HIGHLEAD HLK-3020 Instruction Manual

HLK-3020 （TH）
ELECTRONIC PATTERN SEWING MACHINE
Instruction Manual
Parts Catalog
S
HANGHAI BIAOZHUN HAILING SEWING MACHINERY CO., LTD
.

CONTENTS
FOR YOUR SAFETY………………………………………………………………1
USE OF THE ENVIRONMENT……………………………………………………2
1. STRUCTURE OF HLK-3020(TH) SEWING MACHINE……………………3
2. SPECIFICATION………………………………………………………………3
3. INSTALLATION…………………………………………………………………4
3-1.Installation of the control box…………………………………………………4
3-2.Installation of the power switch………………………………………………4
3-3.Connection of the foot switch…………………………………………………5
3-4.Installation of the sewing machine head………………………………………5
3-5.Connection of electric cables…………………………………………………6
3-6.Installation of spool stand………………………………………………………7
4. OILING…………………………………………………………………………8
5. PROPER OPERATION…………………………………………………………8
5-1.Installation of the needle………………………………………………………8
5-2.Threading the upper thread……………………………………………………8
5-3.Winding the bobbin thread……………………………………………………9
6. PROPER SEWING……………………………………………………………10
6-1.Operation of the emergency switch…………………………………………10
6-2.The sewing operation…………………………………………………………10
6-3.Adjustment of the thread tension……………………………………………11
6-4.Removing and inserting the bobbin…………………………………………11
7. ADJUSTMENT OF SEWING MACHINE……………………………………11
7-1.Adjusting of needle bar height………………………………………………12
7-2.Adjusting of distance between needle and shuttle hook point……………12
7-3.Adjustment of the clearance between the hook driver and the needle……12
7-4.Adjustment of the presser foot………………………………………………13
7-5.Adjustment of the mechanical home position………………………………14
7-6.Adjustment of x and y timing belt tension…………………………………15
8. MAINTENANCE………………………………………………………………15
8-1.Daily maintenance……………………………………………………………15
8-2.Drain of waste oil………………………………………………………………15
PARTS CATALOG………………………………………………………………16

— 1 —
This technical manual explains the instructions how to operate and maintain the sewing
machine．All information in this technical Manual are subject to change without notice．
Shanghai Biaozhun Hailing Sewing Machinery Corp. has all the copyrights on this
technical manual．
Reprinting the parts or all of this technical manual is not allowed without permission．
FOR YOUR SAFETY!
If you operate the sewing machine first time，please make sure to read the following
instructions for your safety and proper operation．
In this technical manual。the notice CAUTION is mentioned at some paragraph to attract your attention
for the safety．Please keep it in mind whenever you work with the sewing machine．
CAUTION is used as the notice to warn a possible danger to cause a wound
Explanations for the warning signs
NO Warning sign Meanings of warning sign
1
2
3
Caution for sewing machine operation：
Warning to operate the sewing machine
without safety guards and to prohibit doing
any operation except sewing while the
power is turned on．
<Interpretation of sign>
·Do not operate without finger guard，eye
guard，belt cover and other safety devices．
·Before threading，changing needle and
bobbin clearing，oiling etc．switch off main
p
ower switch．
Caution for a wound on the fingers：
Warning to a possible danger to cause a
wound on the fingers under the specified
operation．
Caution for the fingers：
Warning to a possible danger to be caught
the fingers in the machine under the
specified operation．

— 2 —
USE OFTHE ENVIRONMENT
1. Temperature and humidity
During operating：
The atmosphere temperature should not exceeded more 350℃(95°F) or less 5°C(41°F)．
During transportation：
The atmosphere temperature should not exceeded more 55°C(131°F) or less -10°C(18°F).
The relative humidity in the atmosphere should not exceeded more 85％or less 45％．
2. Atmosphere for the machine operation
In the atmosphere filled with dust or corrosive gas．
In the atmosphere filled with flammable or explosive gas．
3. Power source voltage
In the place where the power fluctuation exceeds more or less 10％of the fixed power voltage．
In the place where the power source cannot supply enough voltage to keep the motor running．
4. Power source voltage
In the place where the power fluctuation exceeds more or less 10％of the fixed power voltage．
In the place where the power source cannot supply enough voltage to keep the motor running．
5. Noise
In the place near a high frequency transmitter or a high frequency welder．
In the place filled with strong electromagnetic radiation or magnetic field．
Caution
★ For avoiding the sewing machine from the troubles，please do not operate the sewing
machine under the following conditions．

— 3 —
1. STRUCTURE OF HLK-3020(TH) SEWING MACHINE
2. SPECIFICATION
Sewing area：X-Direction(left／right) 300mm
Y-Direction(forward／backward) 200mm
Maximum sewing speed：800 rpm
Sewing speed：variable from 100 to 800 rpm
Stitch length：0.1 to 12.7mm
Stitch type：Single needle lock stitch

