Brother International KE-436C Instruction Manual - English - Page 46

Adjusting the driver needle guard, 9-4. Adjusting the needle clearance

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9-3. Adjusting the driver needle guard Needle center line Tip 9. STANDARD ADJUSTMENTS 0135Q 2555Q 2556Q Turn the machine pulley to align the tip of the rotary hook with the needle center line. Then loosen the set screw (2) and turn the eccentric shaft (3) to adjust so that the driver needle guard (1) contacts the needle. If the needle contact pressure is too great, skipped stitches may occur. On the other hand, if the driver needle guard (1) is not touching the needle, the tip of the inner rotary hook will obstruct the needle, resulting in an excessively high amount of friction. 9-4. Adjusting the needle clearance 0.01 - 0.08mm 0138Q 2557Q Turn the machine pulley to align the tip of the rotary hook with the needle center line. Then loosen the set screw (1) and turn the eccentric shaft (2) to adjust so that the clearance between the needle and the rotary hook is 0.01 - 0.08 mm. 9-5. Adjusting the shuttle race thread guide 2558Q Install the shuttle race thread guide (1) by pushing it in the direction of the arrow so that the needle groove is aligned with the center of the needle plate hole. Note: If the shuttle race thread guide is in the wrong position, thread breakages, soiled thread or catching of the thread may occur. The position of the shuttle race thread guide is adjusted at the time of shipment from the factory. It should not be changed if at all possible. KE-436C 40

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9. STANDARD ADJUSTMENTS
40
KE-436C
9-3. Adjusting the driver needle guard
Turn the machine pulley to align the tip of the rotary hook with the needle center line. Then loosen the set screw (2) and turn
the eccentric shaft (3) to adjust so that the driver needle guard (1) contacts the needle.
If the needle contact pressure is too great, skipped stitches may occur. On the other hand, if the driver needle guard (1) is not
touching the needle, the tip of the inner rotary hook will obstruct the needle, resulting in an excessively high amount of friction.
9-4. Adjusting the needle clearance
Turn the machine pulley to align the tip of the rotary hook with the needle center line. Then loosen the set screw (1) and turn
the eccentric shaft (2) to adjust so that the clearance between the needle and the rotary hook is 0.01 - 0.08 mm.
9-5. Adjusting the shuttle race thread guide
Install the shuttle race thread guide (1) by pushing it in the direction of the arrow so that the needle groove is aligned with the
center of the needle plate hole.
Note:
If the shuttle race thread guide is in the wrong position, thread breakages, soiled thread or catching of the thread may
occur.
The position of the shuttle race thread guide is adjusted at the time of shipment from the factory. It should not be changed if
at all possible.
2558Q
Needle center line
Tip
0135Q
2555Q
2556Q
0138Q
2557Q
0.01 - 0.08mm