Husqvarna Saphire Series Скачать руководство пользователя страница 23 | Manualshive

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23

104 72 79-26

14.Threading device

Check

1. Insert a new # 70 needle.
2. Bring the needle bar to its highest turning position.
3. The threader hook shall go smoothly into the needles eye. See Fig 1 and Fig 2.

Adjustment

1. Loosen the two screws (A) on the back of the threader head (B).
2. Move the white needle thread head (B) so that the threader hook (D) does not touch the needle eys inside

XSRUGRZQ6HHÀJ

3. Move the silver looking needle thread hook holder (C) so that the threader hook (D) does not touch the

QHHGOHH\HVLQVLGHVLGHZD\V6HHÀJ

4. Tighten the screws.

NOTE! Both settings are adjusted at the same time

Settings

B

C

A

Fig 2

D

D

Fig 1

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Содержание Saphire Series

Страница 1: ...SERVICE MANUAL 104 72 79 26 Made in Sweden 2 April 2007 2007 VSM Group AB All Rights Reserved ...

Страница 2: ...etting 26 19 Stitch length balance 27 20 Lower thread tension thread tension of the bobbin case 28 21 Thread tension releaser 830 850 29 22a Upper thread tension 830 850 30 22b Upper thread tension 870 31 23 Setting the thread take up spring 32 24 Disconnection when winding the bobbin 33 Service program Sapphire 34 Functions of the service menu 1 Step motors 35 Functions of the service menu 2 Disp...

Страница 3: ...cover compl 830 850 56 Hook cover compl 870 57 Replace thread cutter knife 870 58 Hook complete 59 Feeding unit step motor 60 Feeding unit 61 Lower Shaft 62 Bobbin winding device 63 Threadcutting unit 64 Remove Thread tension cover 65 ...

Страница 4: ...XV VHWWLQJV ZKLFK PXVW EH PDLQWDLQHG WR HQVXUH WKDW WKH PDFKLQH IXQF tions satisfactorily The second section covers dismantling and mounting instructions The diagrams only give indication as to where the detail or mechanism is located in the machine For more detailed information regarding the construction etc refer to the diagrams in the spare parts list ESD ATTENTION It is of the utmost importanc...

Страница 5: ...ded to servicing this machine 1 On several different occasions the needle is used as a setting gauge The setting ratings are adapted to needle 90 Make sure to use an undamaged needle 2 Gauge for setting the timing of the hook in relation to the needle Ref No 63 102600 18 000 Spacer Ref No 61 111600 02 000 Feeler gauge 2 5 Ref No 413 10 22 01 Needle clamp 3 Gauge for the feed dog lift Ref No 413 12...

Страница 6: ...6 104 72 79 26 Settings 1 2 3 4 5 6 8 10 11 12 15 7 9 13 8 ...

Страница 7: ...set in relation to the needle plate slot 8 The height of the hook The distance between the bobbin case and the case holder should be 0 5 0 1 0 05 mm 9 Feed dog height When Feed dog teeth are in its highest position they should be 0 9 1 1 mm above the needle plate 3 The play of the hook gear It is impossible to obtain an equally large play in one rotation of the cog wheel but it should be as small ...

Страница 8: ...f the hook should pass behind the centre of the needle when the needle is 2 5 mm above its lower turning posi tion 14 Threading device With a new 70 needle the threader hook should go smoothly into the needles eye 15 Presser foot parallelism to the feed dog The presser foot should be parallel to the feed dog 16 Presser foot height to the needle plate When the presser foot is in its highest lifting...

Страница 9: ...on dial is set at 5 a correct take up should be obtained at straight stitching and zig zag using normal cotton fabrics and polyester thread 23 Setting the thread take up spring The thread take up spring should have completed its movement when the the needle eye reaches the fabric The check has to be carried out at straight stit ching and using normal cotton fabrics and polyester thread Settings Qu...

Страница 10: ...HOW WHQVLRQ FDQ QRZ EH DGMXVWHG E WXUQLQJ WKH HFFHQWULF EHDULQJ XQWLO WKH EHOW WHQVLRQ LV ÀUP NOTE The hole C should always be on the front half 2 Belt tension motor belt 1 Remove rear cover 2 Move the tension spring A The belt tension spring A should normally be positioned in middle slot on the belt tension device Settings C B A A ...

Страница 11: ... the revolution Check 1 Rotate the hook back and forth and check the play 2 Do this check on at least 3 different spots during the revolu tion of the cog wheel Move the cog wheel using the hand wheel Adjustment 1 Loosen screw A holding the bearing clamp 2 The play can now be adjusted by turning the eccentric bearing C NOTE The hole B in the bearing shall always be on the lower half Settings ...

