Newlong NP-7H User manual
NEWLON6
MODEL
NP-7A
CNP-7H1
PORTABLE
FILLED
BAG
CLOSING
MACHINE
INSTRUCTION
MANUAL/PARTS LIST
NEWLONG
MACHINE
WORKS,
LTD.
No.14
From the library of: Superior Sewing Machine & Supply LLC
CONTENTS
1.
SPECIFICATIONS
2
2.
PREPARATION
FOR
START
3
1. Oiling 3
2. Needle Setting 3
3. Threading 3
3.
START
4
4.
ADJUSTMENTS
5
1.
Thread
Tension
5
2.
Position
of
Needle
and
Looper
5
3.
Position
of
Feed Dog 5
4.
Pressure
of
Presser
Foot
5
5.
REPLACING
PARTS
6
6.
MAINTENANCE
&
LUBRICATION
7
7.
LUBRICATOR
7
1. Operation 7
2.
Maintenance
7
3.
Troubleshooting
8
8.
ORDERING
PARTS
9
NUMERICAL
INDEX
OF
PARTS
26
DIAGRAM
OF SCREW. NUT &
WASHER
28
- 1 -
From the library of: Superior Sewing Machine & Supply LLC
1.
SPECIFICATIONS
TECHNICAL
DETAILS
Speed (sec/bag) 5—6
Seam
Single
Thread
Chain
Stitch
Stitch
Range (mm.) ,
7.2
(fixed)
Revolution
(rpm.)
1,600±125
Needle
DNx1-#25
Thread (vinylon, synthetic or
cotton)
20/6
Drive
Motor
60W
Power
Supply
110,
220
or 240V., A.C.
12V,
24V.,
D.C.
(specify
one.)
50—6OH2,
Single
Phase
Net Weight (kg) 5.2 Including Thread Cone,
Shoulder
Belt.
Machine Dimension (mm.)
360(L)
x 245(W) x 315(H)
Packing Dimension (eft.)
2.5
STANDARD
ACCESSORIES
1.
Needles
DN X
1-#
25
5pcs.
2.
Thread
Vinylon
20/6
1 roll
3.
Screw
Driver 1
pee.
4.
Needle
Bar
Spanner
1
pee.
5.
Oil
1
can
6.
Carbon
brush 2 pcs.
- 2 -
From the library of: Superior Sewing Machine & Supply LLC
2.
PREPARATION
FOR
START
1. Oiling (Fig. 1)
Oilingis imperative to keep the machine in good operating
condition. Fill oil in the reservoir (capacity 45 cc). To
feed oil, push the button of the lubricator. One push
feeds 0.08 cc
of
oil, which would normally service for
several hours
of
operation. Do not run the machine
out
of
oil, otherwise it will break
down.
2. Needle Setting (Fig. 2,
3,4)
Turn the pulley until Needle Bar reaches its highest
position. Loosen Needle Bar Clamping Nut, and set
Needle in the Bar as deep as it will go.
Be sure to set a Needle with its concave part facing
correctly toward the Looper.
Fbc
Clamping Nut tightly,
otherwise
Needle
may come loose during operation and
break.
3. Threading (Fig. 5)
The machine is delivered being threaded to show you
proper threading
of
the machine, which is shown in
Fig. 5, for identification. Follow the guide numbers
1 to 6
of
Fig. 5.
® Thread Eyelet
(D Thread Tension Eyelet
(3)
Tension
Disc
@ Thread Eyelet
d)
Needle
Bar
(6) Thread Eyelet
(7) Needle
(D
Tighten
Fig-i y
Loosen
Clannp
Nut
\
Scarf
Fig.4 J
From the library of: Superior Sewing Machine & Supply LLC
3.
START
Before starting, make sure that the supply voltage accords
with the specification
of
the motor.
