Mitsubishi Lancer (4A9 engine). Manual — part 309
AC903375
MB992623
AB
Rotor
Threaded
shaft
MB990810
MD999566
COMPRESSOR ASSEMBLY
HEATER, AIR CONDITIONER AND VENTILATION
55A-117
CAUTION
• Be sure to use the guide (MB992623) when
the side bearing puller (MB990810) is used to
prevent the damage of A/C compressor.
• If the threaded shaft of side bearing puller
(MB990810) is turned than necessary, the
rotor may be distorted. Therefore, turn the
threaded shaft lightly only by hand without
using any tools.
Rotor can be removed by hand, but if it is difficult to
remove it, use the guide (MB992623) and the side
bearing puller (MB990810) as shown.
REASSEMBLY SERVICE POINTS
>>A<< A/C COMPRESSOR HIGH PRESSURE
RELIEF VALVE INSTALLATION
CAUTION
Be careful not to damage the O-ring when install-
ing the high-pressure relief valve. Apply the
specified refrigerating machine oil the high-pres-
sure relief valve mounting hole before installa-
tion
Check that O-ring is installed to the high-pressure
relief and use the adjust torque wrench to install the
high-pressure relief valve to the main body of the
compressor.
>>B<< A/C COMPRESSOR COIL ATTACHMENT
AC709545AF
A/C compressor
coil projection
Compressor
unit pin hole
Line up the pin hole on the compressor unit with the
A/C compressor coil projection and attach.
COMPRESSOR ASSEMBLY
HEATER, AIR CONDITIONER AND VENTILATION
55A-118
>>C<< ROTOR INSTALLATION
CAUTION
If the outer wheel side of rotor is pushed, an
abnormal noise can be generated because the
inside of rotor is damaged, therefore, always
push the inner wheel side.
AC902976
A/C compressor coil
MB992623
Rotor
MB992624
AC
AC902977
MB992623
MB992624
Rotor
A/C compressor
coil
AB
Install the rotor while pushing the inner wheel side
slowly using the pusher (MB992624) and guide
(MB992623).
NOTE: Insert the rotor in a direction perpendicular to
the A/C compressor.
>>D<< SNAP RING INSTALLATION
AC209126AD
Snap ring
Rotor
A/C compressor coil
Tapered part
Using snap ring pliers, fit the snap ring so that the
snap ring’s tapered part is on the outside.
>>E<< SELF-LOCKING NUT INSTALLATION
AC709546AC
MB991386
MB991367
Using a special tool, as when removing the nut,
secure the armature and tighten the self-locking nut.
>>F<< AIR GAP ADJUSTMENT
AC707121
Thickness gauge
AE
Check whether or not the air gap of the clutch is
within the standard value.
Standard value:
0.25
− 0.45 mm
NOTE: If there is a deviation of the air gap from the
standard value, make the necessary adjustment by
adjusting the number of shims.
INSPECTION
M1552004701217
COMPRESSOR ASSEMBLY
HEATER, AIR CONDITIONER AND VENTILATION
55A-119
REFRIGERANT TEMPERATURE SWITCH
CAUTION
Do not heat than necessary.
AC102063 AB
Thermometer
Engine oil
1. Immerse the refrigerant temperature sensor probe
into engine oil to heat the sensor probe.
AC100810
Less than 2
No continuity
120˚C
135˚C
AZ
Oil temperature
2. If the oil temperature reaches the standard value,
there should be continuity between the switch
terminals.
Standard value:
Switch status
Operating
temperature
°C
Being turned off (No
continuity)
135
Being turned on { Continuity
exists (2
Ω or less)}
120
NOTE: When the oil temperature is 135
°
C or
more and there is no continuity, the switch will not
be turned on {Continuity exists (2
Ω
or less)} until
the temperature reduces to 120
°
C or less.
CONDENSER ASSEMBLY
HEATER, AIR CONDITIONER AND VENTILATION
55A-120
CONDENSER ASSEMBLY
REMOVAL AND INSTALLATION
M1552015401577
Pre-removal and Post-installation Operation
• Discharging and Recharging refrigerant (Refer to )
• Air Cleaner Intake Duct Removal and Installation (Refer to
GROUP 15
− Air cleaner <4A9>, <4B1, 4J1>, <4N1>).
• Headlamp support panel cover Removal and Installation
(Refer to GROUP 51, Front bumper and radiator grille ).
• Hood latch Removal and Installation (Refer to GROUP
42A
− Hood ).
AC900345
3, 4
5
-Pipe coupling
A/C compressor oil:
SUN PAG 56 or S10X
3
4
5
5
N
N
6
4.9 ± 0.9 N·m
4.9 ± 0.9 N·m
9.0 ± 2.0 N·m
9.0 ± 2.0 N·m
1
2
AB
Removal steps
1.
Headlamp support upper panel
(Refer to GROUP 42A
− Loose
panel )
2.
A/C pressure sensor connector
<<
A
>>
3.
Discharge flexible hose connection
<<
A
>>
4.
Liquid pipe A connection
5.
O-ring
6.
Condenser assembly
NOTE: Condenser fan removal and installation
(Refer to GROUP 14
−
Radiator <4A9>, <4B1,
4J1>, <4N1>).
REMOVAL SERVICE POINT
<<A>> DISCHARGE FLEXIBLE HOSE/LIQUID
PIPE A DISCONNECTION
CAUTION
Use the plug which is not breathable because A/
C compressor oil or receiver have high hygro-
scopicity.
Plug the removed nipple of the pipe, hose and con-
denser to prevent the entry of dust and dirt.
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