Pfaff 5483 - Clearance between rear needle guard and needle

Needle bar height and looper-to-needie clearance (final adjustment)
When the point of the advancing looper is in line with the left side of the
needle, the bottom edge of the looper must be positioned 1.0 to 1.2 mm
above the top of the needle eye (Fig. 15.0.2).
In
this position, there must also be a clearance of 0.1 mm between looper and
needle (see Fig. 15.0.3).
15.0.1
15.0.3
^ /1.0-
f 1,2 mm
Turn the balance wheel in sewing direction until the point of the advancing
looper is in line with the left side of the needle.
Inthis position, loosen both clamp screws 1 (Fig. 15.0.1) inneedle bar connecting
stud 2.
Move needle bar 3 up or down until there Is a clearance of 1.0 to 1.2 mm between
the top of the needle eye and the bottom edge of the looper (see Fig. 15.0.2).
Make sure the needle bar Is not turned during the adjustment.
In this position, tighten both clamp screws 1 and check whether there is a
0.1 mm clearance between looper and needle (see Fig. 15.0.3). For correction
see steps 13.2 to 13.4.
Check this adjustment (see "Correct setting").
From the library of: Superior Sewing Machine & Supply LLC