Pfaff hobbylock 783 - Adjusting the Needle Height and Needle Penetration

6 Adjusting the needle height
and needle penetration point
of the hobbylock 784, 786
When the needle bar is at top
dead centre, the vertical dis-
tance between the left needle
and needle-plate surface must
be 12 mm. For this adjustment
use the adjustment gauge (di-
mension A, see Pig. 16).
Ensure needle is pushed fully
into needle holder.
Set needle
bar at bottom
dead
centre and make sure that
needle penetration points
1
are exactly
in
centre of
needle plate and clearance
from front
of
needle
plate
is
1 mm (see Pig.
17).
Adjustment sequence:
Loosen screw 2 of needle bar
connection crank. Now set cor-
rect height by moving needle
bar 3 up or down. While doing
so, make sure needle holder
stays parallel with machine
housing. Tighten screw 2 again
(see Pig. 18).
The needle pentration points
are adjusted by re-positioning
needle plate mounting 4 (see
Pig. 19).
To do this, loosen two screws
5, set needle penetration
point by repositioning needle
plate mounting 4, and tighten
two screws 5 again.
<C
Fig. 16
E
E
-;/
1
,.....
.l.
T
n
Fig. 17
2---+-+
3--==1=""1
Fig. 18
4
Fig. 19
9
Etsy seller: PFANTOM