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Service Manual

Stitch Length and
Buttonhole Control Assembly

AGO/03

Rev. n .

359109-000 AGO/03

Содержание 2700 Series

Страница 1: ...00 AGO 03 2700 2700 Service Manual Household Sewing Machine Series THE SINGER COMPANY 2003 SINGER SHANGHAI SEWING MACHINE CO LTD ALL RIGHTS RESERVED Registered Trademark THE SINGER COMPANY LTD Printed In China ...

Страница 2: ...2700 Revisions Records Revision Description Approval and date 01 AGO 03 Rev n o Service Manual 359109 000 AGO 03 ...

Страница 3: ...nsible for any parts requiring replacement due to natural wear or to the abuse or negligence of its use or in the event the machine is serviced by other than a trained and qualified service person or even if replaced parts do not meet applicable specifications Service Manual 02 AGO 03 Rev n o 359109 000 AGO 03 ...

Страница 4: ...mm 5 s p i Self threading take up lever Push button instant reverse One way needle insertion Direct pattern selection Drop feed system Only for models 2722 2724 2730 and 2732 Four step buttonholer Automatic needle threading Only for models 2730 and 2732 Bed length 380 mm 14 96 inches without cloth plate Bed width 185 mm 7 28 inches Bed height 83 mm 3 27 inches Clearance under free arm 25 4 mm 1 0 ...

Страница 5: ...trol assembly Arm top cover Face plate and lamp mounting bracket Needle threader assembly for model 2730 2732 Needle bar vibrating bracket assembly Presser bar assembly Cam controlled feed follower Needle position lever Cam controlled feed mechanism Disk stack shaft gear and bracket assembly Zigzag stitch width bracket assembly Disc follower quick out lever For models 2718 2724 2730 Disc follower ...

Страница 6: ...zag lever bight stop Needle bar safety bight stop left side Alignment of knobs with panel graphics Presser bar height and alignment Hook drive belt tension Hook drive belt retainer bracket Hook timing hook and needle synchronism Bobbin case position finger Bobbin case position plate Bobbin case clearance Needle Thread tension Bobbin winder Feed rock shaft end play Feed dog centralization Feed dog ...

Страница 7: ...Section 1 Parts Removal and Replacement Service Manual 06 AGO 03 Rev n o 359109 000 AGO 03 ...

Страница 8: ...B A C Service Manual Light Bulb Replacement Face Plate Cover 07 AGO 03 Rev n o 359109 000 AGO 03 ...

Страница 9: ... reverse order Be sure the presser foot is in the raised position Turn the machine off and remove plug from outlet 1 Remove face plate cover 2 Push lamp C up and turn it clockwise 3 The spring inside the socket will push the lamp down and out the socket 1 After inserting the lamp pins into the socket slots push the bulb lamp C up and then turn it gently counterclockwise Face Plate Cover Service Ma...

Страница 10: ...Service Manual C A B Arm Top Cover 09 AGO 03 Rev n o 359109 000 AGO 03 ...

Страница 11: ...r in the OFF position 2 Remove tree arm top cover srews A B and C 3 Remove the arm top cover by pulling it straight upwards 1 Replacement is the same as removal in reverse order Arm Top Cover Service Manual 10 AGO 03 Rev n o 359109 000 AGO 03 ...

Страница 12: ...Service Manual A B C Bed bottom Cover 11 AGO 03 Rev n o 359109 000 AGO 03 ...

Страница 13: ...nsion table 2 Remove the three screws A 3 Remove 8 mm hex nut B 3 Remove bed bottom cover C Replacement of this bed bottom cover is the same as described above but in a reverse order Bed bottom Cover Service Manual 12 AGO 03 Rev n o 359109 000 AGO 03 ...

Страница 14: ...Service Manual C A A B D Rear Cover 13 AGO 03 Rev n o 359109 000 AGO 03 ...

Страница 15: ...here are tongues in this cover gripping it to the front cover So first of all dislodge tongues D located on the needle plate area 6 Remove the cover by pulling it straigh upwards Replacement of this rear cover the same way as described above but in a reverse order Make sure the rear cover matches the front cover and mainly that the tongues located at the needle plate area are properly inserted Not...

