1990 MITSUBISHI SPYDER Service Repair Manual

clock climate settings trunk release keyless entry adblue reset tire pressure reset

Page 2049 of 2103

MITSUBISHI SPYDER 1990 Service Repair Manual HEATER, AIR
AND VENTILATION On-vehicle Service
Magnetic clutch
High/Low-
pressure side terminals
LOW-PRESSURE HIGH-PRESSURESIDESIDE
0 0 0 0 0 1 6 9
MAGNETIC CLUTCH TEST
1. Disconnect the

Page 2050 of 2103

MITSUBISHI SPYDER 1990 Service Repair Manual HEATER, AIR
AND On-vehicle Service
If the negative pressure (vacuum) is lost, check for
loose connections. Then, repeat the evacuation proc e-
dure from step 12. If negative pr

HEATER, AIR
AND On-vehicle Service
If the negative pressure (vacuum) is lost, check for
loose connections. Then, repeat the evacuation proc e-
dure from step 12. If negative pressure (vacuum) is
still lost, add 1 lb of refrigerant and check system
using an
compatible leak detector.
TSB Revision
CHARGING
1. With the handles turned in all the way (valve cl osed),
install the adaptor valve to the low-pressure
of the
gauge manifold.
2. Connect the charging hose (blue) to the adaptor valve.
3.Connect the quick joint (for low-pressure) to the charging
hose (blue).
4.Connect the quick joint (for low-pressure) to the
sure service valve.
NOTE
The low-pressure service valve should be connected to
the suction hose.
Caution
1. Use tools that are designed for
2. To install the quick joint, press section A firm ly
against the service valve until a click is heard.
When connecting, run your hand along the hose
while pressing to ensure that there are no bends
in the hose.
5. Close the high and low-pressure valves of the ga uge
manifold.
6.Install the vacuum pump adaptor to the vacuum pump.
7. Connect the vacuum pump plug to the vacuum pump
adaptor.
8.Connect the charging hose (yellow) to the connec-
tion port of the vacuum pump adaptor.
9. Tighten the adaptor valve handle (valve open). 10. Open the low-pressure valve of the gauge manifo ld.
11. Turn the power switch of the vacuum pump to the ON
position.
NOTE
Even if the vacuum pump power switch is, turned ON,
the vacuum pump will not operate because of the pow er
supply connection in step (7).
12. Turn the vacuum pump adaptor switch
the
side to start the vacuum pump.
Caution Do not operate the
during evacuation.
13. Evacuate to a vacuum reading of 100 (29.5
or higher (takes approx. 10 minutes).
14. Turn the vacuum pump adaptor switch OFF and all ow
to stand it for 5 minutes.
Caution Do not operate the compressor in the vacuum condi-
tion; damage may occur.
15. Carry out a leak test. (Good if the negative pr essure
does not drop.)
Caution

Page 2051 of 2103

MITSUBISHI SPYDER 1990 Service Repair Manual HEATER, AIR
AND VENTILATION On-vehicle
Bulk
Adaptorvalve
Bulk[Refrigerant container)
16. Turn the handle of the valve back allthe way
(valve closed), remove it from the gauge ma

Page 2052 of 2103

MITSUBISHI SPYDER 1990 Service Repair Manual HEATER, AIR
AND VENTILATION On-vehicle Service
Bulk container
[Refrigerant container)
Refrigerant container)Bulk container
(Refrigerant container)
Low-pressure
service valve
I
CORRECTING

Page 2053 of 2103

MITSUBISHI SPYDER 1990 Service Repair Manual HEATER, AIR
AND VENTILATION On-vehicle Service
USING REFRIGERANT RECOVERY
RECYCLING UNIT
the refrigerant recovery and recycling refill the
refrigerant.
NOTE
Refer to that Refrige

Page 2054 of 2103

MITSUBISHI SPYDER 1990 Service Repair Manual HEATER, AIR
AND VENTILATION On-vehicle Service
PERFORMANCE TEST
1. The vehicles to be tested should be in a place that is
not in direct sunlight.
2.Close the high and low-pres

