Pfaff 5483 - Zeroing the bottom feed

Correct
setting;
4.1
Zeroing the bottom feed
With the stitch length set at "0", the feed dog must not move when the
balance wheel Is turned.
On machines with feed regulator wheel and closed gearcase.
©
0
4.0.1
4.1.1 Loosen clamp screw 1 (Fig. 4.0.1) of stop crank 2.
4.1.2 Turn the stitch length control to "0".
4.1.3 Also loosen clamp screw 3 of feed regulation crank 4.
4.1.4 In order to show the absence of feed motion more clearly, Insert a screwdriver
In the slot of feed driving crank 5 (Fig. 4.0.2).
4.1.5 Place a 22-mm open-ended spanner on hexagon tension nut 6 and use It to hold
feed regulating shaft 7 fast.
4.1.6 Rotate the balance wheel and simultaneously turn nut 6 on its shaft untii
the feed dog (1. e. the screwdriver in feed driving crank 5) no ionger moves
(Fig. 4.0.2).
4.1.7 Hold the spanner In this position and securely tighten clamp screw 3, making
sure that there Is a clearance of about 8 mm between thrust washer 8 and feed
regulating crank 4.
4.1.8 Check this adjustment (see "Correct setting") and take the screwdriver out of
feed driving crank 5 (Fig. 4.0.2).
4.1.9 Clamp screw 11s left loose for adjusting the stitch condensation.
From the library of: Superior Sewing Machine & Supply LLC