S-101
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Revised 09/2004
1-26
THREAD TRIMMER AND THREAD RETAINER
Upper thread trimmer is activated by a wedge located on the main cam. Movement of the thread
trimmer should be delayed as late as possible to allow thread pick up hook to be in position, to
pick up trimmed thread.
Knife should be set to clear front of needle and bottom of throat plate. Also check that knife
clears top of spreader.
Knife should be installed and adjusted so that it trims thread on the return strock.
The check spring
o
on the top of the race is
adjustable as to swing out and in, loosen
screw
p
and adjust the stop wire
n
.
The approx. correct position is as shown in
Figure 3 at (X) (at edge of machined portion
if cam case)
TO SET THE UNDER THREAD GUIDE
Adjust the under thread guide
r
so that thread lies
close to the under side of the looper
q
and thread runs
freely without friction - use screw
s
to adjust.
Thread retainer should be set below the top
surface of the throat plate and set lightly
against the front of the throat plate. Thread
retainer in its home position should be to
the right of the thread slot. When the
trimmer is activated thread retainer wipes
across the thread slot and captures thread
for the next cycle.
n
p
o
o
n
r
s
q
CORD TRIM - MACHINE ADJUSTMENT