10. Adjustment
10-12. Adjusting the needle up stop position
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| The needle up stop position is adjusted so that the index |
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| mark w on the machine pulley q is inside the mark r |
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| on the belt cover e. |
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| If adjustment is necessary, loosen the screw t at the “U” |
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| mark of the machine pulley q and adjust the position of |
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| the machine pulley q. The machine pulley q stops later |
e |
| if it is turned clockwise, and it stops earlier if it is turned |
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| counterclockwise. |
r |
| NOTE: |
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| The screw y at the “D” mark is an adjusting screw for the |
| q | needle down detection function and is adjusted to match the |
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| feed timing, so it should not be loosened. |
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| The screw u is a screw for detecting the machine stop posi- |
w | t | tion, and should not be loosened. |
u | * If the index mark w is not inside the mark r when the | |
y | sewing machine is started, error code | |
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| |
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| played. Turn the machine pulley to move the index mark |
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| w to the correct position and then start the sewing |
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| machine. |
10-13. Adjusting the thread wiper
we
| r |
| q |
2± 0.5mm | t |
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(Approx. Approx.
30mm) 20mm
1.Loosen the set screw w and move the wiper arm support e up or down to adjust so that the clearance between the top of the thread wiper and the needle point q is 2 ± 0.5 mm when the thread wiper is aligned with the center of the needle.
*Before carrying out this adjustment, check that the needle bar is lowered 3.5 to 4 mm from the needle up stop position when the sewing machine stops.
2.Loosen the screw r and move the thread guide connecting plate t up or down so that the thread wiper is approximately 20 mm from the needle when it is at the standby position.
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