Brother International BAS-326E Network Users Manual - English - Page 60

Adjusting the needle clearance, 4. Adjusting the driver needle guard, 5. Adjusting the shuttle

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Chapter 4. Adjustments 3. Adjusting the needle clearance q 0.01 - 0.08mm w Turn the machine pulley to align the tip of the rotary hook with the needle center line. Then loosen the set screw q and turn the eccentric shaft w to adjust so that the clearance between the needle and the rotary hook is 0.01 - 0.08 mm. 4. Adjusting the driver needle guard q w e Turn the machine pulley to align the tip of the rotary hook with the needle center line. Then loosen the set screw w and turn the eccentric shaft e to adjust so that the driver needle guard q contacts the needle. If the needle contact pressure is too great, skipped stitches may occur. On the other hand, if the driver needle guard q is not touching the needle, the tip of the inner rotary hook will obstruct the needle, resulting in an excessively high amount of friction. 5. Adjusting the shuttle race thread guide q A Install the shuttle race thread guide q 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. 52 BAS-311E.311EL.326E.326EL

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52
BAS-311E.311EL.326E.326EL
Chapter 4. Adjustments
3. Adjusting the needle clearance
0.01 - 0.08mm
q
w
q
w
e
q
A
Turn the machine pulley to align the tip of the rotary hook with the needle center line. Then loosen the set screw
q
and
turn the eccentric shaft
w
to adjust so that the clearance between the needle and the rotary hook is 0.01 - 0.08 mm.
4. 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
w
and
turn the eccentric shaft
e
to adjust so that the driver needle guard
q
contacts the needle. If the needle contact pressure is
too great, skipped stitches may occur. On the other hand, if the driver needle guard
q
is not touching the needle, the tip of
the inner rotary hook will obstruct the needle, resulting in an excessively high amount of friction.
5. Adjusting the shuttle race thread guide
Install the shuttle race thread guide
q
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.