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Operation & Maintenance Manual
Cyclo® BBB4
Cyclo® BBB4
2
Apply a liquid penetrant to the shaft where it contacts the keyed hollow bore .
Allow time for the liquid to penetrate between the shaft and the wall of the keyed
hollow bore .
3
Once the penetrant has settled adequately, carefully remove the Cyclo® BBB4 from
the driven shaft .
Removal of Cyclo® BBB4 with Shrink Disc
Before starting unit removal process, ensure that electrical power to unit has
been safely locked out and that electrical connections to the unit have been
disconnected .
1
Remove the safety cover and apply liquid penetrant to the shrink disc bolts and
shaft/bore allowing adequate time for proper penetration .
Loosen the locking bolts on the shrink disc .
Complete bolt removal should not be required .
Tapping the shrink disc flanges with a rubber dead blow hammer may be required if
any fretting corrosion has occurred .
2
Remove the gearbox from the shaft .
If shaft removal is difficult, a jig such as the one shown in the Removal of Cyclo®
BBB4 with Taper-Grip® Bushing section may be used to ease the removal process .
Sumitomo does not supply the removal jig . This information is supplied for
reference only .
Removal from Driven Shaft
Removal of Cyclo® BBB4 with Shrink Disc
