2007 ISUZU KB P190 door

0A-6 GENERAL INFORMATION
IDENTIFICATION




CHASSIS NUMBER
The chassis number is stamped on the right-hand side of the
chassis side member under the right door.



RTW 50ASH000201

VEHICLE IDENTIFICATION PLATE
The vehicle identification plate is attached to the upper face of
the radiator sill in the engine compartment.



BODY AND OPTION IDENTIFICATION
PLATE
The body and option plate shows body style, body serial
number, paint and trim colour combination, paint number,
engine transmissions, axle ratio options and built date. The
built date is defined as 'the date of manufacture' by the
calendar month and year in which the body shell and power
train sub-assemblies are co-joined or moved from the
production line.


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ISUZU KB P190 2007

HEATER AND AIR CONDITIONING 1-3
GENERAL DESCRIPTION
COOLING SYSTEM









1.
Compressor 8.
Evaporator core
2.
Magnetic clutch 9.
Blower motor
3.
Receiver/Drier 10.
Heater unit
4.
Triple pressure switch 11.
Mode (DEF/FOOT) control door
5.
Condenser 12.
Mode (VENT) control door
6.
Evaporator assembly 13.
Electronic thermostat
7.
Expansion valve 14.
Heater core



RTW 610LF000101

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ISUZU KB P190 2007

HEATER AND AIR CONDITIONING 1-37
refrigerant container.


1) Make sure the evacuation process is correctly completed.
2) Connect the center-hose of the manifold gauge to the refrigerant container. •
••
•
Turn the charge valve handle counterclockwise to purge
to the charging line and purge any air exiting in the
center-hose of the manifold gauge.
3) Open the low-pressure hand valve and charge the refrigerant about 200 g (0.44 lbs.). •
••
•
Make sure the high-pressure hand valve is closed.
•
••
•
Avoid charging the refrigerant by turning the refrigerant
container upside down.
4) Close the low-pressure hand valve of the manifold gauge. •
••
•
Check to ensure that the degree of pressure does not
change.
5) Check the refrigerant leaks by using a HFC-134a leak detector. •
••
•
If a leak occurs, repair the leak connection, and start all
over again from the first step of evacuation.
6) If no leaks are found, open the low-pressure hand valve of the manifold gauge. Then continue charging refrigerant to
the system. •
••
•
W hen charging the system becomes difficult:
(1) Run the engine at Idling and close the all vehicle doors.
(2) A/C switch is "ON".
(3) Set the fan control knob (fan switch) to its highest position.
(4) Set air source selector lever to “RECIRC”



WARNING
BE ABSOLUTELY SURE NOT TO OPEN THE HIGH-
PRESSURE HAND VALVE. SHOULD THE HIGH-
PRESSURE HAND VALVE BE OPENED, THE HIGH-
PRESSURE REFRIGERANT GAS WOULD FLOW
BACKWARD, AND THIS MAY CAUSE THE REFRIGERANT
CONTAINER TO BURST.
7) W hen the refrigerant container is emptied, use the following procedure to replace it with a new refrigerant container.
(1) Close the low-pressure hand valve.
(2) Raise the needle upward and remove the charge valve.
(3) Reinstall the charge valve to the new refrigerant container.
(4) Purge any air existing in the center hose of the manifold gauge.






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ISUZU KB P190 2007

1-54 HEATER AND AIR CONDITIONING
OIL RETURN OPERATION
There is close affinity between the oil and the refrigerant.
During normal operation, part of the oil recirculates with the
refrigerant in the system.
W hen checking the amount of oil in the system, or replacing
any component of the system, the compressor must be run in
advance for oil return operation. The procedure is as follows:
1) Open the all doors and engine hood.
2) Start the engine and A/C switch is "ON" and Set the fan control knob at its highest position.
3) Run the compressor for more than 20 minutes between 800 and 1,000 rpm in order to operate the system.
4) Stop the engine.


REPLACEMENT OF COMPONENT PARTS
W hen replacing system component parts, supply the following
amount of oil to the component parts to be installed.
Component parts to be installed Amount of oil
Evaporator 50 cm3 (1.41 lmp fl oz)
Condenser 30 cm3 (0.84 lmp fl oz)
Receiver/drier 30 cm3 (0.84 lmp fl oz)
Refrigerant line (One piece) 10 cm3 (0.28 lmp fl oz)

Refrigeration oil must be replenished if more than two parts
are removed at the same time. After installing these
components, check compressor oil.



