OPERATI ON I N STRUCTI ON S
HOLZMANN Maschinen Austria
www.holzmann-maschinen.at
Seit e 3 2
Metalldrehmaschine / metal turning lathe ED 750 FDQ
1 5 OPERATI ON I N STRUCTI ON S
N OTE:
Make sure the variable speed control switch is in zero
position in counter-clockwise direction before turning on the
lathe!
1 5 .1 Replacem ent of chuck
The head spindle holding fixture is cylindrical. Loose three set
screws and nuts (A, Fig.3, only two are shown) on the lathe
chuck flange to remove the chuck. Position the new chuck and
fix it using the same set screws and nuts.
1 5 .2 Tool set - up
Clamp the turning tool into the tool holder.
The tool must be clamped firmly. When turning, the tool has a
tendency to bend under the cutting force generated during
the chip formation. For best results, tool overhang should be
kept to a minimum of 3/8” or less.
The cutting angle is correct when the cutting edge is in line
with the center axis of the work piece. The correct height of
the tool can be achieved by comparing the tool point with the
point of the center mounted in the tailstock. If necessary, use
steel spacer shims under the tool to get the required height.
(Fig.4)
1 5 .3 Change speed
5.
Unscrew the two fastening screws (B, Fig.5) and remove
the protective cover.
6.
Adjust the V-belt into the corresponding position.
7.
Tighten the tension pulley and fasten the nut again.
ATTEN TI ON :
Make sure the tension of the V-belt is correct.
Excessive or insufficient tension can cause damage.
Fig.3
Fig.4
Fig.5
Fig.6
Fig. 3
Fig. 4
Fig. 5
