Mazak STX SC L PLUS CONTROL Training Manual page 51

1. HAS THE FOCUS LENS BEEN CONTAMINATED BY WATER OR OIL ?
( IF THE LENS HAS BEEN EXPOSED TO WATER OR OIL FROM ANY
SOURCE, INCLUDING CLEANING AGENTS, THE COATING MAY BE
DAMAGED EVEN THOUGH IT APPEARS OK. )
2. IS THE MATERIAL COMPOSITION AND SURFACE QUALITY ADEQUATE ?
3. IS THE MATERIAL TEMPERATURE TOO HIGH DUE TO CUTTING IN CLOSE
PROXIMITY TO A PREVIOUSLY CUT HOLE ?
4. ARE THE CUT CONDITIONS SUITABLE FOR THE PARTICULAR GEOMETRY ?
5. IS THE BRASS PROFILER RING EXTREMELY WORN ?
( CAN CAUSE INCONSISTENCY IN THE PROFILER UNIT )
6. IS THE ASSIST GAS PURITY SUFFICIENT ?
7. IS THE LASER GAS PURITY AND MIXING RATIO WITHIN SPECIFICATIONS ?
8. IS THE CHILLER TEMPERATURE CORRECT ? HAS THE CHILLER BEEN FLUSHED
REGULARLY ?
9. IS THE PURGE AIR SUPPLIED TO THE EXTERNAL OPTICS CLEAN ?
( IF FUMES FROM PAINT OR SOLVENTS ARE DRAWN INTO THE AIR
COMPRESSOR THE AIR BECOMES CONTAMINATED ).
10. IS THE AIR PRESSURE CONSTANT ON THE CHILLER REGULATOR ?
11. IS THE SECONDARY REGULATOR FOR THE OXYGEN SET AT 115 PSI. ?
( ONLY APPLIES WHEN THE OXYGEN IS CONNECTED TO THE O2 GAS-IN PORT )
12. WHEN WAS THE PHASE RETARDER LAST REPLACED ?
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