Nissan Juke (2016 year). Service Repair Manual — part 417
LUBRICANT
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LUBRICANT
Description
INFOID:0000000012197113
MAINTENANCE OF LUBRICANT LEVEL
The compressor lubricant is circulating in the system together with the refrigerant. It is necessary to fill com-
pressor with lubricant when replacing A/C system parts or when a large amount of refrigerant leakage is
detected. It is important to always maintain lubricant level within the specified level. Otherwise, the following
conditions may occur.
• Insufficient lubricant amount: Stuck compressor
• Excessive lubricant amount: Insufficient cooling (caused by insufficient heat exchange)
Inspection
INFOID:0000000012197114
If a compressor is malfunctioning (internal noise, insufficient cooling), check the compressor oil.
1.
COMPRESSOR OIL JUDGMENT
1. Remove the compressor. Refer to
HA-29, "COMPRESSOR : Removal and Installation"
2. Sample a compressor oil and judge on the figure.
Judgement result 1>>Replace compressor only.
Judgement result 2>>Replace compressor and liquid tank.
Perform Lubricant Return Operation
INFOID:0000000012197115
CAUTION:
If a large amount of refrigerant or lubricant leakage is detected, never perform lubricant return opera-
tion.
1. Start the engine and set to the following conditions.
• Engine speed: Idling to 1,200 rpm
• A/C switch: ON
• Fan (blower) speed: Maximum speed set
• Intake door position: Recirculation
• Temperature setting: Full cold
2. Perform lubricant return operation for approximately 10 minutes.
3. Stop the engine.
4. Lubricant return operation is complete.
Lubricant Adjusting Procedure for Components Replacement Except Compressor
INFOID:0000000012197116
Fill with lubricant for the amount that is calculated according to the following conditions.
Example: Lubricant amount to be added when replacing evaporator and liquid tank [m (US fl oz, Imp fl oz)] =
35 (1.2, 1.2) + 5 (0.2, 0.2) +
α
Name
: A/C system Oil Type R
JSIIA0927GB
Revision: November 2015
2016 JUKE
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LUBRICANT
Lubricant Adjusting Procedure for Compressor Replacement
INFOID:0000000012197117
1. Drain lubricant from removed compressor and measure lubricant amount.
1. Drain lubricant from high-pressure port (A) and low-pres-
sure port (B) while rotating magnet clutch.
2. Measure total amount of lubricant that is drained from
removed compressor.
2. Drain lubricant from a new compressor that is calculated accord-
ing to the following conditions.
CAUTION:
If lubricant amount that is drained from removed compressor is less than 60 m (2.0 US fl oz, 2.1
Imp fl oz), perform calculation by setting “D” as 40 m (1.4 US fl oz, 1.4 Imp fl oz).
Example: Lubricant amount to be drained from a new compressor when replacing compressor and liquid
tank [m (US fl oz, Imp fl oz)] [D = 60 (2.0, 2.1),
α
= 5 (0.2, 0.2)]
120 (4.1, 4.2)
−
[60 (2.0, 2.1) + 20 (0.7, 0.7) + 5 (0.2, 0.2) + 5 (0.2, 0.2)] = 30 (1.0, 1.0)
Conditions
Lubricant amount to be added to A/C system
m (US fl oz, Imp fl oz)
Replace evaporator
35 (1.2, 1.2)
Replace condenser
15 (0.5, 0.5)
Replace liquid tank
5 (0.2, 0.2)
Refrigerant leakage is detected
Large amount leakage
30 (1.0, 1.1)
Small amount leakage
—
Lubricant amount that is recycled together with refrigerant during recycle operation
α
JMIIA0940ZZ
Amount to be drained (A) [m (US fl oz, Imp fl oz)]
= F
−
(D + S + R +
α
)
F
: Lubricant amount that a new compressor
contains [120 (4.1, 4.2)]
D
: Lubricant amount that is drained from re-
moved compressor
S
: Lubricant amount that remains inside of re-
moved compressor [20 (0.7, 0.7)]
R
: Lubricant amount to be added according to
components that are removed except com-
pressor
α
: Lubricant amount that is recycled together
with refrigerant during recycle operation
Conditions
Lubricant amount to be added to A/C system
m (US fl oz, Imp fl oz)
Replace evaporator
35 (1.2, 1.2)
Replace condenser
15 (0.5, 0.5)
Replace liquid tank
5 (0.2, 0.2)
JPIIA1455GB
Revision: November 2015
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LUBRICANT
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3. Install compressor and check the operation.
