:
+Lack of lubricant: May lead to a seized compressor
+Excessive lubricant: Inadequate cooling (thermal exchange
interference)
LUBRICANTNJHA0160S01Name: Nissan A/C System Oil Type R for DKV-11G compres-
sor
Part number: KLH00-PAGR0
Name: Nissan A/C System Oil Type S for CSV613 compressor
Part number: KLH00-PAGS0
CHECKING AND ADJUSTINGNJHA0160S02Adjust the lubricant quantity according to the test group shown
below.
1 LUBRICANT RETURN OPERATION
Can lubricant return operation be performed?
+A/C system works properly.
+There is no evidence of a large amount of lubricant leakage.
YesorNo
Ye s©GO TO 2.
No©GO TO 3.
2 PERFORM LUBRICANT RETURN OPERATION, PROCEEDING AS FOLLOWS
1. Start engine, and set the following conditions:
+Test condition
Engine speed: Idling to 1,200 rpm
A/C or AUTO switch: ON
Blower speed: Max. position
Temp. control: Optional [Set so that intake air temperature is 25 to 30ÉC (77 to 86ÉF).]
2. Perform lubricant return operation for about 10 minutes.
3. Stop engine.
CAUTION:
If excessive lubricant leakage is noted, do not perform the lubricant return operation.
©GO TO 3.
3 CHECK COMPRESSOR
Should the compressor be replaced?
YesorNo
Ye s©GO TO HA-82.
No©GO TO 4.
SERVICE PROCEDURE
Maintenance of Lubricant Quantity in Compressor
HA-80

4 CHECK ANY PART
Is there any part to be replaced? (Evaporator, condenser, liquid tank or in case there is evidence of a large amount of
lubricant leakage.)
YesorNo
Ye s©GO TO HA-82.
No©Carry out the A/C performance test.
SERVICE PROCEDURE
Maintenance of Lubricant Quantity in Compressor (Cont'd)
HA-81

Lubricant Adjusting Procedure for Components
Replacement Except Compressor
=NJHA0160S0201After replacing any of the following major components, add the
correct amount of lubricant to the system.
Amount of lubricant to be added
Part replacedLubricant to be added to
system
Remarks
Amount of lubricant
m!(Imp fl oz)
Evaporator 75 (2.6) Ð
Condenser 75 (2.6) Ð
Liquid tank 5 (0.2)Add if compressor is not
replaced. *1
In case of refrigerant
leak30 (1.1) Large leak
Ð Small leak *2
*1: If compressor is replaced, addition of lubricant is included in the table.
*2: If refrigerant leak is small, no addition of lubricant is needed.
Lubricant Adjustment Procedure for Compressor
Replacement
NJHA0160S02021. Discharge refrigerant into the refrigerant recovery/recycling
equipment. Measure lubricant discharged into the recovery/
recycling equipment.
2. Drain the lubricant from the ªoldº (removed) compressor into a
graduated container and recover the amount of lubricant
drained.
3. Drain the lubricant from the ªnewº compressor into a separate,
clean container.
4. Measure an amount of new lubricant installed equal to amount
drained from ªoldº compressor. Add this lubricant to ªnewº com-
pressor through the suction port opening.
5. Measure an amount of new lubricant equal to the amount
recovered during discharging. Add this lubricant to ªnewº com-
pressor through the suction port opening.
6. If the liquid tank also needs to be replaced, add an additional
5m!(0.2 Imp fl oz) of lubricant at this time.
Do not add this 5 m!(0.2 Imp fl oz) of lubricant if only
replacing the compressor.
SERVICE PROCEDURE
Maintenance of Lubricant Quantity in Compressor (Cont'd)
HA-82

RHA065DH
Compressor
REMOVAL AND INSTALLATIONNJHA0161
RHA803H
SERVICE PROCEDURE
Maintenance of Lubricant Quantity in Compressor (Cont'd)
HA-83

RHA804H
Compressor Clutch Ð CSV613 (CALSONIC
make)
OVERHAULNJHA0211
RHA805H
SERVICE PROCEDURE
Compressor (Cont'd)
HA-84

RHA136E
REMOVALNJHA0212+When removing center bolt, hold clutch disc with clutch disc
wrench.
RHA399FA
RHA124FA
+Remove the clutch disc using the clutch disc puller.
Insert the holder's three pins into the holes in the clutch disc.
Rotate the holder clockwise to hook it onto the plate. Then,
tighten the center bolt to remove the clutch disc.
After removing the clutch disc, remove the shims from either
the drive shaft or the clutch disc.
RHA138E
+Remove the snap ring using external snap ring pliers.
RHA139E
+Pulley removal
Position the center pulley puller on the end of the drive shaft,
and remove the pulley assembly using any commercially avail-
able pulley puller.
To prevent the pulley groove from being deformed, the
puller claws should be positioned onto the edge of the
pulley assembly.
SERVICE PROCEDURE
Compressor Clutch Ð CSV613 (CALSONIC make) (Cont'd)
HA-85