Pfaff Industrial 937 Скачать руководство пользователя страница 28 | Manualshive

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background image

Adjustment

28

Fig. 13 - 23

3

2

1

13

.05.22

Torsion spring for the differential regulating shaft

(in machines without -918/14)

O

Turn the torsion spring

1

using the nut

2

(screw

3)

according to the

rule

.

Rule

When the presser foot is raised, at the stitch length setting "

0

"

and when the thumb

wheel

4

is set to "

+

4.5

"

and the thumb wheel

5

is set to "

0

", the guide pin

6

should rest in

the slotted lever

7

.

5

4

7

6

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...
26
27
28
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30
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Содержание 937

Страница 1: ...ADJUSTMENT MANUAL 296 12 19 340 002 Instruction Manual engl 10 16 937 This adjustment manual applies to machines from the serial number 8 300 001 and software version 0435 005 onwards ...

Страница 2: ... or translation of PFAFF adjustment manuals including parts thereof is only permitted with our prior agreement and citation of the source PFAFF Industriesysteme und Maschinen GmbH Hans Geiger Str 12 IG Nord D 67661 Kaiserslautern ...

Страница 3: ... of the stitch length adjusting wheel in machines without 918 14 20 13 05 15 Position of the stitch length adjusting wheel in machines with 918 14 21 13 05 16 Bottom feed dog zero position in machines without 918 14 22 13 05 17 Bottom feed dog zero position in machines with 918 14 23 13 05 18 Top feed dog connecting rod 24 13 05 19 Top feed dog zero position 25 13 05 20 Torsion spring for the reve...

Страница 4: ...ent 46 13 05 40 Feed difference 47 13 05 41 Top feed dog and presser foot pressure 48 13 05 42 Thread deflection bow 49 13 05 43 Knee lever travel limit 50 13 05 44 Knee lever backlash 51 13 05 45 Bobbin winder 52 13 06 Adjusting thread trimmer 900 24 53 13 06 01 Axial control cam position 53 13 06 02 Control cam pre calibrating 54 13 06 03 Thread catcher position and test cut 55 13 06 04 Control ...

Страница 5: ...ork sequence for machines that have to be completely adjusted Both the preceding and following chapters must be observed if only specific individual work steps are carried out The screws and nuts indicated in brackets are fastenings for machine parts which must be loosened before any adjustment and tightened again afterwards 13 01 Tools gauges and other accessories O O 1 set of screwdrivers with b...

Страница 6: ...d and press it down O O Turn the handwheel slightly back and forth until the adjustment pin engages in the crank cutout behind the bearing plate thus blocking the machine Hole 1 2 0 mm after bottom dead centre of the needle bar 2 0 after b d c Hole 2 top dead centre of the needle bar t d c Hole 3 0 25 mm after top dead centre of the needle bar 0 25 after t d c Hole 4 1 0 mm after top dead centre o...

Страница 7: ...e 13 05 01 Compensation weight O O Move the needle bar to b d c O O Turn the compensation weight 1 screws 2 according to the rule 1 2 Rule When the needle bar is in b d c the largest eccentricity of the compensation weight 1 should be in the top position ...

Страница 8: ...ule At zigzag stitch setting 0 and the Middle needle position setting the needle should pierce the middle of the needle hole looking in the sewing direction O O Move the needle bar to b d c O O Turn the eccentric pin 1 nut 2 and screw 3 according to the rule Fig 13 03 2 1 3 ...

Страница 9: ...tricity of the pin 4 to down O O Move the cutout of the guide bar 5 until it abuts the eccentric pin 4 turn the eccentric pin 4 according to the rule and tighten the nut 3 O O Slide the guide bar 5 down and up again up to the stop The bushing 6 must not move sideways re adjust the eccentric pin 4 if necessary O O Move the guide bar 5 until it abuts the eccentric pin 4 and tighten the screws 1 and ...

Страница 10: ...position O O Loosen the screw 2 O O Press the locking lever 1 until it pushes up against the zigzag stitch adjusting lever 3 O O Turn the pivot pin 4 to the left until it stops O O Release the locking lever 1 O O The locking lever 1 should be parallel to the zigzag stitch adjusting lever 3 O O Tighten the screw 2 1 3 2 4 ...

