Pfaff 441-O - Preliminary Adjustment of Needle Bar Height

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Preliminary adjustment of needle bar height
Correct When the needle bar Isat top dead center, there should be a clearance of 17 mm be
setting: tweenneedlepointand needle plateon Model S machines,and a clearanceof22 mm
on Model L machines.
Model S = 33 mm needle bar stroke
Model L = 38 mm needle bar stroke
17mm(22mm)
10.0.1
10.0.2
10.1 Bringthe needle bar to top dead center.
10.2 Loosen hexagon screw 1 inthe needle bar connecting stud.
10.3 Adjust the needlebar vertically untilthere is a clearanceof17mmbetweenneedle
point and needle plate on Model S machines, or a ciearance of 22 mmon Model L
machines. Make sure the needie bar is not turned in the process.
10.4 Inthis position, tighten hexagon screw 1.
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From the library of: Superior Sewing Machine & Supply LLC