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Replacing External Parts

MODEL: AirThread 2000D

To change the micro switch
(covers and looper threader switch lever)

To remove:
1. Remove the belt cover.
2. Remove the setscrew A and remove the switch set

plate 1.

3. Remove the setscrew B and remove the micro switch.
4. Remove the terminals from the relay cable RF (unit)

and the relay cable FF (unit).

To attach:
1. Insert the terminals into the relay cable RF (unit) and

the relay cable FF (unit).

2. Tighten the setscrew B to fix the micro switch to the

switch set plate 1.

3. Partially tighten the setscrew A to fix the switch set

plate 1 to the cover detecting base.

4. Close the side cover.
5. Adjust the position of the switch set plate 1 so that the

micro switch is set ON or OFF when the looper cover
is opened or closed.

6. Attach the belt cover.

Micro switch

Setscrew B

Setscrew A

Relay cable RF

Cover positipn detecting base

Relay cable FF

Switch set plate 1

Содержание AirThread 2000D

Страница 1: ...SERVICE MANUAL MODEL AirThread 2000D Second Edition xx May 2018...

Страница 2: ...e clearance of the needle and needle guard rear 23 To adjust the timing of the needle and the lower looper 24 To replace the upper looper and to adjust the position of the tip of the upper looper 25 T...

Страница 3: ...imum stitch length Refer to page 15 E Overlap of the upper knife and the lower knife Refer to page 17 F Leftmost position of the upper looper Refer to page 26 G Timing of the upper looper and the lowe...

Страница 4: ...Top cover To remove 1 Remove the setscrews 2 pcs on the rear side of the top cover 2 Release the hooks of the top cover from the front cover 3 Remove the top cover To attach Follow the above procedur...

Страница 5: ...AirThread 2000D Replacing External Parts Face plate 1 To remove 1 Remove the top cover 2 Remove the cap 3 Remove the setscrew 4 Slightly lower the needle threader lever and remove the face plate Cap S...

Страница 6: ...attach 1 Attach the face plate in place Hold the face plate with your finger Rib 2 Pull the front cover lightly and place the ribs into the inside of the front cover 3 Tighten the setscrew and attach...

Страница 7: ...ve the top cover 2 Open the looper cover 3 Remove the cap 4 Remove the setscrew A 5 Loosen the setscrew B on the base 6 Remove the belt cover 7 Close the looper cover To attach Follow the above proced...

Страница 8: ...emove the hinge screw 3 pcs and remove the rubber soles unit 3 Remove the setscrew 4 Remove the base plate Hinge screw Rubber sole unit Rubber sole unit Hinge screw Rubber sole unit Setscrew Hinge scr...

Страница 9: ...Setscrew To attach 1 Set the looper threader switch lever to the THREADING right side Make sure that the looper cover position detecting arm comes in front of the looper threader switch lever connect...

Страница 10: ...in reverse Make sure that set the front cover into the catch of the looper cover position detecting arm Setscrew A Setscrew B Looper cover position detecting arm Setscrew C Setscrew C Setscrew A Uppe...

Страница 11: ...lly tighten the setscrews 2 pcs 2 Open and close the side cover adjusting the position vertically and horizontally Make sure that there is no gap with the needle plate the rear cover or the looper cov...

Страница 12: ...belt cover and the side cover 2 Remove the setscrews A 2 pcs on the carrying handle 3 Remove the setscrews B 2 cps from the base 4 Loosen the setscrew C 5 Remove the rear cover To attach Follow the a...

Страница 13: ...2 mm through the hole 3 Loosen the setscrew with the hexagonal wrench 2 mm and adjust the needle bar height moving the needle bar up or down Be careful not to turn the needle bar while moving it Tight...

Страница 14: ...se the presser foot again Be sure that the distance between the presser foot and the needle plate is 5 2 to 5 8 mm 4 Turn the handwheel toward you Make sure that the clearance between the needle and t...

Страница 15: ...djust 1 Remove the top cover the belt cover the face plate and the rear cover 2 Loosen the setscrew 3 If the feed dog is lower than the needle plate turn the adjusting screw clockwise If the feed dog...

Страница 16: ...of the needle plate 5 Measure the gap a between the main feed dog and the sub feed dog 6 Turn the handwheel toward you to lower the main feed dog and the sub feed dog until the upper surface of the fe...

Страница 17: ...the distance is not 30 to 32 mm loosen the setscrew and adjust as follows If the stitch length is longer than 32 mm turn the stitch length adjusting pin to the direction where the differential feed a...

Страница 18: ...etscrews 2 pcs Turn the upper knife drive cam to adjust the timing Tighten the setscrews 2 pcs When the upper knife timing is late Turn the upper knife drive cam to the direction A When the upper knif...

Страница 19: ...pper knife and partially tighten the bolt 2 Set the upper knife to the lowest position by turning the handwheel toward you 3 Loosen the bolt Adjust the position of the upper knife so that the front lo...

Страница 20: ...the lower looper connecting pipe 4 Partially tighten the setscrews D 2 pcs to fix the lower looper connecting pipe arm Aligning the the screw hole of the lower looper with the screw hole of the lower...

