J
Adjustment of the corner
stitching device “0” position
( 1 ) When the stop lever is set “0” position, adjust
so that the gap A and B between the cam
and two hinged pins of the needle bar guide
bracket are equal as follows.
① Rough adjustment:
Adjust so that the center distance
between two holes of the stud bolt is 115
mm by loosening the nut and turning the
stud bolt.
② Fine adjustment:
Loosen the guide pin set screw Ⓐ , and
set so that the gap A and B between the
cam and two hinged pins are equal.
( 2 ) After adjusting, move the stop lever to “L”
or “R” position, and check that the corner
stitching device work correctly.
K
Adjustment of the corner stitching
device / height of the needle bar
If one needle stop isn’t working correctly in “L” or “R”
position, adjust height of the needle bar as follows.
( 1 ) Remove the face plate and the rubber plug.
( 2 ) Move the needle bar to the position where
the screw of the needle bar crank rod is able
to be adjusted by turning the pulley.
( 3 ) Loosen the screw.
Note: Be careful not to loosen the screw too much.
( 4 ) Turn the pulley and stop it at the position where
the needle bar comes to the highest position.
( 5 ) Adjust the eccentric bushing, and tighten the screw.
Stud rod
Nut
Nut
Guide pin
115 mm
Stop lever
Hinged pin
Needle bar guide bracket
C
C
Set screw
Ⓐ
Guide pin
Cam
Hinged pin
CC-cross
section
A
B
Screw
Needle bar
guide bracket
Rubber cushion
Small needle
bar clamp
Needle bar
Eccentric bushing
Needle bar crank rod
Rubber plug
Working contents
How to adjust
When one needle stop isn’t enough
(When the stopping needle bar fallen)
Lift the
needle bar
Lower a notch of the
eccentric bushing.
○When the needle bar that stopping wobbled
○When the small needle bar clamp contact
the rubber cushion of the needle bar guide
bracket strongly and the machine torque
become heavier
Lower the
needle bar
Raise a notch of the
eccentric bushing.
Notch
Notch
HOW TO USE
— 15 —
Summary of Contents for LT2-2250-B1T
Page 28: ...Printed in Japan ...