Hold the machine in your right hand and place your
index
finger
on the switchbutton on the handle. (Fig. 6)
Hold the bag in your left hand lightly and insert the bag
mouthbetweenFeed
Dog
and
Presser
Foot.(Fig.7)
Fig.
6 J
Switch
button
Run the machine with empty bags and make sure you
are well versed in its operation before entering into
actual operation.
Run the machine while keeping
the
bag straight. Never
pull or pull back the bag.
After closing, the thread is cut by the built-in nibbler
type
cutter.
When cutting the thread, leave at least 3 cm long extended
tail to prevent the unwillingloosening
of
the seam.(Fig. 9)
Throat
Plate
I®
Presser
Foot
Thread
Cutter
Knives
Fig.
9J
- 4 -
From the library of: Superior Sewing Machine & Supply LLC
4.
ADJUSTMENTS
1.
Thread
Tension
Thread tension is adjustable by turning the Thread
Tension
Nut.
Turn the Nut clockwise for tighter tension and counter
clockwise
for
looser.
2. Position
of
Needle
and
Looper (Fig. 10)
Looper must pass the concave part
of
Needle with
clearance
of
0.1 mm as shown in Fig. 10. Adjustment
of
the clearance can be done after loosening the screw
of
Looper Rocker.
3.
Position
of
Feed
Dog
Feed Dog should be 2.5 mm above
throat
plate at its
highest position as shown in Fig. 11. The height of Feed
Dog is determined by the height
of
Feed Dog Support
Screws(4 pcs. in all).
4.
Pressure
of
Presser
Foot
When to adjust the pressure of Presser Foot, take out
Needle
Bar
Guard
and
loosen
Screw
of
Presser
Bar
Connection. Move up Presser Bar to increase the pressure
and down to decrease. After the adjustment, tighten the
Screw firmly.
- 5 -
Needle
Looper
Screw
Looper
Rocker
Fig.
10 y
Feed Dog
Support
Screw, (1S3/16-32 x 9)
(SM3/16x32x9L)
2.5mm
Feed
Dog
Stopper
Screw
(3/16S32034)
Feed
Dog
(244111)
Throat
Plate
(244122)
Fig.
11
J
From the library of: Superior Sewing Machine & Supply LLC
5.
REPLACING
PARTS
For replacement or adjustment
of
Ball Rod, refer to
Fig. 12.
Take
out
Screw
(T)
and
disconnect
Rod
End
(2)
from
Needle
Bar
Lever
.
After
loosening
the Nut 0 ,
adjust
the
clearance
between
Connecting
Rod
0
and
Rod
End
(5) , so that
Needle
Bar
moves
in the
center
of
the clearance between the upper and lower Presser Bar
Bushings.(Needle Bar stroke is 37 mm).
To
fix
Eccentric
Cam
0 on
Main
Shaft
(8),
tighten
the
Screws
(9)
and
on
Main
Shaft
(8)
(Eccentric
Cam
0
should
contact
Spacer
(0)
slightly.).
The position
of
Needle is adjusted so that the distance
between the point of Needle (at its highest position)
and Throat Plate is 13 mm, after loosening screw on
Needle
Bar
Connection
Assembly
0 in
Fig.
12.
® Screw 11/64S40089
(D Rod End
6APOS8
(D
Needle
Bar
Lever
242051A
® Nut 1N8
(5) Connecting Rod Assembly 242011A
(D
Needle
BarConnection
Assembly
242101A
(7) EccentricCam (part of ConnectingRod
Assembly)
242011
(D
Main
Shaft 241101
CD®'
Screw
11/64S40001
O Spacer241161
Adjust
Looper
Drive
Cam
0
when
neccessary
as
follows: (Refer to Fig. 13.).
a)
Apply
the
Screws
0
and
Qf
on
the
taper
of
Main
Shaft
0 .
b)
Adjust
Arm
(B)
0 ,
so
that
Looper
Drive
Cam
0
and
Arm
(A)
0
move
smoothly.
