Brother 1034DX Service Manual Download Page 74

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Adjustment

Adjus

tme

Adjus

tme

Over looper position adjustment

1. Turn the pulley counterclockwise rotation, and

then the over looper is the most left position.

2. Loosen the adjusting screw (screw, bind M4x4).

3. Set the gauge at the position of the figure.

4. Move the over looper, and then adjust the tip of

the over looper to the position of contacting with
the gauge.

5. Fasten the adjusting screw (screw, bind M4x4).

Over looper

Pulley

Screw, bind M4x4

Gauge

6.4 mm

Needle (left)

Over looper

Screw, bind M4x4

Summary of Contents for 1034DX

Page 1: ...MODEL Home Overlock Machine SERVICE MANUAL Nov 2015 Dec 2016 Published Revised c 2015 Brother Industries Ltd All rights reserved CONFIDENTIAL 2104D 2104DAV M343D 4100D SB3734T 2504D 1034DX ...

Page 2: ......

Page 3: ...LIST of UPDATE RECORD Date Added Models Contents Feb 2016 M343D 4100D Apr 2016 Jul 2016 SB3734T 2504D Dec 2016 1034DX ...

Page 4: ...Lower blade Looper 2 24 Needle plate assy Stitch width dial assy 2 25 Upper knife holder 2 26 Lower knife holder assy 2 27 Over looper L assy 2 28 Lower looper Movable needle guard 2 29 UL lever 2 30 Upper knife plate assy 2 31 Upper knife lever Upper knife arm Feed adjusting cam 2 32 OL link plate OL lever 2 33 OL eccentricity UL rod UL eccentricity 2 34 Feed mechanism 2 35 Differential adjusting...

Page 5: ...er position adjustment 3 10 Over looper timing adjustment 3 11 Over looper lower looper gap adjustment 3 12 Feed dog height adjustment 1 3 13 Feed dog height adjustment 2 3 14 Feed timing adjustment 3 15 Thread tension adjustment 3 16 Thread tension release adjustment 3 17 Stitch width dial adjustment 3 18 Lower knife Upper knife position adjustment 3 19 Motor position adjustment 3 20 Looper take ...

Page 6: ...1 1 1 Main mechanisms 1 2 Driveline 1 3 Outline of Mechanism ...

Page 7: ...Outline of Mechanism Outline of Mechanism Main mechanisms Main body Thread tension mechanism Looper mechanism Feed mechanism Upper blade Lower blade mechanism Driving shaft mechanism Presser foot mechanism Needle bar mechanism ...

Page 8: ...edle bar connecting link Needle bar rod Needle bar driving lever Needle bar eccentric wheel Needle bar connecting stud Needle bar Needle Driving shaft Pulley Pulley Needle bar rod Needle bar driving lever Needle bar connecting link Needle bar connecting stud Driving shaft Needle bar eccentric wheel Needle bar Needle ...

Page 9: ...ic wheel Feed rod Driving shaft Diferential feed bar assy Diferential feed link Diferential feed dog Feed bar lever Main feed bar Main feed dog Pulley Pulley Driving shaft Main feed dog Feed rod Feed bar lever Main feed bar Diferential feed link Feed link Diferential feed dog Feed bar eccentric wheel Diferential feed bar assy ...

Page 10: ...ment of upper blade Pulley Driving shaft Upper knife holder Upper knife plate assy Upper knife Upper knife link Upper knife arm Feed bar eccentric wheel Upper knife arm Upper knife link Upper knife plate assy Feed bar eccentric wheel Upper knife holder Upper knife Driving shaft Pulley ...

Page 11: ...O L shaft Lower looper Over looper Spiral bevel gears UL eccentricity OL eccentricity Spiral bevel gears Looper driving shaft OL link UL link OL lever UL lever OL link Looper driving shaft OL eccentricity Spiral bevel gears OL lever O L shaft Over looper UL eccentricity UL link UL lever Lower looper Driving shaft Pulley ...

