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5. Needle bar connecting rod,
needle throwing STM
Preparation required
Remove the top board.
Remove the face plate cover.
Remove the front panel.
Remove the microcomputer
circuit board.
Disassembly
Assembly
Point to be checked
Remove screw in the needle entry
adjusting collar, and remove compo-
nents , and .
Remove E ring of the needle bar
connecting rod shaft.
Then remove washer and needle
bar connecting rod .
Remove two screws in the needle
throwing STM, then remove STM (step-
ping motor).
· Fix the needle throwing STM with the
screws.
· Check the performance of the needle
throwing STM and the needle bar
frame.
· Attach the connecting rod in place.
· Attach the components which have
been removed in place.
· Do not bend the connecting rod.
· Be sure to attach the components
properly.
Screw in the needle throwing STM
Needle bar connecting rod
6. Face plate (asm.)
Preparation required
Remove the top board.
Remove the face plate cover.
Remove the front panel.
Disassembly
Assembly
Point to be checked
Remove two screws in the face plate
(asm.),then remove the face plate
(asm.).
· Attach the face plate (asm.) on the
frame, and fix it with the screws.
· Make sure that the front panel and the
face plate cover are spaced equidistantly
with respect to the lateral direction.
Screw in the face plate (asm.)
[Top view of frame]
Needle throwing STM link gear
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