Страница 16: ...Service Manual D E For 2718 2724 2730 For 2712 2722 2732 B B B B Front Cover 15 AGO 03 Rev n o 359109 000 AGO 03 C F G H A A ...

Страница 17: ...o screws A by turning them 3 times 4 Turn the machine down placing the front cover upwards 5 Loose the two screws C by turning them 2 times 6 Remove the cushion and screw D 7 Remove from the front cover the switch F pushing it straight outwards Then remove the switch frame G openning it throught the groove H Return the switch F into the machine again 8 Remove the front cover E by pulling it straig...

Страница 18: ...Service Manual A A C B D E F Needle Bar 17 AGO 03 Rev n o 359109 000 AGO 03 ...

Страница 19: ...ad guide and then remove the entire needle clamp body Remove also the needle bar gib C 3 Loose needle threader stop screw D Models 2730 and 2732 4 Loosen needle bar connecting stud screw E 5 Draw needle bar F up and out of the machine Replacement the needle bar the same way as described above but in a reverse order 2 Adjust needle bar height see pages 84 85 1 Needle Bar 18 AGO 03 Rev n o 359109 00...

Страница 20: ...D Service Manual C A E C B Face Plate and Lamp Mounting Bracket 19 AGO 03 Rev n o 359109 000 AGO 03 ...

Страница 21: ...rew B and remove the socket with the lamp 4 Remove the spring D for models 2730 2732 5 Remove the screws C and the face plate and lamp mounting bracket E Replacement of the face plate and lamp mounting bracket is in the same way as described above but in a reverse order Adjust the needle threader lever guide Note Face Plate and Lamp Mounting Bracket 20 AGO 03 Rev n o 359109 000 AGO 03 ...

Страница 22: ...C E G H Service Manual D I A F B C Needle Threader Assembly For Models 2730 2732 21 AGO 03 Rev n o 359109 000 AGO 03 ...

Страница 23: ...ns A and B back to get them removed 5 Remove rubber ring C springs D I the needle threader actuating support E and the shaft G Replace these parts the same way as described above but in a reverse order Adjust the height of the needle threader if necessary Replacement Note Needle Threader Assembly For Models 2730 2732 Service Manual 22 AGO 03 Rev n o 359109 000 AGO 03 ...

Страница 24: ...Service Manual D A B E F C Needle Bar Vibrating Bracket Assembly 23 AGO 03 Rev n o 359109 000 AGO 03 ...

Страница 25: ...eplace these parts the same way as described above but in a reverse order 2 Adjust the needle location in the needle plate slot and needle to hook relationship if necessary See pages 94 95 and 96 97 3 Adjust the hook and needle synchronism hook timing and needle bar height See pages 110 111 and 84 85 Replacement Needle Bar Vibrating Bracket Assembly Service Manual 24 AGO 03 Rev n o 359109 000 AGO ...

Страница 26: ...Service Manual D E G C H B F A Presser Bar Assembly 25 AGO 03 Rev n o 359109 000 AGO 03 ...

Страница 27: ...sser foot shank with presser foot B 3 Loose the screw D and remove the bracket E 4 Remove the retaining ring C 5 Loose the screw F and remove the presser bar bushing G and the presser bar H Replace these parts the same way as described above but in a reverse order 2 Adjust the presser bar height and alignment Replacement Presser Bar Assembly Service Manual 26 AGO 03 Rev n o 359109 000 AGO 03 ...

Страница 28: ...Service Manual B A C D E Take up Lever Assembly and Needle Bar Connecting Link 27 AGO 03 Rev n o 359109 000 AGO 03 ...

Страница 29: ...Replace these parts the same way as described above but in a reverse order Make sure to lean stud D against connecting link E in a way that no axial play can be noticed on connecting link Adjust needle location in the needle plate slot and needle to hook relationship Check hook timing and needle bar height and presser bar height and adjust if necessary Adjust presser bar alignment and height 2 See...

Страница 30: ...A B C D H H G B F I Service Manual Handwheel 29 AGO 03 Rev n o 359109 000 AGO 03 ...

Страница 31: ...hese parts the same way as described above but in a reverse order Make sure screw B is properly located in the hole of armshaft A 1 Remove handwheel bushing set screw B 2 Remove retaining ring H 3 Remove clutch declutch assembly G 4 Draw the pin I out and remove plate cover F 1 Replace plate F by inserting pin I on clutch declutch assembly G 2 Insert handwheel on clutch declutch assembly 3 Replace...

