♦
MITSUBISHI
INDUSTRIAL
SEWING
MACHINE
Model
classes
INSTRUCTION
FOR
OPERATION
MANUAL
Main
parts
name
of
machine
LZ•760
(I)
(5^
head
(6)
Face
1.
2.
3.
4.
5.
6.
7.
8.
9.
plate
Presser regulating
screw
Thread
3-ho!e
Pre-tension
3-hole
Oil
Top
Balance
take-up
thread
thread
check
cover
wheel
guide
guide
window
thumb
lever
10. Zigzag
11. Zigzag bight
12.
Reverse
13.
Oil
14. Stitch adjust push button 24. Thread guide (Arm left)
15.
16.
17.
Throat
18.
Slide
19.
bight
pump
Bed
Auxiliary
plate
Presser
lever
plate
plate
foot
adjuster
adjuster
20.
21.
22.
23.
25.
Presser
Needle
Needle
Thread
Arm
bar
bar
thread
bar
guide (Arm)
26. Thread guide (Arm right)
27. Upper
regulator
28.
Upper
thread
thread
tension
guide
guide
How
1.
How
to
use
to
attach
needle
the
machine
Note:
Before
switch
making
off
the
the
power
following
source
adjustment,
by all means.
Insert
tom
of
the
screw
sideofneedle
2.
Howtowind
on
the
Adjustment:
the
needle
bobbin
needle
clamp
keeping
toward
Long
toward
the
**
upto
the
and
the
long
you.
groove
you
lower
thread
lower
thread
Strength of
Strength
bot
tighten
groove
winding:
of ^
Insufficient
insertion
Note: In caseofrotating
keep
the
presser
Particularly in
caseofnylon
the
foot
is desirable that the bobbin is wound enough loose.
Uneven winding: In
slightly tov/ard
winding.
Winding
amount of thread:
sive loosen
the
caseofuneven
the
less
wound
When
adjusting screw and tighten
winding,
partofbobbinsothattoobtain
thewinding amount of threadisexces
machine
raised.
Needle
distorted
without
of tetoron thread, it
adjust
when
the
insufficient.
thread
sewing,
guide
even
Winding
adjusting
Winding
adjusting
tension
screw
amount
screw
Thread
guide
nix
'A^r
o
Ll,
Even
winding
with
amount
4/5offull
capacity
of
How
to
use
the
machine
3. Howtoplace
case
1. Insert
direction
4.
Threading
Raise
the
bobbin
when pull
the thread take-up
est position and
in
the
following order. istobe
the
bobbin
to
out
Bobbin
thread
and
move in
the
thread.
case
lever
the
upper
the
Bobbin
bobbin
the
arrow 3. Insert
to its
high-
thread
2. Lead
3.
the
'
Note:
the
thread
the
bobbin
latch lever.
The
thread
put
through
case
into
Latch
lever
guide (C) of
just above
the
slit 1, 2 and
hook
cotton
the
spool.
holding
Tension
g
stand
Thread
Thread
/spring
take-up
How
5.
Adjustment
Causion;
to
of
use
zigzag
the
width
* No adjustment of zigzag width can
be
done
chine.
LZ-710
the
dial
* Adjust
cloth
during
Do
not
machine
rotates
the
worked.
operation
touch
simultaneously.
needle to be above
Needle
is
maged or bended if zigzag width is
adjusted while
into
the
4 LZ-710
Turning
and
the
zigzag width adjustable dial
setanindicating
accordingtothe
the
cloth.
needle is inserted
line
"A'
required zigzag width.
machine
of
the
dial
operating,
may
to
the
when
be
scale
ma
for
the
da
6.
Adjustmentofstitch
1. Pushing
the
push
length&backstitch
button
down
the balance wheel slowly toward you.
2. So
that
the
push
button
and
the
balance wheel running.
At
this
time
set
the
on
the
Balance Wheel with
on
the
arm
and
button
Causion: Do
when
will be broken if
7.
Adjustmentofpressure on presser
Pressure
shown
not
operating
on
the
in Fig.
touch
the
the
presser
justedinaccordance
sewn.
light
Pressure
For
weight
material
(weaken).
goes
down
graduationofthe
the
then
release
the
push
machine.
The
pushbutton
Indicating
rrk
footisto
with
materialstobe
regulating
^
thumb
For
heavy
material
and
turn
further
dial
marking
the
push
button
machine
ispushed.
foot
be
screw
weight
(tighten)
ad
8.
♦
LZ-760
Loosen
the
arrowtothe
the
nut
by
box
indicating
spanner
number.
Box
and
spanner
Adjustmentoffeed dog
set
height
Feed
1
Arrow
Feed
bar
Number
Indicating
of
180°onthe
Eccentric
pin(D
Indicating
mark
canbeadjusted
sideofarrowdirection
Arrow
mark
within
on
dog
direction
the
feed
limits
bar.
ow
to
use
the
C2
9.
