Nissan Juke (2012 year). Service Repair Manual — part 137

REFRIGERANT

HA-17

< BASIC INSPECTION >

Never look directly into UV lamp light source.
NOTE:
• For continuous operating time of UV lamp, follow the manufacturer operating instructions.
• Illuminate piping joints from different angles using UV lamp and check that there is no leakage.
• Use a mirror in area that is difficult to see to check refrigerant leakage.
• Refrigerant leakage from evaporator can be detected by soaking cotton swab or a similar material with

drain hose water and illuminating it using UV lamp.

• Dust, dirt, and packing materials adhesive used for condenser, evaporator, and other locations may flu-

oresce. Be careful not to misidentify leakage.

Repair or replace parts where refrigerant leakage occurs and wipe off fluorescent leak detection dye.
NOTE:
Completely wipe off fluorescent leak detection dye from gaps between parts, screw threads, and others
using a cotton swab or similar materials.

Use a UV lamp to check that no fluorescent leak detection dye remains after finishing work.

WARNING:

Never look directly into UV lamp light source.
NOTE:
• For continuous operating time of UV lamp, follow the manufacturer operating instructions.
• Dust, dirt, and packing materials adhesive used for condenser, evaporator, and other locations may flu-

oresce. Be careful not to misidentify leakage.

CHECK REFRIGERANT LEAKAGE USING ELECTRICAL LEAK DETECTOR

WARNING:

Never check refrigerant leakage while the engine is running.

CAUTION:

Be careful of the following items so that inaccurate checks or misidentifications are avoided.
• Never allow refrigerant vapor, shop chemical vapors, cigarette smoke, or others around the vehicle.
• Always check refrigerant leakage in a low air flow environment so that refrigerant may not disperse

when leakage occurs.

Stop the engine.

Connect recovery/recycling/recharging equipment or manifold gauge set to A/C service valve.

Check that A/C refrigerant pressure is 345 kPa (3.52 kg/cm

, 50 psi) or more when temperature is 16

(61

F) or more. When pressure is lower than the specified value, recycle refrigerant completely and fill

refrigerant to the specified level.
NOTE:
Leakages may not be detected if A/C refrigerant pressure is 345 kPa (3.52 kg/cm

, 50 psi) or less when

temperature is less than 16

C (61

F).

Clean area where refrigerant leakage check is performed, and check refrigerant leakage along all sur-
faces of pipe connections and A/C system components using electrical leak detector probe.

CAUTION:

• Continue checking when a leakage is found. Always continue and complete checking along all

pipe connections and A/C system components for additional leakage.

• When a leakage is detected, clean leakage area using compressed air and check again.
• When checking leakage of cooling unit inside, always clean inside of drain hose so that the

probe surface may not be exposed to water or dirt.

NOTE:
• Always check leakage starting from high-pressure side and continue to low-pressure side.
• When checking leakage of cooling unit inside, operate blower fan motor for 15 minutes or more at the

maximum fan speed while the engine is stopped, and then insert electrical leak detector probe into drain
hose and hold for 10 minutes or more.

• When disconnecting shut-off valve that is connected to A/C service valve, always evacuate remaining

refrigerant so that misidentification can be avoided.

Repair or replace parts where refrigerant leakage is detected. (Leakage is detected but leakage area is
unknown. GO TO 6.)

Start the engine and set A/C control in the following conditions.
• A/C switch ON
• Air flow: VENT (ventilation)
• Intake door position: Recirculation

Revision: 2011 October

2012 JUKE

HA-18

< BASIC INSPECTION >

REFRIGERANT

• Temperature setting: Full cold
• Fan (blower) speed: Maximum speed set

Run the engine at approximately 1,500 rpm for 2 minutes or more.

Stop the engine. Check again for refrigerant leakage. GO TO 4.

WARNING:

Be careful not to get burned when the engine is hot.
NOTE:
• Start refrigerant leakage check immediately after the engine is

stopped.

• When refrigerant circulation is stopped, pressure on the low-

pressure side rises gradually, and after this, pressure on the
high-pressure side falls gradually.

• The higher the pressure is, the easier it is to find the refriger-

ant leakage.

Recycle Refrigerant

INFOID:0000000007580097

WARNING:

• Always use HFC-134a for A/C refrigerant. If CFC-12 is accidentally charged, compressor is damaged

due to insufficient lubrication.

• Always observe and follow precautions described on refrigerant container. Incorrect handling may

result in an explosion of refrigerant container, frostbite, or the loss of eyesight.

• Never breathe A/C refrigerant and lubricant vapor or mist. Exposure may irritate eyes, nose, or

throat.

