NLI DHR-6 User manual
NEWLONG INDUSTRIAL CO., LTD.
BAG
SEWING
MACHINE
I
No.1
For Operator Safety
Thank you for purc h a s ing t he N LI
Model DHR-6 Bag Sewing Machine Head.
• This
manual
contains the instructions
and
precautions
for
using
the
Model
DHR-6 Bag Sewing
Machine
Head. Be
sure to read and understand this
manual
before use and
use
the
machine
correctly.
• Keep this manual near
the
sewing machine for easy
reference.
Be
sure to attach this
manual
to the
machine
when
lending
or
transferring
it
to
another person
or
company.
• Please orderthis
manual
from
the nearest NU
office
ifit is
lost.
• The contents
of
this manual are subject
to
change
without
prior notice
for
improvement
and safety purpose.
&Hazard
of
Being
Caught
in the
Machine
• Be careful, when
YoU
insert a bag to
be
closed into
the
sewing
machine, or your fingers
ma:y
be caught
in
the
machine between
the
presser foot and feed
dog.
•A·
Hazardous·
mark
is attached to the
machine.
When
sewing, be sure not
to
touch on
the
machine.
~
Hazard
of
Being Caught in
the
Machine
• A
Needle
Bar and
Needle
Thread Take-Up are
moving
at high speed.
A•
Hazardous"
mark
is attached
to
the
machine. When the
machine
is operation, keep fingers
and yourself
away
from
the
Needle
Bar and
Needle
Thread Take-Up.
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• The instruction manual and parts
list
is subject
to
change
without prior notice.
•
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From the Library of Superior Sewing Machine & Supply LLC
WARNING
PERSONAL
INJURY
MAY
RESULT
IF
THE
FOLLOWING
SAFETY
PRECAUTIONS
ARE
NOT
OBSERVED.
1.
BE
SURE
THE
AREA
SURROUNDING
MACHINE
IS
FREE
OF
ALL
HAZARDS
SUCH
AS
FIRE,
WATER,
OIL,
RUBBISH
OR
ANYTHING
THAT
CAN
CAUSE
INJURY.
2.
DO
NOT
OPERATE
MACHINE
IN
AN
EXPLOSIVE
AREA
OR
UNDER
WET
CONDITIONS.
THE
MACHINE
IS
NOT
AN
EXPLOSION-PROOF
TYPE
NOR
WATER-PROOF
TYPE.
3.
DO
NOT
OPERATE
MACHINE
BEFORE
READING
INSTRUCTION
MANUAL.
4.
DO
NOT
OPERATE
MACHINE
ON
VOLTAGES
OTHER
THAN
SPECIFIED
FOR
THE
MACHINE.
5.
BE
SURE
MACHINE
IS
CONNECTED
TO
BUILDING
ELECTRICAL
SAFETY
GROUND
(EARTH).
6.
BE
SURE
POWER
(AND
A
IR
SUPPLY)
IS
OFF
BEFORE
PERFORMING
MACHINE
MAINTENANCE,
PARTS
REPLACEMENT,
ADJUSTMENTS
OR
CLEANING.
7.
DO
NOT
OPERATE
MACHINE
WITH
GUARDS
AND
COVERS
REMOVED.
8.
DO
NOT
TOUCH
KNIFE,
NEEDLE,
PULLEY,
BELT
AND
MOVING
PARTS
WHEN
MACH
I
NE
IS
IN
OPERATION.
9.
BE
SURE
MACHINE
IS
PLACED
ON
A
SMOOTH
(LEVEL)
SURFACE
WHEN
PERFORMING
MAINTENANCE,
PARTS
REPLACEMENT,
ADJUSTMENTS,
CLEANING
OR
STORAGE.
10.
BE
SURE
THE
MATERIAL
TO
BE
SEWN
OR
CLOSED
COMPLIES
WITH
THE
MACHINE
SPECIFICATIONS.
11.
DO
NOT
USE
SPARE
PARTS
OTHER
THAN
"
NL!"
GENUINE
PARTS.
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From the Library of Superior Sewing Machine & Supply LLC
Identifying and Ordering Parts
Cautions When Using the Machine
Maintenance
Where the construction permits, each part
is
stamped with
its part number. On
all
orders, please include part number,
part name
and
model name
of
machine.
