Mitsubishi DV-440 Instruction Manual
MITSUBISHI
INDUSTRIAL
SEWING
MACHINE
Model
Thank
you
you
for
your
will
read
through
A
MITSUBISHI
purchaseof"Mitsubishi"
this
manual
book
for
ELECTRIC
machineatthis
your
long
periods
time.
using
CORPORATION
We
efficiently.
hope
(
Main
parts
nameofmachine
(8)
(9":
(10)
(If) (1^
head
y
Nee(Jle
0
Presser
(2)
Presser
(3)
Needle
(4)
Presser
0
Needle
Presser
@
Crank
(8)
Arm
(9)
Oil
0
Presser
©
Presser
Upper
®
0
Thread intakeplate (||)
bar lower
bar
lower
bushing
bushing
bar @
bar
bar
bar
bar
shaft
connecting
lifting
upper
upper
front
stud
guide
bushing
bushing
bearing
ring
adjusting
spring
thread
butterfly
tension
nut
regulator
Housing
Balance
wheel
Armshaft oil tank
Under
thread
@
@)
Timing
Lower
inclined
belt (g)
pulley
guide
Lowershaft back bearing @
Ring
nut 0
(31)
pipe
# (|
0)
(27)
(26)
(25)
Under thread guide pipe (lower) (4^
(i|)
Under
thread
0
Under thread take-up
Lowershaft center bearing
®
Looper
®
Feed lifting rock arm l5^
®
Oil
@
®
*|J)
®
®
(0
@
(3^
(3^
gauge
Looperrockarm
Looper
Lower
Looper
Connecting rod (|^
Ball
joint connecting rod 0
Rock feed arm slide block (5$
Eccentric
Looper
Looper
tension
recess
fork
rock
cam
shaft front
rocking
bearing
arm slideblock 0
pin 0
shaft 0
holder
Looper
Upper
pulley
Arm shaft back bearing
Upper ring nut
Arm
shaft
regulator
Upper
thread
Upper thread guide (A)
@
(aT)
(4i^
(4^
(0
(0
(5|)
0
0
0
(0
(0
Needle
Upper
Needle
Upper
Needle
Needle
Presser
Feed
Feed
Loop
Looper
Feed
Feed
Feed
Looper
Under
Lower
Lower
bar
crank
thread
crank
thread
bar
clamp
foot
dog
rock
arm
enlarging
recess
lifting
rock
cam
rock
regulator
recess
thread
shaft
housing
guide
take-up
guide
guide
arm
bearing
rock
cam
take-up
thread
(B)
rod
fork
guide
(
Howtouse
1.
Mountingofmachine
(1)
Placearubber
in
the
backofthe
on
the
rear of machine and on the right side
of
the
cover base for
the
machine
head
cushionineachof2
bed
and
mountafixture
the
balance wheel, each
with a screw and spring washer, (see Fig.)
}-
holes
3.
Threading
Fig. 1
Fig.
4A
Fig. 4B
Hole
for
presser
lifting
chain
Oil
cover
2.
Howtoattach
needle
Note: Before making
ment.
switch
by all
means.
insert
the
needle
needle clamp and tighten
the
long
groove
sideofneedle
Fixture
Rubber
cushion
the
following adjust
off
the
upto
the
the
screw keeping
power
bottom
toward
Cover
for
balance
source
you.
of
whee
base
Fig. 2
Fig. 3
Lower
thread
guide
plpe(inclmed)
\ U2M
(2) Passthe thread through inlet (L3) of the
under thread inclined guide pipe and take it
out
through a hole in the side by means of a
pincette and then, after opening the thread
guide cover as shown in Figs. 5B and 6B,
pass
the
thread
through
the
side
hole
outlet (L4) of the guide pipe and put the
thread inside the pipe through the slot ex
tending between the above mentioned 2 side
holes in the pipe.
Pass
the thread through
under thread guide pipe (L) in the same
mannerasthe
Fig. 5B
L7 L6
above.
Under
Guide
thread
, .
(lower) ^
and
Need
clamp
e
Set
screw
Long
toward
groove
you
Fig.6A
Cover
for
thread
guide
^
LIT
L10
Fig.
6B
h
\J
L7
"Pin
_
^'
PresserUll
"11
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