−29 −
3. STANDARD ADJUSTMENT OF THE ADDITIONAL DEVICES (LU-1510-7)
(1) Thread trimmer device
1) Position of the counter knife and the clamp spring
2) Position of the counter knife base
Standard Adjustment
①
②
③
④
⑤
①
②
③
A 1.7 mm
B 1.5 mm
Dimension A (4.8 ± 0.2 mm)
C
D
Fig. 51
Fig. 52
Fig. 53
To contact
To contact
Condition
• To make the end face come in contact with
the difference in step of counter knife base
End face of counter
knife base
Counter knife gauge
Dimension A (13 ± 0.1 mm)
Dimension B (1.6 ± 0.1 mm)
Condition
• To make the end face come in
contact with the difference in step
of hook shaft saddle
To contact
Counter knife gauge
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