Safety Rules
To prevent personal injury:
•
All
power sources to the machine must be turned
off
before threading, oiling, adjusting or replacing parts.
•
All
cover and guards must be
in
position before operating
machine.
•
Do
not tamper with safety cover, guards, etc.,
while
machine
is
in
operation.
Safety Precautions
1)
Always
turn power off before threading, oiling, and
adjusting the machine or replacing parts.
2)
Wear safety glasses.
3)
Make
sure, before starting the machine, that
all
covers
and shields are
in
place and closed.
4)
Do
not touch on the machine when it
is
run.
5)
Turn power
off
and make sure the cutter does not operate
before you put your fingers under the cutter blades and
the needles to adjust.
6)
Do
not touch on the machine when it
is
run.
• Please keep
in
mind
to handle the machine carefully and to
maintain the machine
in
good condition.
• Thread fuzz or dust must be cleaned
with
air or brush on
throat plate,
in
the groove of feed dog or around looper
after the day's work.
• Wipe the area easy to rust with
oil
cloth.
• Check the machine for loose screws and tighten them, if
any, once a month.
• Good
maintenance
will
prolong
the
machine life.
ii
•
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From the Library of Superior Sewing Machine & Supply LLC
CONTENTS/
~
{X
1.
Specifications/fr~
--------------------
2
2.
Threading/*ill,
3
3.
Lubrication/~nb 4
4.
A<tjusting/iffljg
-------------------
5
1.
Setting
the
Needle
~fO)Joli.tn)!-----------------5
2.
Setting
the
Overedging Lower Looper fitJ,tJ<LJffl""FJL,-1{-0)~;E'. 6
3.
Setting
the
Needle Bar Height
~t,$0)
~
~
6
4.
Setting
the
Overedging Spreader
fiti,tJ<LJffiA:1v•;,1t-O)~JE'.-------7
5.
Setting
the
Thread Retainer
~H.!JI]=\=-
A
O)~JE'.-------------9
6.
Setting
the
Combined Chain-stitch Looper 2
m:J1a1,,Jt.,-1~-0)~JE'.-----9
7.
Setting
the
Combined Chain-stitch Cross Looper 2 mJ1a1,
'~H.IJI]=\=-
B
O)~;E'.
................
10
8 Setting
the
Needle Guard
~t:fl-~'O)~;E'.--------------11
9.
Setting
the
Lower Feed
Dog
""F~LJ~O)~JE'.-------------11
10.
Installing
the
Throat Plate Support
~HJ.i~70)1fXi-t-----------11
11.
Setting
the
Upper Feed
Dog
..t~
LJ~O)~;E'.
12
12.
Setting
Presser
Foot
Presser
:j:l:jl.I
~O)
ff.jJ
~;E
13
13.
Setting Edge Guide and Stitch Tongue
JE'.:ml=JE'.:mffiO)~;E'.
14
14.
Adjusting Stitch Length a
El
~;O)~;E'.
14
Parts
List/$~~····························································································································15,.,.,,,.,33
Numerical
Index
of
Parts/
I
~-'-Y~
S1
·····················································································34,35
Diagram
Screw ,Nut &
Washer/*~
..
T'.:11--
..
r'J':J~-'t'-
···················································36
From the Library of Superior Sewing Machine & Supply LLC
1.
Specification/
f.tW
Seam
specification:
a1.,~it
401,502
SSa-2
Feed:
m':.11.iit
Plain
feed with upperfeed
..I:
"Fm
LJ
Stitch
range:
a1.,E1•
6-13mm
Overseam
Width:
:fl:fl•J•
12mm
(special order
15mm)
Seam
width
overall:
••
1,\ltl
17mm
(special order
20mm)
Sewing
capacity.
.l,\jJ:
Max.
22mm
Needle clearance:
ttrii&:1111
5mm
Needle
type
and size:
tt
UY9853G430
Thread:
Kt
Polypropylene
6000
Denier ;l':1
J:1cn:v!,,
6000
"T=.-JL,
Maximum
apeed:
Aili!l&e
1,400rpm
Working
Speed:
•'*•&11&•
1,200rpm
e
DESCRIPTION
Double
needle,
plam
feed,
tlat bed,
four
thread safety
overseaming stitch
machme.
