When reassembling the bowl of the centrifuge, shown in the illustration, the alignment mark on the locking ring passes the bowl cover mark in excess of the manufacturer's specifications. This is due to __________. MO-0012

Correct Answer: Option C — excessive wear of the locking ring and/or bowl threads

Excessive travel of the locking ring past alignment marks during reassembly indicates material thinning or stretching. This mismatch stems from mechanical wear on the locking ring and/or bowl mating threads from repeated high-stress operations and maintenance cycles.