Newlong NP-7A User manual

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ACHTUNG
VERTETZUNGSGEFAHR
BEINICHT
BEACHTEN DER FOLGENDEN
VORSICHTSMASSNAHMEN!
1. DIE
UMGEBUNGDERMASCHINE
MUSSFREI
SEINVONGEFAHREN QUELLEN
WIE
FEUER,
WASSER,OI, ASTITTUND
ALLEN
ANDERENDINGEN,
DIEVERLETZUNGEN
vERURSACneTXOrururru.
e.geNUrzEN
srE
DrEMAScHINENtcHTtN
DERUMGEBUNG
VONEXPLOSIVEN
ODER
WASSER.DIEMASCHINE
ISTNICHTGEGEN
ExPLoSIoNENoDER
wASSER
cescxUrzr.
3. voR oeM eeoIENENDERMASCHINEESRT
BEDIENUNGSANLEITUNG
LESEN.
4. DIEMASCHINE NURAN ZUGELASSENE
NETZSPANNUNGANSCHLIESSEN.
5. DIEMASCHINE
MUSS
GEERDETSEIN.
6. DIEMASCHINEMUSSVONNETZSPANNUNG
(UND LUFTVERSORGUNG)
GETRENNT
WERDEN,BEVORWARTUNGSARBEITEN,
JUSTAGENUNDREINIGUNGDURcHceTUnnT
WERDENTOruruEru.
7. DIE MASCHINE
DARF NICHTOHNE
SCHUTZHAUBENUNDABDECKUNGEN
BETRIEBENWERDEN.
8. MESSER,NADEL,RIEMENSCHEIBE.
RIEMEMUNDALLEBEWEGLICHEN
TEILE
NrcHTeeRUHReNwENNDrE
MAScHINE
uUrr.
9. DIE MAScHINESoLLTE AUcH TUn
WARTUNG,JUSTAGE,REINIGUNGODER
LAGERUNG
AUF
SAUBEREMUNDEBENEM
UNTERGRUNDSTEHEN.
10.
DASZUVERWENDENDE
MATERIAL
MUSS
DEN
MASCHTNENANGABEN
ENTSPRECHEN.
11.
NUR
ORIGINAL"NEWLONG"
ERSATZTEILE
VERWENDEN.
AVERTlSSEMENT
AfiENTIOru
A CEQU'EN
CASDE
NE
PAS
OBSERVER
LES
ARTICLES
DE
SECURITE
CI,DESSOUS,
CA
PEUTPROVOAUER
UNACCIDENT.
t. vEnlrtezs'tL
N'yApAS, AUToUR
DELA
MACHINE,DE TELLE
CHOSE
QUI PEUT
PROVOQUER
UNACCIDENT
COMMELEFEU,DE
L'EAU,DEL'HUILE
ou DEla ulttEne
COMBUSTIBLE.
2. cETTEMAcHINEN'ESTNlrNEl<pLosrBtusEerur
hrpeRuElglusEE,
oottc
NEL'[musEz
pas
A
UNEPLACE
OUICOMPORTEUNRISOUE
D'ExplostoN
oueurA
UNE
possnllnE
oe
se
MOUILLER.
3. NEMANOUEZPAS
DELIRELE MANUEL
D'INSTRUCTION
AVANTDEMETTRELA
MACHINE
ENMARCHE.
4. NEMETTEZ
PASLAMACHINEENMARCHE
AVECUN AUTREVOLTAGE
QUE CELU]
O'lt'tOnUE.
s.vEnrnez sr LAPRrsEDE
TERREEST
coRREcTEMem
coruruecrEe.
6. NE
MANQUEZPASDE
COUPERLECOURANT
(FrLE
GAzcopRtMEynvaui L'ENTRETIEN,
LE
CHANGEMENTDEPIECE.
I.AMISE
AUPOINTOU
LENETTOYAGE
DEI.AMACHINE.
7. NEMETTEZPASLAMACHINE
ENMARCHE
AVECLE
COUVERCLEOULACOUVERTURE
eruuvEg.
8. NETOUCHEZPAS
TELLES
PARTIES
QUI
BOUGENTCOMME
LECOUPOIR,
TAIGUILLE,
LA
POUUE.
tA COURROEETC.PENDANT
I.AMISE
EN
MARCHE
DELAMACHINE
9. LORSDEL'ENTRETION.
LECHANGEMENT
DE
prEce,
LA
MtsEAU
porNTou
LEMATNTENANcE
DELA
MACHINE,
METTEZ-LA
AUNEPLACE
PI.ATE.
to.vEnrrrez
srvorRE
uanEnrA
couone
s'ADAPTEA r-l spEctFtcATroN
DELA
MACHINE
11,N'EMpLoyu
pAS
D'AUTRE
pEceoueCELLE
DECONVENABLE
DE
.'NEVYLONG'"