After
adjusting,
fix
the
Screw
0
tightly.
c)
The
clearance
between
Looper
Drive
Cam
0
and
Arm
0
is
effected
by
Spring
0 .
Loosen
Screw
0
and
turn
Spring
Supporter
0 to
adjust
the
pressure
of
Spring
0 .
After
adjusting,
tighten
the
Screw
0 to
fasten
Spring
Supporter
0 .
(D
Main
Shaft 241101
®
(D"
Screw
15/64S28524
® Looper
Drive
Cam243012
® Looper Rocker Shaft Arm (B) 243081
® Looper Rocker Shaft Arm (A)243071
®
Screw
for
Looper
RockerShaft Arm
(B)
11/64S40009
©Spring 243131
® SpringSupporter 243121
®
Screw
for
Spring
Supporter
Block
9/64S40035
®
Spring
Supporter
Block
243111
(D
(D
m-
- 6 -
(D
(D
9.4mm
(D
Fig.
12 J
U(0)
(D
(D
CD
Fig.
13 J
From the library of: Superior Sewing Machine & Supply LLC
6.
MAINTENANCE
&
LUBRICATION
Clean the machine at the end
of
the day's work. Wipe
dust and other foreign matter
off
the Feed Dog teeth
Looper and Throat Plate evelets where they are easily
gathered.
Care should be taken to keep the machine free from rust,
especially when to leave it unused for some time.
Recommended lubricants are Shell X-100, Motor. Oil
lOW/30, Shell Vitria Oil 31 or the equivalent. For
operation and maintenance
of
the lubricator, refer to
Section
7.
Important
I
When adjusting
the
machine
or
replacing parts, always
disconnect
the
Electric Cord
from
the
power
source.
This
is
important
in
view
of
safety
to
the
operator
and
adjuster.
7.
LUBRICATOR
1.
Operation
The lubricator comprises a
pump
and a reservoir. The
reservoir holds max 45 cc
of
oil. (Effective oil volume
is 28 cc.)
To operate
the
lubricator:
1. First unscrew
the
reservoir cap
by
half
a
turn.
*
2. Push the button to its lowest position (stroke: 12mm).
3. When released,
the
button
will automatically return
to its original position.
4. Lastly, tighten the cap to prevent oil leak during
operation.
*
Repeated
working
on
the
button
without
first
loosening
the
cap
may
produce
negative
pressure
in
the
reservoir,
and
the
dust
in
the
atmosphere
may
be
easily
introduced
in it
when
the
cap
is
loosened.
2.
Maintenance
1. Keep
off
dust or foreign matter when to fill oil (They
may cause jamming
of
the piston arid the check valve).
2. Rate of discharge is fixed and not adjustable (0.08 cc
per push).
3. At high temperatures, grease may run along points .
This is normal, grease being used when the lubricator
was assembled in our plant.
4. Reservoir is made
of
high density polyethylene. Keep
off
fire and refrain from using organic, benzene, or
xylene chemicals for cleaning.
Check periodically for correct working of the pump.
(Repeat oil feed and look at the oil through the
discharge pipe.)
7 -
From the library of: Superior Sewing Machine & Supply LLC
3.
Troubleshooting
Trouble
Cause
Remedy
Oil
not
fed.
Low
oil
level.
FiU
oil.
Full
stroke
movement
not
obtainable.
Dust
attached
on
the
interior
wall
of
the pumping chamber. Replace
lubricator.
Button
will
not
return.
Dust
accumulated,
or
break
of
spring. Replace lubricator.
Oilleak from (S) Wornout or displaced seal
of
0-Ring. Replace lubricator.
Oil
leak
from
(§) Wornout or displaced seal
of
packing. Replace lubricator.
Oil
leak
from
©Loose plug. Tighten plug or Replace
lubricator.