— 4 —
Needle bar stroke ：56mm
Thread take up lever stroke：96mm
Class of needle：DY×3 26# (the standard specification)
Presser foot lift：20 mm
Presser foot alternation：Variable from 4mm to 10mm
Work holder lift：30mm
Hook：Large size shuttle hook
Lubrication system: Manual oiling and replenishment with the oil wicks from the oil tanks
Lubrication oil：SF sewing machine oil
X—Y drive system：Stepping motor, timing belt and linear guide rail drive
Intermittent or continuous feeding
Machine dimension：1,200mm (W) × 1,100mm (L) × 1,300mm (H)
NetWeight: 130kgs
Main motor: 750W
3. INSTALLATION
Caution
★ The machine should be installed by the specialists who have enough experience for the sewing
machine installations．
★ All the necessary electric wiring should be done by electric engineers who are qualified for electric
wiring．
★ If any damage or fault is found on the machine at the installation，please do not operate until it be
repaired．
★ Please do not operate the sewing machine with excessive modifications from the standard
specification.
3-1.Installation of the control box
If the control box is purchased without
assembling to the table, the control box
has to be installed underneath the table.
Please install the control box with the
instruction in the paragraph.
3-2.Installation of the power switch
If the power switch is purchased
without assembling to the table，the
power switch has to be attached with
the following procedure．

— 5 —
(1) Mount the power switch①with the wood
screw②underneath the table as shown on
the figure．
(2) Fix the electric cords with the staples③
underneath the table．
(3) Connect the plug⑧of the power switch①
to the control box⑦．
(4) Attach the power plug⑤to another end of
the power switch cord④．
3-3.Connection of the foot switch
Connect the foot switch⑥to the relevant socket (the middle socket) on control box⑦.The foot switch is
enclosed in the accessory box.
3-4.Installation of the sewing machine head
Caution
★ For the safety，lift and move the sewing machine heads with powerful lifting equipment under monitor of
more than two people.
(1) Install the stand and put tabletop①on it.
(2) Take out the support blocks③from accessory box and place them on the transoms of stand.
(3) Put the sewing machine head⑧
into the cut-out of machine head
and make sure the four feet of
machine heads are seating on
the support blocks.
(4) Set machine head onto stand
with Allen screws⑤, and
washers from accessory box as
following figure shows.
(5) Adjust the Allen screws②to
raise the table top up onto the
bottom of big slide plate⑨of
machine head. Connect the
tabletop and stand with bolts⑦.
(6) Install oil pan ③on the
transoms of stand with screws
④.

— 6 —
3-5.Connection of electric cables
（1）Connection diagram
（2）Back of control box and sockets diagram.
SOCKET NAME FOR CONNECTING TO
X4 Spindle motor power
X5 Spindle motor signal
X6 RS-232C(Optional)
X7 Operation panel
X8 Foot switch pedal
X9 Solenoid output
X10 RS-232C(Optional)
X11 Control signal 1
X12 Extension I/0
X13 Control signal 2
X14 Y stepping motor
X15 X Stepping motor
G Ground wire

— 7 —
（3）Circuit board diagram.
3-6.Installation of spool stand
（1）Assemble the stand parts (packed in accessory box) as following figure shows.
（2）Fit spool stand ①into the hole on the upper right corner of table top.
（3）Fix the thread stand①firmly from the rear side of the table by tightening the nut○4 and the washers②, ③．
Control signal
1 ，X11
Control signal
2 ，X9
Thread wiper
solenoid
Inner foot
solenoid
Thread release
solenoid
X shaft
detecto
r
Y Shaft
detecto
r
Emergency
switch
Pneumatic
inner foot Pneumatic
presser frame Trimmer
solenoid
Presser frame
solenoid

— 8 —
★ Turn of power witch before oiling。
★ Oil the machine sufficiently before first operation of a brand new machine or after long time stop.
★Please
b
e sure to turn the
p
ower switch OFF before threadin
g
the u
pp
er thread．
4．OILING
NOTE : Please use high quality white
SF machining oil:
Pour some oil into red marked
oil holes as the figure on the right
shows．
5 . PROPER OPERATION
5-1.Installation of the needle
Caution
★Please be sure to turn the power switch OFF before installing or replacing the needle．
★Please pay attention for the fingers not to be wounded by the needlepoint．
(1) Loosen the needle set screw①and then
insert a new needle②till the needle
head reach the end of the hole of the
needle bar③．
(2) Make the needle groove④face to the
front and fasten the setting screw①then.
5-2.Threading the upper thread
CAUTION