Mitsubishi LS2-1180 Instruction Manual
MITSUBISHI
Industrial Sewing Machine
TECHNICAL INFORMATION
Automatic
Model
LS2-
Undertrimmer,
1 1
80
Single-Needle
Lookstitch
ET-035
• MITSUBISHI
"ELECTRIC
..
CONTENTS
1.
SPECIFICATIONS ............................................................................................................................................. 2
2.
THREAD TRIMMER SYSTEM ...................................................................................................................
3-5
2.1
2.2
2.3
3.
3.1 Installation
3.2
4.
4.1
4.2 Thread
Electric Section ............................................................................................................................................ 3
Machine
Machine
PREPARATIONS
Adjustment
3.2.1
3.2.2
3.2.3
Head Section
Head Section
of
of
Adjust
Adjust
Comfirm
into
of
of
the
(1
) .......................................................................................................................... 4
(2)
.......................................................................................................................... 5
BEFORE
Sewing
Machine
"UP"
"DOWN"
the
receptacle ............................................................................................................................ 7
OPERATION ...................................................................................................
Machine and
Stop
Position ...................................................................................................... 7
position
position
stop operation then
Motor.
................................................................................................................... 7
............................................................................................................ 7
............................................................................................. 6
the
plug
(12 pins)
coming
from
the
machine
ADJUSTMENTS ......................................................................................................................................
How
to
Adjust
Trimmer
Timing
between Needle and Hook .................................................................................. 7
Mechanism ..................................................................................................................... 8
4.2.1 Construction ...................................................................................................................................... 8
4.2.2 Cautions on
4.2.3 Installation
4.2.4 Connection
Knife
4.2.5
driving
4.2.6 Installation
4.2.7 Installation
4.2.8
Adjustment
4.2.9
Adjustment
4.3
4.4 Cautions on Installation
4.5
4.6
4.7
4.8
4.9
4.10 Hook,
Adjustment
Touch-Back Pushbutton ........................................................................................................................... 12
Wiper
.......................................................................................................................................................... 13
Height
4.6.1
Wiper
4.6.2
Adjustment
Adjustment
Timing
of
Feed .......................................................................................................................................... 14
Bobbin
adjustment
of
knife base and
of
knife base and knife
shaft and related parts .............................................................................................. 9
of
thread
of
thread
of
knife
of
needle thread tension releasing
of
Needle Thread Remaining Length .................................................................................
of
wiper
............................................................................................................................... 13
operation
of
Forward and Reverse Stitch Lengths ............................................................................ 13
of
Feed Dog Inclination ....................................................................................................... 13
Case, and Bobbin ............................................................................................................. 14
position
................................................................................................................... 8
fixed
blade bracket unit.. ............................................................... 8
trimmer
trimmer
engagement
of
Touch-Back
............................................................................................................... 13
driving
solenoid
cam ............................................................................................... 10
..................................................................................................
Solenoid
crank ......................................................................... 9
unit
................................................................................ 10
amount
................................................................................. 12
............................................................
6-7
head
7-14
11
12
12
5.
TROUBLESHOOTING ....................................................................................................................................
1
15
1. SPECIFICATIONS
~I
It
Material
Max. sewing speed,
Stitch
Needle bar stroke,
Presser
(Knee lifter/Manual)
Bobbin case
Thread
Thread
weight
length,
foot
stroke,
Needle
Hook Standard (for thread
Bobbin
trimmer
trimmer
spm
mm
mm
mm
starting
LS2-1180-LIT LS2-1180-MIT
Light
4300 5000
29.0
11/4 11/5 13/5
DA X 1
aluminum for
thread
#11
Made
of
trimmer
Rotary scissoring
Light
0
to
4
DB X 1-2#14
Standard Heavy Large
Made
LS2-1180-MITW
to
medium
31.8 33.0 35.0
trimmer)
of
steel,
for
thread
by
left
movable
Solenoid actuation
LS2-1180-HIT LS2-1180-BIT
Heavy
3500 3000
0
to
DB
X 1
Heavy
[fo~
thread]
tnmmer
trimmer
knife and
right
fixed blade
7
#22
Heavy
[
fo~
thread]
tnmmer
Made
steel
for
trimmer,
(Large)
of
thread
large
Knife
drive
Touch-back
Wiper
Oil
Cam
drive
0
-~·-
------·
--
-
-
0
MC70M
j_
-
-
2
2.
THREAD
2.1
Electric Section
TRIMMER
SYSTEM
i-
L----'
-.,_
________
./
Part Names
G) Sewing machine
@ Balance wheel
(j) Wiper solenoid
5
® Touch switch
® Synchronizer
®Motor
® Back solenoid
® Thread
trimmer
® Drive pulley
solenoid
@ Machine cord plug
@ Detector cord plug
@ Control box
@Pedal
@ Operation box
3
@ Operation box cord plug
@
POWER
ON/OFF
pushbutton
2.2 Machine
Head
Section ( 1)
Thread
trimming
mechanism
Names
Part
CD
Thread tension
@Pedestal
(j)
Knife driving crank
@stopper
@Knife
base
@ Driving lever
(left)
release
®Flexible
®Movable
®cam
wire
knife (left)
follower crank (1)
@ Fixed blade bracket
@Knife
@Thread
driving shaft
trimmer
solenoid
4
@Needle
®Fixed
®Cam
@Link
@Coil
follower crank (2)
spring
bar connecting link guide
blade
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