SSANGYONG KORANDO 1997 Service Repair Manual

SSANGYONG MY2002
7C-2 MANUAL & SEMIAUTO-HVAC
SPECIFICATIONS
REFRIGERANT
Core Size (LxWxT)
Core Type
Expansion Valve Type
Thermostat
Resister Type
Cooling CapacityApplicationDescription237.0 x 232.0 x 92.0
Aluminum plate
Angle
ON:4.5 ± 0.6°C, OFF:1.5 ± 0.6°C
Aluminum plate
4,300 Kcal/h (AT 420 CMH)
Capacity
TypeApplicationDescription650 - 750 g
R134a
EVAPORATOR UNIT
BLOWER UNIT
Motor Type
Motor SizeApplicationDescriptionMagnetic
φ 70 x
145
COMPRESSOR
Model
Type
Displacement (cc/rev.)
PCD (Pulley Center Diameter)
Oil
Magnetic clutch outputApplicationDescriptionFK-II (DKV 14C)
Vane rotary type
140.5 (cc/rev)
φ 143
ZXL 200 PG (PAG Oil)
45 W
CONDENSER
Size (WxHxT)
Capacity
TypeApplicationDescription650 x 339.2 x 22.0
11,000 Kcal/h
Parallel Flow
RECEIVER DRIER
Material
Capacity
DesiccantApplicationDescriptionAluminum
250 cc
XH-9 (35 g)

MANUAL & SEMIAUTO-HVAC 7C-3
SSANGYONG MY2002
PRESSURE SWITCH
Type
High (OFF)
Low (ON)ApplicationDescriptionDirect
OFF : 32 ± 2 Kgf/cm
2, DIFF : 6 ± 2 Kgf/cm2
OFF : 2.0 ± 0.2 Kgf/cm2, ON : 2.1 ± 0.2 Kgf/cm2
AIR FILTER
ReplacementApplicationDescriptionEvery 12,000 km (replace earlier if air pollution is heavy)
HEATER UNIT
Heater Core Type
Heating Capacity
Heater Core Size (L x W x T)ApplicationDescription2-ROW
4,600 Kcal/h (AT 300 CMH)
219.5 x 151.8 x 52
FASTENER TIGHTENING SPECIFICATIONS
N•m
4 - 6
4 - 6
4 - 6
5 - 8
4 - 6
20 - 30
20 - 26Lb-Ft
2.9 - 4.4
2.9 - 4.4
2.9 - 4.4
3.7 - 5.9
2.9 - 4.4
14.7 - 22.1
14.7 - 19.1 Condenser Bolt
Condenser Fan Nut
Condenser Bolt
Receiver Drier Pipe Bolt
Receiver Drier Pipe Bolt (Condenser)
Pressure Pipe Bolt
Pressure Mounting BoltLb-In
35.4 - 53.1
35.4 - 53.1
35.4 - 53.1
44.2 - 70.8
35.4 - 53.1
177.0 - 265.5
177.0 - 230.1Application

SSANGYONG MY2002
7C-4 MANUAL & SEMIAUTO-HVAC
DIAGNOSIS
Insufficient
cooling
 Check blowing outlet
Normal outlet
 Check outlet temperature
 Check fan motor operation
Motor operates
with poor outletFan motor does
not operate
 Blown fuse
 Check for motor control circuit
Poor outlet or no
outlet
Intake grille is
cloggedFrosted evaporatorHigh temperatureNormal temperature
 Check the case
 Check heater Check
compressor
operation Warmeaporator
(A/C S/W off, Fan
‘4’)
 Check with sight
glass
 Check thermo amp Remove
cloggings
Normal compressorFaulty compressor
 Check belt
Tension is normal
 Check
magnetic
clutch
 Check clutch
connection
 Check wire Adjust tension
Bubble is not foundBubble is found
 Check refrigerant
volume and air in
system  Check
pressure
Loosened tension
Bubble is not foundBubble is found
 Check refrigerant  Check pressure
Faulty magnetic
electricFaulty clutchFaulty compressor operation
 Check battery voltage
 Check control switch
 Check ground
Normal high/low pressureHigh high/low pressureHigh pressure : low
Low pressure : high
 Check intake
and outlet
temperature  Faulty A/C system
 Faulty A/C mix door
 Faulty vent, intake door Excessive refrigerant
 Dirty cond., fan
 Excessive oil in system
- No diffence in
temperature
- Fast pressure balanceLow intake temperature
 Faulty comp. outlet  Faulty evaporatorNoise
CompressorBeltOthers
 Excessive oil
 Faulty bearing
 Faulty clutch Identify the place
 Faulty belt
 Belt line is correct
 Check belt tension