PUSH
BUTTON
LUBRICATOR
Model;
NP-7A
packing
reservo
r
PISTON
STROKE:
12
mm
RESERVOIR
CAPACITY:
45
cc
EFFECTIVE
OIL
VOLUME:
28
cc
DISCHARGE
RATE:
0.08
cc
per
push
air
vent
- 8 -
push
button
stroke
pump
body
spring
piston
pumping
chamber
check
valve
discharge
nozzle
From the library of: Superior Sewing Machine & Supply LLC
8.
ORDERING
PARTS
The parts list showing all the parts used in the machine is included in this book.
Check the list, and specify parts numbers and quantities required clearly.
Send your order to the nearest agent, distributor or one of
our
branch offices.
1. Description of each 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
of
part.
2. The parts which have no Ref. Number can not be delivered independently; always order it as an
assembly.
3. A
set
of
assembled
parts
is represented by
the
stamp
number
of
its
main
parts.
4.
The
last figure in
the
parts stamp number advances on each improvement
of
the parts.
5.
Part
No.
described
in [ ]
of
Remarks
means
old
part
No.
*
The
part
list is
subject
to
change
without
prior
notice.
CONTENTS
(1) THREAD
TENSION
AND COVER PARTS 10
(2)
BUSHINGS,
OILINGS
AND
HANDLE
PARTS 12
(3)
NEEDLE
BAR,
PRESSER
BAR
AND
DRIVING
PARTS
14
(4)
LOOPER
DRIVING
PARTS
16
(5) FEED
DRIVING
AND
THREAD
CUTTER
PARTS
18
(6)
MOTOR
PARTS
(ForTotally
Enclosed
Type
Motor)
20
(7)
SPECIAL
PARTS
FOR NP-7H TYPE 22
(8) CREPE
TAPE
BINDING
AND
CUTTER
PARTS
(Special OrderParts) 24
NUMERICAL
INDEX
OF
PARTS
26
- 9 -
From the library of: Superior Sewing Machine & Supply LLC
(1)
THREAD TENSION AND COVER PARTS
@
27
28
29
-10-
From the library of: Superior Sewing Machine & Supply LLC
(1)
THREAD
TENSION
AND
COVER
PARTS
Ref.No.
Part
No.
Description
Q'ty
Remarks
1
245042
Thread
Stand
1
215/64S28028
Screw,
for
245042
2
3
1N6
Nut
2
4
3W6
SpringWasher 1
5
2W6
Washer
1
6
KOlOOl
Thread
7
245052
Thread Cone Clamping Rod 1
8
245201
Thread Cone Clamping Nut 1
9
245013
Top Cover 1
10
9/64S40043 Screw, for
245013
11
245261
Thread Eyelet 1
12
11/64S40005 Screw, for 245261 1
13
245071
Thread Tension Eyelet 1
14
245081A
Thread
Tension
Assembly
1
(15-19)
15
245081
Tension
Post
1
16
065261
Tension
Disc
17
245101
Tension Spring 1
18
245091
Tension
Nut
19
9/64S40011 Screw, for
245081A
1
20
245033
Needle
Bar
Guard
1
21
11/64S40005 Screw,
for
245033
1
22
9/64S40065 Screw, for
245033
23
245222
Looper Cover 1
24
9/64S40065 Screw, for
245222
25
245022
Side
Plate
1
26
9/64S40005 Screw, for
245022
27
245481
Gasket
1
28
245302
Inside
Cover
1
29
9/64S40005 Screw, for
245302
4
30
245181
Thread
Cone
Cover
(1)
Special Order
-11-
From the library of: Superior Sewing Machine & Supply LLC
(2)BUSHINGS,01
LINGS
AND
HANDLE
PARTS
16 13
15
-12-
From the library of: Superior Sewing Machine & Supply LLC
(2)
BUSHINGS,
01
LINGS
AND
HANDLE
PARTS
Ref.No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
Part
No.
