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SunStar SF 7400 Series User Manual

SunStar SF 7400 Series
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46
A. Loosen the screw .
B. When the rod of the trimming cylinder is at the far
left (when the trimming device is not working),
adjust the block for trimming switch guide to
parallel with the rod end of the trimming cylinder.
C. Tighten the screw .
(1) Block for trimming switch guide.
6) Adjustment of thread tension release mechanism
[ Figure 87 ]
[ Warning ]
Before adjustments, always turn off the motor switch and check to make sure that the motor is in stop mode.
[ Figure 88 ]
A. Loosen the nut of the thread trimming air cylinder.
B. Adjust the holder for limit switch bracket to bring
the thread tension release connecting plate to
come between the screw head and the tension
release lever .
C. Tighten the nut .
(2) Thread tension release connecting plate.
[ Figure 89 ]
A. Loosen the screw of the tension release lever
located on the backside of the machine.
B. Lift the thread pull-off lever to the top.
C. Tighten the screw afterwards.
(3) Thread pull-off lever

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SunStar SF 7400 Series Specifications

General IconGeneral
BrandSunStar
ModelSF 7400 Series
CategorySewing Machine
LanguageEnglish

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