OPERATI ON I N STRUCTI ON S
HOLZMANN Maschinen Austria
www.holzmann-maschinen.at
Seit e 3 3
Metalldrehmaschine / metal turning lathe ED 750 FDQ
1 5 .4 M anual t urning
Apron travel, cross travel, and top slide hand wheel can
be operated for longitudinal or cross feeding. (Fig.7)
1 5 .5 Longit udinal t urning w it h aut o- feed
Set the selector knob (A, Fig.8) to select the feed direc-
tion and feed speed. Only available on CQ6125V models.
Use the table (B, Fig.8) on the lathe for selecting the feed
speed or the thread pitch, Adjust the change gear if the
required feed or thread pitch cannot be obtained with the
installed gear set.
1 5 .6 Change gears replacem ent
10.
Disconnect the machine from the power source.
11.
Unscrew the two fastening screws and remove the
protective cover.
12.
Loosen the locking screw (C, Fig.8) on the quadrant.
13.
Swing the quadrant (D, Fig.8) to the right.
14.
Unscrew the bolt (E, Fig.8) from the leadscrew or the
square bolts (F, Fig.8) from the quadrant bolts in or-
der to remove the change gears from the front.
15.
Install the gear couples according to the thread and
feed table (Fig.9) and screw the gearwheels onto the
quadrant again.
16.
Swing the quadrant to the left until the gearwheels
have engaged again.
17.
Readjust gear backlash by inserting a normal sheet
of paper as an adjusting or distance aid between the
gearwheels.
18.
Immobilize the quadrant with the locking screw.
19.
Install the protective cover of the headstock and re-
connect the machine to the power supply.
Fig.7
Fig.8
Fig. 6
Fig. 9
Fig. 8
Fig. 7