Страница 11: ...n adjusting lever 4 to Middle and loosen the screws 5 and 6 O O Allow the machine to run slowly and turn the zigzag stitch adjusting lever 3 to the right until the needle bar no longer moves sideways O O Switch off the machine move the screw 5 until it abuts on the right and tighten O O Loosen the screws 7 and adjust the scale 1 according to rule 2 O O Tighten the screws 7 The screw 6 remain loose...

Страница 12: ...ys to sewing direction Rule At zigzag stitch setting 0 and the Middle needle position setting the needle should pierce the middle of the needle hole looking crossways to the sewing direction O O Turn the eccentric pin 1 nut 2 according to the rule Fig 13 07 1 2 ...

Страница 13: ...n the scale 2 O O Turn the zigzag stitch adjusting lever 3 according to the rule O O Move the screw 4 until it abuts at the top and tighten Should the machine be fitted with a needle plate that has a smaller needle hole than the zigzag stitch width on the scale the zigzag stitch limit must be set according to the needle hole width of the needle plate 4 2 3 1 ...

Страница 14: ... stitch adjusting lever back and forth O O Move the needle bar to t d c coming from the right bottom dead centre and insert the adjusting pin into hole 2 of the bearing plate block machine O O Turn the zigzag eccentric 1 screws 2 according to the rule Make sure that the zigzag eccentric 1 protrudes about 5 mm from the right inner side of the cast wall O O Pull the adjusting pin out of the bearing ...

Страница 15: ...in the middle of the needle hole 2 At the largest zigzag stitch setting the needle hole should be the same distance from the middle puncture position on the left and right O O Let the needle pierce paper in the required zigzag stitch settings O O Adjust the zigzag eccentric 1 screws 2 without turning it according to the rule 2 1 ...

Страница 16: ...O Set the zigzag stitch adjusting lever 4 to 0 and slide the needle position adjusting lever 3 to the right and left until the needle is positioned exactly over each of the previously punctured holes O O Move the screw 1 until it abuts in the left needle position and the screw 2 until it abuts in the right needle position and tighten Rule The left and right deflection of the needle should be the s...

Страница 17: ...pin 3 is located in the middle of the slotted lever The ends of both of the racks 4 should be in line O O Turn both of the scale rings according to the rule and tighten the screws 1 Rule If the guide pin 3 is located in the middle of the slotted lever and the ends of the racks 4 are in line the zero marks of the thumb wheels 2 should be opposite the mark 5 4 2 3 1 2 5 ...

Страница 18: ...the rule and tighten the screws 4 and 5 O O Turn the clamp crank 9 so that it is parallel to the clamp crank 7 and tighten the screws 2 and 3 O O Turn the clamp crank 10 so that it is parallel to the bed plate and tighten the screw 6 O O Screw in the screw 12 and mount the needle plate in machines with the stitch length N24 Rule The reverse feed key 11 should be in its highest position at the larg...

Страница 19: ... 0 O O Whilst continuously turning the handwheel turn the shaft 2 screw 3 according to the rule O O Move the clamp crank 4 upwards until it abuts and tighten the screw 3 Rule With a stitch length setting of 1 5 and when both of the levers 1 are in position 0 the top feed dog and bottom feed dog should move by the same stroke when turning the handwheel 4 3 2 1 ...

Страница 20: ...in machines without 918 14 O O Turn the stitch length adjusting wheel 1 in the direction of the arrow until it stops O O Turn the eccentric pin 2 nut 3 according to the rule Rule With a stitch length setting of 0 the pointer 4 should be opposite the mark 0 of the scale 5 4 3 2 1 5 ...

Страница 21: ...usting wheel in machines with 918 14 O O Turn the adjusting wheel 1 screw 2 according to the rule Rule When the adjusting wheel 1 is turned forwards until it stop the 0 mark of the adjusting wheel 1 and the mark on the reverse feed key should match 2 1 2 0 2 4 1 1 3 0 ...

Страница 22: ...ting shaft 3 tightly O O Whilst continuously turning the handwheel turn the open ended wrench on the spring tension ring 2 according to the rule O O Move the adjusting crank 4 until it abuts the circlip 5 on the casting in this position and tighten the screw 1 O O Carry out a check according to the rule Rule The bottom feed dog should not move when turning the handwheel with stitch length setting ...

Страница 23: ...ating shaft 2 tightly O O Loosen the screw 3 O O Whilst continuously turning the handwheel turn the open ended wrench on the spring tension ring 1 according to the rule O O Move the adjusting crank 4 until it abuts the casting in this position and tighten the screw 3 O O Carry out a check according to the rule Rule The bottom feed dog should not move when turning the handwheel with stitch length s...

