Nissan Cube. Instruction — part 528
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VENTILATION, HEATER & AIR CONDITIONER
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CONTENTS
HEATER & AIR CONDITIONING SYSTEM
BASIC INSPECTION . . . . . . . . .
DIAGNOSIS AND REPAIR WORKFLOW . . ..
Work Flow . . . . . . . . . . . . . . . .....
SYSTEM DESCRIPTION . . . . . . . ..
REFRIGERATION SYSTEM . . . . . . . ...
System Diagram . . . . . . . . . . . . . ....
System Description . . . . . . . . . . . . ...
Component Parts Location . . . . . . . . . ....
Component Description . . . . . . . . . . .....
SYMPTOM DIAGNOSIS . . . . . . . ...
REFRIGERATION SYSTEM SYMPTOMS . . ..
Trouble Diagnosis For Unusual Pressure . . . .....
Symptom Table . . . . . . . . . . . . . .....
NOISE . . . . . . . . . . . . . . . . .
Symptom Table . . . . . . . . . . . . . ...
PRECAUTION . . . . . . . . . . . ..
PRECAUTIONS . . . . . . . . . . . . ..
Precautions for Removing of Battery Terminal . ...
Precaution for Procedure without Cowl Top Cover
Precautions For Refrigerant System Service . . ..
PREPARATION . . . . . . . . . . ...
PREPARATION . . . . . . . . . . . . ..
Special Service Tool . . . . . . . . . . . ...
Commercial Service Tool . . . . . . . . . .
Sealant or/and Lubricant . . . . . . . . . . .
PERIODIC MAINTENANCE . . . . . . .
DESCRIPTION . . . . . . . . . . . . ...
Service Equipment . . . . . . . . . . . . ..
REFRIGERANT . . . . . . . . . . . . .
Description . . . . . . . . . . . . . . . ...
Leak Test . . . . . . . . . . . . . . . . .
Recycle Refrigerant . . . . . . . . . . . . .
Charge Refrigerant . . . . . . . . . . . . ..
LUBRICANT . . . . . . . . . . . . . ..
Description . . . . . . . . . . . . . . . ...
Inspection . . . . . . . . . . . . . . . .
Perform Lubricant Return Operation . . . . . ...
Lubricant Adjusting Procedure for Components
Replacement Except Compressor . . . . . . ...
Lubricant Adjusting Procedure for Compressor
Replacement . . . . . . . . . . . . . . ...
PERFORMANCE TEST . . . . . . . . .
Inspection . . . . . . . . . . . . . . . .
REMOVAL AND INSTALLATION . . . ...
COMPRESSOR . . . . . . . . . . . . .
Exploded View . . . . . . . . . . . . . . .
COMPRESSOR . . . . . . . . . . . . . . ..
COMPRESSOR : Removal and Installation . . .
MAGNET CLUTCH . . . . . . . . . . . . .
MAGNET CLUTCH : Removal and Installation . ...
Inspection . . . . . . . . . . . . . . . .
COOLER PIPE AND HOSE . . . . . . . ..
Exploded View . . . . . . . . . . . . . . .
HIGH-PRESSURE FLEXIBLE HOSE . . . . . .
HIGH-PRESSURE FLEXIBLE HOSE : Removal
and Installation . . . . . . . . . . . . . .
LOW-PRESSURE FLEXIBLE HOSE . . . . . . .
LOW-PRESSURE FLEXIBLE HOSE : Removal
and Installation . . . . . . . . . . . . . .
HA-2
HIGH-PRESSURE PIPE : Removal and Installa-
tion . . . . . . . . . . . . . . . . . . ..
CONDENSER . . . . . . . . . . . . .
Exploded View . . . . . . . . . . . . . ....
CONDENSER . . . . . . . . . . . . . . ....
CONDENSER : Removal and Installation . . . ..
LIQUID TANK . . . . . . . . . . . . . . ....
LIQUID TANK : Removal and Installation . . . ...
REFRIGERANT PRESSURE SENSOR . . . . ....
REFRIGERANT PRESSURE SENSOR : Remov-
al and Installation . . . . . . . . . . . . ....
A/C UNIT ASSEMBLY . . . . . . . . . ...
Exploded View (Automatic Air Conditioner) . . ....
Exploded View (Instruction Air Conditioner) . . . ....
A/C UNIT ASSEMBLY . . . . . . . . . . . ..
A/C UNIT ASSEMBLY : Removal and Installation ...
EVAPORATOR . . . . . . . . . . . . . . ..
EVAPORATOR : Removal and Installation . . . .
HEATER CORE . . . . . . . . . . . . . . .
HEATER CORE : Removal and Installation . . .
EXPANSION VALVE . . . . . . . . . . .
Exploded View . . . . . . . . . . . . . .
Removal and Installation . . . . . . . . . . .
SERVICE DATA AND SPECIFICATIONS
(SDS) . . . . . . . . . . . . . . ..
SERVICE DATA AND SPECIFICATIONS
(SDS) . . . . . . . . . . . . . . . . .
Compressor . . . . . . . . . . . . . . .
Lubricant . . . . . . . . . . . . . . . . .
Refrigerant . . . . . . . . . . . . . . . ..
Engine Idling Speed . . . . . . . . . . . .
DIAGNOSIS AND REPAIR WORKFLOW
HA-3
< BASIC INSPECTION >
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BASIC INSPECTION
DIAGNOSIS AND REPAIR WORKFLOW
Work Flow
INFOID:0000000009950322
OVERALL SEQUENCE
DETAILED FLOW
1.
INTERVIEW FOR MALFUNCTION
Interview the symptom to the customer.
NNIIA0143GB
HA-4
< BASIC INSPECTION >
DIAGNOSIS AND REPAIR WORKFLOW
>> GO TO 2.
2.
SYMPTOM CHECK
Check the symptom from the customer's information. Check that any symptom occurs other than the inter-
viewed symptom.
Insufficient cooling/heating>>GO TO 3.
Refrigerant leakage>>GO TO 6.
Noise >> GO TO 7.
3.
CONTROL SYSTEM DIAGNOSIS
Perform the system diagnosis for the A/C control system. Refer to
(AUTOMATIC AIR
(MANUAL AIR CONDITIONER).
Is A/C control system normal?
YES
>> GO TO 4.
NO
>> GO TO 8.
4.
PERFORMANCE TEST
Perform the performance test. Check the operation of each part. Refer to
>> GO TO 5.
5.
TROUBLE DIAGNOSIS FOR UNUSUAL PRESSURE
Diagnose using a manifold gauge whenever system's high and/or low side pressure(s) is/are unusual. Specify
the malfunctioning part. Refer to
Low refrigerant charge>>GO TO 6.
Except above>>GO TO 8.
6.
CHECK REFRIGERANT FOR LEAKAGES
Check refrigerant for leakages. Specify the malfunctioning part. Refer to
>> GO TO 8.
7.
TROUBLE DIAGNOSIS FOR NOISE
Perform trouble diagnosis for noise. Specify the malfunctioning part. Refer to
>> GO TO 8.
8.
MALFUNCTION PART REPAIR
Repair or replace the malfunctioning part.
>> GO TO 9.
9.
REPAIR CHECK (OPERATION CHECK)
Check the operation of each part.
Does it operate normally?
YES
>> INSPECTION END
NO
>> GO TO 2.
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