22 Manual BBB4_ENG_01_2016_991301
RemovalofBBB4withTaper-GripBushing
Beforestartingunitremovalprocess,ensurethatelectricalpowertounithas
been safely locked out and that electrical connections to the unit have been
disconnected.
1
Externally support the BBB4 unit such that all unit weight is removed from the driven
shaft.
The weight of the BBB4 must be externally supported throughout the entire
removal process.
Do not raise the unit too high. Shaft binding may occur.
2
Remove safety guard from unit. Inspect the Taper-Grip bushing to ensure that a gap
exists between the thrust collar and the bushing flange.
3
Apply a liquid-penetrant onto each of the Taper-Grip bushing socket-head cap
screws. Allow time for the penetrant to settle into the threads of the screws.
4
Afterthepenetranthassettled,removethesocketheadcapscrewsoneatatime.
Removal from Driven Shaft
RemovalofBBB4withTaper-GripBushing
BushingFlange
Thrust Collar
FeelerGauge