OPTIMUM
M A S C H I N E N - G E R M A N Y
Version 1.1.3 dated 2016-7-5
Page 29
Original operating instructions
BF46 Vario | BF46TC
GB
Operation mode thread cutting
In the thread cutting mode the engine automatically starts up according to a predefined path
over the drilling depth stop and automatically changes the turning direction as soon as the pre-
defined depth had been achieved. The screw-tap is drawn out of the workpiece.
Rotation direction switch
Standard operation, selection left-handed or right-handed rotation.
Potentiometer
Speed setting "VARIO"
Push button ON
The push button "ON"
switches on the rotation of the spindle.
Push button OFF
The push button "OFF“
switches off the rotation of the spindle.
Main switch
Interrupts or connects the power supply.
4.2
Switching on the drilling-milling machine
Switch on the main switch.
Close the protective equipment.
Select the operating mode.
Select the gear level.
Set the potentiometer to the lowest speed.
Actuate push button "Start".
Set the required speed on the potentiometer.
ATTENTION!
Wait until the drilling-milling machine has come to a complete halt before changing the
rotation direction using the rotation direction switch.
INFORMATION
At a cold drilling-milling machine it is possible that with switching on the machine an
overload of the drive occur.
Therefore, allow the drilling-milling machine at low speeds depending on environmental
conditions to warm up for 10 to 20 minutes before you go to maximum speed.
Also with a quick on and off, this overload occur. Therefore wait for about 3 seconds
before you switch on the drilling-milling machine again, the capacitors in the controller
must first discharged.
4.3
Switching off the drilling-milling machine
Press the push button spindle rotation "OFF". For a long-term standstill of the drilling-mill-
ing machine switch it off at the main switch.
