6.6.3 Screwed con nec tions
With vi brat ing ma chines, it is im por tant to check the screwed
con nec tions for tight ness at reg u lar in ter vals. Ob serve tight en -
ing torques.
6.6.4 Chang ing rub ber buff ers
In spect the rub ber buff ers for cracks and chip ping as well as
tight ness and im me di ately re place if dam aged.
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6. Main ten an ce