Страница 12: ...shall be 1 5 mm from the top of the frame opening Alt Check KHQ WKH SLQ RI WKH ZRUP JHDU DUH SRVLWLRQHG DFFRUGLQJ WR ÀJ WKH WLS RI WKH KRRN VKRXOG SRLQW straight backwards Note The position of the pin shall be 1 5 mm from the top of the frame opening Adjustment 1 Remove the rear and front covers 2 Remove the hook cover 3 Loosen screw B Remove the hook and set it into its cor rect position 4 Turn t...

Страница 13: ...ible but max 0 15 mm Adjustment If the gap is too large 1 Loosen the screw A 2 Turn screw B clockwise until the needle touches the tip of the hook 3 Turn screw A until the gap is correct If the gap is too small 1 Loosen the screw B 2 Turn screw A to make the gap larger and then loo sen the screw A again 3 Turn screw B clockwise until the needle touches the tip of the hook 4 Turn screw A until the ...

Страница 14: ... Insert a new needle size 90 universal in the machine 2 In the feeding direction the needle should descend right into the middle of the needle hole of the needle plate Adjustment Loosen the 4 screws A of the hook cover and move it so that the needle sideways descends in the middle of the needle plate Settings A A A A ...

Страница 15: ... plate Check 1 Sideways the feed dog should be symmetrically set in relation to the needle plate slot Adjustment 1 Loosen the 2 screws A of the feeding unit 2 Move the feeding unit sideways until the feed dog teeth is centered in the needle plate slot 3 Tighten the screws A ...

Страница 16: ...LQ FDVH GRZQ ZLWK D ÀQJHU 3 Put a 0 6 mm feeler gauge between the bobbin case and the bobbin case holder Place it where the threading arrow is located on the bobbin case holder LIW DZD WKH ÀQJHU VSULQJ LV SXVKLQJ WKH KRRN XSZDUGV PDNH VXUH WKDW LW URWDWHV XS VR LW LV SRVLWLRQHG against the feeler gauge 5 Tighten the screw A 6 Re check the setting now with a 0 5 feeler gauge It shall go in but a sm...

Страница 17: ...with setting gauge 413 12 73 01 Adjustment 1 Bring the feed dog to its highest position 2 Remove the needle plate 3 Adjust with a Torx 10 the adjustment nut A until a correct feed dog height 0 9 1 1 mm is obtained Turn Clockwise it will be higher Turn Anti Clockwise it will be lower 4 Mount the needle plate and check the height Settings 0 9 1 1 mm 413 12 73 01 ...

Страница 18: ...ram of the machine 2 In Menu 1 Press Key No 1 Needle to its centre position in the A presser foot 3 In Menu 1 Press Key No 2 The needle shall now take its left position The gap between the segment A and the calibration stop B should now be zero 0 mm 4 In Menu 1 Press Key No 5 If the gap is ZERO 0 mm the needle should not move in any direction 5 In Menu 1 Press Key No 1 Needle to its centre positio...

Страница 19: ...the its calibration stop position 9 Turn the calibration stop B until the gap is correct 0 mm and then tighten the screw F NOTE The position of the eccentric 8 To check if the gap is 0 mm between calibration stop B and cog segment A put on the A foot again 9 Press In Menu 1 Key No 1 Needle must now go to its centre position in the presser foot 10 In Menu 1 Press Key No 2 The needle shall now take ...

Страница 20: ...ook ring should be 28 95 0 2 mm The check is executed with needle bar height gauge which is 28 95 mm long Order nr 412 35 29 02 Adjustment 1 Bring the needle to its lower turning position 2 Loosen screw A and move the needle bar until the correct measure is obtained 3 Tighten the screw NOTE Check by means of a twin needle that the needle bar is not twisted it may cause jump stitches when sewing wi...

Страница 21: ...ar and tighten its screw lightly 4 Take the 2 5 mm feeler gauge and put its cutout on the needle bar above the clamp 5 Loosen the clamp a little and push both feeler gauge and clamp upwards against the spacer 6 Tighten the screw on the timing clamp 7 Remove the 2 5 mm feeler gauge 8 Turn the hand wheel in the sewing direction until the timing clamp stops against the spacer 9 The tip of the hook sh...

