DISCO DAD 2H/6T, Troubleshooting Manual

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G-1
G. REGULAR INSPECTIONS
1. Daily Inspection, Maintenance and Adjustment
(1) Point to be checked before turning on the Power
1) The air pressure is 5.0kgf/cm
2
G-71 P.S.I. or more.
2) There is no foreign matter in the hose.
3) Does the air spindle shaft revolve freely ?
4) Is the flange not marked with cutlery tooth, scratched, or contaminated ?
5) That the chuck table is not contaminated or scratched.
6) There is no hit mark, contamination, dust or rust between the chuck table and rotary disk.
7) Is 90
°
revolving operation smoothly performed ?
8) Did the present operator receive sufficient information on the current situation of the machine from the
preceding operator ?
(2) Points to be checked after turning on the Power
1) Try and enter necessary data by number keys.
2) That Z-axis moves upward to the limit by EM operation.
3) (Not Assigned)
4) There is no back flow in the drainage hose.
5) There is no abnormal sound or vibration with SPINDLE switch turned on.
6) Is the nozzle cover set in parallel with the chuck table after setting-up operation ?
(3) Final Inspection after completion of operation
1) Remove the front wheel cover and clean the surface of the acrylic plate.
2) Remove the chuck table for cleaning off water and dust.
3) Clean the top surface of the rotary disk and make sure it is dry.
4) Clean the inside of the water case with a paper towel and blow it out using a compressed air nozzle.
5) Clean the strainer.
Caution: Before shutting down the equipment (and turning off air flow), run each spindle for 5-15 minutes
with the cutting water turned on; and 15-20 minutes with it off. (Do not turn off spindle coolant
water)
2. Weekly Inspection, Maintenance and Adjustment
(1) Points to be checked before turning on the Power
1) Ensure that the voltage is within the range of 3 phase AC 200V
±
10 %.
2) The air pressure 5.0kgf/cm
2
G-71 P.S.I.G or more.
3) The water pressure is 3kg/cm
2
-43 P.S.I. or more, or the water flow rate is 6.5 L/min-1.6 G.P.M. or more.
The difference in temperature between the inside and outside is 2
°
C or less.
4) There is no leakage inside or outside the main machine body.
5) Is there no electrical contact between the spindle shaft and main body.
6) (Not Assigned)
910810