CONTENS
1.
SPECIF|CATIONS ----...'
I
2.
THE
POINTSBEFORE
OPERATION ...... ..'
-
3.
PREPARATIONFOR
START"
" "'.':' " " "1v
1. Oiling ...........3
2. Needle
Setting .i..............3
3. Threading..... ........3
4.
START -.....4
5.
ADJUSTMENTS .........5
1.ThreadTension :
"...' ........5
2. Position
of
Needle
andLooper ......5
3. PositionofFeedDog..
4. Pressure
of
Presser
Foot
. ...........5
5. PresserFootLifter ....'.......5
6. HowtouseHook' '.'.".'..'.'......5
6.
REPLACINGPARTS .
....6
7.
LUBRTCATOR -----7
1. Operation
..'.. '
........7
2. Maintenance.. --....--.7
3. Troubleshooting .......7
8. MAINTENANCE .'.J.....8
9. ORDERINGPARTS .... ..O v
NUMERICALINDEX
OF
PARTS ....26.27
DIAGRAMOFSCREW.NUT&
WASHER ....28
-t

3. PREPARATION
FOR
START
l.Oiling
(Fig.1)
Oiling is imperative
to keepthemachinein good
operating
condition.
Pouroil in thereservoir
(capacity
45 cc).To begin
theflow of oil to the
machine,
pushthebuffonof thelubricator
tentimes
continuously
before
starting
themachine.This
shoulddispense
enoughoil for an averagerunning
of four hoursunder
normaloperating
conditions.Do
notrunthemachine
withoutoil asit couldcausesa
machinefailureorbreak
down.
2.Needle
Setting(Fig.2,
3,4)
Tum thepulley until Needle
Bar reaches
its highest
position.
LoosenNeedieBarClamping
Nut,andset
Needlein theBarasdeepas
it will go.
Besure to set aNeedlewith itsconcave
part
facing
correctly
towardtheLooper.Fix Clamping
Nut
tightly, otherwise
Needlemay comelooseduring
operation
andbreak.
3.Threading(Fig.5)
The machine
is deliveredbeingthreaded
to show
youproper
threadingof themachine,which
isshown
in Fig.5, for identification.Follow theguide
numbersI to7ofFis.s.
Fig. 1
7"1
//' //l
A(((
Fig.2
Fig.3
O,@Thread
Eyelet
,A-
[3'
Ienston Ljlsc
@Thread
Eyelet
-3-

5. ADJUSTMENTS
lmportant! .
When
adjusting
the
machineor
replacing
parts,
always
disconnect
theElectricCord
from
the
power
source.
Thisisimportantinview ofsafetytotheoperatorand
adjuster.
1.
ThreadTension
(Fig.10)
Thethreadtensionspringispreset
atthefactoryto
sewPPwovenclothbags.
If someadjustmentis
needed,first loosenscrew@ (ql64S+0005) and
adjustthe thread tensionnut @ (245092) asper
Fig.l0. Whentheadjustment
is finished,retighten
screwtolockthethreadtensionnut.
If this is not done.the stitchwill not remain
uniform.
2.Positionof Needleand Looper(Fig.11)
Loopermustpass theconcave
partof Needlewith
clearance
of 0.1 mm as shown in Fig.11.
Adjustmentof the clearancecanbe doneafter
loosening
the
screwofLooperRocker.
3.Position of Feed Dog (Fig.12)
When installinga new feeddog ensurethat it is
positionedcorrectly onto the feed dog carrier
block andlightly tightenthefixing screw.Check
thatthefeeddogteethare2.8mmabovethethroat
platewhenthefeeddogis in thehighest position
beforefinaltighteningofthefixing screw.
4.Pressure
ofPresser Foot
Whento adjustthepressure of PresserFoot,take
outNeedleBarGuardandloosenScrewof Presser
Bar Connection.Move up Presser Barto increase
the pressureand down to decrease. After the
adjustment,tightentheScrew
firmly.
5.PressureFootLifter
The PresserFootLifter is usedto lift thePresser
Foot andpull out a bag from underthePresser
Foot in case of a problemsuchasbagor thread
jamming.
6.Howtouse
Hook
(Part
No.241151)
TheHook on thePulleyCoveris usedto installa
ShoulderBeltoraHanger.
Fig. 10
2.8
mm
Feed
Dog
(244111)
Throat
Plate
(244122)
Feed
Dog
StopperScrew
(3/1
6S32034) Fig.12
-5-