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ISUZU KB P190 2007

HEATER AND AIR CONDITIONING 1-61
DISASSEMBLY AND REASSEMBLY


This illustration is based on RHD model
RTW 310LF001401
Disassembly Steps
1. Attaching screw
2. Main link-side
3. Sub link-side
4. Mode rod
5. Holder rod
6. Mode lever
7. DEF/FOOT-spring
8. VENT-spring
9. Heater box clip
10. Attaching screws
11. Foot duct
12. FOD H/Pipes seal
13. Heater core clamp
14. Heater core
15. Mix lever (2)
16. Mix lever (1)
17. Control cable clamp
18. Attaching screws
19. Upper case
20. Lower case
21. DEF/FOOT door
22. VENT door
23. Mix door
24. Control cable clamp
Reassembly Steps
24. Control cable clamp
23. Mix door
22. VENT door
21. DEF/FOOT door
20. Lower case
19. Upper case
18. Attaching screws
17. Control cable clamp
16. Mix lever (1)
15. Mix lever (2)
14. Heater core
13. Heater core clamp
12. FOD H/Pipes seal
11. Foot duct
10. Attaching screws
9. Heater box clip
8. VENT-spring
7. DEF/FOOT-spring
6. Mode lever
5. Holder rod
4. Mode rod
3. Sub link-side
2. Main link-side
1. Attaching screw

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ISUZU KB P190 2007

1-64 HEATER AND AIR CONDITIONING
DISASSEMBLY AND REASSEMBLY


This illustration is based on RHD model
RTW 610LF000701


Disassembly Steps
1. Attaching screw
2. Main link-side
3. Sub link-side
4. Mode rod
5. Holder rod
6. Mode lever
7. DEF/FOOT-spring
8. VENT-spring
9. FOD H/pipes seal
10. Heater box clip
11. Heater core clamp
12. Upper case
13. Lower case
14. DEF/FOOT door
15. VENT door
16. Control cable clamp
Reassembly Steps
16. Control cable clamp
15. VENT door
14. DEF/FOOT door
13. Lower case
12. Upper case
11. Heater core clamp
10. Heater box clip
9. FOD H/pipes seal
8. VENT-spring
7. DEF/FOOT-spring
6. Mode lever
5. Holder rod
4. Mode rod
3. Sub link-side
2. Main link-side
1. Attaching screw

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ISUZU KB P190 2007

1-72 HEATER AND AIR CONDITIONING
DISASSEMBLY AND REASSEMBLY




This illustration is based on RHD model


Disassembly Steps
1. Attaching screw
2. Intake link
3. Intake lever
4. Intake packing
5. Attaching screws
6. Blower motor assembly
7. Attaching screw
8. Flat resistor
9. Upper case
10. Lower case
11. Mode door
12. Bell mouth
13. Control cable clamp
Reassembly Steps
13. Control cable clamp
12. Bell mouth
11. Mode door
10. Lower case
9. Upper case
8. Flat resistor
7. Attaching screw
6. Blower motor assembly
5. Attaching screws
4. Intake packing
3. Intake lever
2. Intake link
1. Attaching screw

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ISUZU KB P190 2007

1-90 HEATER AND AIR CONDITIONING
f06r300014
CHECKING REFRIGERANT SYSTEM
WITH MANIFOLD GAUGE
Conditions;
• Ambient temperature at approx. 30 ∼35 °C (86 ∼95 °F)
• Run the engine at Idling
• A/C switch is “ON”
• Run the blower motor at “4” (high) position
• Temperature control knob sets at “MAX COLD”
• Air source selector lever at “CIRC”
• Close the all doors
Normal pressures kPa (kg/cm
2 /psi);
Low-pressure side: Approx. 127 – 245 (1.3 – 2.5 / 18 – 36)
High-pressure side: Approx. 1373 – 1670 (14 – 17 / 199 – 242)
Connect the manifold gauge
Low-pressure hose (LOW ) ∼ Suction side
High-pressure hose (HI) ∼ Discharge side



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ISUZU KB P190 2007