Страница 32: ...Service Manual For 2712 2722 2732 For 2718 2724 2730 For 2712 2722 2732 For 2718 2724 2730 B A B A B A B A C Cam Controlled Feed Follower Needle Position Lever 31 AGO 03 Rev n o 359109 000 AGO 03 ...

Страница 33: ...led feed follower assembly 2 Remove the retaining ring A 3 Remove screw B 4 Remove the needle position lever C 1 Replace these parts the same way as described above but in a reverse order 1 Remove the free arm extension plate and all the covers 2 Remove screw A 3 Remove the needle position lever B 1 Replace these parts the same way as described above but in a reverse order Needle Position Lever Ne...

Страница 34: ...Service Manual A B Cam Controlled Feed Mechanism 33 AGO 03 Rev n o 359109 000 AGO 03 ...

Страница 35: ...e covers and the cam controlled feed follower 2 Remove spring B and the two Philips screws A 3 Remove mechanism 1 Replace this set the same way as described above but in a reverse order Cam Controlled Feed Mechanism Service Manual 34 AGO 03 Rev n o 359109 000 AGO 03 ...

Страница 36: ...Service Manual For 2712 22 32 For 2718 24 30 A A B B Disc Stack Shaft Gear and Bracket Assembly 35 AGO 03 Rev n o 359109 000 AGO 03 ...

Страница 37: ...rder Removal Replacement 1 Remove the free arm extension table and all the covers 2 Loose the 3 screws A 3 Remove bracket B and the gear by pulling them up 1 Replace these parts the same way as described above but in a reverse order Disc Stack Shaft Gear and Bracket Assembly for Models 2712 2722 2732 Disc Stack Shaft Gear and Bracket Assembly for Models 2718 2724 2730 Service Manual 36 AGO 03 Rev ...

Страница 38: ...Service Manual C B A Zigzag Stitch Width Bracket Assembly 37 AGO 03 Rev n o 359109 000 AGO 03 ...

Страница 39: ...s 2 Remove screw B and disengage the lever C 3 Remove screw A 4 Remove the stitch width bracket by pulling it up 1 Replace these parts the same way as described above but in a reverse order Zigzag Stitch Width Bracket Assembly Service Manual 38 AGO 03 Rev n o 359109 000 AGO 03 ...

Страница 40: ...Service Manual For 2718 24 30 D B C A C A B Disc Follower Quick Out Lever Disc Follower 39 AGO 03 Rev n o 359109 000 AGO 03 ...

Страница 41: ...way as described above but in a reverse order 1 Remove the free arm extension table and all the covers 2 Move the stitch width lever to the left straight stitch 3 Remove retaining ring A and spring B 4 Pull the follower C up to remove it 1 Replace these parts the same way as described above but in a reverse order Disc Follower Disc Follower Quick Out Lever for Models 2718 2724 2730 Service Manual ...

Страница 42: ...H G C B A Service Manual F E D Arm Shaft and Horizontal Bevel Gear 41 AGO 03 Rev n o 359109 000 AGO 03 ...

Страница 43: ...rs collar E and washer D 7 Remove collar E and washer D 8 Remove arm shaft C washer G will remain on the arm shaft 1 Replace these parts the same way as described above but in a reverse order Refer to Bevel Gear Mesh and Arm Shaft end Play on pages 70 71 2 In order to maintain feed timing align the timing mark on vertical shaft bevel gear between the two timing marks on horizontal bevel gear Refer...

Страница 44: ...Service Manual For 2718 24 30 A D E B C Pattern Selector Assembly 43 AGO 03 Rev n o 359109 000 AGO 03 ...

Страница 45: ...ector dial bringing to sight the screw A an then remove this screw 3 Once again turn the pattern selector dial to bring to sight the screw B Remove this screw too 4 Remove the retaining ring D 5 Remove the pattern selector dial mechanism C and the slide bracket E 1 Replacement is the same as removal but in a reverse order Pattern Selector Assembly for Models 2718 2724 2730 44 AGO 03 Rev n o 359109...

