Gravotech M20 - Page 75

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M_M20 series V3_EN_C
Preventive maintenance
Outside engraving Inside engraving
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.
8. SetthezeropointintheXaxisofthemachineusingthefollowingkeys:Rightarrow-Leftarrow.
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.