• Never allow HFC-134a to be exposed to an open flame or others because it generates poisonous gas

when in contact with high temperature objects. Keep workshop well ventilated.

Perform lubricant return operation. Refer to

HA-20, "Perform Lubricant Return Operation"

. (If refrigerant or

lubricant leakage is detected in a large amount, omit this step, and then GO TO 2.)

CAUTION:

Never perform lubricant return operation if a large amount of refrigerant or lubricant leakage is
detected.

Check gauge pressure readings of recovery/recycling/recharging equipment. When remaining pressure
exists, recycle refrigerant from high-pressure hose and low-pressure hose.
NOTE:
Follow manufacturer instructions for the handling or maintenance of the equipment. Never fill the equip-
ment with non-specified refrigerant.

Remove A/C service valve cap from the vehicle.

Connect recovery/recycling/recharging equipment to A/C service valve.

Operate recovery/recycling/recharging equipment, and recycle refrigerant from the vehicle.

Evacuate air for 10 minutes or more to remove any remaining refrigerant integrated to compressor lubri-
cant, etc.

Refrigerant recycle operation is complete.

Charge Refrigerant

INFOID:0000000007580098

WARNING:

• Always use HFC-134a for A/C refrigerant. If CFC-12 is accidentally charged, compressor is damaged

due to insufficient lubrication.

• Always observe and follow precautions described on refrigerant container. Incorrect handling may

result in an explosion of refrigerant container, frostbite, or the loss of eyesight.

• Never breathe A/C refrigerant and lubricant vapor or mist. Exposure my irritate eyes, nose, or throat.
• Never allow HFC-134a to be exposed to an open flame or others because it generates poisonous gas

when in contact with high temperature objects. Keep workshop well ventilated.

Connect recovery/recycling/recharging equipment to the A/C service valve.

SHA839E

Revision: 2011 October

2012 JUKE

REFRIGERANT

HA-19

< BASIC INSPECTION >

Operate recovery/recycling/recharging equipment, and evacuate air from A/C system for 25 minutes or
more.

CAUTION:

Evacuate air for 15 minutes or more if the parts are replaced.

Check the airtightness of A/C system for 25 minutes or more. If pressure rises more than the specified
level, charge A/C system with approximately 200 g (0.4 lb) refrigerant and check that there is no refriger-
ant leakage. Refer to

HA-16, "Leak Test"

CAUTION:

Check the airtightness for 15 minutes or more if the parts are replaced.

If parts other than compressor are replaced, fill compressor lubricant according to parts that are replaced.

Charge the specified amount of refrigerant to A/C system.

Check that A/C system operates normally.

Disconnect recovery/recycling/recharging equipment. (Collect the refrigerant from the high-pressure hose
and low-pressure hose of recovery/recycling/recharging equipment.)

Install A/C service valve cap.

Refrigerant charge is complete.

Revision: 2011 October

2012 JUKE

HA-20

< BASIC INSPECTION >

LUBRICANT

LUBRICANT

Description

INFOID:0000000007580099

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:0000000007580100

If a compressor is malfunctioning (internal noise, insufficient cooling), check the compressor oil.

COMPRESSOR OIL JUDGMENT

Remove the compressor. Refer to

HA-28, "COMPRESSOR : Removal and Installation"

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:0000000007580101

CAUTION:

If a large amount of refrigerant or lubricant leakage is detected, never perform lubricant return opera-
tion.

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

Perform lubricant return operation for approximately 10 minutes.

Stop the engine.

Lubricant return operation is complete.

Lubricant Adjusting Procedure for Components Replacement Except Compressor

INFOID:0000000007580102

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) +

Name

: A/C system Oil Type R

JSIIA0927GB

Revision: 2011 October

2012 JUKE

LUBRICANT

HA-21

< BASIC INSPECTION >

Lubricant Adjusting Procedure for Compressor Replacement

INFOID:0000000007580103

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.

Measure total amount of lubricant that is drained from
removed compressor.

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),

= 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

(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

JMIIA0940ZZ

Amount to be drained (A) [m (US fl oz, Imp fl oz)]
= F

−

(D + S + R +

)

: Lubricant amount that a new compressor
contains [120 (4.1, 4.2)]

: Lubricant amount that is drained from re-
moved compressor

: Lubricant amount that remains inside of re-
moved compressor [20 (0.7, 0.7)]

: Lubricant amount to be added according to
components that are removed except com-
pressor

: Lubricant amount that is recycled together
with refrigerant during recycle operation

Conditions

Lubricant amount to be added to A/C system

(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: 2011 October

2012 JUKE

HA-22

< BASIC INSPECTION >

LUBRICANT

Install compressor and check the operation.

