Drive Mounting; Belt Pulley Diameter - Duerkopp Adler 271 Installation Instructions Manual

4.3 Drive Mounting

4.4 Number of Stitches dependent on the Belt Pulley Diameter
Number of Stitches for 3-phase Drives
Stitches/min
3800
4000
4200
4500
4800
5000
5500
Direct current drives reach much higher rpm than 3-phase drives. Therefore a smaller
belt pulley diameter is to be chosen here.
As a rule of thumb:
Belt pulley diameter for alternating current drives minus 30% gives the suitable
diameter for direct current sewing drives.
The motor revolutions can also be regulated at the control panel.See motor operation
instructions.
8
–
Fasten the drive with its foot to the underside of the
table. Hereto screw the 3 hexagon head screws,
M8x35, into the nuts 4 (see table dimension sketch).
–
With the ground cable 2 found in the drive package
make a connection between the motor foot and the
underside of the machine.
–
Here fasten the cable eye with a M4 screw to the
threaded hole in the motor foot.
–
Lead the cable through the oil baffle and attach the
flat plug 1 to the connector strip as shown in the
illustration.
–
The ground cable serves to conduct the static charge
on the machine head to ground via the motor.
–
Fasten the V-belt pulley to the motor shaft.
–
Check the arrangement of the connections on the
sewing drive transformer and correct appropriate to
the available mains voltage, if necessary. See
enclosed circuit diagram.
50 Hz
80 mm
85 mm
90 mm
95 mm
100 mm
106 mm
112 mm
1
2
60 Hz
67 mm
71 mm
75 mm
80 mm
85 mm
90 mm
95 mm