Страница 21: ...nk shaft as shown 5 The tip of the lower looper should match with the guide line of the gauge 65 7 mm If not adjust the lower looper height position see next page Side cover Upper knife release knob P...

Страница 22: ...10 Tighten the setscrew C 11 Check the clearance between the needle and the lower looper the timing of the needle and the lower looper the timing of the upper looper and the lower looper and the clea...

Страница 23: ...heel toward you until the tip of the lower looper comes from the left to the rear groove of the right needle 8 Check if the clearance between the rear groove of the right needle and the tip of the low...

Страница 24: ...clearance between the upper looper and the lower looper Refer to pages 24 27 and 28 To adjust the clearance of the needle and needle guard front 1 Turn the handwheel toward you until the tip of the l...

Страница 25: ...the handwheel toward you until the tip of the lower looper comes from the left to the rear groove of the needle with the HAx1 SP 14 needle slightly deflected by the needle guard front Check the cleara...

Страница 26: ...fo the needle bar may be damaged 10 Remove the timing gauge Turn the handwheel toward you to raise the needle bar until the needle bar gauge touches the needle bar lower bushing 11 Loosen the bolt sli...

Страница 27: ...e upper looper to the leftmost position by turning the handwheel toward you 2 Loosen the setscrew When the upper looper moves down from the leftmost position place the upper looper tip gauge on the up...

Страница 28: ...tion of the tip of the upper looper If adjustment is required adjust the position as follows To adjust 1 Loosen the setscrews 2 pcs Adjust the position of the tip of the upper looper by moving the upp...

Страница 29: ...n in the Fig 1 when the lower looper moves from left to right and the upper looper moves upward Turn the spreader to the right 4 Place the plate gauge on the lower looper and check the position of the...

Страница 30: ...n the looper cover 2 While pressing the upper knife release knob turn it clockwise by half a rotation to deactivate the upper knife 3 Turning the handwheel toward you so that the upper looper intersec...

Страница 31: ...looper and the lower looper and the clearance between the upper looper and the lower looper and the clearance between the needle and the upper looper Refer to pages 24 to 29 1 Open the looper cover 2...

Страница 32: ...ase knob turn it clockwise by half a rotation to deactivate the upper knife 4 Set the chaining finger switch knob to S 5 Loosen the setscrews 2 pcs Adjust the position of the chaining finger by moving...

Страница 33: ...rrect turn the tension dial so that the thread tension becomes the value represented by 3 of the dial ignore the real number on the dial 3 Remove the top cover 4 Raise and hold the adjusting plate wit...

Страница 34: ...belt cover 2 Check the tension of the lower looper pre tension with the standard thread 3 If the thread tension is not correct adjust the tension by inserting a screwdriver in the slit of the thread t...

Страница 35: ...r set plate horizontally so that the hook comes through eye of the left needle or the right needle 6 Loosen the setscrews C 2 pcs Adjust the position of the threader shaft guide plate by moving it to...

Страница 36: ...oper threader air adjustment of the looper threader air is preferable to adjustment of the looper take up lever To check 1 Open the looper cover 2 Turn the handwheel toward you to set the upper looper...

Страница 37: ...not be coaxial or straight 6 Remove the top cover the face plate the belt cover the base plate the looper cover and the front cover Open the side cover To adjust Set the looper threader switch lever t...

Страница 38: ...fective Replace the looper threader device air unit 7 4To replace the looper threader device air unit NOTE Set the looper threader switch lever is set to SEWING the slide pipe is disengaged from the l...

Страница 39: ...eck 1 Place the machine with the rear cover down 2 Insert a screwdriver into the slit of the adjusting screw of the real left rubber sole Tighten the screw and loosen the screw by a quarter rotation T...

Страница 40: ...moving and attaching each part refer to the instructions in the related section To attach 1 Connect the cord of the replaced part to the machine socket unit 2 Tight the setscrews B 2 pcs to fix the ma...

Страница 41: ...er the rear cover and the machine socket unit 2 Remove the setscrews A 2 pcs 3 Remove the motor 4 Remove the setscrews B 2 pcs 5 Remove the machine socket cover 6 Remove the nuts 7 Remove the motor te...

Страница 42: ...belt tension is correct Standard tension The correct motor belt tension is when the deflection of motor belt is about 5 6 mm while pushing the motor belt by finger with a 300 gf 7 Loosen the setscrew...

Страница 43: ...nd remove the LED cord from the rear cord guide To attach 1 Insert the LED in the LED holder and close the hook 2 Insert the LED cord in the rear cord guide 3 Insert the LED connector in the machine s...

Страница 44: ...tach 1 Insert the terminals into the relay cable RF unit and the relay cable FF unit 2 Tighten the setscrew B to fix the micro switch to the switch set plate 1 3 Partially tighten the setscrew A to fi...

Страница 45: ...the terminals into the relay cable RF unit and the relay cable FF unit 2 Tighten the setscrew B to fix the micro switch to the switch set plate 2 3 Partially tighten the setscrew A to fix the switch...

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