Newlong DKN-3BP User manual

NEWLONG INDUSTRIAL CO., LTD.

For Operator Safety
Thank you for purc h a s ing t he N LI
Model DKN-3 Bag Sewing Machine Head.
• This manual contains the instructions and precautions for
using the Model DKN-3 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 order this
manual from the nearest NU office if it
is lost.
• The contents
of this manual are subject to change
without prior notice for improvement and safety
purpose,
& Cautions of Injuring the
• Be careful, when you insert a bag to be closed into
the sewing machine, or your fingers may
be caught in
the machine between the presserfoot and feed dog.
• NWarning"mark is attached
to the machine. When
sewing, be sure not to touch on the machine.
~1utions of Being Caught in the Machine---
• A Needle Bar and Needle Thread Take-Up are
moving at high speed. NWaming" mark is attached
to the machine. When the maclune is in operation,
keep fingers and yourself
away from the Needle Bar
and Needle Thread Take-Up.
~------
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From the Library of Superior Sewing Machine & Supply LLC

WARNING
P ERS ONAL I NJ URY 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 MACH I NE UNDER WET
CONDIT IONS.
3. DO NOT OPERATE MACH I NE BEFORE READ I NG
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 AIR 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 MACHINE IS IN
OPERATION.
9. BE SURE MACHINE IS PLACED ON A SMOOTH
(LEVEL) SURFACE WHEN PERFORMING
MA I NTENANCE, 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
II NLI,, 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
• Always turn power off before threading, oiling, and
adjusting the machine or replacing parts.
• Wear safety glasses.
• Make sure, before starting the machine,
that all covers
and shields are
in place and closed.
•
Do not touch on the machine when it is run.
• 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.
•
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 oilcloth.
• Check the machine for loose screws and tighten them,
if
any, once a month.
•
Good maintenance will prolong the machine life.
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From the Library of Superior Sewing Machine & Supply LLC

CONTENTS/ § i?(
1.Specifications/{±#k 2
2.The Points Before Operation/~~"i}u0)$$tt ----------- 2
3.Threading/*)ffiL- 2
4.Lubrication/~tltt 3
5.Aqjusting/a}Jl 4
5-1 Needle Setting/if-(1)5t~ ..................................................................................................................................................................... 4
5-2 Looper/ Jv- /-.::-(l)wffim ....................................................................................................................................................................... 5
5-2-a Timing of Looper and Needle/it~Jv-/-.::-(l)iR]wffl .................................................................................. 5
5-2-b Looper Stroke/ Jv-/-.::-(1):rft!Jii: ............................................................................................................................ 5
5-2-c Adjustment of Looper and Needle/it~Jv-/-.::-(l)ffililf .................................................................... 6
5-2-d Looper and Needle/it~1v-/-.::-(l)ri'li~ ............................................................................................................. 6
5-2-e Needle Height/it(l)rWJ~ ............................................................................................................................................................ 6
5-2-f Mounting of Loop Guide/Jv--;/'jf,1)-t ....................................................................................................................... 6
5-3 Feed Dog/~!)1i'z(l)wfflm ......................................................................................................................................................................... 7
5-3-a Vertical Adjustment/ J: r(l)wfflm ................................................................................................................................... 7
5-3-b Level Adjustment/7}(.ljl(l)wfflm .......................................................................................................................................... 7
5-3-c Adjustment in Longitudinal Direction/~fHi(l)wfflm ..................................................................................... 7
5-3-d Adjustment in Crosswise Direction/ir.;;f:;(l)wfflm .......................................................................................... 7
5-4 Change of Stitching Length/*i § rf}(l)~J! ..................................................................................................................... a
5-5 Needle Guard/itjf-j-t(l)wfflm ....................................................................................................................................................... a
5-6 Presser Foot/;J:1¥:::r:.~(l)wfflm ............................................................................................................................................................. a
5-6-a Presser Foot Height/ rWJ~wfflm .......................................................................................................................................... a
5-6-b Presser Foot Pressure/;J:1¥:::r:.fE(l)wfflm .................................................................................................................... 8
5-7 Thread Tension/*wfflr~1lf- ............................................................................................................................................................ 9
5- 7-a Thread Tension/* wfflr ............................................................................................................................................................ 9
5-7-b Needle Thread Tension and Guide/ J:*wfflt{i'j~J:*jf-1)-t ................................................................ g
6.Cautions when using the machine/1:slfJfL..l:::O)tl:l\lPi -------- 9
7.Troubleshooting/~'1/::..,0)}--7:f
;vO)))j{~~:M;r& 10~ 11
Parts List/$£:& 13-
NUMERICAL INDEX OF PARTS//~-o/~51 31 ~ 32
DIAGRAM OF SCREW, NUT & WASHER/;f"1/, To/r-, ?o/'1/~--~~ - 33~ 34
From the Library of Superior Sewing Machine & Supply LLC