Eibenstock EHB 32 Originalbetriebsanleitung Seite 18

Mode of Action of Torque Adjustment
As well as with the speed adjustment position "I" means minimum and "IIIII"
maximum. Position "I" is 1.4 times and position "IIIII" is equal to the 2.8
times of the rated torque.
Changing Gears
The machine is equipped with a mechanical two-speed gearbox.
Select the required speed by pressing-in, shifting and engaging. The
position of the lower speed is in direction of the working spindle. Change
the speed only when the machine is not running, and support the speed-
changing by slightly rotating the work spindle.
Overload Protection
In order to protect the operator, the motor and the drill bit are equipped with
a mechanical, electronic and thermal overload protection.
Mechanical: If the drill bit is suddenly blocked in the hole, a clutch will
slip disengaging the bit from the motor.
Electronic: In case of overload due to too large feed force, the
electronic will cut OFF the machine. After discharge and
switching ON you can continue drilling again.
Thermal: By means of a thermal element, in case of continuous
overload, the motor is protected against destruction. In fact,
the machine switches OFF automatically and only can be
switched ON again after a certain cooling period (about 2
minutes). This cooling period depends on the warming of
the motor winding and ambient temperature.
18
Mnom: 79/26 Nm