7
. LUBRICATOR
l.Operation
The
lubricator
comprises
apump
andareservoir.
The reservoir
holds max45 cc of oil. @ffectiveoil
volume
is28cc.)
Usemineralotl22- 32 cSt
at4O"C
@g.
Tellusorl#32).
To operate
thelubricator:
1.Firstunscrew
thereservoir
cap
byhalfa
tum.x
2.Push
thebuttonto its lowestposition (stroke:
12mm).
3.
When
released,
thebuttonwill automatically
retum
to itsoriginalposition.
4.Lastly,
tighten
thecapto prevent
oil leak
during
operation.
x Repeated
working
onthebutton
withoutfirstloosening
thecapmay
produce
negative
pressure
inthe
reservoir,
and
thedustin
the
atmospheremay
be
easily
introduced
init
when
thecap
is
loosened.
3.Troubleshooting
Trouble
2.Maintenance
1.
Keep
offdustorforeign
marterwhen
tofill oil
(They may cause
jamming of the pistonandthe
check
valve).
2.Rate
of discharge
is fixed andnot adjustable
(0.08cc
per
push).
3.{ hightemperatures,grease
mayrunalongpoints
(9. This is normal,grease
beingused
whenthe
lubricator
was
assembled
in ourplant.
4.Reservoiris made
of high densitypolyethyiene.
Keepoff fire andrefrainfrom usingorganic,
benzene,
orxylene
chemicals
forcleaning.
Check
periodically
for correctworking of the
pump.
(Repeat
oil feed
andlook attheoil rhrough
the
discharge
pipe.)
Remedy
Replace
lubricator.
Replacelubricator.
Replace
lubricator.
Replacelubricator.
Tiehten plus or
luDncator. Replace
Oil notfed.
Full strokemovement
not
obtainable.
Buttonwill notretrun.
Oil leakfrom@
Oil leakfrom@
Oil leakfrom@
[.owoillevel.
Dustattached
on theinterior
wallof the pumping
chamber.
Dustaccumulated,
or break
of
spnng.
Womoutor displaced
sealof
O-Rins.
Wo*Jut or displaced
sealof
packing.
Loose
plug.
PUSH-BUTTONLUBRICATORModel:NP-7A
push
button
stroke
O-ring
pump
body
reservo spnng
piston
PISTON
STROKE:12mm
RESERVOIB
CAPACITY:45
cc
EFFECTIVE
OIL
VOLUME:28
cc
DISCHARGE
RATE:
0.08cc
perpush
pumping
chamber
check
valve
spring
plug
discharge
nozzle
-7 -

8. MAINTENANCE
Cleanthemachineattheendof theday's
work, and lmportant !
oil thebushings, shaft,
etc.thatarenotlubricated
by The motor body should not be ope.ned
for the
a lubricator.
Wipe dustandotherforeignmatter
off maintenance.
the FeedDog teethLooper andThroatPlateeyelet
wheretheyareeasily
gathered. When adjustingthe machineor replacing parts,
Careshouldbetakento keepthemachinl f^reefrom alwaysdisconnect
theElectric Cord from thepower
dust,
especially
whento leaveit unused
for some source.
time' This is importantin view of safetyto the operator
and
adiuster.
[ruores
oN
cARRYTNcAND
sroRAGE]
1.Carrythemachinein astoragebox.
2. Afterthe useof the maching,remove
theplug,
cleanthe dirt, takethe threadfrom the machine
andthen
putit intoastoragebox.
We suggest
you to usea soft brushto cleanthe
rear
of themachine.
3.Never storethemachineunderthe sunlieht
dried
orwetcondition.
lcAUrroNl
When
operate
themachine,
donot
putit
onthetable.
Themachine
is notatable
toptype.
-8-

