Zeroing The Feed Motion - Pfaff 481 Service Manual

2

Zeroing the feed motion

Requirement
The feed dog must not move when turning the handwheel with the stitch length set at "0".
2.1 Zeroing procedure with the gearbox closed
Raise the presser foot and set the stitch length control lever 1 at its lowest position.
Turn eccentric bushing 2 (screw 3) so that mark 4 is roughly at the bottom and the edge of
the milled surface is at an angle of 45° to the machine front (for final adjustment see
section 23).
nsert an allen key in one of the holes in collar 5. Use the allen key to hold the shaft in
position.
Rotate the handwheel and at the same time turn shaft 6 (screw 7) with the allen key
according to the requirement. Remember that in the PFAFF 483 there must be a
clearance of 8 mm between the bearing bush and actuating crank 8.
8
6
7
8 mm
1
5
2
3
4
PFAFF 5