Translation of the original operating manual
Drive units for flexible shafts
- 17 -
GB
The flexible shaft is now connected to the drive unit.
Releasing the flexible shaft:
Secure the motor spindle with the retention pin
through the hole (5).
Depress blocking spring (8) with the retention pin.
Pull the hose bush (7) out of the motor flange (6).
Secure the shaft coupling (1) with the retention
pin through the hole (3) and rotate the shaft
coupling with the retention pin from the motor
spindle.
Handling
Switching On and Off
Risk of injury!
Avoid inadvertent starting: always
switch the machine off when the plug is
pulled out of the plug socket or if there
has been an interruption in the power
supply.
Risk of injury!
Before
switching
on,
hold
the
handpiece with clamped tool firmly in
your hand!
Risk of injury!
The shaft continues to run on after the
unit has been switched off.
Only set the tool down when the
spindle has stopped!
Plug in the mains plug before switching on.
MB 20/2 and MB 20/3
To start the machine, slide the ON switch (1)
towards the shaft connection until it locks (see
Fig. 6).
To unlock it, press the rear section of the switch
to switch the machine off.
Fig. 6
Switching on/off MB 20/2
MB 30 E
To start the machine, push the rocker switch on
the back of the machine to the "I" position.
Push the rocker switch (1) to the "0" position to
switch off.
Fig. 7
Switching on/off MB 30 E
Protection against overload!
The MB 30 E has a protection against
overload. It is possible to start the drive
unite immediately after the overload.
For recommissioning switch the drive
unite off and on again within 2
seconds.
Selecting the Speed
Attention!
An overspeed can cause vibrations and
lead to damage to the tool and shaft!
Tool damage!
When adjusting the speed, observe the
max.
permissible
working
speed
specified by the tool manufacturer!
Use only tools in the permissible speed
range of the machine.
The working speed necessary is dependent on the blade
diameter and the required cutting speed (according to the
type of tool application). The graph contains the relevant
set of characteristic curves (see Fig. 8).
Proceed as follows to determine what you need:
Starting from the blade diameter [mm] draw a
vertical line to the intersection with the
characteristic curve of the required cutting speed
[m/min].
Read the necessary working speed [rpm] on the
left-hand axis by drawing a horizontal line to it
from the intersection.
OFF
ON
OFF
ON