Страница 22: ...er stop Check The distance between the Cross head and the needle threader stop should be 1 5 mm Adjustment 1 Loosen screw A and move the needle threader stop until the correct measure is obtained 2 Tighten the screw Settings 1 5 mm A ...

Страница 23: ...Loosen the two screws A on the back of the threader head B 2 Move the white needle thread head B so that the threader hook D does not touch the needle eys inside XS RU GRZQ 6HH ÀJ 3 Move the silver looking needle thread hook holder C so that the threader hook D does not touch the QHHGOH H HV LQVLGH VLGHZD V 6HH ÀJ 4 Tighten the screws NOTE Both settings are adjusted at the same time Settings B C A...

Страница 24: ... plate Check When the presser foot is in its highest lifting position it shall be approx 13 mm above the needle plate Adjustment 1 Set the presser bar in its highest lifting position by using the function button Presser foot up 2 Remove the Thread tension unit 3 Loosen screw C and turn the presser foot until it is parallel to the feed dog groove of the needle plate and its lifting height is approx...

Страница 25: ... then the function button presserfot down so the presser bar takes its pivot position 4 Go to the service program and Menu 1 and press key 0 5 To adjust the distance use Stitch width keys and The adjustments can be done between 10 and 10 The adjustment is automatically set when a key is touched and is saved when turning off on the machine 6 Check the distance between the lower side of presser foot...

Страница 26: ... mm 6 If it is feeding check so setting 19 Stitch length balance is in balance before any adjustment is done Adjustment 1 The adjustment can only be done with the feeding step motor unit removed from the machine 2 Remove all covers the base and the feeding step motor unit 3 Put the base with the power supply in front of the machine and connect it 4 Take the front cover and connected it Lay it on t...

Страница 27: ...nr 9 Fine adjustment 1 In service program menu 3 press key nr 9 2 Turn screw A with a shortened 4 mm Allen key until the machine sews mending stitch according to il lustration To adjust the mending stitch in the E direction turn the screw A to the right E To adjust the mending stitch in the F direction turn the screw A to the left F This adjustment may be done without removing the covers see ill A...

Страница 28: ...g of the bobbin case shall give a resistance of 12 20 g when pulling the thread slowly using normal polyester thread Adjustment 1 Turn screw A until the correct thread tension is obtained Use Needle plate 412 78 96 01 as a setting gauge NOTE HIRUH DQ DGMXVWPHQW LV PDGH UHPRYH DQ ORRVH SLHFHV RI WKUHDG RU ÁXII IURP WKH WKUHDG WHQVLRQ discs Settings A ...

Страница 29: ...th a just a small play between the realeser and the pin Adjustment 127 HIRUH DQ DGMXVWPHQW LV PDGH UHPRYH DQ ORRVH SLHFHV RI WKUHDG RU ÁXII IURP WKH LQVLGH RI WKH thread tension discs The Covers must be removed before this adjustment can be done 1 Set the tension index dial to 9 2 Lower the presserfoot use the function button presserfoot down 3 Turn the pin A use a Torx 10 screw driver until it ju...

Страница 30: ...thread Adjustment 1 Check so the setting 21 Thread tension Releaser is correctly set 2 Run the machine and turn the thread tension dial A until a correct take up is obtained 3 Hold the black thread tension house B and turn the index dial A until No 5 is in front of the index on the front cover 127 HIRUH DQ DGMXVWPHQW LV PDGH UHPRYH DQ ORRVH SLHFHV RI WKUHDG RU ÁXII IURP WKH WKUHDG WHQVLRQ discs Se...

Страница 31: ...ing normal thread tension straight and zigzag stitching 3 For setting the thread tension for stitches with high tension set from factory You should use a setting gauge to set setting 3 at 170g There is no stitch in the machine that utilises 170g thread tension the stitch that utilises the highest threadtension is 2 11 If you dont have a setting gauge you can use the stitch 2 11 ZLWK PRQRÀO WKUHDG ...

Страница 32: ...ck has to be carried out at 2 5 mm straight stitching and using normal cotton fabrics and polyester thread Adjustment NOTE Before any adjustment is done please check that the lower and upper thread tension is cor rect 1 Remove the tension cover on the front cover 2 Turn the thread tension body B with a screw driver until a correct thread take up is obtained Settings B A B ...

Страница 33: ...er thread onto the bobbin the machine should stop when there is a min of 1 mm between the edge of the bobbin and the thread Adjustment 1 Loosen the Screw 2 Turn the disconnection until the correct amount of thread is obtained 3 Tighten the screw 4 Check by winding a bobbin Settings 1 mm ...

