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11. Tighten the center screw on the puller against
the shaft of the compressor to remove the pul-
ley.
12. Clean the pulley and pulley bearing with sol-
vent. Inspect the assembly for damage. Check
the bearing for brinneling, excessive looseness,
noise, and lubricant leakage. Replace the
assembly if any of these warning signs are evi-
dent.
Clutch Coil Check
13. Use a multi-meter to ohm check the clutch coil.
The resistance should be as follows:
12 ± 0.37 ohms @ 20° C (68° F)
16.1 ± 0.62 ohms @ 115° C (239° F)
If the resistance of the coil is not within the specifica-
tions, the clutch will not operate properly. Remove
the retaining ring and replace the coil.
Pulley Installation
FIGURE 4-24.
1. Bearing Installer
1. Place the pulley assembly into position on the
compressor. Use bearing installer (1, Figure 4-
24), universal handle (2), and a hammer to
lightly tap the pulley assembly onto the com-
pressor until it seats. Use of the installer or the
equivalent ensures that the force driving the
bearing into position acts on the inner race of
the bearing. Applying force to the outer race of
the bearing will result in bearing damage.
N04031 10/06
2. Universal Handle
Operator Comfort
2. Ensure the pulley rotates freely. If the pulley
does not rotate freely, remove the pulley and
check for damaged components. Replace any
damaged components and reinstall the pulley.
3. Install the pulley retainer ring and ensure that
the ring is properly seated.
4. Install the absorbent sleeve into the neck of the
compressor. Install the sleeve retainer.
Clutch Assembly Installation
1. Insert square key (1, Figure 4-20) into the key-
way in the clutch hub. Allow the key to protrude
about 4.5 mm (0.18 in.) from the outer edge of
the hub. Use petroleum jelly to hold the key in
place.
FIGURE 4-25.
1. Drive Plate Installer
2. Place the clutch assembly into position on the
compressor. Align the square key with the key-
way on the shaft.
3. Thread drive plate installer (1, Figure 4-24) onto
the shaft of the compressor. Spacer (2) should
be in place under the hex nut on the tool.
2. Spacer
N4-33
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