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PERFORMANCE TEST
PERFORMANCE TEST
Inspection
INFOID:0000000012197118
INSPECTION PROCEDURE
1. Connect recovery/recycling/recharging equipment (for HFC-134a) or manifold gauge.
2. Start the engine, and set to the following condition.
Test condition
3. Maintain test condition until A/C system becomes stable. (Approximately 10 minutes)
4. Check that test results of “recirculating-to-discharge air temperature” and “ambient air temperature-to-
operating pressure” are within the specified value.
5. When test results are within the specified value, inspection is complete.
If any of test result is out of the specified value, perform diagnosis by gauge pressure. Refer to
.
RECIRCULATING-TO-DISCHARGE AIR TEMPERATURE TABLE
AMBIENT AIR TEMPERATURE-TO-OPERATING PRESSURE TABLE
Surrounding condition
Indoors or in the shade (in a well-ventilated place)
Vehicle condition
Door
Closed
Door glass
Full open
Hood
Open
Engine speed
Idle speed
A/C condition
Temperature control switch or dial
Full cold
A/C switch
ON
Air outlet
VENT (ventilation)
Intake door position
Recirculation
Fan (blower) speed
Maximum speed set
Inside air (Recirculating air) at blower assembly inlet
Discharge air temperature from center ventilator
°
C (
°
F)
Relative humidity
%
Air temperature
°
C (
°
F)
50 – 60
25 (77)
8.8 – 11.3 (48 – 52)
30 (86)
13.2 – 16.2 (56 – 61)
35 (95)
18.5 – 22.0 (65 – 72)
60 – 70
25 (77)
11.3 – 13.8 (52 – 57)
30 (86)
16.2 – 19.3 (61 – 67)
35 (95)
22.0 – 25.5 (72 – 78)
Fresh air
High-pressure (Discharge side)
kPa (kg/cm
2
, psi)
Low-pressure (Suction side)
kPa (kg/cm
2
, psi)
Relative humidity
%
Air temperature
°
C (
°
F)
50 – 70
25 (77)
1,090 – 1,330
(11.1 – 13.6, 158.1 – 192.9)
200 – 240
(2.0 – 2.4, 29.0 – 34.8)
30 (86)
1,320 – 1,610
(13.5 – 16.4, 191.4 – 233.5)
260 – 320
(2.7 – 3.3, 37.7 – 46.4)
35 (95)
1,510 – 1,850
(15.4 – 18.8, 219.0 – 268.3)
320 – 390
(3.3 – 4.0, 46.4 – 56.6)
40 (104)
1,820 – 2,230
(18.6 – 22.7, 263.9 – 323.4)
420 – 520
(4.3 – 5.3, 60.9 – 75.4)
Revision: November 2015
2016 JUKE
REFRIGERATION SYSTEM SYMPTOMS
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SYMPTOM DIAGNOSIS
REFRIGERATION SYSTEM SYMPTOMS
Trouble Diagnosis For Unusual Pressure
INFOID:0000000012197119
Diagnose using a manifold gauge whenever system’s high and/or low side pressure(s) is/are unusual. The
marker above the gauge scale in the following tables indicates the standard (usual) pressure range. Refer to
above table (Ambient air temperature-to-operating pressure table) since the standard (usual) pressure, how-
ever, differs from vehicle to vehicle.
Symptom Table
INFOID:0000000012197120
Gauge indication
Refrigerant cycle
Probable cause
Corrective action
Both high- and low-pressure sides
are too high.
The pressure returns to nor-
mal soon after sprinkling wa-
ter on condenser.
Overfilled refrigerant.
Collect all refrigerant, evacuate
refrigerant cycle again, and
then refill it with the specified
amount of refrigerant.
Air flow to condenser is insuf-
ficient.
Insufficient condenser cooling
performance.
• Poor fan rotation of radiator
and condenser.
• Improper installation of air
guide.
• Clogged or dirty condenser
fins.
• Repair or replace malfunc-
tioning parts.
• Clean and repair condenser
fins.
When compressor is stopped,
a high-pressure reading
quickly drops by approximate-
ly 196 kPa (2 kg/cm
2
, 28 psi).
It then gradually decreases.
Air mixed in refrigerant cycle.
Collect all refrigerant, evacuate
refrigerant cycle again, and
then refill it with the specified
amount of refrigerant.
• Low-pressure pipe is cooler
than the outlet of evapora-
tor.
• Low-pressure pipe is frost-
ed.
Expansion valve opened too
much (excessive flow of refrig-
erant).
Replace expansion valve.
High-pressure side is excessively
high and low-pressure side is too
low.
