9. ADJUSTMENTS
9-11. Needle zigzag forward/back position
1147B | Adjust so that the following are obtained. | ||
| • | The needle is in the center of the needle hole in the | |
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| forward/back direction. | |
| • | There is no play in the needle bar in the forward/back | |
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| direction. | |
| • | When the power switch is turned off, the needle bar can | |
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| be moved smoothly sideways by hand. | |
| * | Carry out adjustment with the sewing machine set to the | |
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| following conditions. | |
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| • | With the needle bar base assembly (1) and the zigzag |
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| joint (2) not secured. |
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| • | With the screw (5) and nut (6) loosened so that the |
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| needle bar base presser pin (3) is further in than needle |
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| bar base guide R (4) as shown in the illustration. |
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| • With the bolt (7) loosened. | |
0148B
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| 1. Remove the presser foot. (Keep it removed while |
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| 1148B | |
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| adjustment is being carried out.) | |
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| 2. Loosen the two set screws (hexagonal hole, 2.5 mm |
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| width across flats) (8) and then push needle bar base |
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| guide R (4) to adjust the position. |
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| Turn the machine pulley and check that the needle drops |
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| into the center of the needle hole. |
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| 3. Securely tighten the set screw (8). |
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| * After adjusting, check that there is no forward/back play in |
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| the needle bar, and also check that the needle bar can be |
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| smoothly moved sideways by hand when the power |
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| switch is turned off. |
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| * After adjusting, carry out the adjustment in |
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| zigzag sideways position”. |
1149B
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