Страница 34: ...turned on The display will now show the sapphire service program There is 5 different service menus to switch between these 5 menus use the buttons indicated below Menu Maneuvering button Up Goes to Functions Menu 1 Step motor Menu Maneuvering button Left Goes to Functions Menu 2 Display and Sensor Menu Maneuvering button Right Goes to Functions Menu 3 Test patterns menu 1 Menu Maneuvering button ...

Страница 35: ...RP the calibration stop If correct the needle should move one small step to the right Key No 5 Cal Pos 1 step Is used to check the calibration stop setting 3UHVV NH 1R ÀUVW WKHQ 3UHVV NH DQG DW ODVW 3UHVV NH 1R 7KH VWHSPRWRU ZLOO WU WR WDNH RQH VWHS WR the calibration stop If correct it the needle should NOT move Key No 6 Cal feed Is used to check the movement of the feed step motor Feed step moto...

Страница 36: ...play while the hand wheel is turned around slowly Key No 4 Only 870 Check of the bobbin thread sensor check thread cut sensor and you can test each sequence of the thread cutter Key No 5 Check of the bobbin winding sensor If moving the bobbin winding between it s 2 different positions on or off a square is shown in the right side of the display should change between black and white the function is...

Страница 37: ... keys and the selected function is showed in the display Key No 1 The machine sews Straight stitch 2 5 mm Key No 2 The machine sews Straight stitch 4 mm Key No 3 The machine sews Straight stitch 6 mm Key No 4 The machine sews Zig zag 4x7 mm Key No 5 The machine sews Zig zag 2x4 mm Key No 6 The machine sews Zig zag 4x4 mm Key No 7 The machine sews Zig zag 12x7 mm Key No 8 The machine sews Overlock ...

Страница 38: ...any hours and minutes the machine has been sewed on SW ver Software version XXXX build version XXXXXXXX year month day Key No 1 Test pattern no 10 The machine sews B P R S Key No 2 Test pattern no 11 The machine sews a zig zag stitch 0 8x7 0 mm Key No 3 Test pattern no 12 Button hole With this it is possible to adjust the second column on a manual buttonhole The interval is 12 to 12 in steps of 1 ...

Страница 39: ...all be pressed on the keyboard one at a time KHQ D NH LV SUHVVHG DQG UHFRJQL HG E WKH HOHFWURQLFV WKH FRUUHVSRQGLQJ VTXDUH VKDOO EH ÀOOHG I DOO VTXDUHV LV ÀOOHG E SUHVVLQJ DOO WKH DGYLVHG NH V WKH NH ERDUG LV RN It is possible to break test anywhere without performing the total key board test just press button Setting menu one time and it will return service menu 1 LED test When going into service...

Страница 40: ... two Torx 20 screws C located under the handle on the back cover 3 Lay the machine down front facing up and remove the two Torx 20 screws that holds the back cover to the base plate LIW WKH PDFKLQH XS DJDLQ 87 GR QRW KROG LQ WKH KDQGOH KHQ UHPRYLQJ WKH EDFN FRYHU FDXWLRXVO SXOO WKH EDFN FRYHU RXW D ELW DW 7DNH D ÀUP JULS RQ WKH EDFN covers left side and remove the cover Covers E E A A C A A A A C ...

Страница 41: ...ar is in its lowest position so the thread take up lever and threading device is out of the way 7 Carefully lift up the cover at the thread tension and the bobbin winding unit 8 Pull away the front cover from the hand wheel and pull it straight out NOTE Pull carefully the front cover away in order not to damage the foil key board cables 9 Remove the LEFT cable of the display from the circuit board...

Страница 42: ...OM THE MACHI NE BEFORE REMOVING THE POWER SUPPLY Dismantling 1 Remove the 2 screws for the back cover 2 Remove the 2 screws for front cover 3 Remove the 2 screws A for the power supply 4 Remove the 3 screws B for the Base plate Mounting In reverse order Dismantling and mounting B A ...

Страница 43: ... right so that the mains switch part is exposed from the base plate and lift it upwards 4 Disconnect the cable to the circuit boards from the power supply Checking the powersupply Connect the transformer to mains Measure the voltage and resistance between the contact pins 1 2 should be approx 0 100 k Ohm Foot control connected 3 should be 6 5 7 5 V DC 4 should be approx 3 3 V DC 5 6 are ground 7 8...

