Direct drive, high speed, 1-needle lock stitch machine with an automatic thread trimmer (59 pages)
Summary of Contents for SunStar KM-380BL
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User’s Manual KM-380BL 1 needle, unison feed, lockstitch cylinder bed type sewing machine (with vertical large hook) KM- 390BL 1 needle, unison feed, lockstitch cylinder bed type sewing machine (with horizontal large hook) KM-390BL KM-380BL 1) For proper use of the machine, thoroughly read this manual before use.
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1. Thank you for purchasing our product. Based on the rich expertise and experience accumulated in industrial sewing machine production, SUNSTAR will manufacture industrial sewing machines, which deliver more diverse functions, high performance, powerful operation, enhanced durability, and more sophisticated design to meet a number of user’s needs.
Safety Rules for Machines Safety labels in the manual are categorized into danger, warning and caution. Failure to follow the safety rules may result in physical injuries or mechanical damages. The safety labels and symbols are defined as follows. [The meaning of the safety labels] Danger Instructions here shall be observed strictly.
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Installation”. 1-3) Troubleshooting If in need of troubleshooting, call a trained A/S engineer who has been educated by Sunstar. ⓐ Be sure to turn the power off before cleaning and repair. And wait for about 4 minutes until Danger the machine discharges completely.
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The KM-380BL/390BL Series are manufactured for industrial use to sew textiles and other 1-4) Machine similar material. When running the machine, users should observe the following things. Operation ⓐ Read the manual before operation of the machine to fully understand the details about its operation.
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1-6) Position of “Caution” is attached to the machine for safety. Caution Mark In case of starting to run the machine, read the directions of “Cautions” carefully. [Position of Caution Mark] CAUTION 경 고 Do not operate without finger guard and safety devices.
1) Confirming oil supply A. Confirming oil tank KM-380BL/390BL In case of oil tank installed in the upper part of arm, supply oil to the level of the marked line after opening the cover .
Start to work on the sewing machine only after the motor has come to a complete stop. 1) Inserting needle KM-380BL/390BL As in Figure 9, move the needle upper end so that it directly touches the upper side of the stopper hole when the groove of the needle is inserted facing left.
4) Inserting lower thread KM-380BL [Figure 11] a. Inserting and removing bobbin case (Refer to Figure 11) - The bobbin case is removed from the hook when you grab and pull the bobbin case handle . (The bobbin is separated when you release the handle .) - In case of inserting the bobbin case , grab the handle and insert.
Start to work on the sewing machine only after the motor has come to a complete stop. 5) Routing upper thread KM-380BL/390BL Place the thread take-up lever to the highest position and hang the upper thread like in Figure 14.
▶Only trained engineers must perform repair or inspection of the machine. ▶For electrical repair or inspection, always consult with qualified technicians or agent. 7) Adjusting presser foot pressure KM-380BL/390BL Turning the tension adjustment screw clockwise will make the presser foot pressure stronger, and counter clockwise to make it weaker.
9) Adjusting sub presser foot and upper feed presser foot KM-380BL/390BL It is normal that both auxiliary presser feet and upper feed presser foot more up and down to the same height. Take the following steps either to adjust the stroke of both to be the same or to make one of the two adjusted lower or higher, depending on sewing materials.
10) Adjusting timing of sub presser foot, upper feed presser foot and needle KM-380BL/390BL When the needle goes downward, the upper feed presser foot should already be contacted with the feed dog before the end of needle touches with the upper side of feed dog . And when the needle...
12) Timing of needle plate, needle and feed dog KM-380BL Locating the feed dog and the needle plate a. Loosen the screw in Figure 23. Adjust the location of the feed dog so that the gap between the feed dog and the needle plate before and after the movement is same.
[Figure 25] 13) Adjusting timing of needle and hook Thread hole KM-380BL a. Place the stitch to “0” and turn the pulley to place the needle Hook point bar to its lowest point. Later, like in Figure 26, ascend the 2.4mm...
. [Figure 28] 15) Assembling feed cam Feed cam “A” Feed cam “B” KM-380BL The standard is when the No. 1 fixing screw of the feed cam “A”, the center of No. 1 fixing screw of the feed cam “B”,...
Causes of Trouble and Troubleshooting 1) Sewing machine troubleshooting Symptom Checkpoints Root cause Corrective action Direction and height of Reinsert the needle correctly and Needle is inserted into wrong position needle place closely it to its highest position Needle Needle is bent Change the needle Timing of feed dog Bad timing of feed dog...
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Symptom Checkpoints Root cause Corrective action Direction of the needle Needle is not inserted correctly Insert the needle correctly Blade side of movable Scratch and abrasion of movable Replace movable knife or fixed knife and fixed knives and fixed knives Trimming miss Trimming cam timing The timing of trimming cam is wrong...
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what table to use with the sun star cylinder arm??