A SERVICE OF

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Diagnostic Information 2-72
4059-XXX
Excessive Noise or Vibration
FRU Action
1 Motor Plate Assembly Be sure the motor plate assembly
screwsaretight.Besurethemotor
mounting screws are tight.
2 Motor Drive Belt Check the belt to be sure it is not too
tight.Themotorcanbeadjusted
while the motor is running for
minimum belt noise and optimum
performance.
Note: If the belt is too tight a high
pitch noise results.
3 Lead Screw Bearings If the bearings are worn or defective
the lead screw may “wobble”. Be
sure the bearings and leadscrew are
operating properly with no binds.
4 Idler Pulley Be sure the idler pulley is not
binding, worn or broken.