Sewing - Duerkopp Adler 69 Operating Instructions Manual

7.

Sewing

This description is based on the following assumptions:
–
the machine in question is a special sewing machine with thread clipper
(subclass 69-FA-373) and the following optional extras:
- RAP 14-1 electro-pneumatic bar-tack and sewing-foot-raising mechanism,
pedal-operated
- HP 11-1 pneumatic rapid stroke-adjustment mechanism, operated by a knee lever
–
The following functions are set at the operating panel:
starting bar tack:
ending bar tack:
sewing-foot position before and after clipping:
–
The main switch is on.
–
The last sewing operation was concluded with an ending bar tack and thread
clipping.
Operating and function sequence for sewing:
sewing operation
Before starting sewing
starting position
position material at start of
seam
At start of seam
sew starting bar tack and
continue sewing
sew only starting bar tack
do not sew starting bar tack
32
ON
ON
DOWN
operation / explanation
- pedal in neutral position
the machine is at a standstill
needle up - sewing feet down
- move pedal back and hold it there
the sewing feet rise
- place material under the needle
- release the pedal
the sewing feet lower onto the material
- move pedal forward and hold it there
starting bar tack is sewn
the machine then continues sewing at the
motor speed set by the pedal
- move pedal briefly forwards
the machine stops after sewing the
starting bar tack in the needle-down position
- press "F" button (suppress starting bar tack)
- move pedal forward and hold it there
the machine then sews at the
motor speed set by the pedal
- the next seam is begun with a starting bar tack