BM-20 plus
BM-
20 plus Operator’s Manual
11
Fig. 4.
Machine correctly put on the workpiece
Set the power switch to ‘I’ and press the green START button to start the motor.
Move the machine to the plate and bevel by moving the machine to the left.
Constantly press the machine to the plate.
Beveling is done according to the counter-rotation. The rotation direction of the
milling cutters is marked on the motor disk under the cover of the milling cutters.
The feed rate depends on the profile and composition of the workpiece.
Most steels capable of being welded can be beveled in one pass. However,
make bevels wider than 12 mm (1/2
″) in at least two passes. This will require less
effort and time than if you bevel in a single pass.
To get the maximum bevel width (21 mm, 13/16
″) in two passes, make the first
bevel width of about 14 mm (9/16
″). For three passes, make the first bevel width of
about 12 mm (1/2
″) and the second of about 16 mm (5/8″).
If an overload occurs because of, for example, too fast feed, the red overload
lamp comes on. If you continue work in such a case, the motor stops. Then, move
the machine away from the plate
and set the power switch to ‘O’ to turn off the
power. Next, wait until the overload lamp comes off, and turn on the power again.
You can work near the overload (when the red lamp flashes), but do not let the
motor temperature increase more than 85°C (185°F). This can lead to damage of the
motor windings. After each hour of work under full load, stop the motor for 10
–
15 minutes. Do not try to decrease the motor temperature by working without load.
The motor will then get hotter than when working with load.
Feed direction
Power switch
START
Slide toward after starting the motor
STO
P
