Setting The Needle Bar At Correct Height; Adjusting The Feed Dog In The Feed Slot - Pfaff 260 Service Manual

the position finger accurately, use gauge 8951-100 (Fig. 87). loosen the set
screw in the position finger bracket, and insert the narrow tip of the gouge
between the position flnger and the bottom of the position slot. Push the p osi-
tion finger bracket forward until it touches the gauge just lightly, then tighten
the set screw. Th e gauge must neither jam nor have excessive play in the
slot.
Fig. 86 Ad justing the position finger bro cke t
Fig . 87 Pos ition finger gouge
SeHing the N eedle Bar at Correct Height
It is advisable to set the needle bar at the correct height only after the z igzag
mechanism and the sewing hook have been adjusted, as instructed above.
If
the procedure is reversed, it may be impossible to trace an adjustment error
made previously . .
To set the needle .bar at the correct height, remove both the needle plate and
the face cover, ond insert a No. 90 needle. Set the machine for the widest zig-
zag stitch, put the needle position lever in the central notch, and rotate the
balance wheel until the point of the sewing hook is exactly opposite the center
line of the needle when the latter descends on the left of its throw (Fig. 88).
The needle bar is set at the correct height if the hook point is about .02", or
0.5 mm, above the top of the need le eye. To adjust, pass a screwdriver throug h
the aperture in the needle bar frame, loosen needle bar set screw A (Fig. 88),
and set the needle bar higher or lower, as may be required. Make sure, how-
ever, that the needle bar is not rotated in the process. After this a djustment,
tighten the needle bar set screw securely.
Adjusting the Feed Dog in the Feed Slot
Lateral Adjustment
The feed rows should be positio ned in the center of the feed slots and must
not chafe against the side walls.
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