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. CAUTION In this technical manual。the notice 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 This technical manual explains the instructions how to operate and maintain the sewing...
Page 3
Caution ★ For avoiding the sewing machine from the troubles,please do not operate the sewing machine under the following conditions. 1. Temperature and humidity During operating: ℃ . The atmosphere temperature should not exceeded more 350 (95°F) or less 5°C(41°F) During transportation:...
------- CONTENTS ----- STRUCTURE OF THE SEWING MACHINE ······························································································· 1 SPECI FICATION··········································································································································· 2 INSTALLATION ············································································································································ 2 3-1. Installation of the control box ····················································································································· 2 3-2. Installation of the power switch ·················································································································· 3 3-3. Installation of the oil pan ···························································································································· 3 3-4.
Page 5
7-7-4 Adjustment of the presser foot standard height ····················································································· 19 7-8. Adjustment of the bobbin winder ·············································································································· 20 7-9. Adjustment of the work holder ·················································································································· 20 7-10. Adjustment of the trimmer cam follower ·································································································· 21 7-11. Adjustment of the position for the movable knife point ············································································· 21 7-12.
1、STRUCTURE OF THE SEWING MACHINE HLK-3020 electronic pattern sewing machine is constructed with the following main parts ①Sewing machine head ② ③ ④Power supply changer Thread stand Operation Panel ⑤Control Unit ⑥Work holder foot switch ⑦Electromagnetic valve ⑧Wooden Table ⑨Halt switch —...
2 SPECI FICATION Sewing area: X-Direction(left/right) 150mm Y-Direction(forward/backward) 100mm Maximum sewing speed: 2700 rpm Sewing speed: 10 steps variable from 200 to 2700 rpm Stitch length: 0.1 to 12.7mm Stitch type: Single needle lock stitch Needle bar stroke : 41.2 mm Thread take up lever stroke:...
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....
3-3 Installation of the oil pan ○ Fix the oil pan 1 at its four corners on the table top with four. 3-4 Installation of the sewing machine head ★ For safety, please use a crane or a crane to install the sewing machine. At the same time to pay attention to table can not move, arm and bed have a stable support.
3-5 Installation of the spindle motor If the spindle motor has been removed from the machine for the adjustment or the like, fix the spindle motor as the procedure described right. (1) Spindle motor according to right: put the signal cord upward. (2) Adjust the plane of the motor shaft alignment of the left on the motor mounting holes, 45 °...
3-6 Connection of the operation panel Please connect the operation panel with the instructions of operation panel manual enclosed in the packing. 3-7 Connection of the electric cables Please make sure to ground the place where there is a mark. Failure to do so may cause electric shock and/or malfunction.
3-8 Installation of the thread stand (1) Assemble the thread stand with the instructions enclosed in the packing. ○ (2) Fit the thread stand 1 in the thread stand holeg on the tabletop. ○ ○ (3) Fix the thread stand 1 firmly from the rear side of the table with tightening the nut 4 and the ○...
5 PROPER OPERATION 5-1 Installation of the needle Caution ★Please make 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 screw 1 then,...
5-3 Winding the bobbin thread ★Please make sure to pull the upper thread out of the needle before winding the bobbin thread (1) Turn the power switch ON. (2) Pass through the thread from the thread stand①as shown on the right figure . then,wind the thread to the empty bobbin②in the arrow mark “a”...
5-5 Setting the bobbin case (1) Set the needle bar to its highest position then,open the cylinder cover①. (2) Open the bobbin case latch lever②fully then, fit it securely in the inner hook③. [NOTE]Please pull the bobbin thread about 2.5mm out of the thread hole(NO.4)of the bobbin case....
★ Please make sure to always operate the sewing machine with the safety guards. ★ Please do not put unnecessary articles except for the sewing operation on the tabletop. ★ Please keep the hands and the face away from the needle. (1) Turn the power switch①ON.
(2) Upper thread tension Adjust the upper thread tension based on the bobbin thread tension.For this adjustment,turn the thread tension adjusting nut③④.The upper tread tension becomes tight if turn the thread tension adjusting nut③ ④to the clockwise,and the upper thread tension becomes loose if turns it to the counter clock wise. 7 STANDARD ADJUSTMENT Caution ★...
7-2 Adjustment of the position between the needle and the shuttle hook (1) Turn the power switch OFF. (2) Turn the sewing machine pulley by hand then,move up the needle bar① from the lowest position and stop it at the position②where the needle bar timing mark C is matched to the needle bar bushing bottom line....
7-4 Adjustment of the clearance between the driver and the needle (1) Please take same procedures above paragraph 7-2.from(1)to(5). (2) Please make sure clearance between the shuttle hook point and the needle has been adjusted 0.05~0.1 mm above procedure Adjustment of the clearance between the shuttle hook and the needle....
7-6 Adjustment of the wiper (1) Loosen the wiper setscrew③and adjust the wiper①to be positioned where the wiper①passes under the needle point②with about 2 mm clearances right after the sewing machine is stopped running at the needle upper position (the thread take up lever's highest position). [NOTE] When the presser foot position or the presser foot lift is changed, the wiper①may collide with the presser foot④.in that case, please do not use the wiper○...
