Pfaff 5483 - 37 Looper height

37
Correct
setting;
Looper height
When the looper holder is in its vertical position, there must be a clearance
of 3.2 mm between the highest point of the looper and the underside of the
needle plate (see Fig. 37.0.2).
1
m
37.0.1
37.1 Remove bed slide, cover plate, needle plate, and feed dog.
37.2 Place the needle plate In position again and operate the presser bar lifter to
lower the presser foot onto the needle plate.
37.3 Turn the balance wheel until the looper holder is vertical.
37.4 Loosen clamp screw 1 and screw 2 of eccentric bearing stud 2.
37.5 Turn eccentric bearing stud 3 until there is a clearance of 3.2 mm between the
highest point of the looper and the underside of the needle plate (see Fig.37.0.2).
37.6 In this position, tighten clamp screw 1 and screw 2.
37.7 If the clearance of 3.2 mm cannot be obtained, proceed as follows:
37.7.1 Raise the presser foot and remove the needle plate.
37.7.2 Loosen clamp screw 4 in looper holder 5 and take off the looper (do not lose
spacer).
37.7.3 Fit an appropriate spacer (see inside front cover) on the looper neck and push
the looper into looper holder 5 again as far as it will go.
37.7.4 Set the looper blade roughly parallel to the front edge of the bedplate (pre
liminary adjustment) and tighten clamp screw 4.
37.7.5 Replace the needle plate and operate the presser bar lifter to lower the presser
foot onto the needle plate.
37.7.6 Check that there is a clearance of 3.2 mm between the highest point of the
looper and the underside of the needle plate when the looper holder is in its
vertical position.
37.8 If necessary, repeat steps 37.3 to 37.6
37.9 Check this adjustment (see "Correct setting").
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From the library of: Superior Sewing Machine & Supply LLC