(Standard :
for
Container bags
with
filler
cord, upper and
lower)
e
APPLICATION
For safety overseaming
from
light
weight
ofPP/PB
woven
cloth
bags
to
heavy
weight
of
contamer
bags.
•U
2** 4**
~aff#!J~~1,,~v~
-~tt~t.t::J~'t"ti
~
*Jfl
•
iilJfl
pp
i!2fl~O)-*'t,~;::J~77"~fl~O))J1tJi~0)-4*/0)
ai/;f/!J'tc~-1,
,Jf.1
• Stitch without Filler Cord
(
~,*~
~)
• Stitch with Filler Cord
(~*.i}IJ)
m~
TT12or15mm
] 0IQj
'{°'2omm
f
smm
2
From the Library of Superior Sewing Machine & Supply LLC
2.
Threading/*
ii
L,
T*-(2)
Upper
Filler
Cord
(Mi~d
:)
Lower Filler Cord
(~*-1')
Fig.1
3
From the Library of Superior Sewing Machine & Supply LLC
3.
Lubrication/M
;Eb
Oil
machine
at
red
marked
holes
daily.
Before starting
machine,
make
sure
sightfeed oilers
are
tilledwith
oil.
If
they
are
not,
refill. If
machine
is
run
dry,
it
will
be
bound
or
cause
troubles.
Uae
white
spindle
oil
#60 or
equivalent
(kinematic
viscosity
8
to
12
cStat
40"C).
Example:
Shell
Tellus
Oil
010.
fi
1:1,
Jlliliairul.:.~i*$~-?O)#lt''lt1':ti~;~ilbL:t=<~~
1,,0
-~fifl;::;;t-.-(7-l;::;;t-,f/v;bSJv:,"'(l,'¢tJ~Ji1Jl,, /.Pft
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"'C<~~i.,
'o
~ilbilq;;+~"tiT~
..
llilfi~#~ia:~~t,
..
'M(liJO)_ffil!;I~
tt~rt-tti~;,
~-i*~Ufiit,"'C<t!~li'.,
;;f-.-(
Iv
f';t
SA
t":.,,
f:
Jv#60
ffi
~
0)
;;f-.-(
Iv
(
lb*6
lf
8-
12cSt/40"C)
~~U<~~1,
'o
(-011
:Vxlv'77A::t-.-f
1v
ClO)
rOiler
' Lubrication
*SjeJ
Fl
•.
2
4
From the Library of Superior Sewing Machine & Supply LLC
4.
Aqjusting/UJ m
4-1.
Setting
the
Needle
(Fil\.lrea 3 and
4)
1)
Remove
the
top
cover, upper feed dog, and presser foot
before adjusting
the
sewing machine. Turn
the
pulley
forward until
the
needles reach
the
highest position.
Remove
the
needles.
2) With
the
needle holderkept in
the
highest position, insert
new needles @ and © into
the
needle holder
as
deep
as
they
will go.
The
needle point should face downward
with
the
shank
put
into
the
holder.
The
longgroove on the
needle shouldface in
the
forward direction,
or
toward
YoU.
Fix
the
needlewith screw
@.
Besure to apply
the
screw
on
the
flat on
the
needle.
3) Having installed
the
needles, turn
the
pulley forward and
check
that
left needle © enters
the
throat plate hole
at
the
center.
4)
To
adjust when necessary,
turn
needle
bar
@ after
loosening screw © on
the
needle
bar
coMection.
Tighten screw © after adjusting.
R
Needle Center
itZ
Fia.3
5
4-1. tf-O>af..tlt(Fig3,
Fig.4)
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R
Fls.4
From the Library of Superior Sewing Machine & Supply LLC
4.
Acliusting/111
n
4-2.
Setting
the
Overed&inc
Lower
Looper
(Figures
5)
1) Remove
the
base cover.
throat
plate, feed dog,
throat
plate support and needle guard.
2)
Insert
lowerlooper @ into
the
hole
at
the
rear
of
looper
drive @, and
h1111d
tighten screw ©.
3) Turn
the
pulley
foJward
until
the
needle is in
the
lowest
position.
At
this time, check
that
the
lowerlooperpoint
is
6mm
from needle ® center.