241024AS
241024A
241024
9/64S40011
245132
C02001
C02006
C05008
D03003
8FU2-6x90F
8FU2-6x60F
685x15
15/64828021
241122
9/64840502
065401
D07021
E03014
245471
1N4
245461
242212
9/64840502
242222
205131
241111
9/64840502
243021
245162
245271
241151
1/8840006
245171
EW-6.5
241024BS
241024B
Description
Handle Assembly
Handle Assembly
Handle
8crew,
for
241024A
Micro
8witch
Cover
Micro8witch (Z-15GK655-B)
Micro
8witch
(X-IOGD-B)
FlexibleTerminalBlock(ML-8K-1,4?)
Oiler
Oil Tube,
with
oil felt
Oil Tube, with oil felt
8crew, for D03003
8crew, for
241024A
Main8haft Bushing,rear
8crew,for241122
Rubber Bushing
Joint
(BN-5-6)
Washer
Joint
Nut
Oil Pipe
Bushing for PresserBar&NeedleBar,upper
8crew,
for
242212
Presser Bar Bushing, lower
Oil
Felt
Main8haft Bushing, rear
8crew, for 241 111
Looper Rocker 8haft Bushing
Oil
Felt
Hanger
Hook
8crew, for 241151
8houlder
Belt
^
8pring Balancer
Handle
Assembly
(Safety
type
with pulley
cover)
Handle
Assembly
(Safety
type
with pulley
cover)
-13-
Q'ty
)
(2)
Remarks
(2-11)
(3,4)
(4)
for
DC
motor
(9,10)
(17)
-8pecial
Order
(2-11)
(3,4)
From the library of: Superior Sewing Machine & Supply LLC
Ref.No.
m
Part
No.
241092
3/16S28001
241131
11/64S40502
241161
205131
241101
242011A
242011
3/16S28029
11/64S40001
1N8
Descnption
Synchro
Pulley
Screw, for
241092
Retaining
Collar
Screw,
for
241131
Spacer
Oil
Felt
Main
Shaft
Connecting Rod Assembly
Connecting Rod Sub-Assembly
Screw, for connecting rod cap
Screw, for eccentric
cam
Nut,
for
242011A
Q
ty
Remarks
(9-14)
(10,11)
From the library of: Superior Sewing Machine & Supply LLC
(3)
NEEDLE
BAR,
PRESSER
BAR AND
DRIVING
PARTS
Ref.No.
Part
No.
Description
Q'ty
Remarks
13
5W8
Washer,for 242011A (A-8-S) 1
14
6A04001
Rod End (POS-8) 1
15
11/64S40089 Screw, for 242031 1
16
11/64W15103 Washer,
for
242031
1
17
245211
Oil
Felt
1
18
242041
Spring 1
19
242031
Rod
End
Stud
1
20
245491
Cap 2
21
5/8N18101
Nut,
for 242081 2
22
242081
Adjusting
Stud
2
23
245231
GUFelt
2
24
242071
Needle
Bar
Lever
Stud
25
242051A
Needle
Bar
Lever
Assembly
1
(26)
26
11/64S40004 Screw,
for
242051A
27
245371
Oil
Felt
1
28
242101A
Needle
Bar
Connection
Assembly
1
(29,30)
29
205171
Oil
Felt
1
30
11/64S40003 Screw,
for
242101A
1
31
242121A
Needle
Bar
with
Nut
1
(32)
32
242131
Needle Clamp Nut 1
33
B01002
Needle (DNxl #25) 1
34
242171
Presser
Foot
Lifter
Base
35
11/64S40002 Screw, for 242171 1
36
11/64S40007 Screw, for 242171
37
242201
Presser
Bar
1
38
242181
Presser
Bar
Connection
1
(39)
39
11/64S40003 Screw,
for
242181
1
40
242191
Presser Spring 1
41
242231A
Presser
Foot
Assembly
1
(42-44)
42
9/64S40055
Screw
1
43
9/64N40101
Nut
1
44
11/64S40005 Screw, for 242231A,
242233A
1
45
242233A
Presser
Foot
Assembly (for
Net
Bag)
(1)
(42-44)
46
242161
Presser
Foot
Lifter
(1)
p
Special
Order
47
242271
Collar
(1)
•
For
Presser
48
31LP6
"0"
Ring
(1)
•
Bar
Lifter
49
11/64W15103
Washer
(1)
-
50
11/64S40009 Screw, for 242161
(1)
-
51
9/64S40001 Screw, for Lifter Stopper
(1)
52
241091
Synchro
Pulley
(1)
(2)
for
NP-7
Type
-15-
From the library of: Superior Sewing Machine & Supply LLC
(4)
LOOPER
DRIVING
PARTS
17
-16-
From the library of: Superior Sewing Machine & Supply LLC
(4)
LOOPER DRIVING PARTS
Ref.No,
4-1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Part
No.
