Pfaff 3801-3/07 Instruction Manual page 77

● Tighten screw 6.
● Remove gauge 4 and lower lifting presser 13 onto the needle plate.
● Loosen screw 14.
● Swing lever 9 into the fork of lever 10.
● Insert pin 7 (screw 8), making sure it can move freely.
● If necessary, bend lever 10 accordingly.
● Set needle bar at 0.8 mm before t.d.c.
● Set feeding presser 2 at middle of lifting presser cutout and tighten screw 14.
● Loosen screw 15.
● Connect lever 16 with link 17 using eccentric pin 11 (screw 12) and turn eccentric pin 11
with highest eccentric part facing downwards.
● Move lever 16 up against eccentric pin 11 and tighten screw 15.
● Position feeding presser 2 (screw 18) so that it does not touch lifting presser 13 to
the side.
All moving parts of the top feed drive must run smoothly and without any
backlash.
Lubricate the joints at regular intervals, see Chapter 12.03 Lubricating the top
feed joints.
Adjustment
13 - 14