2004 DAEWOO NUBIRA Service Repair Manual

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Page 2041 of 2643

DAEWOO NUBIRA 2004 Service Repair Manual MANUAL CONTROL HEATING, VENTILATION AND AIR CONDITIONING SYSTEM 7B – 39
DAEWOO V–121 BL4
3. Align the clutch hub key with the shaft keyway.
Place the clutch drive plate and the hub assembly
onto

MANUAL CONTROL HEATING, VENTILATION AND AIR CONDITIONING SYSTEM 7B – 39
DAEWOO V–121 BL4
3. Align the clutch hub key with the shaft keyway.
Place the clutch drive plate and the hub assembly
onto the compressor shaft.
4. Remove the hub and drive plate remover/installer
J–33013–B center bolt and reverse the body direc-
tion on the center bolt. The body of the hub and
drive plate remover/installer J–33013–B should be
backed off sufficiently to allow the center bolt to be
threaded onto the end of the compressor shaft.
Notice : If the center bolt is threaded fully onto the end of
the compressor shaft, or if the body of the hub and drive
plate remover/installer J–33013–B is held and the center
bolt is rotated, the key will wedge and could break the
clutch drive plate and the hub assembly.
5. Install the hub and drive plate remover/installer
J–33013–B and the bearing onto the clutch drive
plate. Thread the center bolt onto the compressor
shaft.
6. Hold the center bolt with a wrench. Tighten the hex
portion of the hub and drive plate remover/installer
J–33013–B body to press the hub onto the shaft.
Tighten the body several turns.
7. Remove the hub and drive plate remover/installer
J–33013–B and check to see that the clutch hub
key is still in place in the keyway before installing
the clutch drive plate and the hub assembly to its
final position. The air gap between frictional sur-
faces of the clutch drive plate and the clutch pulley
rotor should be 0.38 to 0.64 mm (0.015 to 0.025
inch.).
8. Remove the hub and drive plate remover/installer
J–33013–B. Check for proper positioning of the
clutch hub key. It should be even or slightly above
the clutch hub.
9. Install the shaft nut. Hold the clutch drive plate and
the hub assembly with the clutch hub holding tool
J–33027. Use the shaft nut socket J–33022 and
tighten the nut against the compressor shaft shoul-
der.
Tighten
Tighten the clutch plate and hub assembly retaining
nut to 17 NSm (13 lb–ft).
10. Spin the pulley rotor by hand to verify that the
pulley is not rubbing the clutch drive plate.

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DAEWOO NUBIRA 2004 Service Repair Manual 7B – 40IMANUAL CONTROL HEATING, VENTILATION AND AIR CONDITIONING SYSTEM
DAEWOO V–121 BL4
11. Remove the compressor from the bench vise and
remove the J–34992 compressor holding fixture
from the

Page 2043 of 2643

DAEWOO NUBIRA 2004 Service Repair Manual MANUAL CONTROL HEATING, VENTILATION AND AIR CONDITIONING SYSTEM 7B – 41
DAEWOO V–121 BL4
Notice : The rotor hub must be properly supported to pre-
vent damage to the pulley rotor during bearing r

Page 2044 of 2643

DAEWOO NUBIRA 2004 Service Repair Manual 7B – 42IMANUAL CONTROL HEATING, VENTILATION AND AIR CONDITIONING SYSTEM
DAEWOO V–121 BL4
5. With the compressor mounted to the holding fixture
J–34992, position the rotor and bearing assembly
o

7B – 42IMANUAL CONTROL HEATING, VENTILATION AND AIR CONDITIONING SYSTEM
DAEWOO V–121 BL4
5. With the compressor mounted to the holding fixture
J–34992, position the rotor and bearing assembly
on the compressor housing.
6. Position the pulley rotor and bearing installer
J–33017 and the puller pilot J–33023–A directly
over the inner race of the bearing.
7. Position the puller crossbar J–8433–1 center forc-
ing bolt on the puller pilot J–33023–A and assemble
the two through–bolts and the washers through the
slots on the puller crossbar J–8433–1. Thread the
through–bolts into the holding fixture J–34992. The
thread of the through–bolts should engage the full
thickness of the fixture.
8. Tighten the center forcing screw J–8433–3 in the
puller crossbar J–8433–1 to force the pulley rotor
and bearing assembly onto the compressor hous-
ing.
9. Install the rotor and bearing assembly retainer ring
using the snap ring pliers J–6083.
10. Reinstall the clutch drive plate and hub assembly.
Refer to ”Clutch Plate and Hub Assembly” in this
section.
11. Install the compressor. Refer to ”Compressor” in
this section.
12. Connect the negative battery cable.
13. Evacuate and recharge the A/C system. Refer to
”Discharging, Adding Oil, Evacuating, and Charging
Procedures for A/C System” in this section.
CLUTCH COIL
Tools Required
J–8433–1 Puller Crossbar
J–8433–3 Forcing Screw
J–33023–A Puller Pilot
J–33024 Clutch Coil Installer Adapter
J–33025 Clutch Coil Puller Legs
J–34992 Compressor Holding Fixture
Removal Procedure
1. Disconnect the negative battery cable.
2. Recover the refrigerant. Refer to ”Discharging,
Adding Oil, Evacuating, and Charging Procedures
for A/C System” in this section.
3. Remove the compressor. Refer to ”Compressor” in
this section.
4. Remove the clutch plate and hub assembly. Refer
to ”Clutch Plate and Hub Assembly” in this section.
5. Remove the clutch rotor and bearing. Refer to
”Clutch Rotor and Bearing” in this section.
6. Mark the clutch coil terminal location on the com-
pressor housing.
7. Install the puller pilot J–33023–A on the compres-
sor housing. Also install the puller cross bar
J–8433–1 with the clutch coil puller legs J–33025.
8. Tighten the forcing screw J–8433–3 against the
puller pilot J–33023–A to remove the clutch coil.