4)
To
adjust when necessary, Loosen
nut
® holding
the
looper drive and ball joint
@,
and move
the
looper drive
so
that
the
looper point is
6mm
from
needle
center.
Tighten
the
nut
after adjusting.
5)
Fix
the
lowerlooper in placewith screws ©
and
@.
6) Turn
the
pulleyforward
to
make sure
that
the
looperpoint
is
0.1mm
lrom right needle @
when
the
looper passes
behind
the
needle.
7)
To
adjust when necessary, move
the
looper drive
back
and
forth after loosening screw
@.
Tighten
the
screw when
the
0.1mm
gap
is achieved.
4-3.
Needle
Bar
Height {Figure 6)
1)
Tum
the
pulley
forward
until
the
looper @ point is
5.2mm
from
the
center
of
right needle
@.
2)
Check
that
looper bottom coincides with top
of
needle
hole.
3)
To
adjust when necessary, move needle
bar
@
up
and
down
as
required after loosening needle
bar
connection
screw@.
Tighten
the
screw after adjusting.
Note
When
you
have
changed
the
needle bar position, re-check
needle position relative
to
the
needle hole
on
the
throat
plate.
[see
paragraph
4-1.3)]
6mm i
~ ,
(A~ I'
II,- .
'--7
Flg.6
8
4-2.
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Fis.a
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i~
-
,t
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o:>I
Needleholetop
&t7'J:1;o:>
II
From the Library of Superior Sewing Machine & Supply LLC
4-4. Settingthe Overedging Spreader (Figures 7
and
8)
1) Remove loop guide © before installing spreader @
on
spreader lever @. This faciltates visual comfirmation
of
your adjustment.
2) Insert
the
spreader into
the
spreader lever. Hand tighten
screw@.
3)
Turn
the
pulley forward to check
that
needle rear is 0.05
to
0.1mm
from spreader point when spreader point @
passes behind left needle ©. At this time, spreader rear
® must clear
the
front
of
right needle @. Tighten
the
screw after adjusting.
4)
To
adjust
the
gap betweenneedle
rear
and
spreaderpoint.
move bearing for spreader lever shaft @
up
and
down
after loosening screw @ on bearing
@.
Remember to tighten
the
screw after adjusting.
5) Tighten thread hook © on
the
spreader with screw
(D.
6) Turn
the
pulley
foJward
andadjust
the
threadhook
so
that
it
will
not
touch
the
rear
of
the
right needle.
C
7
4.
Actjusting/lJI
fl
4-4. flt)\1,tl:)1');;~::1v-:1~-0)il:,!(Fig.7,
Fig.8)
1)
trL,1,
'A:1'Vo/~-@~A:1'vo/~-i:r@l:J&t)#Jto
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6)
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0
L
Fls.7
From the Library of Superior Sewing Machine & Supply LLC
4.
Actjusting/11
fl
7)
Tum
the
pulley forward and adjust
so
that
the
spreader
recess
is 3.6mm from needle
center
when
the
spreader is
in
the
most fo.nvard position.
8) To adjust when necessary, move drive lever for upper
spreader Q) right and left after looserung screw ®.
Remenber
to
tighten
the
screw after adjusting.
9)
Tum
the
pulley once forward to make sure
that
the
spreader does not contact any parts.
lO)Set
the
ball joint
center
distance
at
99mm before
proceeding
to
the
following steps.
11)When
the
spreader motion is
too
large and
the
spreader
touches
other
parts,
twn
joint rod @
as
appropriate
after loosening
nuts
® and ®.
Note
Nut
®
is
left:
threaded.
12)Re-check the gap between
the
spreader recess and
needle center.
Tum
the
pulley oncefonnird
to
make
sure
that
the
spreader clears all parts.
13)Tum
the
pulley
forwlll'd
to
make sure
that
spreaderpoint
@
just
clears lower looper @
at
its
back
as
the
spreader ascends.
To adjust when necessary, move the looper drive right
and left
after
loosening ball joint nut (I).
Be
sure
to
tighten
the
nut
after adjusting.
Note
Re-check
the
needle
bar
height
after
a(tiusting
(see
paragraph
4-3).