Page 12: ...ith Assembling Note Main frame Covers Upper thread guide 2 2 Lamp Electrical parts Main motor unit 2 18 Presser foot unit 2 21 Upper blade Lower blade Looper 2 24 Feed mechanism 2 35 Driving mechanism 2 43 Needle bar 2 49 ...

Page 13: ...Disassembly 2 2 Disassembly Disassembly Main frame Covers Upper thread guide Main frame Covers Upper thread guide location diagram ...

Page 14: ...ting cables and removing accessories 1 Disconnect the Power cord if connected 2 Remove the two screws set screw socket CN M3x4 to remove the two needles 3 Remove the presser foot 4 Remove the sub table Fig 2 1 Set Screw Socket CN M3X4 Sub table Presser foot Set screw socket CN M3x4 Needle ...

Page 15: ...me Covers Upper thread guide 2 Clothplate cover assy 1 Remove the screw screw bind M4x6 and the screw screw bind M4x16 to remove the clothplate cover assy Fig 2 2 Screw Bind M4X6 Screw Bind M4X16 Cothplate cover assy Screw bind M4x16 Screw bind M4x6 ...

Page 16: ...2 5 Disassembly Disassembly Main frame Covers Upper thread guide 3 Front cover assy 1 Remove the two screws screw bind M4x12 to remove the front cover assy Fig 2 3 Screw Bind M4X12 Screw bind M4x12 Front cover assy ...

Page 17: ...r spring from the front cover assy Assembling note Check that there is front cover hinge plate between the retaining rings 3 Remove the screw tapping screw pan V M3x6 to remove the front cover hook Fig 2 4 Tapping screw pan V M3X6 Tapping screw pan V M3x6 Front cover hook Retaining rings E3 Retaining rings E3 Front cover guide shaft Front cover hinge plate Front cover spring Retaining rings E3 Fro...

Page 18: ...sher plain M3 and the differential dial 4 Turn the hand wheel by hand and move the looper thread take up A B to the lowest point 5 Remove the screw screw bind M4x6 and the three screws tapping screw pan V M4x10 to remove the panel plate L assy Fig 2 5 Screw Bind M3X8 Tapping screw pan V M3X20 Screw Bind M4X6 Tapping screw pan V M4X10 Tapping screw pan V M4x10 Thread take up cover Hook Presser foot...

Page 19: ...ew tapping screw pan V M3x8 to remove the washer spring 2 3 and the needle thread guide R from the panel plate L assy 9 Pull out the pin spring roll AW2 to remove the UL thread guide lever and the UL thread guide spring from the panel plate L assy Fig 2 6 Tapping screw pan V M3X8 Tapping screw pan V M3x8 Tapping screw pan V M3x8 Tapping screw pan V M3x8 Needle thread take up guide Needle thread gu...

Page 20: ...ead guide 5 Rear cover assy 1 Remove the screw set screw to remove the hand wheel 2 Remove the two screws tapping screw pan V M4x10 to remove the rear cover assy Fig 2 7 Set Screw Tapping screw pan V M4X10 Hand wheel Set screw Tapping screw pan V M4x10 Rear cover assy ...

Page 21: ...base assy 1 Remove the four spool cushions from the spool stand base assy 2 Remove the two screws tapping screw pan V M3x8 to remove the spool stand base assy from the rear cover assy Fig 2 8 Tapping screw pan V M3X8 Spool cushion Tapping screw pan V M3x8 Spool stand base assy Rear cover assy ...

Page 22: ...e from the spool stand shaft 4 Pull out the spool stand shaft from the spool stand base 5 Remove the screw tapping screw pan V M2x6 to remove the spool stand shaft base from the spool stand shaft Fig 2 9 Tapping screw pan V M2X6 Thread guide Tapping screw pan V M2x6 Tapping screw pan V M2x6 Spool stand shaft Spool stand base Spool stand shaft base ...

Page 23: ...nsion base 3 Remove the spring XB2471 from the thread tension release and the thread tension base Remove the thread tension release from the thread tension base Assembling note Fully tighten the screw after performing Thread tension release adjustment Fig 2 10 Screw bind M4x6 Screw bind M3X4 Thread tension base Thread tension L assy Screw bind M3x4 Screw bind M4x6 Washer plain S 4 2 Spacer 3x2 5 T...