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DAEWOO NUBIRA 2004 Service Repair Manual MANUAL CONTROL HEATING, VENTILATION AND AIR CONDITIONING SYSTEM 7B – 43
DAEWOO V–121 BL4
Installation Procedure
1. Place the clutch coil installer adapter J–33024 over
the internal opening of

Page 2046 of 2643

DAEWOO NUBIRA 2004 Service Repair Manual 7B – 44IMANUAL CONTROL HEATING, VENTILATION AND AIR CONDITIONING SYSTEM
DAEWOO V–121 BL4
SHAFT SEAL REPLACEMENT
Tools Required
J–5403 Snap Ring Pliers
J–9553–1 O–Ring Remover
J–23128–A

7B – 44IMANUAL CONTROL HEATING, VENTILATION AND AIR CONDITIONING SYSTEM
DAEWOO V–121 BL4
SHAFT SEAL REPLACEMENT
Tools Required
J–5403 Snap Ring Pliers
J–9553–1 O–Ring Remover
J–23128–A Seal Seat Remover/Installer
J–33011 O–Ring Installer
J–34614 Shaft Seal Protector
Important : A shaft seal should not be replaced because
a small amount of oil is found on the adjacent surface. The
seal is designed to leak some oil for lubrication purposes.
A shaft seal should be changed only when a large amount
of sprayed oil is found and then only after actual refrigerant
leakage is found by using an approved leak detection pro-
cedure. Refer to ”Leak Testing the Refrigerant System” in
this section.
Should a compressor shaft seal ever have to be replaced,
the receiver–dryer in this system must also be removed
from the vehicle. The oil in the receiver–dryer must then
be drained, measured and replaced. Refer to ”Discharg-
ing, Adding Oil, Evacuating, and Charging Procedures for
A/C System” in this section.
Removal Procedure
1. Disconnect the negative battery cable.
2. Recover the refrigerant. Refer to ”Discharging, Add-
ing Oil, Evacuating, and Charging Procedures for
A/C System” in this section.
3. Loosen and reposition the compressor in the
mounting brackets.
4. Remove the clutch drive plate and hub assembly
from the compressor. Refer to ”Clutch Plate and
Hub Assembly” in this section.
5. Use the snap ring pliers J–5403 to remove the shaft
seal retaining ring.
Notice : Any dirt or foreign material that enters the com-
pressor may cause damage.
6. Thoroughly clean the inside of the compressor
housing area surrounding the shaft, the exposed
portion of the seal, the shaft itself, and the O–ring
groove.
7. Fully engage the knurled tangs of the seal seat re-
mover/installer J–23128–A into the recessed por-
tion of the seal by turning the handle clockwise.
Remove and discard the seal from the compressor
with a rotating–pulling motion. The handle should
be hand–tightened securely. Do not use a wrench
or pliers to tighten the handle.

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DAEWOO NUBIRA 2004 Service Repair Manual MANUAL CONTROL HEATING, VENTILATION AND AIR CONDITIONING SYSTEM 7B – 45
DAEWOO V–121 BL4
8. Remove and discard the O–ring from the compres-
sor neck using the O–ring remover J–9553–1.
9.

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DAEWOO NUBIRA 2004 Service Repair Manual 7B – 46IMANUAL CONTROL HEATING, VENTILATION AND AIR CONDITIONING SYSTEM
DAEWOO V–121 BL4
5. Use the snap ring pliers J–5403 to install the shaft
seal retaining ring with its flat side against t

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