Revision: 2011 October

2012 JUKE

PERFORMANCE TEST

HA-23

< BASIC INSPECTION >

PERFORMANCE TEST

Inspection

INFOID:0000000007580104

INSPECTION PROCEDURE

Connect recovery/recycling/recharging equipment (for HFC-134a) or manifold gauge.

Start the engine, and set to the following condition.

Test condition

Maintain test condition until A/C system becomes stable. (Approximately 10 minutes)

Check that test results of “recirculating-to-discharge air temperature” and “ambient air temperature-to-
operating pressure” are within the specified value.

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

HA-24,

"Symptom Table"

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

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 (

Relative humidity

Air temperature

C (

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

, psi)

Low-pressure (Suction side)

kPa (kg/cm

, psi)

Relative humidity

Air temperature

C (

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: 2011 October

2012 JUKE

HA-24

< SYMPTOM DIAGNOSIS >

REFRIGERATION SYSTEM SYMPTOMS

SYMPTOM DIAGNOSIS

REFRIGERATION SYSTEM SYMPTOMS

Trouble Diagnosis For Unusual Pressure

INFOID:0000000007580105

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:0000000007580106

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

, 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: 2011 October

2012 JUKE

REFRIGERATION SYSTEM SYMPTOMS

HA-25

< SYMPTOM DIAGNOSIS >

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

HAC-53, "Diagnosis

Procedure"

. (Automatic air

conditioning)

• Check thermo control amp.

system. Refer to

HAC-117,

"Diagnosis Procedure"

(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: 2011 October

2012 JUKE

HA-26

< SYMPTOM DIAGNOSIS >

NOISE

NOISE

Symptom Table

INFOID:0000000007580107

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

HA-20, "Inspection"

Magnet clutch

Contact of clutch disc with pulley.

Check clearance between
clutch disc and pulley. Refer
to

HA-29, "Inspection"

Compressor body

Loosened compressor mounting bolts.

Check bolts for tightness.
Refer to

HA-27, "Exploded

View"

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

HA-31, "Exploded

View"

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

EM-19, "Inspection"

Internal compressor parts get locked

Replace compressor.

Revision: 2011 October

2012 JUKE

COMPRESSOR

HA-27

< REMOVAL AND INSTALLATION >

REMOVAL AND INSTALLATION

COMPRESSOR

Exploded View

INFOID:0000000007580108

REMOVAL

DISASSEMBLY

COMPRESSOR

Compressor

: N·m (kg-m, ft-lb)

JMIIA1983GB

Compressor unit

Field coil

Snap ring

Pulley assembly

Snap ring

Shim

Clutch disc

: N·m (kg-m, ft-lb)

JMIIA0802GB

Revision: 2011 October

2012 JUKE

HA-28

< REMOVAL AND INSTALLATION >

COMPRESSOR

COMPRESSOR : Removal and Installation

INFOID:0000000007580109

CAUTION:

Perform lubricant return operation before each refrigeration system disassembly. However, if a large
amount of refrigerant or lubricant is detected, never perform lubricant return operation. Refer to

HA-

20, "Perform Lubricant Return Operation"

REMOVAL

Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant. Refer to

HA-18, "Recy-

cle Refrigerant"

Remove drive belt. Refer to

EM-18, "Removal and Installation"

Remove mounting bolts (A), and then disconnect low-pressure
flexible hose (1) and high-pressure flexible hose (2).

CAUTION:

Cap or wrap the joint of the A/C piping and compressor with
suitable material such as vinyl tape to avoid the entry of air.

Disconnect magnet clutch harness connector.

Remove mounting bolts. Pull out compressor in the direction
indicated by an arrow as shown in the figure to remove.

CAUTION:

Be careful not to contact with and damage surrounding
parts when removing compressor from the vehicle.

INSTALLATION

Note the following items, and then install in the reverse order of removal.

CAUTION:

• Replace O-rings with new ones. Then apply compressor oil to them when installing.
• Perform lubricant adjusting procedure before installing new compressor. Refer to

HA-21, "Lubricant

Adjusting Procedure for Compressor Replacement"

• Check for leakages when recharging refrigerant. Refer to

HA-16, "Leak Test"

• Check tension of the drive belt after installing compressor. Refer to

EM-19, "Inspection"

MAGNET CLUTCH

: Vehicle front

JMIIA0947ZZ

: Vehicle front

JMIIA0948ZZ

JMIIA1038ZZ

Revision: 2011 October

2012 JUKE

COMPRESSOR

HA-29

< REMOVAL AND INSTALLATION >

MAGNET CLUTCH : Removal and Installation of Compressor Clutch

INFOID:0000000007580110

REMOVAL

Overhaul

Fix clutch disc.