@ 3. mm
f-
Fis.a
8
7)
7'-!J-t-fll,
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3.6mm.
l;:
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8)
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:¥!J
0)
ffilili:iffiilL,tJ:JttLl'ffJ:l'.J*-lt
Iva
illliJ~~--tif.l~l'i,
if--,v~a..-(~}-0)-j-:)f
l-(I)t-a
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L*To
[~-]
=co•••
..
tt•co•~ifli7::c.-:.,~1.,
-c<t::~1.
,0
C4-3illl)
From the Library of Superior Sewing Machine & Supply LLC
l)
Th&
thread retaineria deaigned
to
keep thelooper thread
just
bdbrethe looper
eaten
theneedle thread loop.
2) Insertthread retainer @ into
apreader
lever
ahaft:
®·
811d
hand
tisht.en
screw
-©
(the
screw
should
hit
the
aat
ontbs spreader levershaft).
3)
Allluat
the
gapbetween looper andtlU'lledretainer
to
1mm
when
tM!6d
retaln8r @
Is
)1st
to
ii.art
moving
upward
811d
looper @ b In
the
right
1D11st
position.
Hand
tighten
screw@.
4) Tum
the
pU!ley
furward
until the looper and thread
retainer come closest
to
each
other.
The
pp
at
tbiB
time
muat be
0,1mm.
To
adjut
when
nece.,sary,
move
thread
retain«
up
lllld
down
118
required after loosening
ICl'eW
©.
Be
sure
to
tishten
the
smw
afteradjusting.
5) Tum
the
pwley
r-ml
until
thNed
mainer
isill
the
most
upward-fiiclngposliloo. Atthis time, threadretainer
point
should be
1mm
below
tbs
throat
plate
bottom,
To
adjust
when
IIIIC8ssaty,
turn
spreader
l8V8r
ahad @ as
appropriatealtar
looslllllng
acrew
@.
Be
aun,
to
tighten
thescrew alterad,luating.
4-«.
Setq
tho
Combined
ci.in-ttiteh
l..oopor
(F"(81.1.,.
10)
l)
welt
looper @
ill.to
the
hilt
hole
on
looper drive
@.
Hand
tighten
satN
©,
2)
ThB
looper point should
ho
u cln,e
to
let\ needle ©
u possible without touching
when
It
p1LSS011
behind the
needle. To adjust
when
ne0118slll)',
re-tlahten
sat screw
©, and tightenscrew
@.
Fl
• .9
9
4.
Acliu•tinr/111
•
H.
MIit
AIDitt<F'l,9)
0
*ll!
A liJ'v-.1~-~J:,*(1),v-:,'l,:J,,011flt1J"f.1\t-
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2)
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3)
/kilt
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6)
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10)
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2) 1v-.1<-o,~Mt.6'1c.OJIOltf-@O)tl00ilii~BiA-tt,8*,
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-r
<
'f!~l,
'·
I I
F1a.10
From the Library of Superior Sewing Machine & Supply LLC
4.
Actjusting/11
fl
4-7.
Setting
the
Combined
Chain-stitch
Cross
looper
(Figure
11)
1)
Set
the
ball joint
center
distance
at
51mm.
2) Ball joint @ must be installed
at
the
center
of
the
slot
on
the
drive lever for cross looper.
3) Insert
cross
looper © into
cross
looper lever @.
Hard tighten screw
@.
4)
Hand tighten screw ®
to
hold
the
cross looper lever
@.
Turn
the pulley forward and adjust such
that
the
cross
loopercoincides with
the
leftedge
of
left needle ©
when
it
has reached
the
left most position (Figure 11-a).
5) Turn
the
pulley until
the
cross looper reaches the right
most position and
the
looper is moving
to
the
right.
At
this time,
the
cross looper point must
enter
the
looper
groove
at
the
center.
To
adjust, move
the
cross looper
lever up and
down
as
appropriate {Figure 11-b).
6)
The
gap between needle and
cross
looper should
be
0.3mm
when
the
cross looper moves
to
the
left and
approaches
the
right side
of
the
left needle most closely.
Adjust when necessacy after loosening screw ® {Figure
11-c).
7) Cross looper mng is adjustable
by
moving ball joint @
along
the
slot
on
drive leverfor cross looper
@.
Note
The cross looper should
never
t.ouch any
other
part.