Страница 24: ...13 05 18 Top feed dog connecting rod O O Adjust the top feed dog connecting rod 1 screw 2 according to the rule Rule With a stitch length setting of 0 the crank 3 of the top feed dog connecting rod 1 should be horizontal 2 3 1 ...

Страница 25: ...n O O Turn the deflection crank 1 screws 2 according to the rule Rule If the thumb wheels 3 or the adjusting lever 3 in machines with 918 14 are in position 0 and the stitch length is set to 0 the top feed dog should not move when turning the handwheel 3 3 2 1 ...

Страница 26: ... 14 O O Turn the torsion spring 1 using the nut 2 screw 3 according to the rule Rule When the presser foot is raised at the largest stitch length setting and when the thumb wheels 5 are in position 0 the reverse feed key 4 should automatically go back to its top stop position when the key is pressed 5 4 ...

Страница 27: ...h 918 14 O O Turn the torsion spring 1 using the nut 2 screw 3 according to the rule Rule When the presser foot is raised at the largest stitch length setting and when the lever 4 is in position 0 the reverse feed key 5 should automatically go back to its top stop position when the key is pressed 5 ...

Страница 28: ...chines without 918 14 O O Turn the torsion spring 1 using the nut 2 screw 3 according to the rule Rule When the presser foot is raised at the stitch length setting 0 and when the thumb wheel 4 is set to 4 5 and the thumb wheel 5 is set to 0 the guide pin 6 should rest in the slotted lever 7 5 4 7 6 ...

Страница 29: ...h 918 14 O O Turn the torsion spring 1 using the nut 2 screw 3 according to the rule Rule When the presser foot is raised at the largest stitch length setting and when the lever 4 is moved up to the top until it stops and the lever 5 is in position 0 the pointer 6 should rest on the lever 4 4 3 2 1 6 5 ...

Страница 30: ...needle bar position 1 0 after t d c hole 4 the bottom feed dog should not move when the reverse feed key is pressed O O Whilst continuously pressing the reverse feed key turn the eccentric 1 screws 2 according to the rule the cutout in the eccentric 1 must be visible The eccentric 1 must not be adjusted axially 1 2 ...

Страница 31: ...ng movement Rule At stitch length setting 0 and a needle bar position 0 25 mm after t d c hole 3 the bottom feed dog should be at its upper turning point O O Turn the eccentric 1 screw 2 according to the rule The eccentric 1 must not be adjusted axially 1 2 ...

Страница 32: ...g belt 4 should be tightened so that the machine does not move sluggishly and the gear wheels do not exhibit noticeable backlash O O Adjust the eccentric bearing bush 1 screw 2 so that the driving belt 4 is in the middle of the bobbin lifter drive wheel 3 and turn according to the rule ...

Страница 33: ...to the right and remove the hook O O Loosen the screw 2 and loosen the linear cam underneath by tapping gently on the screw head O O Screw on the hook bearing bracket setting gauge O O The numbers 438 439 must be legible from the front O O Adjust or turn the hook bearing bracket 4 according to the rule O O Tighten the screw 2 O O Adjust the bobbin lifter according to chapter 13 05 32 Bobbin lifter...

Страница 34: ...05 28 Hook lubrication Rule A light oil strip should appear on a paper strip held over the needle plate cutout after approximately 10 seconds when the machine is running at full speed O O Turn the screw 1 according to the rule 1 ...

Страница 35: ...e needle bar 1 screws 2 without twisting according to the rule 13 05 29 Pre calibrating the needle height Rule When the needle position is in t d c hole 2 the clearance between the needle point and the needle plate should be 19 mm 1 2 19 mm ...

Страница 36: ...on setting Middle a zigzag setting of 0 and a needle bar position 2 0 after b d c hole 1 the hook point should be in the middle of the needle and the clearance between the needle and the hook point should be 0 05 to 0 1 mm 2 The lower bobbin position finger 3 should be mounted so that there is a clearance of 0 5 mm between the lower part of the bobbin case and the front edge of the bobbin case pos...

Страница 37: ...ng according to the rule Fig 13 32 13 05 31 Readjusting needle height Rule If the hook point is in the middle of the needle at zigzag stitch setting 0 and the Left needle position setting the top edge of the needle eye should be 0 5 mm below the hook point 2 0 5 mm 1 ...

