KANSAI SPECIAL DX9902-3U Instruction Download Page 21 | Manualshive

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KANSAI SPECIAL DX9902-3U Instruction Download Page 21

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ADJUSTING THE ROLLERS AND THE GUIDES

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11----1 Installing the rollers

1 Installing the rollers

1 Installing the rollers

1 Installing the rollers

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Install tension roller bracket A as shown in the

illustration.

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Install roller brackets B properly on the underside

of the table.

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Install tension bracket C on the underside of the

table (see the illustration).

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Summary of Contents for DX9902-3U

Page 1: ...INSTRUCTION Industrial Sewing Machines DX9902 3U DX9900 4U First published July 1997 No 970038...

Page 2: ...tarting the machine check to make sure the pulley cover safety cover etc are secured 3 Before adjusting cleaning threading the machine or replacing the needle be sure to turn off the power 4 Never sta...

Page 3: ...12 7 4 Stitch length 12 8 PRESSER FOOT 8 1 Presser foot pressure 13 8 2 Position of the presser foot foot lift 13 9 STITCH FORMATION 9 1 Position of the needle thread guides 14 9 2 Position of the thr...

Page 4: ...g the needle 2 Replacing the needle To replace the needle check the needle carefully to see that the scarf is turned to the rear of the machine see the illustration Then install the needle correctly 1...

Page 5: ...achine pulley turns clockwise as the handwheel does as seen from the machine pulley 2 2 2 2 2 Motor belt 2 Motor belt 2 Motor belt 2 Motor belt Motor 3 phase 2 pole 400W clutch motor Belt M type V bel...

Page 6: ...3 Replacing the oil and the oil element placing the oil and the oil element placing the oil and the oil element placing the oil and the oil element To extend machine life be sure to replace the oil af...

Page 7: ...4 4 SEWING MACHINE INSTALLATION 4 4 4 4 1 Cutting the machine table 1 Cutting the machine table 1 Cutting the machine table 1 Cutting the machine table...

Page 8: ...elt cover correctly by referring to the illustration 5 TIMING OF THE LOOPER TO THE NEEDLES 5 5 5 5 1 Angle and height 1 Angle and height 1 Angle and height 1 Angle and height for installing the looper...

Page 9: ...e holding the timing pulley upper by hand 5 5 5 5 3 Looper setting distance 3 Looper setting distance 3 Looper setting distance 3 Looper setting distance Adjustment should be made by referring to loop...

Page 10: ...oper front 5 Needle looper front 5 Needle looper front to to to to back relationship back relationship back relationship back relationship 2 3U When point B of the looper reaches left needle C there s...

Page 11: ...ght increases Then the point of the looper touches the right needle Skip stitching may occur when the looper moves to the right A thread chain is not produced smoothly When the timing mark is at point...

Page 12: ...3 3 5mm The amount of the looper front to back movement is factory set properly for needle count 14 Nm90 If you use needle counts 11 Nm75 adjust the amount as required Remove the inside cover Loosen...

Page 13: ...justment should be made on other double chainstitch machines These adjustments are made by loosening screws C and D The clearance between the left needle and the needle guard rear should be approximat...

Page 14: ...ed dog height tilt 1 Feed dog height tilt 1 Feed dog height tilt 1 Feed dog height tilt Height When the feed dog is at the top of this stroke the feed dog teeth should be parallel with and 1 0 1 2mm a...

Page 15: ...ength is adjustable from 1 4 to4 5mm The following table shows the number of stitches within 1 inch 25 4mm according to the stitch length Stitch length mm No of stitches within 1 4 5 5 5 4 0 6 5 3 0 8...

Page 16: ...sition of the presser foot foot lift 2 Position of the presser foot foot lift Fit the presser foot onto the presser bar so that the needle can drop correctly to the center of the presser foot needle d...

Page 17: ...sition of the thread guide on the needle thread take up up up up When the needle bar is at the bottom of its stroke needle thread take up bracket a should be level and the distance from the center of...

Page 18: ...he looper thread take oper thread take oper thread take oper thread take up up up up When the point of the left needle has reached approximately half of the looper blade from the top of its stoke the...

Page 19: ...ower knife A flush with the top surface of the needle plate Then tighten screw B 2 Loosen screws G on the collar left that was tightened temporarily The upper lower knives are overlapped by the spring...

Page 20: ...the stroke of the upper knife 5 Adjusting the stroke of the upper knife 5 Adjusting the stroke of the upper knife Set the stroke of the upper knife at approximately 8mm To change the stroke loosen nu...

Page 21: ...1 Installing the rollers 1 Installing the rollers 1 Installing the rollers Install tension roller bracket A as shown in the illustration Install roller brackets B properly on the underside of the tab...

Page 22: ...n may be changed causing trouble 4 When the start of sewing comes close to guide B press the knee switch The fabric is removed from the tape guard and the guide Then keep on sewing while checking the...

Page 23: ...on each elastic tape so that it cannot touch each needle see the illustration Adjustment is made by loosening screws A from the hole on guide holder upper cover B and moving the guide holder upper to...

Page 24: ...he stopper To position or remove the fabric raise hand lever A With the hand lever lowered adjust stopper B so that the clearance between the upper and lower pullers is 0 5mm Then tighten nut C 12 12...

Page 25: ...REPLACING THE TIMING BELT 13 13 13 13 1 Marks on the timing belts 1 Marks on the timing belts 1 Marks on the timing belts 1 Marks on the timing belts The X Series is available in timing belts of A B...

Page 26: ...looper to the extreme right end of its travel by turning the machine pulley Bring the needle bar down to the bottom of its stroke by hand 4 Then place the belt onto the timing pulley on the upper shaf...

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