Adjustment
thread
o
10.
Upper
**
Upper
the
**
Upper
tension
For
special fabric sewing
thread,
tained by adjusting
erating range of
♦
Adjustment
* Adjustment of strength of
take-up
1.
Loosen
thread
2. It adjusts the strength of
take-up
thread
the Fig. (It obtained
strength in more 180 degrees turning
when
from 0 pressure.)
*
of
tension
Well
balanced
stitch
thread
tension
threadisadjusted
lower
thread
thread
tension
regulating
the
desired
thread
of thethread
spring.
the
screw
tension
tension
the
Standard
Light material about 20g
Medium
Heavy material
stud.
spring by
stud
take-up
tensionisas
material
machine
X
tension.
thumb
tension
the
according
is adjusted by
nut.
with
can
strength and op
take-up spring.
take-up
"A"
of
turning
"B"
as
about
spring
fitsto stopper
follows.
....
about
about
In
case
too
strongorlower
is
too
weak
special
be
spring
the
thread
the
upper
the
thread
the
upper
shown
25g
30g
to
ob
25g
>
upper
in
thread
thread
is
X
In
too
is
too
case
weak
upper
strong
thread
or
lower
thread
/
is
Thread
tension
nut
^"^trengthen
Weaken
Strengthen
Weaken
*
11.
Lower
Thread
spring
thread
tension
tension
Strengthen
Standardoflower
1. Bobbin case should have a bobbin with
regular amount of the
.
It is
that
the
standard tension of
the
bobbin
thread
tension
cotton
the
case will be fallen
slowly when holding the end of the
/ K
Weaken
A
Lower
thread
/
canbeadjusted
screw
A.
tension
by
threadasshowninthe
In
cases
of
light fabrics . .
medium
are
best
fabrics
provided.
10
20
of
Fig.
20g
30g
Rotation
bobbin
(10~log)
thread
thread
^Precaution
Lubrication—1
Before
the
ing
ume
would
plenish oil
starting
position (K) of oil tank. While
you
are requestedtocheck
periodically,
come
less
upto
to
the
before
operate
and
than
startingtooperate^
pour
in case
the
position
position (H).
L Oil
screw
oil
operat
the
oil vol
volume
removing
3. Adjustment of lubrication to the hook
Loosen
to
to
tighten
loosen
the
nut®
and
more
less
Loosen
turn
the
screw
upto
(L) re
2.
Lubrication
When starting
to
sew initially and after
kept idle for a long time without
is essentialtooil enough
holesinthe
Condition
While
sarytocheck
tion
through
red
of
oil
operating
the
Rubber
plug
colored
lubrication
the
the
condition of oil lubrica
oil check
4. Replacementofoil filter
In
case
oil
back
out
of
order
flow
duetowaste
through
rubber
machine
window.
capability
plug.
it is neces
Oil
window
becomes
thread,
starch, etc., clean or replace the filter
fixedonthe
endofoil
back
flow
using
the
check
fabric
pipe.
it
oil
5.
Periodical
*
Remove
clean
Feed
the
cleaning
the
feed
dog
throat
dog.
Tighten
svy
plate
and
* Lay down
and
clean
TlknfuwtfaS/C—
Oil
flow
the
machine head
the
hook.
ol ^
back
pipe
Hook
* Lay
and
screen.
Oil
pump
screen
Oil
flow
down
clean
back
pipe
y
Filter5mm
the
the
about
machine head
oil
pump
^
Specifications^-
MODEL
For
Speed
Needle
Presser
Max.
bar
foot
stitch
stroke
lift
length
Spaceatrightofneedle
Hook
Zigzag
actuator
Max.
widthofbight
Needle
Reverse
lever
LZ-710.11
regular
4,500
32.3
7
4
mm
mm
mm
260
mm
DP2-57
eccentric
0 ~ 5
Schmetz
zigzag
s.p.m.
(1-9/32")
(9/32")
(5/32")
(10-1/4")
(auto-lubrication)
mm
(0 ~
5/32")
19:13
SKF
Singer 135x7 #11
Organ DPx5 #11
equipped
70
LZ-760-11
3-stitch
3,500
same
same
same
same
same
grooved
zigzag
s.p.m.
cam
overall9mm
same
135x7
DPx5
same
#11
#11
(11/32")
LZ-760-11-D
Blind
stitches
3,000
s.p.m.
same
same
same
same
same
grooved
0 ~ 5
mm
same
135x7
DPx5
same
zigzag
cam
(0~5/32")
#11
#11
A
MITSUBISHI
HEAD OFFICE MITSUBISHI DENKI BLDG MARUNOUCHI. TOKYO
ELECTRIC
CORPORATION
100
TELEX
J24532
CABLE MELCO TOKYO
WT00526X02
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