4-7. 2•11a1,
'ktlJ•
B
O>ltlE(Ag.11)
1)
~-,1,,~41/f-(1.)~l'ffl•'j:
51mm
l:"f!o/f-TQo
2)
v/~-@(7.)-J:~(7.)tpl'ffl
(7.)i'ftft"t'
llit
~#lt*-t
O
3)
*ill~
B©t,*M~
Bii'@l::~l,~h-.:f~@l:"t"-Oi
-~l,*To
4)
*ill~
B ii'@~.:f~®"t'-flilli~L,7'-!J-~1,,jj!RJ
l::IIL-*-to
/AtJIJ;\=-
B
:61Jitt>:tr:·1PJH::lw,tt_,
:tr:-IJ(7.)tf-
(b)
(7.):ir:
fllUim
t-it"t
QJ::j!;::.ft.L,'i-t0 (Fig.11-a)
10
5) 7"-!1-t,DL,
"t"
IAl'l~ B
~~:l&tti-fA~l=llnt.:_,
Jv-
.rt-litiiPJH::lblt
,,:-1,,
'*To
:.(1.)~l::11,,-.,~-(1.)iftQ)tp
lllll=*tfill~
B (1.)~Q:6~AoJ:;1::*M~B
i;'t,J:rl=
IIJi)ll,
"t"PlllL-*i"0 (Fig.11-b)
6)
*t!ll;\=-
B
~i:tr:,IJ!U::lw,
-C,
:tr:-fA~(7.)tf-(y(7.)ti°-fJtlffii
att
ffUli:L,'ft.,
ft~*lll~
B
~(7.)!Jtrifl~S
0.3mm
J;:f,toJ:;l;:
*~®~~"'CPJ-l,*To
(Fig.11-c)
7)
*ilJ~
B
(7.)ffitt,iMlf:l:,
*-1v-::):1-{1/~@(1.)Jlit#&JRt,
*tfll;\=-
B v.1{-@
(7.)~1e,;:m~
"t"RJ!:
i"'o-=.t"t'PJ•
ff'iTa
Fls.1
1-a
A
Fls.1
1-b
Fls.1
1
FIB.1
1-c
From the Library of Superior Sewing Machine & Supply LLC
4-8. Setting
the
Needle
Guard
(Figure
12)
1)
Needle guard @, in
the
most.retractedposition, must
be
0
to
0.05mm from needle.
{Note that thread skipping is prevented when
the
needle
guard
is so adjusted as
to
push
the
needle about 0.1mm
when
sewing thick materials.)
2) Adjust
the
needle guard back and forth after loosening
screw
@.
Note
Re-setthe
needle
guard
when
you
have
changed
the at.itch
width.
4-9. Setting
the
lower
Feed
Dog
(Figure
13)
1)
Lower
feed dog @ must
be
centered in
the
slots
of
throat plate @
both
longitudinally and laterally.
2)
To adjust,
move
feed rocker © right and
left.
as
appropriate after looserung screw
@.
Tighten
the
screw
after adjusting.
3)
Tum
the
pulley
forward
until
the
feed dogis in
the
highest
position.
At
this time,
the
feed dog
rear
must be
1.2mm
above
the
throat plate.
4) Adjust
the
screw such that
the
height
of
1.2mm
is
maintained when
the
feed
dog is pressed against screw
® on feed
bar
@.
Now
fix
the
feed dog with nut
@.
4-10.
lnatalling
the
Throat
Plate Support(Figure 13)
Install
throat
plate support @ with two screws (D.
Check that
the
throat plate support does not contact
any
other
parts.
B A
@@
o
di
Fla.12
11
4.
Actjusting/lJI
fl
4-8.
ttfl-t:
O>S:JE(Fig.12)
1)
ttP-~@titlit°f>ill.i~L~llt;.tt~O)ptlljf'j;
o-o.05mm
1:tt?.>J:5PMIL-c<r..:~1,
\o
({RL.J!,:4*,0).-fl,f:,:,
tf-tJl:flll~tl,
"t"
0.1mm
~btrffiUtl:
llittJ#lt
7->~
El
MVRo.Il:l:ti~;t-to )
2)
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[~-]
a1.,
El
•~tU!Lt::•ri
..
ttn-i:talJL
~
<t::~1.
,.,
4-9.
