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From the library of: Superior Sewing Machine & Supply LLC

Summary of Contents for W-8042

Page 1: ...illpecial INSTRUCTION MANUAL W 8042 TWO NEEDLE DOUBLE OHAINSTITCH FLATBED MACHINE WITH TOP COVER THREAD THIS MACHINE IS WELL SUITED FOR ATTACHING POCKETS POR TROUSERS AND JEANS W From the library of Superior Sewing Machine Supply LLC ...

Page 2: ...ch Length 9 Adjustment of Differential Feed Ratio 10 Adjustment of Feed Dog height 11 Needle Clamp Alignment 12 Needle Bar Height 13 Needle to Looper Distance 14 Needle to Looper Clearance 15 Looper Avoid Motion 16 Needle Guard 17 Looper Thread Take Up Adjustment 18 Needle Thread Take Up 19 Top Covering Looper Adjustment From the library of Superior Sewing Machine Supply LLC ...

Page 3: ...nes with top matic lubrication double disc rotary take up and thread tension release mechanism Machine Specifications number of needle feed needle bar needle to W8042 neeaies 2 1 4 differential 1 1 00 c 1 o 1 r 4 0 W8042 1 3 j plain j 10 8 4 0 Stitch length 8 to 14 stitches per inch Needle bar stroke 31mm Needle type UY 128 GAS itlO to y 90 Lubrication system Fully automatic Maximum speed 4500 sti...

Page 4: ...lesso 33 Filling oil resevoir remove cap A and fill with oil to line B of oil guage Fig 2 Draining oili Remove screw E to drain oil Drain and refill with fresh oil after the first month of operation and every six months thereafter Servicing filter Inspect the filter after 10 days in operation there after at one month intervals Fig 2 Clean or replace the filter as necessary Figure 2 From the librar...

Page 5: ...e machine CFig X O Figure 3 V V O correct X incorrect 6 Threading Q Pass both upper and lower threads copectly Adfust Adjust the tension of thread with the thread tension nut Adjust SO that satisfactory stitching can be obtained at a tension of as low as practicable Figure 4 From the library of Superior Sewing Machine Supply LLC ...

Page 6: ...the difficulty of threading multiple loopers Figure 5 Looper threading as follows 1 Press at point A in fig 5 to expose the loopers for easy threading 2 Press up at point B in fig 5 or push loopers to the left to return the loopers to the operating position From the library of Superior Sewing Machine Supply LLC ...

Page 7: ...anged wrthrn the limits specified in the specifications on page 2 Figure 6 a Loosen Nut A in Fig 6 b Turn screw B in clockwise direction stitch length will be smaller L tL counter clock ise direction the strtch length wrll be made larger c Tighten Nut A d Run machine observe stitch length u Repeat adjustment until proper stitch length is achieved From the library of Superior Sewing Machine Supply ...

Page 8: ...io Figure 7 10 Adjustment of feed dog height ihen the feed dog is at its Shest position the teeth al Led h1 rfto t ron d r ar L der It the san e height 7 Needle plate Figure 8 0 8 1 2imn i 1 1 ir 11 Needle clamp alignment The needles must be centered in the needle plate holes loosen screw A in Fig 9 A Figure 9 To adjust From the library of Superior Sewing Machine Supply LLC ...

Page 9: ...11 Adjustment Loosen nut A it has a left hand thread and nut B it has a right hand thread on connecting rod C n Turn the connecting rod C forward or backward to obtain t e sion Fig 11 Re tighten both nuts first nut A then nut B Make sure both ball joints are in a vertical position 14 Needle to looper clearance The clearance from the looper to the needle when the looper reaches the center of the ne...

Page 10: ...guard of the W 8042 is mounted on the arm bed ting and is stationary But on the W 8042 1 it is mounted on the feed rocker so that the position of the needle guard is moving h the synchronization of the needle guard is as follows needle iLper comes to the middle of the l scarf the tip should be 1 0 mm below the top edge of the needle guard A Tig 1 0 nun w 8042 ThiridjustLnt is made by loosening scr...

Page 11: ...osition of the looper thread guide by he screw G so that the thread guide hole A shown in Fig 15 shall be on line of the main shaft Figure 15 6 7ni in Main shaft Timimg of looper thread adjusting cam Adjust the screw B so that the looper thread looper thread adjusting cam when the needle point is on the the looper Fig 16 Figure 16 From the library of Superior Sewing Machine Supply LLC ...

Page 12: ...ent a Adjust so that the gap between the front hook point of the spreader looper arid the front needle shall be 0 5 mm when the looper passes by the front needle and that the hook point shall be at the point A on the needle line 3 to 3 5 mm apart from the front needle when the looper is at its left dead point To adjust temporarily tighten the screws L and K Covering thread guide wire must push the...

Page 13: ... of the spreader looper to 8 mm Also adjust the distance between the underside of the spreader thread guide and the top surface of the spreader looper to 0 5 mm Adjust the distance between the spreader thread guide and the L guide to 1 mm 0 5 m til 4 0m ni 777 y m rm r M Figure 19 From the library of Superior Sewing Machine Supply LLC ...

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