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the cutting speed of different materials can be found in so-called material tables for the metal
trade.
Turn the feed shaft counter clockwise to move down the spindle to the workpiece. The spindle is
moved back into its starting position by spring force.
Always start drilling at low rpm and increase rpm slowly. Pay attention to the chip formation and
avoid excessive friction heat.
15.7.3 Coolant
Use as a coolant a water-soluble, environmentally friendly emulsion, as it is
available from specialist retailers. Make sure that the coolant is reabsorbed,
as well as to ensure environmentally disposal refer to manufacturer's
instructions!
Due to friction heat at the tool cutting edge the tool should be cooled when drilling. This will give
you a better work result and a longer life of the tools.
CLEANING, MAINTENANCE, STORAGE, DISPOSAL
16.1 Cleaning
The use of solvents, aggressive chemicals or abrasives can lead to damage to
paintwork and other property on the machine!
As a result, regular cleaning is a prerequisite for the safe operation of the machine as well as a
long lifespan of the machine. Therefore, clean the device after each bet, but at least once a week.
To remove the chips, use a brush, a hand broom or a suitable vacuum cleaner.
16.2 Maintenance
Danger due to electrical voltage! Always disconnect the machine from the power
supply before servicing or maintenance work and secure it against accidentally re-
activation!
It is up to your specialist retailer to eliminate defects. Repair work may only be
carried out by specialist personnel.
The machine does not require extensive maintenance
Malfunctions or defects that are likely to impair your safety must be rectified immediately!
16.2.1 Maintenanceplan
Wear of machine depends strongly on operation condition. The following intervals are valid when
using the machine within the operation limits
Interval
Component
Before each
machine
usage
Weekly
Drill head
Drill head and gear
Monthly
rack
HOLZMANN MASCHINEN GmbH www.holzmann-maschinen.at
CLEANING, MAINTENANCE, STORAGE, DISPOSAL
N O T I C E
N O T I C E
W A R N I N G
N O T I C E
and only a few parts require maintenance.
Activity
Check safety devices and cleaning machine if
necessary
Lubricate spindle gear (oil or light grease)
Lubricate column
Lubricate gear rack
28
GBM25; GMB25T
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