DISCO DAD 2H/6T, Troubleshooting Manual

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D-1
891110
D. MAINTENANCE
1. Maintenance and Inspection
1) Be sure to wipe off water that has been sprinkled on the chuck table and operating panel after every use of
the machine.
2) Remove wafer chips accumulated around the scupper of the water tray.
3) Do not place tools and the like on the stainless waterproof cover in order to prevent the cover from being
scratched.
4) Open and close the main body cover gently to protect it from impact damage.
5) Care should be taken not to scratch the surface of the wheel mount fitted into the front end of the spindle.
6) Replace the carbon brushes by loosening the screws at the rear of the spindle. After replacing the brushes
use a volt ohm meter to check the conductor rate between the main body and the front end of the spindle.
7) The chuck table is provided with grooves and holes for better suction effect. Since vacuum is not obtainted
if these are clogged with chips, they should be cleaned from time to time.
8) The timing belt for driving X axis should be inspected for scratches or cracks from time to time.
9) The mist separator should be checked monthly. When the felt inside the mist separator becomes dirty, it
should be replaced.
10) If this machine is left unused for a long time, wipe off water on each part of the equipment and place a
vinyl cover over it. (Under favorable circumstances, a vinyl cover is not necessary.)