ac compressor MITSUBISHI LANCER 2005 Service Manual

COMPRESSOR ASSEMBLY AND TENSION PULLEY
HEATER, AIR CONDITIONER AND VENTILATION55-93
INSTALLATION SERVICE POINT
>>A<< A/C COMPRESSOR
INSTALLATION
If a new compressor is installed, first adjust the
amount of oil according to the procedures described
below, and then install the compressor.
1. Measure the amount (X mL) of oil within the
removed compressor.
2. Drain (from the new compressor) the amount of
oil calculated according to the following formula,
and then install the new compressor.
New compressor oil amount = 140mL <1300,
1600>, 120 mL <2000>
140 mL−X mL = Y mL <1300, 1600>
120 mL−X mL = Y mL <2000>
NOTE: Y mL indicates the amount of oil in the
refrigerant line, the condenser, the evaporator, etc.
NOTE: When replacing the following parts at the
same times as the compressor, subtract the rated oil
amount of the each part from Y mL and discharge
from the new compressor.
Quantity:
•Evaporator: 60 mL
•Condenser: 15 mL
•Suction hose: 10 mL
•Receiver: 10 mL
INSPECTIONM1552014300949
COMPRESSOR MAGNETIC CLUTCH
OPERATION CHECK
Connect the compressor connector terminal to the
battery positive (+) terminal and earth the battery’s
negative (−) terminal to the compressor unit. At that
time, the magnetic clutch should make a definite
operating sound.
AC005671
Magnetic clutch connector
AC

COMPRESSOR ASSEMBLY AND TENSION PULLEY
HEATER, AIR CONDITIONER AND VENTILATION55-94
DISASSEMBLY AND REASSEMBLYM1552004600660
DISASSEMBLY SERVICE POINT
<> SELF-LOCKING NUT REMOVAL
Use the special tools to remove the self-locking nut.
•Special spanner (MB991367)
•Pin (MB991386)
REASSEMBLY SERVICE POINTS
>>A<< FIELD CORE ATTACHMENT
Line up the pin hole on the compressor unit with the
field core projection and attach.
AC100630
N
N
16 ± 1 N·m
10
46789
512
AB
3
11
Cooling temperature switch
disassembly steps
1. Snap ring
2. Refrigerant temperature switch
3. O ring
Magnetic clutch disassembly
>>D<<•Air gap adjustment
<> >>C<<4. Self-locking nut5. Armature
>>B<<6. Snap ring
7. Rotor
8. Snap ring
>>A<<9. Field core
10. Shim
11. A/C compressorMagnetic clutch disassembly
AC100633AB
MB991386
MB991367
AC100634AB
Field core projection
Compressor
unit pin hole

COMPRESSOR ASSEMBLY AND TENSION PULLEY
HEATER, AIR CONDITIONER AND VENTILATION55-95
>>B<< SNAP RING INSTALLATION
Using snap ring pliers, fit the snap ring so that the
snap ring’s tapered part is on the outside.
>>C<< SELF-LOCKING NUT
INSTALLATION
Use the special tools to install the self-locking nut.
•Special spanner (MB991367)
•Pin (MB991386)
>>D<< AIR GAP ADJUSTMENT
Check that the clutch air gap is inside the standard
value. If outside the standard value, use a shim to
adjust the gap.
Standard value: 0.3 − 0.5 mm
INSPECTIONM1552014300950
REFRIGERANT TEMPERATURE SWITCH
CAUTION
Do not heat more than necessary.
1. Dip the metal part of the cooling temperature
switch into engine oil and increase the oil
temperature using a gas burner or similar.
2. When the oil temperature reaches the standard
value, check that voltage is supplied between the
terminals.
Standard value:
NOTE: When the oil temperature is 150
°C or
more and there is no continuity, the resistance will
not be 2
Ω or lower until the oil temperature
reduces to 120
°C or less.
AC001412
Snap ring
RotorClutch coil
Tapered part
AB
AC100633AB
MB991386
MB991367
AC100637AB
Thickness
gauge
Item Temperature
Less than 2
ohmsSlightly below 150°C
No continuity 150°C or more
AC100787
Thermometer
Engine oil
AB
AC100810
Continuity
No continuity
Oil temperature
AD
120˚C150˚C

CONDENSER AND CONDENSER FAN MOTOR
HEATER, AIR CONDITIONER AND VENTILATION55-96
CONDENSER AND CONDENSER FAN MOTOR
REMOVAL AND INSTALLATIONM1552006700384
Pre-removal and Post-installation Operation
•Refrigerant draining and Refilling (Refer to Charging
P.55-70 and Discharging P.55-72).
•Air cleaner cover and air flow sensor assembly Removal
and Installation (Refer to GROUP 15, Air cleaner P.15-3).
AC304889
5, 6
A/C compressor oil:
SUN PAG 56-Pipe coupling
O ring
2
5
10
106
7
9
8
1034
1
NN
NAB
4.9 ± 0.9 N·m
Fan shroud assembly removal
steps
1. Fan shroud assembly
2. Fan
3. Fan motor
4. Fan shroudCondenser removal steps<>5. Liquid pipe A connection
<>6. Flexible discharge hose connection
>>A<<7. Condenser assembly
8. Clamp
9. Receiver
10. O ring

