17
AZ-SD, AZF-G/BT43
4.3 Lower looper adjustment
Fig. 4-3
④
③
⑤
②
①
4.4 Stitch plate tongue front-and-rear position
◇ Front position
(1) Loosen the screws ① and turn the solenoid
cover ② in the arrow direction.(See Fig.
4-3)
(2) When the stitch plate tongue is out, loosen
the screw ⑥ and move the stitch plate tongue
arm ⑦ .
(3) When the tongue is out from the stitch plate
by 6 mm, tighten the screw ⑥ securely.
Fig. 4-4
Fig. 4-5
⑧
apply
②
⑦
⑥
6 mm
To adjust the lower looper of a sewing machine
with a BT43 device, take the following steps.
(1) Loosen the screws ① and turn the solenoid
cover ② in the arrow direction.
(2) Loosen the screws ③ and remove the solenoid.
(3) Adjust the lower looper.
(4)
Insert the pin screw ④ into the hole of the
stitch plate tongue ⑤ and reinstall the solenoid.
(5) Tighten the screws ③ securely.
(6) Tighten the screws ① securely.
◇ Rear position
(1) When the tongue is retracted, loosen the
screw ⑧ .
(2)
Apply the rubber cushion of the arm ⑦ to
the solenoid cover ② so that the tongue can
be hidden under the stitch plate completely,
and tighten the screw ⑧ .
stitch plate tongue is hidden
under stitch plate.
4.Adjustments
Always adjust the rear position of the stitch
plate tongue.
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Before adjusting, ALWAYS turn the motor switch OFF
and check that the motor has already stopped.
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