7 Programmed maintenance
HSD S.p.A. © - 0107h00a.fm100713
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7.1.2 Protection of the tool holder seat
The tool holder seat must always be protected from the intrusion of impurities, which could soil,
oxidise, or in any way degrade the contact surfaces: never leave the electrospindle without a tool
holder cone inserted.
Never direct a jet of
compressed air in the zone of
the pressurised labyrinth seal,
in that any infiltration would
damage the interior of the
electrospindle.
Do not direct a jet of
compressed air inside the
electrospindle when the tool
holder is not coupled, as this
could dirt the mating surface
with the tool holder or cause
machining residues to enter the
electrospindle itself.
1 Coupling surface
2 Labyrinth seal
The cone used for protection must not have through holes.
To avoid sticking, remove the tool holder in the electrospindle both after any
heavy work as well as at the end of the working day, and replace it with a clean
tool holder at room temperature to protect the interior of the electrospindle from
the external environment.
The tool holder to be removed may be hot! Use gloves!
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