"'Fm'J*O)ti:JE
(Fig.13)
1)
"f~!J•@t.ttt~@O)fttO)tp"t', ~!J•~tt~~O)!Uf(
fllb)1ic;ti:1$~lr.t~oJ:;lr.lUfEL-C<te~1,
'o
2)
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3)
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1.2mm
iij<ti:0J:;1r.WJIL
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t..,,
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(Fig.13)
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From the Library of Superior Sewing Machine & Supply LLC
4.
Actjusting/11
fl
4-11. Settingthe Upper
Feed
Dog
(Figul'lls
14
and
15)
1) Install upper feed dog @ and presser foot ©.
2) The upper feed dog should freely move in
the
presser foot
slots without
any
contact.
3) The upper feed
dog
must be
in
the
lowest position when
lower feed dog @ is in
the
highest position.
At
this
time, a small gap should existbetween
the
upperand lower
feed dogs.
4) The upperandlowerfeed dog feed
work
simultaneously.
In
Figure 14-a,
the
upper feed dog
rear
must
be
positioned
between
the
5th
and
6th
tooth
from
rear
of
the
lower feed
dog when
the
upper feed dog is in
the
lowest position.
To
adjust, loosen screw @ and move
the
drive lever back
andforth. Tighten
the
screw after adjusting.
5)
To
adjust
the
gap between upper and lower feed dog,
Loosen nut ® and turn screw @ inwardly
to
increase
the
gap, Turn screw @ outwardly
to
decrease
the
gap.
Tighten
the
nut after adjusting.
6)
To
eff.'ect
the
same amount
of
motion for upper and lower
feed dog, Loosen ball screw ® and
move
ball joint
(M)
back and forth in
the
slot
of
rocker lever
@.
Moving
forward
decreases
and
moving
backward
increases
the
motion (Figure 15). Tighten
the
ball screw after
adjusting.
7)
The upperfeed dog sharply rises in its return stroke. This
is necessary to prevent pulling
of
work in
the
opposite
direction
of
feed.
8) The upper feed dog @
teeth
must be
3mm
inside
the
presser foot when
the
feed dog
is
in
the
highest position
(Figure 14-b).
9)
To
adjust, Loosen screw @ and raise slide block
Q)
to
lift
the
upper feed dog. Lower
the
slide block
to
lower
the
upper feed dog. Tighten
the
screw after ad.justing.
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Fig.15)
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Fls.16
12
From the Library of Superior Sewing Machine & Supply LLC
4-12.
s.ttil'IIS
PN•••
Faot
Preaaure
(Figure 18)
1)
Remove
the top cover.
2)
Loosen
lock
llUt @
and
tum
screw
@
outwanlly
so
that presser foot spring, upper and lower, © and
@,
are completely pressunr-jree.
3)
Collars @
1br
springs
©
and
@
should
be
set
79
and
104mm
below
the
arm
top
as
shown
in the ffgure,
respectively. Fixthe co
Bars
with screw ®.
4) Set collar @
61mm.
below
the arm top.
CoBar
@
prevents
the
spreader
and
needle holder
&um
hitting the
presser foot
when
the
preaser
foot
and other
parts
ere
lift;ed
with
the
preBBer
foot
lifter
lever.
5)
Turn the
pulley
forward to
hrins
the
lower
med
dog
just
below
thethroat plate.
6)
Turn
screw
@
inwar<lly
to
apply pressure
to
the
l)fe8Ser
foot
springs.
Tighten
nut @
when
an
appropriate
pressure
is
applied
to
the springs.
7) Set
up
the top cover.
4.
Aqjustinc/111
•
4-12.
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16)
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(1J~ft~::,r:b'7-t!*~®~llit!l#•t
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Fig
.
16
13
From the Library of Superior Sewing Machine & Supply LLC
4.
Actjusting/11
fl
4-13.
Setting
the
Edee
Guide
and
Stitch
Tongue
(Figure
17)
1)
Set
the
Edge Guide @
on
the
BaseCover byScrew @
as
near
as
Possible
to
Presser Foot, but never touch it.
2) Set
the
Stitch Tongue © by Screw
@.
3) The thread loop pass through the Stitch Tongue
and
on
the
Clothand it should beretaineduntil
the
Needle cango
into
the
thread loop.
Note
The
spreader
never
touch
the Stitch
Tongue.