Page 24: ...rs Upper thread guide 4 Remove the screw bolt socket M3x12 Loosen the nut 1 M4 to remove the tension dial four locations Fig 2 11 Bolt Socket M3X12 Tension dial yellow Tension dial green Tension dial pink Tension dial blue Bolt socket M3x12 Nut 1 M4 Nut 1 M4 ...

Page 25: ...sembling note Fully tighten the screw after performing Thread tension adjustment 6 Remove the retaining ring E3 to remove the thread tension dial the wave washer and the washer plain M4 from the thread tension shaft 7 Remove the thread tension nut from the thread tension shaft Fig 2 12 Retaining ring E3 Nut 1 M4 Tension disc A Tension release disc B Spring X77414 Thread tension shaft Thread tensio...

Page 26: ...ing note Fully tighten the screw after performing Thread tension adjustment 9 Remove the retaining ring E3 to remove the thread tension dial the wave washer and the washer plain M4 from the thread tension shaft 10 Remove the thread tension nut from the thread tension shaft Fig 2 13 Retaining ring E3 Nut 1 M4 Tension disc A Tension release disc B Spring X77414 Thread tension shaft Thread tension nu...

Page 27: ... to remove the washer spring 2 4 the looper thread take up B the looper thread take up A and the looper take up stand Assembling note Fully tighten the screw after performing Looper take up position adjustment Fig 2 14 Screw Bind M4X20 Screw bind M4x20 Washer spring 2 4 Looper thread take up B Looper thread take up A Looper take up stand ...

Page 28: ...ssembly Main frame Covers Upper thread guide 9 Oil pan 1 Remove the four screws set screw to remove the oil pan 2 Remove the four cushions C from the oil pan Fig 2 15 Set screw Set screw Oil pan Cushion C Cushion C Cushion C Set screw ...

Page 29: ...Disassembly 2 18 Disassembly Disassembly Lamp Electrical parts Main motor unit Lamp Electrical parts Main motor unit location diagram ...

Page 30: ...t 1 LED assy Motor L assy 1 Cut the band 1M Remove the screw screw bind M4x8 to remove the lamp holder 2 Remove the lamp holder from the LED assy Fig 2 1 Assembling note Arrange the wiring as shown in the following figure Screw Bind M4X8 Lamp holder Screw bind M4x8 LED assy Band ...

Page 31: ...olt to remove the two washers the two washers and the motor L assy Assembling note Fully tighten the screw after performing Motor position adjustment 4 Remove the retaining ring E5 to remove the motor pinion from the motor L assy Fig 2 2 Bolt Motor L assy Bolt Washer Washer Retaining ring E5 Motor pinion ...

Page 32: ...Disassembly 2 21 Disassembly Disassembly Presser foot unit Presser foot unit location diagram ...

Page 33: ...t screw to remove the presser foot holder assy 3 Remove the screw set screw socket CP M4x8 Pull out the presser bar to remove the presser bar bracket Assembling note Fully tighten the screw after performing Presser bar height adjustment Fig 2 1 Set Screw Socket CP M4X8 Set Screw Presser foot adjusting screw Presser bar spring Presser bar Set screw Set screw socket CP M4x8 Presser bar bracket Press...

Page 34: ...aining ring E4 from the presser lifter shaft assy 3 Remove the screw screw truss M3x8 to remove the thread tension release cam from the presser lifter shaft assy Assembling note Fully tighten the screw after performing Thread tension release adjustment Fig 2 2 Screw Bind M4X6 Screw Truss M3X8 Screw bind M4x6 Washer plains L4 Presser lifter shaft assy Retaining ring E4 Screw truss M3x8 Thread tensi...

Page 35: ...Disassembly 2 24 Disassembly Disassembly Upper blade Lower blade Looper Upper blade Lower blade Looper location diagram ...

Page 36: ...crew after performing Fixed needle guard position adjustment 3 Remove the screw screw bind M4x6 to remove the stitch width dial assy Assembling note Fully tighten the screw after performing Stitch width dial adjustment 4 Remove the screw screw bind M4x6 to remove the UL release maintenance spring Fig 2 1 Screw Bind M2X4 Screw Bind M4X6 Screw Flat SM4 37 40X8 Screw flat SM4 37 40x8 Screw bind M2x4 ...