Страница 38: ...rew 2 make sure that the bobbin lifter 1 abuts the clamp crank 3 13 05 32 Bobbin lifter position Rule 1 There should be a clearance of 0 5 mm between the top edge of the bobbin lifter and the inner edge of the lower part of the bobbin case 2 There should be a clearance of 0 8 mm between the bobbin lifter finger and the lower part of the bobbin case 3 The bobbin case position finger should protrude...

Страница 39: ... O O Turn the eccentric 1 screws 2 according to the rule Fig 13 34 13 05 33 Bobbin lifter movement Rule When the needle bar is positioned 2 0 after b d c hole 1 the bobbin lifter 3 should be in the right turning point 3 ...

Страница 40: ...dle of the needle plate cutout O O Turn the lifting crank 1 screws 2 and the clamp bushing 3 screws 4 according to the rule 13 05 34 Bottom feed dog height Rule At a stitch length setting of 0 and a needle bar position 0 25 mm after t d c hole 3 the bottom feed dog should be in the middle of the needle plate cutout and abut the feed dog height adjustment gauge along its entire length 3 1 1 mm ...

Страница 41: ...ighten the nut 10 O O Loosen the screw 2 push out the bearing pin 3 and pivot the connecting link 4 out of the yoke of the feed driving lever O O Move the lever 5 to its outer turning point O O Move the feed dog setting gauge under the presser foot with the cutout downwards O O Loosen the screw 6 and push out the eccentric pin 7 O O Loosen the screw 8 and raise the hand lever 9 O O Pierce the need...

Страница 42: ... Ensure free movement and if necessary align the lever 4 O O Tighten the screw 13 O O Set the stitch length to 0 O O Align the top feed dog foot in the middle of the presser foot cutout in the sewing direction and tighten the screw 2 O O Loosen the screw 6 O O Align the hole of the lever 7 with the elongated hole of the lever 8 without any lateral backlash if necessary adjust or align the lever 7 ...

Страница 43: ... 11 to its outer turning point O O Press the lever 7 in the feeding direction until you feel it reach the stop and tighten the screw 6 O O Loosen the screw 12 and align the top feed dog foot according to rule 2 O O Tighten the screw 12 ...

Страница 44: ...he needle O O Loosen the nut 2 and increase the pressure on the presser foot slightly using the screw 1 O O Fit the presser foot onto the needle plate O O Loosen the screw 4 adjust the eccentricity of the pin 3 to the needle bar and tighten the screw 4 O O Turn the handwheel until the lever 5 is in the rear turning point O O Loosen the screw 6 and push the lever 5 backwards O O Push a gauge betwee...

Страница 45: ...lifting movement Rule The top feed dog should fit on the bottom feed dog when the upwardly moving bottom feed dog has reached the top edge of the needle plate at stitch length setting 2 O O Turn the eccentric pin 1 screw 2 according to the rule 1 2 ...

Страница 46: ... position 1 0 after t d c hole 4 the Top feed dog vibrating presser feed dog should not move when reverse feed key is pressed O O Raise the presser foot O O Turn the eccentric 1 screws 2 so that the second screw is visible from the rear looking in the direction of rotation O O Turn the eccentric according to the rule 1 2 ...

Страница 47: ...o top feed thumb wheels are in position 0 and the largest stitch length is set the sliding movement of the top feed dog and bottom transporter should be the same when turning the handwheel O O Adjust the pin 1 nut 2 in the elongated hole according to the rule 1 2 1 ...

Страница 48: ...ear on the material O O Position the top edge of the screw 1 approx 13 mm below the top edge of the housing O O Loosen the nut 2 O O Turn the screw 3 so that there is a clearance of approx 11 mm between the collar thereof and the machine housing The pressure on the top feed dog screw 1 and the presser foot screw 2 can be increased or reduced as required 3 2 1 11 mm ...

Страница 49: ...en the needle bar is in b d c the top edge of the thread guide hole should be at the same level as the lower edge of the thread deflection bow O O Adjust the thread deflection bow 1 screw 2 according to the rule making sure that it is parallel to the bed plate 2 1 ...

Страница 50: ...lever to the right until it stops and hold firmly making sure that the presser foot does not lift off the feed dog setting gauge O O Screw in the screw 2 until it stops then unscrew it by one turn O O Tighten the nut 1 13 05 43 Knee lever travel limit Rule The hand lever should lower automatically and the presser foot should have lifted 7 mm off the needle plate when the knee lever is activated 2 ...

