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SERVICING THE MOTOR SHEAVE ASSEMBLY:
Figure 8-2 – MOTOR SHEAVE AND BUSHING
1. Disconnect, lockout and tagout power supply to the compressor package.
2. Lift/pivot compressor to loosen and remove belts.
3. Remove all screws from the bushing and insert one into the removal hole.
4. Tighten the screw evenly until the bushing comes off the hub – do not hammer.
5. Remove loosened bushing and sheave from the shaft, taking care not to damage the latter’s
surface.
6. When ready to reassemble components, place bushing in the sheave and align the holes.
7. Grease both screws (1), insert in the holes shown in (threads are cut in the sheave), and
tighten lightly.
8. Cleanse shaft surface and slide sheave/bushing assembly unto shaft. Make sure position the
motor sheave in alignment with its mating sheave on the compressor shaft; otherwise, v-belt
life will be compromised.
9. Once proper sheave alignment is achieved, tighten the screws to torque value listed on Fig 8-
3. Note that the bushing type is scribed on its body.
10. Knock the sleeve lightly with a drift, and retighten the screws.
Repeat this a few times
to
make sure the sleeve is firmly fixed in place.
11. Check the tightness of the screws from time to time.
12. Fill the extraction holes e.g. with grease to protect them against dirt.
Bushing Tightening
torque
Nm
1610 20
2012 31
Figure 8-3 – MOTOR SHEAVE/BUSHING FASTENER TORQUE
Summary of Contents for VS-11
Page 10: ...13 18 604 Page 9 Figure 1 2 PACKAGE OUTLINE AIR COOLED 300CGA804 A Ref Drawing Page 1 of 2...
Page 11: ...13 18 604 Page 10 Figure 1 3 PACKAGE OUTLINE AIR COOLED 300CGA804 A Ref Drawing Page 2 of 2...
Page 28: ...13 18 606 Page 27 Figure 4 1 ELECTRICAL ENCLOSURE HARDWARE 302CGA810 D Ref Drawing...
Page 31: ...13 18 606 Page 30 Figure 4 2 PIPING AND INSTRUMENTATION ILLUSTRATION 300CGB797 B Ref Drawing...
Page 67: ......