Page 37: ...er knife holder Assembling note Fully tighten the screw after performing Lower knife Upper knife position adjustment 2 Remove the retaining ring E5 to remove the upper spring from the upper knife holder 3 Pull out the upper knife holder from the upper knife arm Fig 2 2 Screw Bind M4X8 Retaining ring E5 Upper spring Upper knife holder Screw bind M4x8 Washer spring 2 4 Knife release assy Upper knife...

Page 38: ... the screw after performing Lower knife Upper knife position adjustment 2 Remove the two screws screw pan M3x4 to remove the stitch tongue spring the stitch tongue and the stitch tongue stand from the lower knife holder assy 3 Remove the lower knife holder assy Fig 2 3 Screw Bind M4X6 Screw Pan M3X4 Lower knife Screw bind M4x6 Lower knife holder assy Screw pan M3x4 Stitch tongue spring Stitch tong...

Page 39: ...set screw socket CP M4x4 to remove the over looper L assy from the O L shaft 3 Remove the screw set screw socket CP M4x4 Pull out the guide shaft to remove the washer plain M SM4 76 and the OL shaft guide Remove the retaining ring E4 from the guide shaft Assembling note Check that the OL shaft guide is not a wobble and it moves smoothly Fig 2 4 Set Screw Socket CP M4X4 Set screw socket CP M4x4 Set...

Page 40: ...er Assembling note Fully tighten the screw after performing Lower looper position adjustment 2 Remove the two screws screw pan M3x4 to remove the movable needle guard from the UL lever Assembling note Fully tighten the screw after performing Movable needle guard position adjustment Fig 2 5 Screw Bind M3X6 Screw Pan M3X4 Screw bind M3x6 Screw pan M3x4 UL threader Lower looper UL lever Movable needl...

Page 41: ...P M4x4 to pull out the UL link shaft from the UL collar and the UL lever 3 Remove the retaining ring E5 from the UK link shaft 4 Remove the screw set screw socket CP M4x4 to pull out the UL lever shaft from the collar the UL lever and the washer plain S8 5 Remove the retaining ring E6 from the UL lever shaft Fig 2 6 Set Screw Socket CP M4X4 Set screw socket CP M4x4 UL link UL lever Collar UL colla...

Page 42: ...rm shaft 3 Remove the retaining ring E5 from the driving lever arm shaft 4 Remove the upper knife plate assy from the upper knife adjusting shaft 5 Remove the upper knife link from the upper knife plate assy Fig 2 7 Set Screw Socket CP M4X4 Stopper screw Upper knife link Feed eccentric wheel Set screw socket CP M4x4 Driving lever arm shaft Retaining ring E5 Upper knife link Upper knife plate assy ...

Page 43: ...t CP M4x4 from the upper knife arm Pull out the upper knife lever shaft to remove the upper knife lever and the vertical feed block from the upper knife arm 5 Remove the feed adjusting cam from the feed adjusting cam shaft 6 Remove the screw set screw socket CP M4x8 to remove the feed adjusting cam shaft Fig 2 8 Set Screw Socket CP M4X4 Set Screw Socket CP M4X8 Retaining ring E5 Upper knife lever ...

Page 44: ...remove the two OL links from the OL eccentricity 4 Pull out the OL lever from the OL lever shaft 5 Remove the screw set screw socket CP M4x4 to remove the OL lever shaft Assembling note Check that the end face of the OL eccentricity at the same grade level as the end face of the OL lever 6 Remove the retaining ring E6 from the OL lever shaft Fig 2 9 Screw Bind M4X4 Set Screw Socket CP M4X4 Set scr...

Page 45: ... from the UL rod Remove the screw screw pan M3x6 to remove the change spring and the spacer 3x2 5 from the UL link 4 Remove the stopper screw to remove the UL link from the UL rod 5 Remove the two screws set screw socket CP M4x4 to remove the UL eccentricity from the looper driving shaft Assembling note Fully tighten the screw after performing Lower looper timing adjustment Fig 2 10 Set Screw Sock...