6. REPLACING
PARTS
For replacement
or adjustment
of Ball Rod, refer to
Fig.l3.
Takeout Screw
C anddisconnect
RodEnd@ fro*
Needle
Bar Lever @. aft"t loosening
theNut @,
acljust
theclearance
between
Connecting
Rod@ and
RodEnd@, ,o thatNeedle
Barmoves
in the
center
of
theclearance
between
theupperandlowerPresser
Bar
Bushings.(Needle
Barstrokeis37mm).
To fix EccenfficCam C on Main Shaft@, tighten
theScrews
@ and
@on Main Shaft
@ (gccentric
Cu- C should
contactSpacer
@ Sigttrty.;.
Thepositionof Needle
is adjusted
sothatthedistance
between
the point of Needle(at irs highestposition)
andThroatPlateis 13mm, afterloosening
screwon
NeedleBarCornection
Assembly
@ in Fig.13.
O Screw11/64540084
@
noo
End64o4oo1
@ NeedleBar
Lever242051A
@ttut
true
@Connecting
RodAssembly
242011A
@ NeedleBar
ConnectionAssembly
242101A
@ Eccentric
Cam
(parl
of
ConnectingRod
Assembly)
242011
@lrlainshaft 241102
@ dscre* 11/64540001
@Spacer241161
Adjust LooperDrive Cam@ When necessary
as
follows:(Refer
toFig.14.1. J
a)ApplytheScrews
(?) and (? onthetaper
of Main
Shaft
O.
b)AdjustAnn
(B)@,sothatLooper
Drive
Cu- @
andArm (A) I move
smoottrly.Afteradjusting,
fix the
Screw
(Q)
tightly.
c)The
clearance
berweenLooper
DriveCam
(f and
4t* @ iseffected
by Spring
@. Loor"nScrew
@ and
turnSpring
Supporter
@ to adjusr
the
pressure
of Spring
@. erct adjusting
tighten
the
_ Screw
(N tofasten
Spring
Supporter(Q.
Otvtain
shaft241102
@d Screw151u528524
@LooperDrive
Carn243012
@
Looper
RockerShaftArm
(B)
243081
@LooperRocker
ShaftArm
(A)
243071
@
ScrewlorLooper
Rocker
ShaftArm
(B)
11/64540009
O Spring243131
@
SpringSupporter
243121
@
Screwfor
SpringSupporter
Block
11/64540003
9,4mm
Fig.13
Fig.14
-6-

1
. SPECIFICATIONS
o This
BagClosingMachineisdesigned foruse inthe lightindustries.
TECHNICAL DETAILS
Speed(sec/bug)' "'5-6
Seam ' 'Single ThreadChainStitch
StitchRange(mm
) "' ' .'8.5 (fixed)
Revolution(rpm.) " '1,600t
125
Needle "';' 'DNxl-#25
Thread(vinylon,synthetic
orcotton) '' '2016
Bag
MaterialToBeClosed '' '' 'Kraft Paper,PP/PEWoven Cloth,Cotton,
Hessian,
Jute
DriveMotor '220Y(65W),230V
-240V(70W)
Power
Supply 220V.,A.C.
(Output
65W)
I |
230V
-240Y.,
A.C.
(Output
70W)
pcs.
roll
pce.
pce.
can
pce.
pce.
2. THE
POINTS
BEFORE
OPERATION
o Oil thearea
throughwhichthreadpasses,
the
tensiondisc,the
thread
guide,
looper,
etc.
(Note:An anticorrosive
agentisappliedto themachines
atthefactory,
in orderto prevent
rusting.It
isnecessary
to useoil toremove
thisagent.orit mayprevent
thethread
frompassing
somoothelli)
o confirm that
the
machine
has
beenthreaded
as
perFig,5in themanual.
o confirm that
the
machine
has
been
lubricated
as
per
Fig.1in the
manual.
50
- 60Hz,Single
Phase
NetWeight(kg)
' ' ' '6 kgsIncludingThreadCone.
MachineDimension(mm.) 361(L)x246(W)x321(H)
PackingDimension(cft.)' "" "2.5
I STANDARDACCESSORIES
1. NeedlesDNxl-#25 """"5
2. ThreadVinylon 2016
3. ScrewDriver'
4. NeedleBarSpanner
' ' '
5. Oil ..
6. Hexason
Socket
Screw
I. )Crew Dflver
-2-

