3 - 12
Thread tension mechanism
Main unit
13
Thread take-up spring attachment
1. Attach the thread take-up spring 1 to the thread take-up spring cover 2.
*Key point
• Align end A of the thread take-up spring with the center of the
thread take-up spring cover groove.
• Insert end B of the thread take-up spring between protrusions
a (two) of the thread take-up spring cover.
2. Attach the thread take-up spring cover assy. 2 to the thread tension holder
assy., and attach retaining ring E4.
*Key point
• Align tension disc A and tension disc B with protrusion b on
the thread take-up spring cover assy.
B
1
Retaining ring E4
2
A
Protrusions a
Protrusions b
2
2
14
LED lamp L assy. attachment
1. Attach LED lamp holder L 1 and the LED lamp L assy. 2 to the thread
tension holder assy. using screw 1.
1
Torque
0.57 - 0.78 N-m
1
1
,
2
Screw, Bind
M3X4
Color; Silver
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