Page 46: ...Disassembly 2 35 Disassembly Disassembly Feed mechanism Feed mechanism location diagram ...

Page 47: ...he adjusting link shaft 4 Remove the differential adjusting link and the differential lever link from the shaft of differential adjusting lever and the adjusting link shaft 5 Remove the retaining ring E4 to remove the wave washer the differential lever link and the differential adjusting link from the shaft of differential adjusting plate Fig 2 1 Screw Bind M4X6 Set Screw Socket CP M4X4 Differenti...

Page 48: ...the main feed dog and the arm bed 2 Remove the screw screw bind M4x6 to remove the feed bar stopper plate B Assembling note Check that the feed bar assy is not a wobble and it moves smoothly Fig 2 2 Screw Bind M4X6 Screw bind M4x6 Feed bar stopper plate B Arm bed Main feed dog Feed spring Feed bar assy ...

Page 49: ...ove the retaining ring E5 from the feed bar lever shaft Pull out the feed bar lever shaft to remove the feed bar assy Assembling note Fully tighten the screw after performing Differential adjusting plate Fig 2 3 Set Screw Socket CP M4X4 Arm bed Set screw socket CP M4x4 Feed bar assy Retaining ring E5 Feed bar lever shaft ...

Page 50: ...ng ring E4 BK from the feed bar lever shaft Pull out the feed bar lever shaft to remove the feed bar lever Remove the retaining ring E4 from the feed bar lever shaft 8 Remove the retaining ring E4 from the adjusting block shaft Pull out the adjusting block shaft to remove the feed link from the feed bar lever Remove the retaining ring E4 from the adjusting block shaft Fig 2 4 Set Screw Socket CP M...

Page 51: ...bling note Fully tighten the screw after performing Feed dog height adjustment 1 11 Remove the two screws bolt socket M3x8 to remove the two washer plain S3 and the differential feed dog from the differential feed bar assy Assembling note Fully tighten the screw after performing Feed dog height adjustment 1 Fig 2 5 Bolt Socket M3X6 Bolt Socket M3X8 Retaining ring E4 BK Link shaft Main feed bar Dif...

Page 52: ...g note Check that the screw A is contact to the cut surface of the driving shaft Check that the end face of the feed eccentric wheel at the same grade level as the end face of driving shaft Fully tighten the screw after performing Feed timing adjustment 4 Remove the feed rod from the feed eccentric wheel Fig 2 6 Set Screw Socket FT M4X4 Feed adjusting block Feed adjusting block shaft Feed rod Feed...

Page 53: ...f the feed dial and the groove of the feed adjusting gear are in the position shown in the following figure 4 Remove the retaining ring E5 from the driving lever arm shaft Assembling note Turn the dial counterclockwise rotation and then check the adjusting dial spring fall into the groove when it contact the stopper Fig 2 7 Screw Bind M4X6 Set Screw Socket CP M4X4 Screw bind M4x6 Set screw socket ...

Page 54: ...Disassembly 2 43 Disassembly Disassembly Driving mechanism Driving mechanism location diagram ...

Page 55: ...e the hand wheel assy from the mounting positions and pull out it from the needle bar rod Assembling note Check that the looper driving shaft assy and the driving shaft assy is not a wobble and it moves smoothly Fig 2 1 Screw Bind M3X6 Screw Bind M4X6 Screw bind M3x6 Screw bind M4x6 Washer plain L4 Bushing stopper Hand wheel assy Needle bar rod Mounting position Mounting position Driving shaft ass...

Page 56: ...move the washer 8 and the crank shaft bushing from the driving shaft 9 Remove the screw set screw socket CP M4x4 to remove the collar from the driving shaft 10 Remove the timing pulley B from the driving shaft Fig 2 2 Screw Pan M4X10 Set Screw Socket FT M4X4 Set Screw Socket CP M4X4 Screw pan M4x10 Crank shaft bushing Balance L Driving shaft Set screw socket FT M4x4 Set screw socket FT M4x4 Needle...

