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WARNING!
Risk by using improper tool holders or operating them at inadmissible speeds.
Only use the tool holders (e.g. drill chuck) which were delivered with the machine or
which are offered as optional equipment by OPTIMUM.
Only use tool holders in the intended admissible speed range.
Tool holders may only be modified in compliance with the recommendation of OPTI-
MUM or of the manufacturer of the clamping devices.
WARNING!
When first commissioning the geared drill by inexperienced staff you endanger people
and the machine.
We do not accept any liability for damages caused by incorrectly performed
commissioning.
„Qualification of personnel" auf Seite 76
3.5.1
Warming up the machine
ATTENTION!
If the geared drill and in particular the drilling spindle is immediately operated at
maximum load when it is cold it may result in damages.
If the machine is cold, e.g. directly after having transported the machine, it should be warmed
up at a spindle speed of only 500 1/min for the first 30 minutes.
3.5.2
Power supply
Connect the electrical supply cable.
Check the fusing (fuse) of your electrical supply according to the technical instructions
regarding the total connected power of the geared drill.
ATTENTION!
Imperatively make sure that all 3 phases ( L1, L2, L3) are correctly connected.
Most motor defects result of wrong connections. For instance if a motor phase is not
correctly clamped or connected to the neutral conductor (N)
Effects may be as follows:
The motor is getting hot very rapidly.
Increased motor noises.
The motor has no power.
ATTENTION!
Make sure that the direction of rotation of the drive motor is correct. The switch position
of the rotation selector switch for right-handed rotation (R) has to turn the drill spindle
clockwise. If necessary, exchange two phase connections. The guarantee will become
null and void if the machine is connected incorrectly.
EN
DH26GT | DH28GS | DH32GS
94
Translation of original instruction
.
Version 1.2.9 - 2021-09-28
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