Page 21
⑪ (5) Insert the sewing material⑩under the work holder and turn the sewing machine pulley by hand ⑫ then,stop the presser foot at the lowest position. ⑭ ⑫ (6) Loosen the presser foot bar setscrew and move the presser foot bar⑦then,adjust the presser foo ⑫...
7-7.2 Adjustment of the presser foot lift during the sewing [NOTE]The presser foot lift during the sewing can be adjusted 0 and 2~10mm. (1) The presser foot lift during the sewing becomes 4~10mm at the condition which the connection of the link②and the lever③with the shoulder screw①is as shown on the figure and it becomes 2 to 4 mm if the connection is made with A hole,and it becomes 0 mm if the connection is made with B hole....
7-7.3 Adjustment of the presser foot timing [NOTE] The presser foot up and down movement during the sewing synchronizes with the needle up and down movement. With changing this synchronized timing to the sewing materials,the skip stitches can be prevented or the seam tightness can be improved. For example,the delay of the presser foot timing against the needle movement prevents the skip stitches especially to the thin materials,and the advance of the presser foot timing can improve the seam tightness especially to the thick materials....
7-7.4 Adjustment of the presser foot standard height Note: the standard height of the presser foot is 20 mm. (1) 、Open the head panel , the attachment block ① into the needle on the surface, presser foot ② down to the gauge①, height of 20mm. (2)...
7-8 Adjustment of the bobbin winder (7) Adjustment of the winding volume Loosen the setscrew②of the adjusting lever①and adjust the position of the adjusting lever①.If move the adjusting lever①to the arrow direction “a” the Winding volume is reduced,and if move the adjusting lever①to the arrow direction “b”,...
7-10 Adjustment of the trimmer cam follower (1) Turn the power switch OFF and remove the top cover. (2) Under the sewing machine regular stop condition(the needle stop position is upper and the take up lever stop position is highest),loosen the setscrew⑤of the cam follower lever ④and adjust the cam follower②to be positioned to contact with the shoulder portion③of the trimmer cam①with having about 1 mm clearance between the cam follower②and the trimmer cam①.After this adjustment,...
7-12 Adjustment of the fixed knife position (1) Open the cylinder cover①. (2) Remove the E-shaped snap ring④,which engages the movable knife②and the link③. (3) Loosen the setscrews⑤then, remove the sliding plate⑥. (4) Turn the sliding plate ⑥ upside down and loosen two setscrews⑨then,adjust the fixed knife ⑩...
7-16 Cancellation of the trimming function If the automatic trimming is not required during the sewing operation ,cancel the Trimming function with the setting panel of the control box . 7-17 Adjustment of the upper thread tension release [NOTE] (a) The upper thread tension release works when the upper thread is trimmed automatically or the presser foot is lifted during the work holder feeding.
Page 29
(1) Turn the power switch cancel sewing area limit with the operation panel. (2) After the cancellation of the sewing area limit, once. Turn the power switch OFF. 7-18.1 Shifting the mechanical home position to the X direction (1) Remove cover (right),(left) and X cover.
8 MAINTENANCE Caution ★Please make sure to turn the power switch always OFF when clean up the sewing machine. ★Before or after the sewing operation,clean up the sewing machine and check the Oil level in the oil tank. 8-1 Cleaning (1) Turn the power switch OFF....
9 BAD SEWING CONDITION&ITS CAUSE AND REM EDY [NOTE]Please fix the troubles during the sewing machine operation with referring to the following instructions.Beside,if the trouble conditions are not coming under these classification,please contact the sewing machine dealers nearby. Cause Remedy Ref.
Page 32
Cause Remedy Ref. page & condition item Too short bobbin thread by Use non racing spring with bobbin — bobbin spinning after trimming Bobbin thread tension is too Loosen bobbin thread tension spring tight Thread tail from needle is Decrease pre-tension 7-16 Skip stitch very short after trimming...
Page 33
Cause Remedy Ref.page & condition item Upper thread tension is not Increase upper thread tension tight enough Adjust tension regulator position 7-17 Thread tension regulator’s properly discs are opened during Adjust upper tension release position 7-17 sewing properly Stitch forming Presser foot position is not Adjust presser foot position properly is loose...
Page 34
Cause Remedy Ref. page & item condition X-Y detectors cable are Connect X-Y cables precisely — disconnected X-Y detectors cable are Change them new detectors — Work holder out of order does no stop at Detector detector Adjust the clearance properly 7-19 home position plate clearance is too big...
Page 77
SHANGHAI BIAOZHUN HAILING SEWING MACHINERY CO., LTD. ADD: NO.850 Shulin Road, Songjiang District Shanghai, P.R.China Zip Code: 201612 Overseas Business: TEL: 86-21-64853303 FAX: 86-21-64854304 E-mail:sales@highlead.com.cn http://www.highlead.com.cn The description covered in this manual is subject to change for improvement of the commodity without notice 2018.5. Printed...