2002 NISSAN TERRANO Service Repair Manual

Set the recovery/recycling/recharging
equipment.
Recovered lubrication oil
Refer toLUBRICATION
OIL Ð Checking and
Adjusting.Discharge refrigerant into recovery/
recycling/recharging equipment.
Repair or replace parts.
Evacuate the unwanted air in charging
hoses.
Evacuating (over 25 minutes).
Check air tightness.ERepair.
G
ECharging [approx. 200 g (7.05 oz)].
*-1
Preliminary refrigerant leak check.
Complete charging
[specified amount Ð 200 g (7.05 oz)].
*-1
Check for refrigerant leaks.
*-2
Check for A/C operation and
A/C cooling performance
Remove service couplers from A/C service
valves.
Recover refrigerant in charging hoses.
Note: *-1 Before charging refrigerant, ensure engine is off.
*-2 Before checking for leaks, start engine to activate air conditioning system then turn it off.
Service valve caps must be attached to valves (to prevent leak).
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SERVICE PROCEDURES
HFC-134a (R-134a) Service Procedure (Cont'd)
HA-16

Refrigerant Lines
TD ENGINE LHD MODELS
YHA448
SERVICE PROCEDURES
HA-17

TD ENGINE RHD MODELS
YHA449
SERVICE PROCEDURES
Refrigerant Lines (Cont'd)
HA-18

ZD ENGINE LHD MODELS
YHA457
SERVICE PROCEDURES
Refrigerant Lines (Cont'd)
HA-19

ZD ENGINE RHD MODELS
YHA458
SERVICE PROCEDURES
Refrigerant Lines (Cont'd)
HA-20

Compressor Mounting
Belt Tension
IRefer to MA section.
RHA980D
SERVICE PROCEDURES
HA-21

Lubrication Oil
Name: Nissan A/C System Oil Type R
Part number: KLH00-PAGR0
Maintenance of Oil Quantity in Compressor
The oil used to lubricate the compressor circulates through the
system with the refrigerant. Whenever any component of the sys-
tem is replaced or a large amount of gas leakage occurs, add oil
to the compressor to maintain the specified amount.
If oil quantity is not maintained properly, the following malfunctions
may result:
ILack of oil: May lead to a seized compressor
IExcessive oil: Inadequate cooling (thermal exchange impeded)
Checking and Adjusting
Adjust the oil quantity according to the flowchart shown below.
START
Can oil return operation be performed?
IA/C system works properly.
IThere is no evidence of a large amount
of oil leakage.
No
EYe s
Perform oil return operation, proceeding as follows:
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1. Start engine, and set the following conditions:
ITest 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 oil return operating for about 10 minutes.
3. Stop engine.
CAUTION:
If excessive oil leakage is noted, do not perform the oil return operation.
Should the compressor be replaced?
No Yes
qA(Go to next page.)
Is there any part to be replaced?
(Evaporator, condenser, liquid tank or in
case there is evidence of a large amount
of oil leakage.)
No
EYe s
After replacing any of the following major components of the system, be sure
to add the correct amount of oil to the system.
Amount of oil to be added
*1: If compressor is replaced, addition of oil is included in the flow chart.
*2: If refrigerant leak is small, no addition of oil is needed. ªRatioº in this table
indicates the ratio of added oil to the overall amount of oil needed in the
system.
Carry out the A/C performance test.F
Part replacedOil to be added to system
Remarks
Amount of oil 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
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LUBRICATION OIL Ð Checking and Adjusting
HA-22

qA
1. Discharge refrigerant into the refrigerant recovery/recycling equipment. Measure oil discharged into the recovery/recycling
equipment.
2. Drain the oil from the ªoldº (removed) compressor into a graduated container, and record the amount of oil drained.
3. Drain the oil from the ªnewº compressor into a separate, clean container.
4. Measure an amount of the new oil equivalent to that drained from the ªoldº compressor, and add this oil to the ªnewº com-
pressor through the drain plug or suction port opening.
5. Measure an amount of the ªnewº oil equivalent to that recovered during discharging, and add this oil to the ªnewº compressor
through the drain plug or suction port opening.
6. If the liquid tank also needs to be replaced, add an additional 5 m(0.2 Imp fl oz) of oil at this time.
Do not add this 5 m(0.2 Imp fl oz) of oil if only replacing the compressor.
SHA563D
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LUBRICATION OIL Ð Checking and Adjusting
Checking and Adjusting (Cont'd)
HA-23