S-4000 LT
1-26
Revised 10/2004
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4 . N E E D L E B A R
1.
Needle bar crank position
Turn the handwheel
➎
and loosen the screw
➊
in the
needle bar crank
➋
. Turn the handwheel until the
needle bar reaches the upper position. Pulley screw
➌
on the main shaft should be in the same line with
screw
➍
. Tighten the screw
➊
.
NOTE:
The needle bar should be in the top dead
center position when the screw
➌
is at 12 o‘clock. To
check, turn the handwheel clockwise and counter
clockwise. The needle bar must move downward in
either direction. The needle
➓
makes its first stroke into
the right side of the throat plate.
2.
The needle bar height adjustment
Adjust the needle bar
➏
height to 16 mm (5/8“) from
the surface of the throat plate
➐
to the lower edge
of the needle eye. Use height gauge
➒
.
Loosen the set screw
➑
and move the needle bar up
or down as necessary.
the first stitch direction
E - MACHINE ADJUSTMENTS
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