JUKI LK-1900B series Engineer's Manual

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(15) Adjustment of the moving knife and counter knife position
WARNING :
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the
sewing machine.
Standard adjustment
Counterknifeposition: Theclearancebetweenthecounterknife
❺
and the needle hole guide
❻
is 0.5 mm.
Movingknifeposition :Beforethreadtrimmeroperation(standbystate),thedistancefromthethroatplate
❹
to the tip of the thread trimmer lever (small)
❼
is 18.5 mm.
(16) Adjustment of the height of the moving knife and counter knife
WARNING :
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the
sewing machine.
Standard adjustment
Moving knife
❽
 :Theamountofmeshoftheneedleholeguide
❻
with the moving knife
❽
is 0.15 mm.
Counter knife
❺
 :Theheightbetweentheneedleholeguide
❻
and the blade of the counter knife
❺
is 0.1
to 0.15 mm.
Moving knife link
❹
(Throat plate)
0.1 to 0.15 mm
0.15 mm
❺
❽
❻
A

JUKI LK-1900B series Specifications

General

Brand	JUKI
Model	LK-1900B series
Category	Sewing Machine
Language	English