243111
9/64S40035
9/64S40005
243121
243131
243071
11/64S40002
243041
243061
11/64N40201
243081
11/64S40009
243092
11/64S40089
243102
9/64S40001
243032
243012
15/64S28524
205131
Description
Spring
Supporter
Block
Screw, for 243111
Screw, for 243111
Spring
Supporter
Spring
Looper
Rocker
Shaft
Arm
(A)
Screw,
for
243071
Roller
Roller
Stud
Screw
Nut,
for 243061
Looper
Rocker
Shaft
Arm
(B)
Screw, for 243081
Looper
Rocker
Screw, for
243092
Looper
Screw, for
243102
Looper Rocker Shaft
Looper
Drive
Cam
Screw,
for
243012
Oil
Felt
-17-
Q'ty
Remarks
(2)
(7)
(12)
(14)
(19)
From the library of: Superior Sewing Machine & Supply LLC
(5)
FEED
DRIVING
AND
THREAD
CUTTER
PARTS
31 ^
30
-18-
From the library of: Superior Sewing Machine & Supply LLC
(5)
FEED
DRIVING
AND
THREAD
CUTTER
PARTS
Ref.No.
Part
No.
Description
Q'ty
Remarks
5-1
244011A
Feed
Dog
Carrier
Block
Assembly
1
(2,3)
2183/16-32x9 Feed Dog8upport 8crew (8M3/16x32x9) 4
3
245391
Oa
felt
1
4
244102
81ide
Block
Guide
8tud
1
59/64S40011 8crew, for
244102
2
6
246011
Knife
Bracket
Extension
1
73/16S32031 8crew, for 246011 2
8
244111
Feed Dog 1
93/16S32034 8crew, for 244111 1
10
244081
81ide
BlockAdjusting 1
11
3/16S32025 Lock Bolt, for 244091 2
12
11/64W15103 Washer, for 244091 2
13
244091
8tud
8Ude Block Adjusting 8upport 2
14
3/8N24201 . Lock
Nut,
for 244091 2
15
244122
Throat
Plate
1
16
9/64S40043 8crew, for
244122
3
17
246081
BaU
1
18
lB3xl2
Bolt, for 246081 (M3x0.5xl2 2) 1
19
1N3
Nut, for 246081 (M3x0.5) 1
20
1W3
Washer,for 246081 (M3) 1
21
11/64840049 8crew, for 246021 1
22
11/64W15103 Washer, for 246021 1
23
246021
Kiufe
Bracket
1
24
246032
Knife
Bracket
Pin
1
25
246042
Bushing,for 246032 1
26
246051
Knife Tension 8pring 1
27
9/64840502
8crew, for
246042
1
28
246061
Knife Moving 1
29
1/8840003 8crew, for 246061
30
246071
Knife 8tationary 1
31
1/8840003 8crev/, for 246071
32
3W3
8pring Lock
Washer
(M3) 1
-19-
From the library of: Superior Sewing Machine & Supply LLC
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1
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