Страница 44: ... it is important to handle circuit boards in a control led way Dismantling 1 Remove rear covers 2 Remove front cover 3 Disconnect the cables from the circuit board according to below 1 Left foil key board 2 Right foil key board 3 The sewing head 4 The step motor of the feeding unit 5 Bobbin winder 6 Power supply 7 Synchronizer card 8 Motor 4 Remove the 3 screws A holding the circuit board 5 Lift a...

Страница 45: ...ove rear covers 2 Remove front cover 3 Disconnect the cables from the circuit board according to below 1 Left foil key board 2 Right foil key board 3 The sewing head 4 The step motor of the feeding unit 5 Bobbin winder 6 Power supply 7 Synchronizer card 8 Motor 9 The step motor of the thread tension 10 Bobbin sensor 11 Cut sensor 12 The step motor of the threadcutter 4 Remove the 3 screws A holdin...

Страница 46: ... fastening points Only 870 4 Remove two torx 20 screws one from the front and one from the back A 5 Remove one torx 10 screw from the top B 6 Remove the tension unit Mounting 1 Mount one torx 10 screw from the top B 2 Mount two torx 20 one from the front and one from the back A 3 Mount the cable to PCboard and to its fastening points Only 870 4 Mount front cover and rear cover A A B ...

Страница 47: ...using E with the nut F and its spring G 12 Remove the two discs K M 13 Remove the tension shaft I and the center disc L by knocking the tension shaft out Mounting 1 Put the tension unit on e g bench with the right side facing the bench 2 Push the tension shaft thru its hole on the housing and mount the center disk and spring housing 3 Mount the two disks with the cut out on the tension shaft 4 Ali...

Страница 48: ...nsion shaft out 13 Remove the calibrationstop pin D Mounting 1 Put the tension unit on e g bench with the steppermotor facing the bench 2 Push the tension shaft G thru its hole on the housing and mount the center disk K and spring housing 3XVK WKH FDOLEUDWLRQVWRS SLQ LQ XQWLO LWV ÁXVK ZLWK WKH RXWVLGH RI WKH KRXVLQJ 4 Mount the two disks with the cut out on the tension shaft 5 Align the discs and ...

Страница 49: ...ringloaded cog wheel A by putting a needle through its hole 4 Remove the two torx 10 screws B 5 Remove the Stepmotor Mounting 1 Mount the stepmotor 2 Mount the two torx 10 screws B 3 Remove the needle from the springloaded cog wheel A 4 Mount the cable to the PC board and its fastening points 5 Mount the front cover and back cover 6 Check Set upper threadtension in service menu A B B ...

Страница 50: ...ut of the hole in the casting then lift the sewing head up and unhook the connecting rod F Mounting 7XUQ WKH KDQG ZKHHO VR WKH UP VKDIWV FRXQWHU ZHLJKW ÁDW VLGH LV RQ WKH WRS 2 Connect the Crossheads tab to the Arm shafts link hole F 3 Push in the tension release lever into its hole in the casting 4 Connect the stud E of the thread take up lever 5 Place sewing head in the machine and hold it while...

Страница 51: ...de of the se wing head when mounted 0RXQW WKH VWHS PRWRU PDNH VXUH WKH QHHGOH UHPDLQV LQ LWV FHQWUH SRVLWLRQ DJDLQVW WKH IRRW 5 Enter the screws A and tighten them 6 Connect the step motor cable to the sewing heads connecting board 7 Loosen the screw C on the Step motors cogwheel B 8 Connect the front cover to the PC Board 9 Enter the service program 10 Turn the screw C on the cogwheel B until the...

Страница 52: ...he step motor of the presser bar 1 Remove rear cover and front cover 2 Disconnect the step motor cable from the sewing heads connecting board 3 Remove the step motor by removing the 2 screws A Mounting 1 Connect the step motor cable to the sewing heads connecting board 2 Mount the step motor and tighten the screws A 3 Turn on the machine A A ...

Страница 53: ... Take the presser bar bushing and place it in the sewing head 2 Push back the bushing holder so it is on top of the bushing and tighten the Torx 10 screw B lightly Make sure the clamp is positioned correct on top of the bushing and in the bushing positioning on the lower side 3 Remove the 2 mm Allen key screw A of the presser bar holder 4 Push down the presser bar and make sure it goes smooth up a...

Страница 54: ...holder snap loose 8 Remove bushing and holder from the needle bar Mounting 1 Place the bushing holder on the bushing 2 Mount the bushing holder and the bushing on the needle bar with bushing on top 3 Mount the needle bar and push it in all the way 4 Use a small screw driver to snap in the bushing holder The bushing holder has 2 tabs E they should be positioned side to side when looking at the sewi...