Page 57: ...at the end face of the looper driving shaft is contact to the end face of the spiral bevel gears L Check that the screw A is contact to the cut surface of the looper driving shaft 2 Remove the retaining ring E6 to pull out the looper driving shaft Fig 2 3 Set Screw Socket FT M4X4 Set screw socket FT M4x4 Retaining ring E6 Retaining ring E6 Looper driving shaft Looper driving shaft Spiral bevel gea...

Page 58: ...Differential adjusting lever Differential dial stand assy 1 Remove the two screws set screw socket CP M4x4 to remove the feed adjusting lever from the feed adjusting lever shaft Fig 2 4 Set Screw Socket CP M4X4 Set screw socket CP M4x4 Feed adjusting lever Feed adjusting lever shaft ...

Page 59: ...the feed adjusting lever shaft 4 Pull out the pin spring roll AW2 to remove the feed adjusting gears from the feed adjusting lever shaft 5 Remove the retaining ring E4 to pull out the differential dial stand assy Fig 2 5 Feed adjusting lever shaft Differential adjusting lever Retaining ring E5 Pin spring roll AW2 Feed adjusting gears Retaining ring E4 Differential dial stand assy ...

Page 60: ...Disassembly 2 49 Disassembly Disassembly Needle bar Needle bar location diagram ...

Page 61: ...nk Assembling note Fully tighten the screw after performing Thread take up position adjustment 4 Remove the screw set screw socket CP M4x8 from the needle bar connecting stud and pull out the needle bar Assembling note Fully tighten the screw after performing Needle bar height adjustment Fig 2 1 Screw Pan M3X10 Screw Bind M3X6 Screw Bind M4X6 Set Screw Socket CP M4X8 Screw pan M3x10 Screw bind M3x...

Page 62: ...the needle bar rod shaft assy from the needle bar driving lever 7 Pull out the needle bar rod shaft assy from the needle bar connecting link 8 Remove the retaining ring E5 from the needle bar rod shaft assy Fig 2 2 Set Screw Socket CP M4X4 Set screw socket CP M4x4 Retaining ring E5 Needle bar rod shaft assy Needle bar driving lever Needle bar connecting stud Needle bar connecting link ...

Page 63: ...edle bar 2 Needle bar driving lever assy 1 Remove the two screws screw bind M4x16 to remove the needle bar driving lever assy Fig 2 3 Screw Bind M4X16 Screw bind M4x16 Screw bind M4x16 Needle bar driving lever assy Needle bar driving lever assy ...

Page 64: ...e position adjustment 4 Remove the two screws set screw socket CP M4x4 to remove the needle bar driving lever from the needle bar rod shaft Assembling note Check that the screw A is contact to the cut surface of the needle bar rod shaft 5 Remove the needle bar rod from the needle bar rod shaft 6 Remove the retaining ring E4 from the needle bar rod shaft Fig 2 4 Set Screw Socket CP M4X4 Retaining r...

Page 65: ...e guard position adjustment 3 9 Over looper position adjustment 3 10 Over looper timing adjustment 3 11 Over looper lower looper gap adjustment 3 12 Feed dog height adjustment 1 3 13 Feed dog height adjustment 2 3 14 Feed timing adjustment 3 15 Thread tension adjustment 3 16 Thread tension release adjustment 3 17 Stitch width dial adjustment 3 18 Lower knife Upper knife position adjustment 3 19 Mo...

Page 66: ...ht of the presser bar 4 Fasten the screw set screw socket CP M4x8 for the presser bar bracket Key point Check that there is the needle at the center of the down position of the presser foot Presser foot lever Presser bar bracket Set screw socket CP M4x8 Presser bar Front view Gauge Presser foot Needle plate 5 mm Feed dog Side view Gauge Presser foot Needle plate Presser bar bracket Set screw socke...

Page 67: ...f the figure and then adjust the height of the needle bar while adjusting the needle left to the gauge 4 Fasten the screw set screw socket CP M4x8 for the needle bar connecting stud Key point Check that the 2 needles fall down the center of the groove of the needle plate Pulley Needle bar connecting stud Set screw socket CP M4x8 Needle bar 11 6 mm Needle plate Gauge Feed dog Needle left Needle bar...

