Mitsubishi LU2-410 User Manual

7. ADJUSTMENT OF NEEDLE GAUGE DISTANCE
Rocking crank "C
Connecting link-
Hook bracket (left)-
Screw "A"
\
Screw
Bolt "J"
Stopper pin "E"
0
Stopper pin "F
Screw "A
Hook bracket
(right)
Spring "M
\
I
Connecting
rod "L"
Nut"G"
Screw "B" tu j •
Thread trimmer rocking thread trimmer cam
crank "D"
Cam roller
—Cam follower crank "K'
Cam roller
Cam follower crank "K'
Thread trimmer cam
Hook shaft
(1) Lean the machine head backward.
(2) Loosen 2 connecting link clamp bolts "J".
(3) Replace the throat plate, feed dog, and
needle clamp.
(4) Remove the spring "M".
(5) Loosen the hook bracket clamp screws "A"
and "B" to adjust the gaps between needles
and hooks.
(6) When the needles and hooks have been
adjusted, install the spring "M".
(7) Make the rocking cranks "C" and "D" con
tact with the stopper pins "E" and "F", and
tighten the connecting link clamp bolt "J".
(8) Turn the balance wheel by hand until the needles reach the lowest position.
(9) Loosen the nuts "G" and "H".
(10) Push the cam follower crank "K" and adjust the connecting rod "L" so that the cam roller
is smoothly placed onto the groove of thread trimmer cam.
(11) Adjustment of cam groove and cam roller
a) Push the cam follower crank to place the cam roller onto the cam groove.
b) By turning the connecting rod "L", minimize the gap between the cam roller and the
plane "N" as shown in the figure (within 0.2 mm). Then tighten the nuts "G" and "H".
c) Push the cam follower crank again to check if the cam roller is smoothly placed onto the
thread trimmer cam groove.
Note: When needle width exceeds 3/4", change the connecting rod "L".
Cam groove Plane "N'
22
From the library of Superior Sewing Machine & Supply LLC - www.supsew.com

Mitsubishi LU2-410 Specifications

General

Brand	Mitsubishi
Model	LU2-410
Category	Sewing Machine
Language	English