Remove center bolt, and then remove clutch disc.

Remove snap ring using external snap ring pliers.

Position center pulley puller on the end of the drive shaft, and remove pulley assembly using any commer-
cially available pulley puller.
To prevent pulley groove from being deformed, puller claws should be positioned into the edge of the pul-
ley assembly.

Disconnect harness connector from compressor unit.

Remove snap ring using external snap ring pliers, and then remove field coil.

INSTALLATION

Install field coil (1).
Be sure to align the coil’s pin (2) with the hole in the compres-
sor’s front head.

Install field coil harness clip.

Install pulley assembly (1) using pulley installer (SST: J-41260)
(A) and a hand press, and then install snap ring (2) using snap
ring pliers.

Install clutch disc on drive shaft together with original shim(s). Press clutch disc down by hand.

Tighten center bolt to the specified torque while fixing clutch disc not to rotate.
After tightening the bolt, check that the pulley rotates smoothly.

Break-in Operation

When replacing compressor clutch assembly, always perform the break-in operation by engaging and disen-
gaging the clutch approximately 30-times. Break-in operation increases the level of transmitted torque.

Inspection

INFOID:0000000007580111

CHECK DISC TO PULLEY CLEARANCE

JMIIA0575ZZ

JMIIA0576ZZ

Revision: 2011 October

2012 JUKE

HA-30

< REMOVAL AND INSTALLATION >

COMPRESSOR

Check the clearance (B) between pulley assembly (1) and clutch
disc (2) along the entire periphery with a feeler gauge (A).

CAUTION:

Replace compressor if the specified clearance is not obtained,
replace adjusting spacer and readjust.

Clearance

: Refer to

HA-47, "Compressor"

JPIIA1566ZZ

Revision: 2011 October

2012 JUKE

COOLER PIPE AND HOSE

HA-31

< REMOVAL AND INSTALLATION >

COOLER PIPE AND HOSE

Exploded View

INFOID:0000000007580112

HIGH-PRESSURE FLEXIBLE HOSE

HIGH-PRESSURE FLEXIBLE HOSE : Removal and Installation

INFOID:0000000007580113

CAUTION:

Perform lubricant return operation before each refrigeration system disassembly. However, if a large
amount of refrigerant or lubricant is detected, never perform lubricant return operation. Refer to

HA-

20, "Perform Lubricant Return Operation"

REMOVAL

Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant. Refer to

HA-18, "Recy-

cle Refrigerant"

Remove bumper fascia. Refer to

EXT-12, "Removal and Installation"

A/C unit assembly

O-ring

High-pressure pipe

O-ring

Low-pressure flexible hose

High-pressure flexible hose

O-ring

Condenser

Compressor

: Always replace after every disassembly.

: N·m (kg-m, in-lb)

: N·m (kg-m, ft-lb)

: Indicates that the part is connected at points with same symbol in actual vehicle.

JMIIA0942GB

Revision: 2011 October

2012 JUKE

HA-32

< REMOVAL AND INSTALLATION >

COOLER PIPE AND HOSE

Remove mounting bolt (A), and then disconnect high-pressure
flexible hose.

CAUTION:

Cap or wrap the joint of the A/C piping and condenser with
suitable material such as vinyl tape to avoid the entry of air.

Remove mounting bolt (A), and then disconnect high-pressure
flexible hose.

CAUTION:

Cap or wrap the joint of the A/C piping and compressor with
suitable material such as vinyl tape to avoid the entry of air.

Remove high-pressure flexible hose from the vehicle.

INSTALLATION

Note the following items, and then install in the reverse order of removal.

CAUTION:

• Replace O-rings with new ones. Then apply compressor oil to them when installing.
• Check for leakages when recharging refrigerant. Refer to

HA-16, "Leak Test"

LOW-PRESSURE FLEXIBLE HOSE

LOW-PRESSURE FLEXIBLE HOSE : Removal and Installation

INFOID:0000000007580114

CAUTION:

Perform lubricant return operation before each refrigeration system disassembly. However, if a large
amount of refrigerant or lubricant is detected, never perform lubricant return operation. Refer to

HA-

20, "Perform Lubricant Return Operation"

REMOVAL

Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant. Refer to

HA-18, "Recy-

cle Refrigerant"

Remove bumper fascia. Refer to

EXT-12, "Removal and Installation"

Remove cowl top and cowl top extension. Refer to

EXT-20, "Removal and Installation"

Remove mounting nut, and then move lower dash insulator to
secure work space.

: Vehicle front