Страница 51: ... 51 Fig 13 45 O O Turn the nut 1 lock nut 2 according to the rule 13 05 44 Knee lever backlash Rule There should be noticeable backlash between the nut 1 and the fork 3 when gently activating the knee lever 2 1 3 ...

Страница 52: ...t the pin 3 screw 4 according to rule 2 13 05 45 Bobbin winder Rule 1 When the bobbin winder is switched on the bobbin winder spindle should be moved easily whereas when the bobbin winder is switched off the friction wheel 3 must not touch the drive wheel 1 2 The bobbin winder should switch off automatically if the thread fill is approx 1 mm away from edge of the bobbin 2 1 3 5 4 ...

Страница 53: ...ontrol cam position Fig 13 47 O O Adjust the control cam 1 screw 2 and the retaining collar 3 screw 4 according to the rules Rule 1 The roller 5 should have a clearance of 0 3 mm to the control cam 1 2 The retaining collar 3 should abut the control cam 1 1 2 3 4 4 0 3 mm ...

Страница 54: ... O Turn the control cam 1 screws 2 according to rule 1 and adjust according to rule 2 Rule 1 The roller lever 4 should engage in the corresponding control cam cutout in the needle rise position hole 1 2 The control cam 1 should abut the retaining collar 3 1 2 3 4 ...

Страница 55: ...and remove the mounting plate 4 O O Perform a test cut with double thread O O Adjust the cutting pressure by turning the screw 5 O O Insert the mounting plate 4 so that the edge of it is flush with the edge of the bed plate O O Tighten the screws 3 and insert the connecting rod 1 Rule When the thread trimmer is in the neutral position the edge of the thread catcher 6 should be flush with the edge ...

Страница 56: ...ol cam 1 screws 2 according to rule 1 and adjust according to rule 2 Rule 1 The thread catcher 5 should start its forward movement when the end of the hook plate 3 is positioned at the level of the right edge of the bobbin case position finger 4 2 The control cam 1 should abut the retaining collar 6 5 3 4 2 1 6 ...

Страница 57: ...nut 2 according to the rules O O Screw on the thread wiper again Rule 1 When the magnet 3 is activated the tension discs 4 should be at least 0 5 mm away from each other 2 When the thread trimmer device is in neutral position and the presser foot is on the needle plate tension should be fully activated 2 0 5 mm 3 1 4 ...

Страница 58: ...et update of control P40 CD as well as the DongleCopy PC tool can be downloaded from the Internet address https partnerweb pfaff industrial com 13 08 Internet update of control P40 CD O O You need a dongle with the appropriate machine software to be able to perform a control update O O You can obtain an empty dongle using the order number 72 250 303 91 O O The DongleCopy PC tool is needed to uploa...

Страница 59: ...B PH IND VCC VCC GND WT BN shield 1 2 3 4 5 9 BN YE GY WH GN 1 2 3 4 5 PE U V W 1 2 3 4 5 GN YE BN BK BU 1 2 3 4 1 shield Ground 2 3 4 5 n c n c 3 3V SDA n c n c SCL GND 6 7 8 IN EXT1 IN EXT2 IN EXT3 IN EXT4 N C IN EXT5 1 2 3 4 5 6 shield 7 8 9 IN EXT6 24V GND N C CAN L GND N C N C N C 1 2 3 4 5 6 shield 7 8 9 CAN H 24V N C E M M1 1 M1 Sewing Motor Nähmotor ID CAN ...

Страница 60: ... 8 9 10 11 12 13 14 15 16 17 18 19 24V magn GND 24V stab 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 24V magn 35 36 37 1 20 19 37 1 5 6 9 180 5V 0V shield SYNC function control box P40 CD input manuel backtack 5 input mount thread 6 input invers backtack 14 output led 31 OV U 19 24V only inputs 16 24V power 33 input stop 11 output trimmer 18 output backtack 34 output footlift 35 output thread ten...

Страница 61: ...Notes ...

Страница 62: ... is an authorised licensee of the PFAFF trademark PFAFF Industriesysteme und Maschinen GmbH Hans Geiger Str 12 IG Nord D 67661 Kaiserslautern Tel 49 6301 3205 0 Fax 49 6301 3205 1386 E mail info pfaff industrial com Gedruckt in der BRD Printed in Germany Imprimé en la R F A Impreso en la R F A ...

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