Страница 55: ...the cross head Mounting 1 Make sure the rubber inserts are positioned at the bearing holders on the casting 2 Enter the arm shaft through the drive belt 3 Connect the sewing heads crossheads tab to the Arm shafts link hole 4 Connect the sewing heads the thread take up lever to the arm shafts stud 5 Place the drive belt on the arm shafts cog wheel 6 Place the arm shafts bearings into the bearing ho...

Страница 56: ...t the bobbin basket bobbin basket holder and the needle plate 4 Insert the new size 90 and system 130 705H needle in the machine 5 Put the A foot on the machine and centre the needle by hand 6 Remove the A Foot 7 Turn the hand wheel so that the needle eye is just above the needle plate 8 Set the hook cover in relation to the needle in feeding direction The needle must be in centre position looking...

Страница 57: ...Note On the right hand front should side should the ESD washer be positioned 4 Mount the bobbin basket bobbin basket holder and the needle plate 5 Insert the new size 90 needle in the machine 6 Put the A foot on the machine and centre the needle by the hand 7 Remove the A Foot 8 Turn the hand wheel so that the needle eye is just above the needle plate 9 Set the hook cover in relation to the needle...

Страница 58: ...traight up position and remove the knife holder by pulling it towards the back of the machine 4 Remove the knife by pulling it straight out from the holder 5 Mount the new knife by pushing it into the knife holder 6 Mount the knife holder in the hook cover and place it in position so the knife edge is facing towards the needle 7 Push stitch width to reset the cut 8 Mount needle plate A B ...

Страница 59: ... gain access and slide the dust cover and the hook into place NOTE On the dust covers back is a pin this must be placed in position before the hook shaft is positioned drop then the dustcover 4 Place the hook so it s the tip A pointings straight back wards 5 Check that the spring pushes the hook upwards Press the hook down and tighten screw B 6 Mount the hook cover Set thereafter 3 Play of the hoo...

Страница 60: ...mounting it 1 Take the step motor and enter the cable through the casting 7KH FRQFDYH VKDSHG JXLGH EORFN IROORZHU VKRXOG JR RQ WKH JXLGH EORFN DQG WKH JXLGH EORFNV ÁDW VLGH PXVW face the lower side of the machine 3 Before mounting the Feeding Step motor check or set 19 Pre setting the feed unit step motor 0RXQW WKH VWHS PRWRU DQG FRQQHFW WKH JXLGH EORFN DQG JXLGH IROORZHU ÀUVW WKHQ SXVK WKH PRWRU ...

Страница 61: ... and set hook and hook cover 5 Mount the presser foot holder and the presser foot 6 Set the feed unit side ways setting No 7 and tighten screws B The below have to be checked or set either during or after the parts are mounted 4 Setting of the hook in relation to the feeding eccentric 3 Play of the hook gear 5 Gap between the needle and the hook 6 The setting of the stitch plate hook cover in rela...

Страница 62: ...KDOI 3 Place the clamps on the bearings and tighten with the two Torx 20 screws 4 Push on the main belt on the lower shafts cog wheel 5 Mount the Synchronizer wheel it should be snapped on to the long sided pin on the lower shaft 6 Mount the Synchronizer card holder 7 Mount the Main PC board 8 Mount the feed dog unit 9 Mount the feed dog step motor unit Always check the setting 19 Pre setting the ...

Страница 63: ...shaft with its rubber ring is pushed against the ring and engaged when it is pushed back Dismantling 1 Remove rear covers and front cover 2 Remove the screw Mounting 1 The pin on the lower side of the bobbin winder should go into the castings hole 2 Mount the screw and tighten it Dismantling and mounting ...

Страница 64: ...ve the two torx 20 screws A holding the stepper motor 6 Take out the unit roll it off from the arm D Mounting 1 Mount the unit roll it on to the arm D 2 Mount the two torx 20 screws 3 Reattach the cables to their fastening points and to the PC board 4 Mount power supply 5 Mount front cover 6 Mount rear cover NOTE If you have adjusted replaced the threadcutting sensor E make sure that the arm D run...

Страница 65: ...ve cable from PCboard in front cover 4 Remove two torx 10 screws from the back A B 5 Remove the thread tension cover C Mounting 1 Mount the thread tension cover C 2 Fasten the two torx 10 screws from the back A B 3 Mount cable from PC board in front cover 4 Mount front cover 5 Mount rear cover C A B A B ...

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