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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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.
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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