4 - 12
Adjustment
Adjustment of Needle bar height
1. Remove the face plate.
2. Press
and
button on the front cover while turning power on : the buzzer will sound four times.
3. Select the test mode number [3].
4. Press
five times to the left base line.
5. Turn off the power.
6. Turn the pulley by hand until the right edge of the needle and the outer rotary hook tip meet.
7. Loosen the socket set screw (FT, M4 x 4) of the needle bar block.
8. Adjust the height of the needle bar for 1.0 - 1.4 mm between the top of the needle hole and lower edge of the outer
rotary hook tip.
NOTE •Make sure the needle block is not positioned at a slant.
9. Tighten the socket set screw (FT, M4 x 4) of the needle bar block. ( torque : 0.78 - 1.18N · m)
10. Perform "Adjustment of Needle thread block" (4 - 14).
Right edge of needle
and tip coincide
1.0 - 1.4mm
Needle bar
block
Needle bar
Socket set
screw
(FT, M4 x 4)
Содержание B-500
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Страница 19: ...2 2 Main parts Main parts location diagram Main unit ...
Страница 32: ...2 15 Disassembly Electrical parts and main motor Electrical parts and main motor location diagram Main unit ...
Страница 36: ...2 19 Disassembly Thread tension mechanism Thread tension mechanism location diagram Main unit ...
Страница 39: ...2 22 Bobbin winder mechanism Bobbin winder mechanism location diagram Main unit ...
Страница 43: ...2 26 Feed mechanism Feed mechanism location diagram Main unit ...
Страница 49: ...2 32 Base plate and handle Base plate and handle location diagram Main unit ...
Страница 52: ...2 35 Disassembly Needle presser module Needle presser module breakout diagram Modules ...
Страница 61: ...2 44 Feed and bobbin module Feed and bobbin module breakout diagram Modules ...
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Страница 73: ...3 2 Base plate and handle Base plate and handle location diagram Main unit ...
Страница 81: ...3 10 Feed mechanism Feed mechanism location diagram Main unit ...
Страница 84: ...3 13 Assembly Bobbin winder mechanism Bobbin winder mechanism location diagram Main unit ...
Страница 88: ...3 17 Assembly Thread tension mechanism Thread tension mechanism location diagram Main unit ...
Страница 93: ...3 22 Electrical parts and main motor Electrical parts and main motor location diagram Main unit ...
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Страница 101: ...3 30 Assembly Main parts Main parts location diagram Main unit ...
Страница 113: ...3 42 Assembly Needle presser module Needle presser module breakout diagram Modules ...
Страница 125: ...3 54 Assembly Feed and bobbin module Feed and bobbin module breakout diagram Modules ...
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