WARNING
PERSONAL INJURY MAY
RESULT IF THE FOLLOWING
SAFETY PRECAUTIONS
ARE
NOT OBSERVED.
1.BESURE
THEAREASURROUNDING
MACHINE
IS FREE OF ALL
HAZARDS
SUCH
ASFIRE,
WATER, OIL, RUBBISHOR ANYTHING
THAT
CANCAUSE INJURY.
2.DO NOT OPERATE MACHINE IN AN
EXPLOSIVE AREA OR UNDER WET
CONDITIONS.
THE MACHINE
IS NOTAN
EXPLOS]ON
- PROOF TYPE NORWATER-
PROOF.
3.DO NOT OPERATE MACHINE BEFORE
READINGINSTRUCTIONMANUAL.
4.DONOT OPERATEMACHINEON VOLTAGES
OTHERTHAN
SPECIFIEDFORTHEMACHINE.
5.BE SURE MACHINEIS CONNECTEDTO
BUILDINGELECTRICAL
SAFFTY
GROUND
(EARTH).
6.BE SURE POWER
(AND
ArR SUPPLY)tS
OFF BEFORE PERFORMING MACHINE
MAINTENANCE,
PARTS REPLACEMENT,
ADJUSTMENTS
OR CLEANING.
7.DO NOT OPERATEMACHINEWITH
GUARDS
AND COVERSREMOVED.
8.DO NOT TOUCH KNIFE,NEEDLE,PULLEY,
BELTANDMOVINGPARTSWHENMACHINE
IS INOPERATION.
g.BE
SUREMACHINEIS PLACEDON ASMOOTH
(LEVEL)
SURFACEWHEN PERFORMTNG
MAINTENANCE,PARTS REPLACEMENT,
ADJUSTMENTS,
CLEANINGOR STORAGE.
1O.BE
SURE THE MATERIALTO BE SEWN
OR CLOSEDCOMPLIESWITHTHEMACHINE
SPECIFICATIONS.
11.DONOT USE SPAREPARTSOTHERTHAN
"NEWLONG"
GENUINEPARTS.
PFIEtrAUGION
NOSEGUIRLASINSTRUCCIONES
OUE SE DETALLANPUEDE
RESULTARPERJUDICIALPARA
SUSALUD.
1.ASEGURARASEOUE ALREDEDOR
DE LA
MAQUINA.NOHAYANINGUNELEMENTOCOMO
FUEGO,AGUA,ACEITEUOTROS
QUE
PUEDAN
OCASIONAR
ALGUNACCIDENTE.
2.NO
USAR
LAMAQUINAENNINGUNAREA
QUE
TENGA RIESGO DE EXPLOSIONOBAJO
CONDICIONESDEHUMEDAD.
LAMAQUINANO
ES
SOLO
EL TIPOA PRUEBADEEXPLOSION,
SINOELTIPOA PRUEBADEAGUA.
3.USARLAMAQUINA,DESPUESDEHABER
LEIDO
CON DETENIMIENTO EL MANUAL DE
INSTRUCCIONES.
4.NOUSAR LA MAQUINARIACON VOLTAJES
DIFERENTESALOSESPECIFICADOSPARALA
MISMA.
5.ASEGURARSEDE QUE LA MAQUINAESTA
CONECTADA A UNA ZONA ELECTRICADE
SEGURIDADCON TOMADE TIERRA.
6.ASEGURARSEDEDESCONECTARLAMAQUINA
ANTESDEPROCEDER
ASUMANTENIMIENTO,
SUSTITUCIONDEPIEZAS.AJUSTEY LIMPIEZA
DELAMAQUINA.
7.NO USAR LA MAOUINACON OBJETOS
EXTRANOS,NICUANDOTENGAUNATAPADERA
ABIERTA.
8.NOTOCARLASCUCHILLAS,AGUJAS,POLEAS,
CORREAS
Y PARTESMOVILESCUANDOLA
MAQUINAESTA
EN FUNCIONAMIENTO.
9.ASEGURARSEDE QUE LAMAQUINAESTAEN
UN LUGAR
APROPIADOPARAPROCEDERAL
MANTENIMIENTO,RECAMBIO
DE PIEZAS,
AJUSTES,LIMPIEZAOALMACENAJE.
10.
ASEGURARSE
DE
QUE
ELMATERIALACOSER
ENTRADENTRODE LASESPECIFICACIONES
DE LAMAQUINA.
11.NOUSARNINGUNAPIEZADERECAMBIOQUE
NOSEANEWLONG.

o The
part
list
issubiect
tochange
without
prior
notice'
i
I
,]
I
iF
l
I
SEW EUROPE
88 RICE LANE
LIVERPOOL L9 1DD UK
Tel: [phone]
e-mail: [email protected]
Newlong NP-7A Machines, Thread, Service & Replacement Parts