air conditioning ISUZU TF SERIES 2004 Repair Manual

1-38 HEATER AND AIR CONDITIONING
CONDENSER FAN MOTOR
REMOVAL AND INSTALLATION





RTW410MF000101

Removal Steps
1. Radiator grille
2. Fan connector
3. Condenser fan motor

Installation Steps
3. Condenser fan motor
2. Fan connector
1. Radiator grille

HEATER AND AIR CONDITIONING 1-39
RECEIVER / DRIER
REMOVAL AND INSTALLATION



RTW410LF000601

Removal Steps
1. Radiator grille
2. Trinary pressure switch connector
3. Refrigerant line
4. Bracket bolt
5. Receiver/drier

Installation Steps
5. Receiver/drier
4. Bracket bolt
3. Refrigerant line
2. Trinary pressure switch connector
1. Radiator grille

1-40 HEATER AND AIR CONDITIONING
COMPRESSOR
REMOVAL AND INSTALLATION (4J ENGINE)





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

HEATER AND AIR CONDITIONING 1-41
Important Operations - Installation

7. Bolt; Compressor to Bracket
N
m (kgf
m/lb
ft)

Torque 44 (4.5/33)



6. Refrigerant Line
N
m (kgf
m/lb
ft)

Torque 11
19 (1.1/9.5
1.9/14)



Compressor Belt
Check the drive belt tension.
Depress the drive belt mid-portion with a 98N (10kg/22Ib)
force.
mm(in.)

Standard deflection 14~17 (0.55~0.67)

1-42 HEATER AND AIR CONDITIONING

REMOVAL AND INSTALLATION (6VE1)



RTW310MF000301

Removal Steps
1. Magnetic clutch harness connector
2. Compressor belt
3. Refrigerant line
4. Bolt; compressor to bracket
5. Compressor assembly

Installation Steps
5. Compressor assembly

4. Bolt; compressor to bracket

3. Refrigerant line

2. Compressor belt
1. Magnetic clutch harness connector

HEATER AND AIR CONDITIONING 1-43
Important Operations - Installation

4. Bolt; Compressor to Bracket
N
m (kgf
m/lb
ft)

Torque 19 (1.9/14)



3. Refrigerant Line
N
m (kgf
m/lb
ft)

Torque 11
19 (1.1/9.5
1.9/14)

RTW310MH000101

2. Compressor Belt
Move compressor belt tensioner to loose side using
wrench, then install serpentine belt to normal position.

1-44 HEATER AND AIR CONDITIONING

REMOVAL AND INSTALLATION (C24SE)

RTW310MF000401

Removal Steps
1. Magnetic clutch harness connector
2. Compressor belt
3. Refrigerant line
4. Bolt; compressor to bracket
5. Compressor assembly

Installation Steps
5. Compressor assembly

4. Bolt; compressor to bracket

3. Refrigerant line

2. Compressor belt
1. Magnetic clutch harness connector

HEATER AND AIR CONDITIONING 1-45
Important Operations - Installation

4. Bolt; Compressor to Bracket
N
m (kgf
m/lb
ft)

Torque 19 (1.9/14)



3. Refrigerant Line
N
m (kgf
m/lb
ft)

Torque 11
19 (1.1/9.5
1.9/14)



2. Compressor Belt
Move compressor belt tensioner to loose side using
wrench, then install serpentine belt to normal position.

1-46 HEATER AND AIR CONDITIONING

GENERAL REPAIR PROCEDURE
OIL SPECIFICATION

The HFC-134a system requires a synthetic (PAG)
compressor oil.

Compressor (PAG) oil varies according to compressor
model. Be sure to use oil specified for the model of
compressor.
Specified Compressor Oil
DH-PR



HANDLING OF OIL

The oil should be free from moisture, dust, metal powder,
etc.
 Do not mix with other oil.
 The water content in the oil increases when exposed to the
air. After use, seal oil from air immediately.

The compressor oil must be stored in steel containers, not
in plastic containers.

COMPRESSOR OIL CHECK
The Oil used to lubricate the compressor is circulating with the
refrigerant.
Whenever replacing any component of the system or a large
amount of gas leakage occurs, add oil to maintain the original
amount of. oil.

Oil Capacity

Capacity total in
system CR-14 180 cm3 (5.0 fl.oz.)
Compressor
(Service parts)
charging amount
CR-14
180 cm
3 (5.0 fl.oz.)

HEATER AND AIR CONDITIONING 1-47

Checking and Adjusting for Used Compressor
(1) Perform Oil return operation.
(Refer to "Oil Return Operation" in this section.)
(2) Discharge refrigerant and remove the compressor.


(3) Drain the compressor oil and measure the extracted oil with
a measuring cylinder.
(4) Check the compressor oil for contamination.
(Refer to "Contamination of Compressor Oil" in this
section.)
(5) Adjust oil level following the procedure below.

Type Collected Amount Charging Amount
more than 90 cm3
(3.0 fl.oz.) same as collected
amount
less than 90 cm3
(3.0 fl.oz.) 90 cm3 (3.0 fl.oz.) CR-14

(6) Install the compressor, then evacuate, charge and perform
oil return operation.
(7) Check system operation.


When it is impossible to perform oil return operation, the
compressor oil should be checked in the following order:
(1) Discharge refrigerant and remove the compressor.
(2) Drain the compressor oil and measure the extracted oil with
a measuring cylinder.
(3) Check the oil for contamination.
(4) If more than 90 cm
3 (3.0 fl.oz.) for CR-14 type is extracted
from the compressor, supply same amount of oil to the
compressor to be installed.
If the amount of oil extracted is less than 90 cm
3 (3.0 fl.oz.)
for CR-14 type recheck the compressor oil in the following
order:
(5) Supply 90 cm
3 (3.0 fl.oz.) for CR-14 type oil to the
compressor and install it onto the vehicle.
(6) Perform oil return operation.
(7) Remove the compressor and recheck the amount of oil.
(8) Adjust the compressor oil.