Top Feed Actuating Link - Pfaff 487 Service Manual

2.

Top feed actuating link

14
Requirement
1. All moving parts of the top feed must move freely but without any play.
2. The vibrating presser must not contact the lifting presser.
Fig. 2 - 11
Lower the presser foot using lifting lever 1.
Loosen screw 2.
Swing link 3 into the fork of lever 4, insert pin 5 and tighten screw 6 (check for free
movement and set lever 4 if necessary).
Set stitch length at "0".
Position vibrating presser at centre of lifting presser cutout and tighten screw 2.
Loosen screw 7.
Align the hole in lever 8 with the elongated hole of lever 9, , , , , without any lateral play, if
necessary re-position or set lever 8.
Insert pin 10 with its eccentric lobe facing downwards into the holes of levers 9 and 8
and tighten screw 11.
Move lever 12 to its outermost position.
Push lever 8 in feeding direction until you feel it move into contact, and tighten screw 7.
Position the vibrating presser crosswise so that it does not touch the lifting presser
(screw 13).
4
5
3
10
2
13
Adjustment
12
7
8
1
9
11
4
6
2 - 12