Page 68: ...wo screws set screw socket CP M4x4 for the needle bar balance 3 Adjust the gap of the needle bar balance and the body to 3 mm 4 Fasten the two screws set screw socket CP M4x4 for the needle bar balance Pulley Needle bar balance Needle bar rod Set screw socket CP M4x4 3 mm Presser foot lever Needle bar rod Needle bar balance Needle bar balance Needle bar rod Set screw socket CP M4x4 ...

Page 69: ...the UL lever while turning the pulley counterclockwise rotation and then adjust the position of the tip of the gauge and the tip of the lower looper 4 Fasten the screw screw bind M3x6 for the lower looper Key point Check that the UL threader is the lowest position Needle plate UL threader Screw bind M3x6 Lower looper Movable needle guard UL lever Pulley UL lever Lower looper Gauge 2 7 mm Contact t...

Page 70: ...er and then turn the pulley counterclockwise rotation and then contact the needle clamp base 6 Turn the UL eccentricity and then set the lower looper at the position of the figure 7 Fasten the two screws set screw socket CP M4x4 for the UL eccentricity 8 Remove the screw set screw 3 75x8 and then remove the gauge Presser foot lever UL eccentricity Set screw socket CP M4x4 Pulley Needle bar Needle ...

Page 71: ...ever shaft assy 3 Move the UL lever shaft assy and then adjust the gap of the needle left and lower looper to 0 to 0 05 mm 4 Fasten the screw set screw socket CP M4x4 for the UL lever shaft assy Pulley Needle Lower looper UL threader Movable needle guard UL lever UL lever shaft assy Lower looper Contact to the end face Lelt needle Set screw socket CP M4x4 UL lever shaft assy 0 to 0 05 mm Left need...

Page 72: ...the movable needle guard and then adjust the gap of the lower looper to 1 5 to 2 0 mm and adjust the gap of the needle to 0 to 0 1 mm 4 Fasten the two screws screw pan M3x4 for the movable needle guard Pulley Needle Lower looper UL threader Movable needle guard UL lever Lower looper Contact to the end face Needle left Movable needle guard Screw pan M3x4 UL lever 0 to 0 1 mm 1 5 to 2 0 mm Needle le...

Page 73: ...e guard and then adjust the gap of the needle to 0 to 0 05 mm 4 Fasten the screw screw bind M2x4 for the fixed needle guard Pulley Lower looper Movable needle guard Needle plate Needle UL lever Lower looper Contact to the end face Needle left Needle plate Screw bind M2x4 Fixed needle guard 0 to 0 05 mm Needle left Lower looper Movable needle guard Fixed needle guard Fixed needle guard Needle plate...

Page 74: ...t left position 2 Loosen the adjusting screw screw bind M4x4 3 Set the gauge at the position of the figure 4 Move the over looper and then adjust the tip of the over looper to the position of contacting with the gauge 5 Fasten the adjusting screw screw bind M4x4 Over looper Pulley Screw bind M4x4 Gauge 6 4 mm Needle left Over looper Screw bind M4x4 ...

Page 75: ...the pulley and then adjust the gap of the tip of the over looper and the tip of the lower looper to 6 5 to 7 0 mm 3 Fasten the adjusting screw set screw socket CP M4x4 for the OL eccentricity OL eccentricity Set screw socket CP M4x4 6 5 to 7 0 mm Pulley Lower looper Lower looper Over looper Over looper Set screw socket CP M4x4 OL eccentricity ...

Page 76: ...e screw set screw socket CP M4x4 for the over looper assy 3 Adjust the gap between the over looper and the lower looper to 0 to 0 05 mm 4 Fasten the screw set screw socket CP M4x4 for the over looper assy 6 5 to 7 0 mm Lower looper Lower looper Over looper Over looper Set screw socket CP M4x4 Over looper assy 0 to 0 05 mm Lower looper Lower looper Over looper Over looper Set screw socket CP M4x4 O...