HEATER, AIR
AND VENTILATION On-vehicle Service
PERFORMANCE TEST
1. The vehicles to be tested should be in a place that is
not in direct sunlight.
2.Close the high and low-pressure valve of the gauge man-
ifold.
3. Connect the charging hose (blue) to the low-pres sure
valve and connect the charging hose (red) to the high-pres-
sure valve of the gauge manifold.
4. Install the quick joint (for low-pressure) to th e charging
hose (blue), and connect the quick joint (for high- pressure)
to the charging hose (red).
5.Connect the quick joint (for low-pressure) to the low-pres-
sure service valve and connect the quick joint (for
pressure) to the high-pressure service valve.
NOTE
The high-pressure service valve is on discharge pip e
and the low-pressure service valve is on the suction hose.
Caution
To connect the quick joint, press section A firmly
against the service valve until a click is heard.
When connecting, run your hand along the hose while
pressing to ensure that there are no bends in the
hose.
6. Start the engine.
7. Set the A/C controls as follows: A/C switch: A/C
ON position
Mode selection: Face position
Temperature control: Max. cooling position
Air selection: Recirculation position
Blower switch: HI (Fast) position
8. Adjust engine speed to 1,000
with A/C clutch en-
gaged.
9. Engine should be warmed up with doors and window s
closed.
10. a thermometer in the left center A/C outlet and
operate the engine for 20 minutes.
11. Note the discharge air temperature.
NOTE
If the clutch cycles, take the reading before the c lutch
disengages.
Performance Temperature Chart
Garage ambient temperature 20 (68)25 (77)35 (95) 40 (104)
Discharge air temperature 3.5-7.5
(37-41)
(37-43) (38-46) (39-46)
Compressorhigh pressure (psi) 1,350 1,570 130.6)(139.3-227.8)
Compressor low pressure (psi)140
(20.3)
TSB Revision1

Page 2055 of 2103

MITSUBISHI SPYDER 1990 Service Repair Manual HEATER, AIR
AND VENTILATION On-vehicle
REFRIGERANT LEAK REPAIR
LOST CHARGE
If the system has lost all charge due to a leak:
1. Evacuate the system. (See procedure.)
2. Charge

HEATER, AIR
AND VENTILATION On-vehicle
REFRIGERANT LEAK REPAIR
LOST CHARGE
If the system has lost all charge due to a leak:
1. Evacuate the system. (See procedure.)
2. Charge the system with approximately one pound o f refrigerant.
3. Check for leaks.
4. Discharge the system.
5. Repair leaks.
6. Replace receiver drier.
Caution
Replacement filter-drier units must be sealed while in storage. The drier used
will absorb water/water vapor quickly upon exposure to the atmosphere. When installing a
drier, have all tools and supplies ready for quick reassembly to avoid keeping the system
open anylonger than necessary.
,
7. Evacuate and charge system.
LOW CHARGE
If the system has not lost all of its refrigerant c harge; locate and repair all leaks. If it is necess ary to
increase the system pressure to find the leak (beca use of an especially low charge) add refrigerant.
If it is possible to repair the leak without discha rging the refrigerant system, use the procedure for
low refrigerant level.
HANDLING TUBING AND FITTINGS
Kinks in the refrigerant tubing or sharp bends in t he refrigerant hose lines will greatly reduce the capacity
of the entire system. High pressures are produced i n the system when it is operating. Extreme care
must be exercised to make sure that all connections are pressure tight. Dirt and moisture can enter
the system when it is opened for repair or replacement of lines or components. The following precautions
must be observed. The system must be completely dis charged before opening any fitting or connection
in the refrigeration system. Open fittings with cau tion even after the system has been discharged. If
any pressure is noticed as a fitting is loosened, a llow trapped pressure to bleed off very slowly.
Never attempt to rebend formed lines to fit. Use th e correct line for the installation you are servicing.
A good rule for the flexible hose lines is keep the radius of all bends at least 10 times the diameter
of the hose. Sharper bends will reduce the flow of refrigerant.
The flexible hose lines should be routed so that th ey are at least 80 mm (3 in.) from the exhaust mani fold.
It is good practice to inspect all flexible hose lines at least once a year to make sure they are in g ood
condition and properly routed.
O-rings used on connections are not reusable.
TSB Revision

Page 2056 of 2103

MITSUBISHI SPYDER 1990 Service Repair Manual 6HEATER, AIR
AND VENTILATION On-vehicle Service
COMPRESSOR NOISE CHECK
You must first know the conditions when the noise occurs. These conditions are: weather, vehicle speed,
in

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