4-14.
Change
ofStitch
Length
(Figures
18)
1)
Standard setting of
the
stitch length
of
the machine is
10mm.
2) When changing standard stitch length, please adjust
the
Stitch Regulating Stud @ which is
in
the Feed Rocker
@ under
the
machine Base. Loosen Nut © and lower
the
Stitch @ Regulating Stud
to
lengthen the stitch and
raise to reduce it.
3)
Tighten Nut © loosely and run several pieces of
machine in order
to
confirm
the
required stitch length.
Finally.
Fasten Nut ©
firmly.
Note
Reset
the
Needle Guide and Upper Feed, when vou have
changed
the
st.andard
stitch
length.
C
18mml
------.
ll
Fls.17
14
4-13.
l!M~l!MJltO)ltJE
(Fig.17)
1)
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C
From the Library of Superior Sewing Machine & Supply LLC
ORDERING PARTS
1.
Description ofeach part and its stamp number
is
described in this parts list. Screws and nuts for parts are
shown adjacent to the relevant parts. When ordering parts, describe clearly stamp number with its name ofpart.
2.
The parts which have no
Ref.
Number can not be delivered independently; always oder it as an assembly.
3. A set ofassembled parts
is
represented by the stamp number ofits
main
parts.
4. The last figure
on
the parts stamp number advances on each improvement ofthe parts.
5. Parts
No.
described
in
[ ] of Remarks means old parts
No.
* The parts list
is
subject to change without prior notice.
1.
:::'i±JtO)~f'i,
'tf~JlQ:ffi:%,
'tf~JlQq;
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2.
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L,
(~
:ffi:
Ref.No.)
0)
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JlQ
f'i,
~
f*
Jl&,'c
't"~~it
Iv
0)
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~
~
T-'5
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ff~
JlQ
(*ll.
ff~
JlQ)
~
::'.'
i±Jt<tC:~1,,\0
3.
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4.
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.:t0)$£;o\clf(Jll~n-'5:ffB/tt;:,
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O)'t"::'.'TfJ.<tt~v
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5. tmi~flg:rO) [ J i*H'i[S/{-o/:ffi:%'t"To
*
-*iB~~lir&:&©t::d.>71S"t.J:(~i!"t"Q.:.ctJfif.>1,J'*"t"
o
CONTENTS/
§
?x
01
OILER
AND
COVER PARTS
.................................................................................................................................................................................
16
~--(7-,
jJ/'\-Mf*
02.
THREAD TENSION
AND
THREAD GUIDE PARTS
...........................................................................................................................
18
*
wlff-r
, *
:JJ
,{
J-t
Mf*
03.
PULLEY,
MAIN
SHAFT
AND
NEEDLE
BAR PARTS
.......................................................................................................................
20
7"-!J-,
:±$di,
***Mi*
04.
PRESSER FOOT
AND
PRESSER FOOT LIFTER PARTS
..........................................................................................................
22
:J'l¥.:r.~,
:J'l¥.:i:.fl-1/Mf*
05.
LOOPER DRIVE PARTS
...........................................................................................................................................................................................
24
;v-/{-Mf*
06.
SPREADER DRIVE PARTS
....................................................................................................................................................................................
26
A
7Vo/
?"'-
Mi*
07.
CROSS LOOPER DRIVE PARTS
......................................................................................................................................................................
28
/MJJ
1
J
:t-
Mf*
08.
LOWER
FEED
DRIVE PARTS
..............................................................................................................................................................................
30
r~!J,
ittliMf*
09.
UPPER
FEED
DRIVE PARTS
...............................................................................................................................................................................
32
J:~!JMf*
NUMERICAL INDEX OF PARTS
....................................................................................................................................................................
34,35
/{-o/~51
LIST OF
SCREW,
NUT
AND
WASHER
.........................................................................................................................................................
35
-*·;\
To/~,
?o/1/.Y--I'.~
15
From the Library of Superior Sewing Machine & Supply LLC
01.
OILER
AND
COVERS
PARTS
2l--17-,
.iJ
.r~
--
OO-f*
7
13
13
Spesio
l
Order
t1;1
~~
11
24
18
19
From the Library of Superior Sewing Machine & Supply LLC
Table of contents
Other NLI Sewing Machine manuals
