air conditioning ISUZU TROOPER 1998 Service Service Manual

AIR CONDITIONING 1B Ð 29
3. Drive Belt
1) Temporary tighten the power steering pump unit
fixing bolts.
2) Push the drive belt when the force of 98N {10kgf}.,
and adjust the drive belt tension by tightening
drive belt tension adjustment bolt, till the 14 ~17
mm (0.55 ~0.67 in) of deflection of the belt is
obtained. Then tighten the power steering pump
fixing bolts.
2. Magnetic Clutch Harness Connector
1. Air Duct (Turbo to air cleaner)
Power steering
pump pulley
Tension adjustment
bolt
Crank pulley Drive beltCompressor98N{10kgf}
14™17mm
(0.55™
0.67 in.)
850RY00002

1B Ð 30 AIR CONDITIONING
Removal Steps
1. Air duct
2. Compressor bracket
3. Magnetic clutch harness
connector
4. Compressor
5. Drive belt
6. Refrigerant line connector
Installation Steps
To install, follow the removal steps in the
reverse order.
4JX1 ENGINE
1
5 46
3
2
852RY00011

AIR CONDITIONING 1B Ð 31
REMOVAL
Preparation:
·Battery ground cable
·Discharge and recover refrigerant (Refer to
ÒREFRIGERANT RECOVERYÓ in this section)
1. Air Duct (Turbo to air cleaner)
Cover up the air duct connecting portion to prevent
foreign materials from getting into the turbo and the
air cleaner.
2. Magnetic Clutch Harness Connector
3. Drive Belt
Loosen the power steering pump unit fixing bolts,
then loosen the drive belt adjustment bolt and
remove the drive belt.
4. Refrigerant Line Connector
5. Compressor
CompressorTension adjustment bolt
Tension pally
14~17mm
(0.55-0.67in)
98N{10kgf}
Crank shaft pully
INSTALLATION
5. Compressor
Tighten the compressor fixing bolts to the specified
torque.
Compressor Bolt Torque Nám (kgám / lbáft)
40 (4.1 / 30)
4. Refrigerant Line Connector
·O-rings cannot be reused. Always replace with new
ones.
·Be sure to apply new compressor oil to the O-rings
when connecting refrigerant lines.
·Tighten the refrigerant line connector to the
specified torque.
Refrigerant Line Bolt Torque Nám (kgám / lbáft)
27 (2.8 / 20)
850RY00003

1B Ð 32 AIR CONDITIONING
3. Drive Belt
1) Temporary tighten the power steering pump unit
fixing bolts.
2) Push the drive belt when the force of 98N {10kgf}.,
and adjust the drive belt tension by tightening
drive belt tension adjustment bolt, till the 14 ~17
mm (0.55 ~0.67 in) of deflection of the belt is
obtained. Then tighten the power steering pump
fixing bolts.
2. Magnetic Clutch Harness Connector
1. Air Duct (Turbo to air cleaner)
CompressorTension adjustment bolt
Tension pally
14~17mm
(0.55-0.67in)
98N{10kgf}
Crank shaft pully
850RY00003

AIR CONDITIONING 1B Ð 33
CONDENSER ASSEMBLY (LHD V6 WITHOUT CONDENSER FAN)
1
2
1
43
5
6
875RW001
Legend
(1) Refrigerant Line
(2) Pressure Switch Connector
(3) Front Bumper Assembly(4) Radiator Grille
(5) Engine Hood Front End Stay
(6) Condenser Assembly

1B Ð 34 AIR CONDITIONING
REMOVAL
1. Disconnect the battery ground cable.
2. Discharge and recover refrigerant.
·Refer to Refrigerant Recovery in this section.
3. Remove radiator grille.
4. Remove front bumper assembly.
·Refer to Bumpers in Body and Accessories section.
5. Remove engine hood front end stay.
6. Disconnect pressure switch connector.
7. Disconnect refrigerant line.
·When removing the line connector, the connecting
part should immediately be plugged or capped to
prevent foreign matter from being mixed into the
line.
8. Remove condenser assembly.
·Handle with care to prevent damaging the
condenser or radiator fin.
·Be sure to apply new compressor oil to the O-rings
when connecting the refrigerant line.
INSTALLATION
1. Install condenser assembly.
·If installing a new condenser, be sure to add 30cc
(1.0 fl. oz.) of new compressor oil to a new one.
·Tighten the condenser fixing bolts to the specified
torque.
Condenser Fixing Torque Nám (kgám / lbáin)
6 (0.6 / 52)
2. Connect refrigerant line.
·Tighten the inlet line connector fixing bolt to the
specified torque.
Inlet Line Torque Nám (kgám / lbáft)
15 (1.5 / 11)
·Tighten the outlet line connector fixing bolt to the
specified torque.
Outlet Line Torque Nám (kgám / lbáin)
6 (0.6 / 52)
·O-rings cannot be reused. Always replace with new
ones.
·Be sure to apply new compressor oil to the O-rings
when connecting the refrigerant line..
3. Connect pressure switch connector.
4. Install engine hood front end stay.
5. Install front bumper assembly.
6. Install radiator grille.

AIR CONDITIONING 1B Ð 35
CONDENSER FAN MOTOR
Removal Steps
(1) Condenser Fan Motor
(2) Fan Motor Shroud
(3) Motor Fan(4) Condenser Unit Net
(5) Radiator Grille
(6) Condenser Fan Assembly
(7) Shroud Bracket
5
4
3
2
1
7
6
875RY00002

1B Ð 36 AIR CONDITIONING
Removal
1. Disconnect the battery ground cable.
2. Discharge and recover refrigerant.
·Refer to Refrigerant Recovery in this section.
3. Remove radiator grille.
4. Remove condenser fan assembly.
·Disconnect the fan motor connector and
remove the 4 fixing bolts.
5. Remove condenser unit net.
·Remove the 4 fixing screws.
6. Remove motor fan.
7. Remove condenser fan motor.
Installation
To install, follow the removal steps in the reverse
order, noting the following point.
1. Route the fan motor harness in its previous
position and fix it securely with clip and bracket.

AIR CONDITIONING 1B Ð 37
Removal Steps
1. Radiator grille
2. Pressure switch connector
3. Refrigerant line
4. Bracket bolt
5. Receiver/drier
Installation Steps
To install, follow the removal steps in the
reverse order.
RECEIVER/DRIER
3
35 2
4
1
REMOVAL
Preparation:
·Disconnect the battery ground cable
·Discharge and recover refrigerant (Refer to
ÒREFRIGERANT RECOVERYÓ in this section.)
1. Radiator Grille
2. Pressure Switch Connector
3. Refrigerant Line
When removing the line connected part, the
connecting part should immediately be plugged or
capped to prevent foreign matter from being mixed
into the line.
4. Bracket Bolt
5. Receiver/Drier
Loosen the bolt, then, using care not to touch or bend
the refrigerant line, carefully pull out the receiver/
drier.

1B Ð 38 AIR CONDITIONING
INSTALLATION
To install, follow the removal steps in the reverse order,
noting the following points:
1. If installing a new receiver/drier, be sure to add 30 cc
(0.8 Imp fl oz) of new compressor oil to a new one.
2. Put the receiver/drier in the bracket, and connect with
the refrigerant line. Check that no excessive force is
imposed on the line. Fasten the bracket bolt to the
receiver/drier.
3. Tighten the line to the specified torque.
Refrigerant Line Bolt Torque Nám (kgám / lbáin)
6 (0.6 / 52)
4. O-rings cannot be reused. Always replace with new
ones.
5. Be sure to apply new compressor oil to the O-rings
when connecting refrigerant line.