MANUAL & SEMIAUTO-HVAC 7C-5
SSANGYONG MY2002
DEFECTIVES IN FAN MOTOR CIRCUIT
Fan Motor Does Not Run
Blown fuse
Battery voltage is low
Faulty wiring
Faulty groundChecksActionCheck for short and replace fuse.
Check battery voltage.
Check connectors’ connection.
Do not apply grease. This can cause voltage down.
Remove body painting and completely ground,
Tighten ground bolts and make sure body ground
connection.
Fan Motor Runs in ‘4’position Only (‘3’, ‘2’, ‘1’ : Does Not Run)
Motor Runs With Poor Blowing
Blown resister temperature fuse
Air leakage in parts connectionChecksActionReplace resistor.
Check heater, cooling unit and blower for proper
connection.
Clogged or blocked intake grilleChecksActionClogged or blocked intake grille reduces blowing
capacity.
Frosted Evaporator
Faulty thermo ampChecksActionFrosted evaporator reduces cooling capacity.
Off compressor and maximize blowing capacity

SSANGYONG MY2002
7C-6 MANUAL & SEMIAUTO-HVAC
Oily clutch plate
Low voltage
Faulty electric connection or operationChecksActionClean oily plate using cleaning agent.
Charge battery or check for cause.
Check wire continuity
Check A/C switch and fan switch for continuity and
ground.
Magnetic Clutch Plays By Hand Only
Excessive clearance between
Clutch plate and clutch coilChecksActionAdjust clutch clearance (0.2-0.6mm).
DEFECTIVES IN COMPRESSOR CIRCUIT
Compressor Does Not Run
Faulty high/low pressure
Faulty A/C relayChecksActionCheck compressor magnet voltage supply.
A/C relay.
Magnetic Clutch Slips / Idles

MANUAL & SEMIAUTO-HVAC 7C-7
SSANGYONG MY2002
DIAGNOSIS USING THE MANIFOLD GAUGE
On normal operation during the cooling cycle, the
manifold gauge must indicate approximately 1.5 - 2.0
kg/cm
2 at low pressure side and 14.5 - 15 kg/cm2 at
high pressure side, on condition that the temperature
at the cooler inlet, 30 ºC - 35 ºC, 2,000 rpm of the
engine rpm , full cold and maximum blower speed.
Cause Symptom
Action
1. High and low pressure are abnormally low.
2. Air at cooler outlet is not cold.
1. High and low pressure are abnormally high.
1. High and low pressure are abnormally high.
2. Connection at the low pressure is not cold.
There is a gas leak in the
cooling system.
Insufficient cooling and
faulty condenser cooling
by excessive
refrigerant.
Belt is slipped
There is an air in the
cooling system
Check the oil leak,
repair
Add the refrigerant
Keep the specified
amount of the
refrigerant, Clean the
condenser
Repair the belt
Clean and repair the
receiver-drier
Check the oil
contamination etc.
YAD7B070
YAD7B080
YAD7B100 YAD7B090

SSANGYONG MY2002
7C-8 MANUAL & SEMIAUTO-HVAC
1. The low-pressure and high-pressure are exces-
sive high.
2. There are a lot of moistures in the connection
of the low-side pressure
Cause SymptomAction
1. The low-pressure side indicates excessive high
and high-pressure indicates excessive low.
2. There is a moisture in the connection of the re-
ceiver-drier and the front/back of the expan-
sion valve.
1. The low-side pressure is high or normal inter-
mittently.
The dust and moisture
etc. are frozen at the
expansion valve
A gas leak in the heat
reducer
The mixed moisture is
frozen at the expansion
valve
The faulty expansion
valve, the improper
installation of the heat
reducer
Fail to control the flow
rate
Repair the receiver-drier
Replace the expansion
valve for the faulty heat
reducer
Repair the receiver-drier
and perform the
bleeding
Repair the receiver-drier
Check the oil
contamination etc.
1. The low-pressure is excessive high and high-
pressure is excessive low.
There is an oil leak in
the compressorReplace the compressor
YAD7B110
YAD7B130 YAD7B120
YAD7B140

MANUAL & SEMIAUTO-HVAC 7C-9
SSANGYONG MY2002
COMPONENT LOCATOR
VENTILATION
KAA7C010
1 Foot / Face
2 Foot / Defroster
3 Foot4 Defroster
5 Face

SSANGYONG MY2002
7C-10 MANUAL & SEMIAUTO-HVAC
Air Flow
KAA7C020
VENT Door
FOOT Door
DEF Door
INTAKE Door
AIR MIX DoorVENT
A
C
DB/L
B
B
DFOOT
C
A
DD/F
C
B
BDEF
C
C
A
REC
INDI.
On
-
-
-
AFRE
INDI.
Off
-
-
-
BTemperature
Control Lever Mode Switch Recirculation Switch
Switch
Door
-
-
-
-
-
-C AB

MANUAL & SEMIAUTO-HVAC 7C-11
SSANGYONG MY2002
HEATER SYSTEM
1 Heater-to Defrost Duct
2 Heater Unit
3 Mode Actuator Assembly
4 Heater Controller
5 Side Air Vent6 Coolant Outlet Hose
7 Coolant Inlet Hose
8 Heater-to-Blower Duct
9 Blower Unit
KAA7B450