– 33 –
Furthermore, observe the correct sense of
rotation of the milling tool. To check it, look
through the workpiece feed-in opening: the
tool must rotate anti-clockwise. If it does
not, disconnect the connecting cable and
change 2 phases in the socket
(for example L1 and L2).
2.4 Dust extractor connection
The tenon cutting machine is intended for
operation without dust extraction as well as
for connection to an in-plant dust extractor
system. To this end, it has 2 connection
nozzles of 100 mm (3 15/16 in.) diameter
each (no. 3 - Fig. 2).
In case of operation in closed rooms, the
machine must be connected to a dust ex-
tractor system that allows for air speeds of
no less than 20 m/s (65.6 ft/s) at both
connection nozzles. The resulting vacuum
amounts to 258 Pa. Flame retardant, fle-
xible extraction hoses must be used whose
cross-section up to the point of junction
must be at least equal to that of the
connection nozzles. After the junction, the
cross-section of the hose must be at least
140 mm (5 1/2 in.).
For outdoor operation or working briefly in
closed rooms, the machine can be retrofit-
ted so that the chips fall beneath it. To this
end, the screws provided on both sides
(no. 5 - Fig. 4) are loosened, and the shut-
ters (no. 4 - Fig. 4) are opened. Retighten
the screws afterwards.
3
Operation
3.1 Initial startup
– These Operating Instructions must be
made known to all individuals commis-
sioned to operate the machine. In parti-
cular, their attention must be drawn to
the section "Safety information".
– You must check that all protection devi-
ces have been installed and are operati-
ve.
– When operated in closed rooms, the ma-
chine must be connected to an in-plant
dust extractor system, and the air speeds
at the connection nozzles must be at
least 20 m/s (65.6 ft/s). The resulting va-
cuum amounts to 258 Pa. Furthermore,
ensure that the dust extractor system is
automatically activated when the machi-
ne is switched on.
– The air speed must be checked on initial
commissioning and after significant modi-
fications.
– The suction devices must be checked
prior to initial commissioning, daily for
obvious defects and monthly for their ef-
fectiveness.
– Ensure that the individual reversible kni-
fes of the milling tool are tightened cor-
rectly, and that the tool is fastened safely
on the drive shaft. (See the section "Tool
change" for the tightening torques.)
– With the machine idling, check the milling
tool for correct sense of rotation (see
section "Electrical connection").
3.2 Switchgear
All setting elements of the electrical switch-
gear of the machine are provided in the
control cabinet at the operator station (see
Fig. 5). The individual switches shown in
Fig. 5 have the following functions:
6: Main switch: Disconnects the entire el-
ectrical equipment from the mains. In
position 0, it can be secured with a
padlock. It has 2 switch positions:
:
0: off (machine disconnected from the
mains).
Never reach into the running ma-
chine via the open shutters,
for example to removed a buildup
of chips. Danger of touching the
running milling tool!
Before initial startup of the tenon
cutting machine, it is imperative
that you observe the following no-
tes:
