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OBJ_BUCH-0000000103-002.book Page 14 Thursday, July 24, 2014 11:49 AM
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Activating and deactivating the cool-
ant-lubricant flow (figure 8).
To activate the cooling-lubricant flow,
turn the switch to the position shown.
The coolant level can be checked in the
groove of the drilling shaft.
Switch the coolant lubricant flow off as soon
as the level is slightly below the opening.
The coolant in the drilling shaft is sufficient for
one drilling operation.
Prior to the next drilling operation, activate
and deactivate the coolant lubricant flow as
described.
When working overhead, deactivate
the cooling-lubricant flow. Turn the
switch to the position shown.
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