lock ISUZU KB P190 2007 Workshop Repair Manual

0A-2 GENERAL INFORMATION
GENERAL REPAIR INSTRUCTIONS
1. Park the vehicle on level ground and chock the front or rear wheels before lifting the vehicle.
2. Raise the vehicle with a jack set against the axle or the frame.
3. Support the vehicle on chassis stands.
4. Use covers on the vehicle body, seats, and floor to prevent damage and/or contamination.
5. Disconnect the grounding cable from the battery before performing service operations.
This will prevent cable damage or burning due to short circuiting.
6. Handle brake fluid and antifreeze solution with great care.
Spilling these liquids on painted surfaces will damage the paint.
7. The use of the proper tool(s) and special tool(s) where specified is essential to efficient, reliable, and safe
service operations.
8. Always use genuine ISUZU replacement parts.
9. Discard used cotter pins, gaskets, O-rings, oil seals, lock washers, and self-locking nuts at disassembly.
Normal function of these parts cannot be guaranteed if they are reused.
10. Prepare new cotter pins, gaskets, O-rings, oil seals, lock washers, and self-locking nuts for installation.
11. Keep the disassembled parts neatly in groups. This will facilitate smooth and correct reassembly.
12. Keep fixing nuts and bolts separate. Fixing nuts and bolts vary in hardness and design according to installation position.
13. Clean all parts before inspection or reassembly.
14. Clean the oil ports and other openings with compressed air to make certain that they are free from dirt and obstructions.
15. Lubricate the rotating and sliding faces of all moving parts with oil or grease before installation.
16. Use the recommended liquid gasket to prevent leakage.
17. Carefully observe all nut and bolt torque specifications.
18. W hen removing or replacing parts that require refrigerant to the discharged from the air conditioning system, be sure to use the Vehicle Refrigerant Recovery and Recycling Equipment (VRRRE) to recover and recycle R134a,
to promote the aim of the protection of the ozone layer covering the earth.
19. Check and recheck your work. No service operation is complete until you have done this.


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ISUZU KB P190 2007

GENERAL INFORMATION 0A-5
7. Measurement criteria are defined by the terms "standard" and "limit".
A measurement falling within the "standard" range indicates that the applicable part or parts are serviceable.
"Limit" is an absolute value.
A measurement falling outside the "limit" indicates that the applicable part or parts must be repaired or replaced.
8. Components and parts are listed in the singular form throughout the W orkshop Manual.
9. The following directional criteria are used throughout the W orkshop Manual:
Front:
The cooling fan side of the engine.
Right:
The right-hand side of the engine viewed from the flywheel.
Left:
The left-hand side of the engine viewed from the flywheel.
Rear:
The flywheel side of the engine.
Cylinder numbers are counted from the front of the engine towards the rear.
The engine's rotation is clockwise viewed from the front of the engine.


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HEATER AND AIR CONDITIONING 1-31

REPAIR OF REFRIGERANT LEAKS
Refrigerant Line Connections



RTW 410SH000101
Install new O-ring, if required. W hen disconnecting or
connecting lines, use two wrenches to prevent the connecting
portion from twisting or becoming damaged.


W hen connecting the refrigerant line at the block joint, securely
insert the projecting portion of the joint portion into the
connecting hole on the unit side and secure with a bolt.




Apply specified compressor oil to the O-rings prior to
connecting.

CAUTION:
Compressor (PAG) oil to be used varies according to
compressor model. Be sure to apply oil specified for the
model of compressor.



O-rings must be closely aligned with raised portion of
refrigerant line.


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ISUZU KB P190 2007

1-36 HEATER AND AIR CONDITIONING
F06R300013



•
••
•
Direct charging with a manifold gauge charging
station method.
Handling the charging valve handle when installing refrigerant
container.
1) Before attaching the charge valve to the refrigerant container, turn the charge valve handle counterclockwise
until the needle is fully retracted.
2) Turn the plate nut counterclockwise until it reaches its highest position relative to the charge valve.
3) Install the charge valve onto the refrigerant container.
4) Turn the plate nut clockwise and connect the center hose of the manifold gauge to the charge valve.
5) Tighten the plate nut sufficiently by hand. Then turn the charge valve handle clockwise to lower the needle and bore
a hole in the refrigerant container.
6) Turn the charge valve handle counterclockwise to raise the needle. The refrigerant in the refrigerant container is
charged into the air conditioning system by the operation of
the manifold gauge.
•
••
•
Be absolutely sure not to reuse the emptied

