Pfaff hobbylock 783 - Adjusting the Left Overedge Looper

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Adjusting the left overedge
looper
Loosen left looper screw 1 and
set a clearance of 2.1 mm be-
tween looper 2 and needle
plate 3 (see Fig. 40) Tighten
looper screw 1 again.
Remove needle plate and needle
guard complete. Loosen screws
of left looper lever 5 (Fig.
42) and set a clearance of 0
to 0.1 mm between point of
looper 2 and right needle 4.
Tighten screw 5 again. Loosen
clamp screw of needle bar and
turn it slightly to set clear-
ance between left needle and
looper point (see Fig. 41).
Tighten clamp screw again.
The clearance between left
looper 2 and left needle must
be 3.34 mm when the looper is
in its far left position. This
adjustment is made after loo-
sening screw 5 of the left
looper lever (see Fig. 42).
Afterwards set looper in re-
lation to needle using adjust-
ment gauge (dimension D, see
Fig. 43).
When the point of left looper
2 passes the centre of the
left needle on its movement to
the right it must be 1. 4 111m"
above the eye of the left
needle (Fig. 44). This adjust-
ment is made by loosening two
eccentric screws 6 o~ left
looper drive and turning ec-
centric accordingly (Fig.45).
Tighten two screws 6 again.
3
Fig.
.l.-----1
Fig. 40
Fig. 42
Fig. 44
Fig. 45
E
E
:1
l
Fig. 43
6
15
Etsy seller: PFANTOM