High-pressure pipe and upper
side of condenser become
hot, however, liquid tank does
not become so hot.
Clogged or crushed high-pres-
sure pipe located between
compressor and condenser.
Repair or replace the malfunc-
tioning parts.
High-pressure side is too low and
low-pressure side is too high.
• The readings of both sides
become equal soon after
compressor operation
stops.
• There is no temperature dif-
ference between high- and
low-pressure sides.
Malfunction in compressor sys-
tem (insufficient compressor
pressure operation).
• Damage or breakage of
valve.
• Malfunctioning gaskets.
Replace compressor.
AC359A
AC360A
AC356A
Revision: November 2015
2016 JUKE
HA-26
< SYMPTOM DIAGNOSIS >
REFRIGERATION SYSTEM SYMPTOMS
Both high- and low-pressure sides
are too low.
• The area around evapora-
tor outlet does not become
cold.
• The area around evapora-
tor inlet becomes frosted.
Clogged expansion valve.
• Breakage of temperature
sensor.
• Clogging by foreign material.
Eliminate foreign material from
expansion valve, or replace it.
• There is a temperature dif-
ference between the areas
around outlet and inlet
pipes of liquid tank.
• Liquid tank becomes frost-
ed.
Malfunction in inner liquid tank
(clogged strainer).
Replace liquid tank.
Evaporator becomes frosted.
Clogged or crushed low-pres-
sure pipe.
Repair or replace malfunction-
ing parts.
Malfunction in intake sensor
(AUTOMATIC AIR CONDI-
TIONING) or thermo control
amp. (MANUAL AIR CONDI-
TIONING).
• Check intake sensor system.
Refer to
. (Automatic air
conditioning)
• Check thermo control amp.
system. Refer to
(Manual air conditioning)
There is a small temperature
difference between the high
and low pressure pipes for re-
frigerant cycle.
• Shortage of refrigerant.
• Leakage of refrigerant.
• Check for leakage.
• Collect all refrigerant, evacu-
ate refrigerant cycle again,
and then refill it with the spec-
ified amount of refrigerant.
Low-pressure side sometimes be-
comes negative.
• Sometimes the area
around evaporator outlet
does not become cold.
• Sometimes the area
around evaporator inlet is
frosted.
• Icing caused by the mixing of
water in cooler cycle.
• Deteriorated dryer in liquid
tank.
• Collect all refrigerant.
• Evacuate refrigerant cycle
completely, and then refill it
with the specified amount of
refrigerant. At this time, al-
ways replace liquid tank.
Gauge indication
Refrigerant cycle
Probable cause
Corrective action
AC353A
AC354A
Revision: November 2015
2016 JUKE
NOISE
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NOISE
Symptom Table
INFOID:0000000012197121
Symptom
Noise source
Probable cause
Corrective action
Unusual noise from compressor
when A/C is ON.
Inside of compressor
Wear, breakage, or clogging of foreign
material in inner parts.
Check compressor oil. Re-
fer to
.
Magnet clutch
Contact of clutch disc with pulley.
Check clearance between
clutch disc and pulley. Refer
to
Compressor body
Loosened compressor mounting bolts.
Check bolts for tightness.
Refer to
Unusual noise from cooler piping.
Cooler piping (pipe and
flexible hose)
Improper installation of clip and brack-
et.
Check the installation condi-
tion of the cooler piping. Re-
fer to
Unusual noise from expansion
valve when A/C is ON.
Expansion valve
Shortage of refrigerant.
• Check for leakage.
• Collect all refrigerant,
evacuate refrigerant cycle
again, and then refill it
with the specified amount
of refrigerant.
Wear, breakage, or clogging of foreign
material in inner parts.
Eliminate foreign material
from expansion valve, or re-
place it.
Unusual noise from belt.
—
Loosened belt
Check belt tension. Refer to
(MR for
NISMO RS models) or
(MR ex-
cept for NISMO RS mod-
els).
Internal compressor parts get locked
Replace compressor.
Revision: November 2015
2016 JUKE
HA-28
< REMOVAL AND INSTALLATION >
COMPRESSOR
REMOVAL AND INSTALLATION
COMPRESSOR
Exploded View
INFOID:0000000012197122
REMOVAL
DISASSEMBLY
Type of bolt with flange
1.
Compressor
: N·m (kg-m, ft-lb)
JSIIA1870GB
JSIIA1806GB
1.
Compressor unit
2.
Field coil
3.
Snap ring
4.
Pulley assembly
5.
Snap ring
6.
Shim
7.
Clutch disc
: N·m (kg-m, ft-lb)
Revision: November 2015
2016 JUKE
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