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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

1-40 HEATER AND AIR CONDITIONING
CONDENSER
REMOVAL AND INSTALLATION (4JH1-TC, 4JJ1-TC Standard Output)

13
12
8
10
11
14
10
9
6
7
5
2
3
1
41410
4JH1-TC 4JJ1-TC
Standard Output
(RHD)
14
10
4JJ1-TC
Standard Output
(LHD)
9

This illustration is based on RHD model


RTW 710LF001401
Removal Steps
1. Radiator grille
2. Front bumper fascia • Refer to SECTION 2A “FRONT
BUMPER”
3. Front bumper impact support assembly • Refer to SECTION 2A “FRONT
BUMPER”
4. Air cleaner assembly
5. Inter cooler • Refer to SECTION 6A “INTER COOLER”
6. Engine hood lock
7. Engine hood front end stay
8. Pressure switch connector
9. Condenser fan connector
10. Refrigerant line
11. Refrigerant line
12. Receiver/drier bracket
13. Receiver/drier
14. Condenser assembly
Installation Steps
14. Condenser assembly
13. Receiver/drier
12. Receiver/drier bracket
11. Refrigerant line
10. Refrigerant line
9. Condenser fan connector
8. Pressure switch connector
7. Engine hood front end stay
6. Engine hood lock
5. Inter cooler • Refer to SECTION 6A “INTER COOLER”
4. Air cleaner assembly
3. Front bumper impact support assembly • Refer to SECTION 2A “FRONT
BUMPER”
2. Front bumper fascia • Refer to SECTION 2A “FRONT
BUMPER”
1. Radiator grille


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HEATER AND AIR CONDITIONING 1-41

REMOVAL AND INSTALLATION (4JJ1-TC High Output, 4JK1-TC High Output, 4JA1-T)




This illustration is based on RHD model


RTW 710LF001501

Removal Steps
1. Radiator grille
2. Engine hood lock
3. Engine hood front end stay
4. Pressure switch connector
5. Condenser fan connector
6. Refrigerant line
7. Refrigerant line
8. Receiver/drier bracket
9. Receiver/drier
10. Condenser assembly

Installation Steps
10. Condenser assembly
9. Receiver/drier
8. Receiver/drier bracket
7. Refrigerant line
6. Refrigerant line
5. Condenser fan connector
4. Pressure switch connector
3. Engine hood front end stay
2. Engine hood lock
1. Radiator grille


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1-42 HEATER AND AIR CONDITIONING

REMOVAL AND INSTALLATION (C24SE)




This illustration is based on RHD model


RTW 710LF004101

Removal Steps
1. Radiator grille
2. Engine hood lock
3. Engine hood front end stay
4. Triple pressure switch connector
5. Condenser fan connector
6. Refrigerant line
7. Refrigerant line
8. Receiver/drier bracket
9. Receiver/drier
10. Condenser assembly

Installation Steps
10. Condenser assembly
9. Receiver/drier
8. Receiver/drier bracket
7. Refrigerant line
6. Refrigerant line
5. Condenser fan connector
4. Pressure switch connector
3. Engine hood front end stay
2. Engine hood lock
1. Radiator grille

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HEATER AND AIR CONDITIONING 1-45
COMPRESSOR
REMOVAL AND INSTALLATION (4JA1-T, 4JH1-TC)






852R300006
Removal Steps
1. Air duct
2. Magnetic clutch harness connector
3. Lock nut
4. Tension adjustment bolt
5. Drive belt
6. Refrigerant line
7. Bolt; compressor to bracket
8. Compressor assembly

Installation Steps
8. Compressor assembly
7. Bolt; compressor to bracket

6. Refrigerant line
5. Drive belt
4. Tension adjustment bolt
3. Lock nut
2. Magnetic clutch harness connector
1. Air duct


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1-80 HEATER AND AIR CONDITIONING


RTW 710MH000101
Important Operations - Removal
1. Control lever assembly
Refer to “CONTROL LEVER ASSEMBLY” in this section.

2. Illumination Bulb
To remove the illumination bulb, insert a pliers (long nose) into
the cap at the back of the bulb. Turn the bulb counterclockwise
and pull it free.



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