Lexmark 4059-XXX - Manual (Page 99)

Diagnostic Information 2-72
4059-XXX
Excessive Noise or Vibration
FRU Action
1 Motor Plate Assembly Be sure the motor plate assembly
screws are tight. Be sure the motor
mounting screws are tight.
2 Motor Drive Belt Check the belt to be sure it is not too
tight. The motor can be adjusted
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.