GRAVOGRAPH M20 - Page 59

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M_M20 series_EN_C
Preventive maintenance
Thezeropointmustbelocatedatthemid-pointofthewidthalongXofthereferencering(6mm
(0.236 in)):
- engrave O with a height of 4 mm (0.157 in) on the ring with the diamond tip.
- visuallycheckthatthemarginaboveandbelowtheengraved"O"isthesame(1mm
(0.039in)).Ifnot,movethediamondtipalongtheXaxiswiththekeys:Leftarrow-Right
arrow.
- perform another engraving for veri󰘰cation Use the arrows to rotate the ring to avoid
engravingoverthetopofthe󰘰rstO(Up-Downarrows)
8. SetthezeropointintheYaxisofthemachineusingthefollowingkeys:Up-Downarrows.
Checkthatthepositioningaidarrowonthechuckisperfectlyverticalandpointingdownwards.
9. StorethepositionoftheXYzeropointbypressingthe"Check"keyfor3seconds.Themachine
emits an audible signal.
The diamond tip returns to the origin.
• Adjusting the machine in Z
1. Presssimultaneouslyonthe2keys:Pause-Z.
Thediamondholdermovestothezeropoint.
2. Bring the diamond tip into contact with the reference ring.
3. Storethepositionofthe Zzeropointby pressingthe"Check"key for3seconds.The machine
emits an audible signal.
The diamond tip returns to the origin.