Agilent Technologies U1840A Medalist sj5000 Hardware Manual page 180

12
Maintenance
N O T E
12-4
• Ensure that the bearings are free from dust, loose particles
and moisture.
• Ensure that the magnetic platens are free from debris.
• Visually examine the encoders on each axis to ensure that
there are no scratches, grease, or dirt. To remove any grease
or dirt, use a very fine lint-free cloth.
• Take care not to scratch the XY table, as this will greatly
affect the its accuracy.
• Check that the small home marker contacts and end limits
are intact. Ensure that they are free from dirt and grease.
• Power up the machine. Check the function of the conveyor
sensors (see Figure
them. Look at the indicator light on each of the sensors.
• Move the lighting head over each sensor and make sure they
are not activated by it.
• Check the soundness of all motor housings.
• Wipe off edge belts with 409 spray cleaner (recommended).
Alternatively, use alcohol.
• Open the front access door. Turn the MAINT. SWITCH to the on
position. From the Maintenance window, operate the stops
and clamps for each rail to ensure they move without
obstruction.
NEVER clean the conveyor with a compressed air stream. It may cause
dirt or other particles to get lodged in the motor shaft. Use a vacuum
cleaner to remove loose dust or dirt.
NEVER disassemble the motors.
12-2) by placing a sample board over
Agilent U1840A Medalist sj5000 Hardware Manual