Page 77: ...e differential feed dog 7 Loosen the two screws bolt socket M3x6 for the main feed dog 8 Set the gauge at the position of the figure and then adjust the main feed dog to the position of contacting with the gauge 9 Fasten the two screws bolt socket M3x6 for the main feed dog Feed adjusting dial Differential dial Feed spring Pulley Bolt socket M3x8 Differential feed dog Needle plate Gauge Needle pla...

Page 78: ...gauge at the position of the figure and then turn the upper knife adjusting shaft and then adjust the differential feed dog to the position of contacting with the gauge 6 Fasten the screw set screw socket CP M4x4 for the upper knife adjusting shaft Feed adjusting dial Differential dial Feed spring Pulley Set screw socket CP M4x4 Upper knife adjusting shaft Gauge Needle plate Needle plate Different...

Page 79: ...el with the cut surface of the driving shaft 3 Secure the screw rear side of the feed eccentric wheel to the cut surface of the driving shaft and then secure the screw front side Set screw socket FT M4x4 Rear side Set screw socket FT M4x4 Feed eccentric wheel Feed eccentric wheel Align the screw hole with the cut surface of the driving shaft Set screw socket FT M4x4 Rear side Set screw socket FT M...

Page 80: ...ust the thread tension to 30g when the scale of the thread tension assy L is 4 3 Adjust the thread tension to 15g when the scale of the thread tension assy R is 4 4 Adjust the thread tension to 20g when the scale of the thread tension assy O is 4 5 Adjust the thread tension to 25g when the scale of the thread tension assy U is 4 Thread tension adjusting plate Notch Notch Thread Spun 60 Thread tens...

Page 81: ... the thread tension lever to the thread tension release 4 Fasten the screw screw truss M3x8 for the thread tension release cam Key point When tightening the screw make sure that there is a clearance between the tension disk A and the tension release disk B Thread tension dial Presser foot lever Screw truss M3x8 Thread tension release cam Thread tension release Thread tension lever Thread tension r...

Page 82: ...to the lower knife holder 4 Move the lower knife holder and then from the center of the needle left to the right side end of the lower knife to 4 8 to 5 2 mm 5 Fasten the screw screw bind M4x6 for the stitch width dial Stitch width dial Screw bind M4x6 Stitch width dial Stitch width dial Lower knife holder Lower knife holder Lower knife Upper knife Needle left 4 8 to 5 2 mm Screw bind M4x6 Stitch ...

Page 83: ...he upper knife is the lowest position 2 Loosen the screw screw bind M4x8 for the upper knife 3 Adjust the upper knife at the position of the figure 4 Fasten the screw screw bind M4x8 for the upper knife Key point Set the upper knife to the highest position and then put in the upper section of the knife release lever and the screw for the lower knife to the same line Screw bind M4x6 Lower knife Nee...

Page 84: ... Move the motor holder and then adjust the backlash of the pulley and the motor gear to 0 1 to 0 5 mm 3 Fasten the two screws bolt 7 14 for the motor holder Key point Check that the 3P socket is perpendicularity Bolt 7 14 Motor holder 0 1 to 0 5 mm Pulley Motor gear Pulley Motor gear Bolt 7 14 Perpendicularity 3P socket ...

Page 85: ...sion of the thread guide 8 to the right side of the looper thread take up A to 3 4 1 0 mm and then adjust the position of from the extension of the thread guide 8 to the left side of the thread take up B to 4 6 1 0 mm 4 Fasten the screw screw bind M4x20 for the looper thread take up A B Pulley Looper thread take up B Over looper assy Looper thread take up A Screw bind M4x20 3 4 1 0 mm 4 6 1 0 mm T...

Page 86: ...r the thread take up 4 Move the thread take up and then adjust the position so that the hanging condition of the needle thread which hangs the needle thread take up guide and the thread take up is 0 to 0 5 mm 5 Fasten the screw screw bind M4x6 for the thread take up 6 Attach the thread take up cover Pulley Thread take up Needle thread take up guide Screw bind M4x6 0 to 0 5 mm Thread take up Needle...

Page 87: ...34KH15HF884B02 03 ...

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