Singer 321 KNITTER - Page 93

89
1
Nature of
Trouble
Places
to be
Inspected
Causes
Remedy
Main
and Sub Drum.
Touch Levers
1.
Breakage of
Drum Piece
2. Inactiveness of
Drum
Piece
3. The loss
of Drum Piece
4. Th e loss
of steel ball
5. Rebound
Spring is bent
6. Inactiveness of
Touch
Lever
7. Touch Lever-
Spring is
weak.
Replace Drum
Replace Drum
Replace Drum
Fill the Ball
Replace the spring
Check the Touch Lever
Shaft.
Replace the Spring.
H.
CD
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ro
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CD
a)
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H.
a)
CD
cnri
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Too
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Drum Unit The mutual positions of
Needle Bed
Rack, Needle
Bed
grooves and Drum Unit
are
incorrect.
Adjust the position of
Drum Unit.
See
page
23
The clearance
between
Rail and Needle Bed
Rack.
If
the clearance between
Rail and
Needle Bed Rack
is incorrect, the
Needle
Butts
will collide with
Separation Cam.
Adjust the Needle Bed
Rack and Drum Unit.
See page 44
Check if Weaving
brush correctly
positioned, and
W.P. clearance.
auop
aq
lou
trep
SuTrivam
In case Weaving
brush is
not
correctly placed, or
W.P.
clearance is
not
correct,
it becomes
impossible to weave due
to an insufficient pressure
on a weaving yarn.
Adjust Weaving brush
to
be right in
position, and adjust
the W.P. clearance.
See
page 75