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OPTIMUM
M A S C H I N E N - G E R M A N Y
4.2
Safety
The milling machine must only be operated under the following conditions:
The milling machine is in proper working order.
The milling machine is used as intended.
The operating instructions are followed.
All safety devices are installed and activated.
Eliminate or have all malfunctions rectified promptly. Stop the milling machine immediately in
the event of any abnormality in operation and make sure it cannot be started up accidentally or
without authorisation.
"For your own safety during operation" on page 16
4.3
Switching the milling machine on
Switch on the master switch.
Unlock the emergency stop button.
Set and close the spindle protection.
INFORMATION
The machine cannot be started, if the spindle protection is not closed and the locking
pin of integrated drill drift is in drifting position.
4.4
Switching the milling machine off
Switch off the master switch.
"Switching-off and securing the milling machine" on page 16
CAUTION!
Only press the emergency-stop button in a genuine emergency. You should not use the
emergency-stop button to stop the machine during normal operation.
4.5
Resetting an emergency stop situation
Unlock the emergency stop switch again.
Switch on the spindle rotation again.
4.6
Power failure, Restoring readiness for operation
Switch on the spindle rotation again.
4.7
Speed setting
A speed change at the MH50G is done by inserting of gear stages and stage selection of the
drive motor.
A speed change at the MH50V is continuously adjustable within the gear stage engaged with
the rotary knob on the control panel.
4.7.1 Selecting the speed
The correct speed is an important factor for milling. The speed determines the cutting speed by
which the cutting edges cut the material. The service life of the tool can be increased and the
working result optimized by selecting the correct cutting speed.
The ideal cutting speed basically depends on the workpiece and the tool material. Higher
speeds are possible with tools (mills) made from hard metal or cutting ceramics than with tools
made from high-alloy high speed steel (HSS). You will achieve the ideal cutting speed by se-
lecting the correct rotation speed by hand.
GB
MH50G│MH50V
Page 34
Translation of the original instructions
Version 1.0.1 dated 2017-08-10
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