CONDENSER AND CONDENSER FAN MOTOR
HEATER, AIR CONDITIONER AND VENTILATION55-97
REMOVAL SERVICE POINT
<> FLEXIBLE SUCTION HOSE AND
LIQUID PIPE A DISCONNECTION
CAUTION
As the compressor oil and receiver are highly
moisture absorbent, use a non-porous material
to plug the hose and nipples.
To prevent the entry of dust or other foreign bodies,
plug the dismantled hose and condenser assembly
nipples.
INSTALLATION SERVICE POINT
>>A<< CONDENSER INSTALLATION
When replacing the condenser, refill it with a
specified amount of compressor oil and install it. (to
the vehicle).
Compressor oil: SUN PAG 56
Quantity: 15 mL
INSPECTIONM1552014300961
CONDENSER FAN MOTOR CHECK
Check to be sure that the condenser fan motor
operates when battery voltage is applied to terminal
2 and terminal 1 earthed.
A304852
12

REFRIGERANT LINE
HEATER, AIR CONDITIONER AND VENTILATION55-98
REFRIGERANT LINE
REMOVAL AND INSTALLATION M1552006400402
Pre-removal and Post-installation Operation
•Refrigerant Draining and Refilling (Refer to P.55-70.)
•Air Cleaner Removal and Installation (Refer to GROUP
15, Air cleaner P.15-3.)
•Radiator Grille Removal and Installation (Refer to
GROUP 51, Front bumper P.51-2.)
AC304553
1
2
3
45
6
7
8N
N
N
N
N
8 8
8
8
High-pressure
side service valve
Low-pressure side
service valve
4.9 ± 0.9 N·m 13 ± 1 N·m
4.9 ± 0.9 N·m
12 ± 2 N·m
AB
6
A/C compressor oil: SUN PAG 56 -Pipe coupling
O-ringO-ring
1, 2, 3,
5, 6
Removal steps
<>1. Dual pressure switch
<>2. Liquid pipe A
<>3. Flexible discharge hose
4. Expansion valve cover
<> >>A<<5. Flexible suction hose
<> >>A<<6. Liquid pipe B
7. Expansion valve cover
8. O ringRemoval steps (Continued)

REFRIGERANT LINE
HEATER, AIR CONDITIONER AND VENTILATION55-99
REMOVAL SERVICE POINT
<> HOSE/PIPE DISCONNECTION
CAUTION
As the compressor oil and receiver are highly
moisture absorbent, use a non-porous material
to plug the hose and nipples.
To prevent the entry of other foreign bodies, plug the
condenser, compressor, and expansion valve
nipples.
INSTALLATION SERVICE POINT
>>A<< SUCTION HOSE INSTALLATION
When replacing the suction hose, refill them with a
specified amount of compressor oil, and then install
them.
Compressor oil: SUN PAG 56
Quantity: Suction hose: 10 cm
3
REMOVAL AND INSTALLATION M1552006400413
Pre-removal and Post-installation Operation
•Refrigerant Draining and Refilling (Refer to P.55-70.)
•Air Cleaner Removal and Installation (Refer to GROUP
15, Air cleaner P.15-3.)
•Radiator Grille Removal and Installation (Refer to
GROUP 51, Front bumper P.51-2.)
AC304554
1
2
3
4
5
6
7
8N
8N
8N
N8 8
N
4.9±0.9 N·m
Low-pressure side
service valve 13 ± 1 N·mHigh-pressure
Side Service Valve
12 ± 2 N·m
4.9 ± 0.9 N·m
AB
6
A/C compressor oil: SUN PAG 56 -Pipe coupling
O-ringO-ring
1, 2, 3,
5, 6
Removal steps
<>1. Dual pressure switch
<>2. Liquid pipe A
<>3. Flexible discharge hose
4. Expansion valve cover
<> >>A<<5. Flexible suction hose
<> >>A<<6. Liquid pipe B
7. Expansion valve cover
8. O ringRemoval steps (Continued)

REFRIGERANT LINE
HEATER, AIR CONDITIONER AND VENTILATION55-100
REMOVAL SERVICE POINT
<> HOSE/PIPE DISCONNECTION
CAUTION
As the compressor oil and receiver are highly
moisture absorbent, use a non-porous material
to plug the hose and nipples.
To prevent the entry of other foreign bodies, plug the
condenser, compressor, and expansion valve
nipples.
INSTALLATION SERVICE POINT
>>A<< SUCTION HOSE INSTALLATION
When replacing the suction hose, refill them with a
specified amount of compressor oil, and then install
them.
Compressor oil: SUN PAG 56
Quantity: Suction hose: 10 cm
3