Страница 46: ...Service Manual I F G H J E Q P O N M L K S R For 2712 22 32 Pattern Selector Assembly 45 AGO 03 Rev n o 359109 000 AGO 03 ...

Страница 47: ...lever to the left 6 Remove pattern selctor assembly mounting screw P 7 Remove pattern selection assembly L When removing the pattern selection assembly be careful not to lose positinoning pin S and spring R as the pin may pop out by decompression of spring R 1 Replacement is the same as removal in a reverse order Be sure spring R and positioning pin S are in place before replacing the pattern sele...

Страница 48: ...Service Manual A B L C J E H I N D K M Thread Tension Assembly 47 AGO 03 Rev n o 359109 000 AGO 03 ...

Страница 49: ...cator screw washer K the tension spring J the tension spring guide E the thread guide H the discs I the tension disc C the spring D and the spindle L 1 Replace these parts the same way as described above but in a reverse order taking into consideration the following The two tension discs I must be assembled with their convex surfaces facing the tension disc C For needle thread tension adjustment s...

Страница 50: ...G Service Manual B C D F A E H Motor and Motor Belt 49 AGO 03 Rev n o 359109 000 AGO 03 ...

Страница 51: ...and the belt C 4 Remove the en cket screws D with the nuts and washers 5 Pull up the light switch F removing it 6 Cut off the plastic loop E 7 Disconnect wire by pulling the bonding jumper G apart 8 Remove the screws H 9 Remove the motor with the switch and socket 1 Replace these parts the same way as described above but in a reverse order 2 Use a new plastic loop E to retain wires on place Remova...

Страница 52: ...E F I K J A C B L M N O P Service Manual Hook 51 AGO 03 Rev n o 359109 000 AGO 03 ...

Страница 53: ...ith finger pressure press up lightly on pulley O and tighten screw P Check hook L for end play There should be 0 00 mm 0 05 mm end play Check for free rotating 5 Replace retaining plate A with spring C lower leg turned down insert this leg into the slot of retaining plate pin With the flat portion of lock bushing B turned up insert and push it into the pin till reaching the pin groove 6 Replace po...

Страница 54: ...A C B J K L F Service Manual For models 2722 32 24 30 F G D Feed Lifting Lever Assembly 53 AGO 03 Rev n o 359109 000 AGO 03 ...

Страница 55: ...d washer L 6 Remove feed lifting lever assembly C 1 Replace these parts the same way as described above but in a reverse order 2 Position the eccentric stud F making sure spacer A is positioned with the hole offset against the feed lifting lever bushing 3 Adjust feed dog height related to needle plate surface see pages 122 123 4 Be sure spring B is properly located in the hole of the casting and i...

Страница 56: ...Service Manual For models 2712 18 A F C B F G D Feed Lifting Lever Assembly 55 AGO 03 Rev n o 359109 000 AGO 03 ...

Страница 57: ...nd the feed lifting lever assembly C 1 Replace these parts the same way as described above but in a reverse order 2 Position the eccentric stud F making sure spacer A is positioned with the hole offset against the feed lifting lever bushing 3 Adjust feed dog height related to needle plate surface see pages 122 123 4 Be sure spring B is properly located in the hole of the casting and inserted over ...

Страница 58: ...J H I K M N D E F Service Manual L B C Feed Rock Shaft Assembly 57 AGO 03 Rev n o 359109 000 AGO 03 ...

Страница 59: ...aft centers B and E together with washer C and D 2 Tighten shaft centers screws F and L 3 Replace feed lifting lever assembly N and then replace the feed dog see pages 120 121 4 Replace eccentric hinge screw I and hinge screw nut H Tighten nut H to finger tightness 5 Adjust feed dog centralization and feed rock shaft end play See pages 122 123 6 Adjust feed dog height See pages 122 123 7 Adjust fe...

Страница 60: ...C A B E Service Manual H I Feed Forked Connection 59 AGO 03 Rev n o 359109 000 AGO 03 ...

Страница 61: ...ition the top of the eccentric gear C at the back of the machine 4 Turn shaft E counterclockwise until U channel in stitch regulator B is in the vertical position and keep it in that position 5 Remove fork A by pulling it down and out the machine 1 Replace these parts the same way as described above but in a reverse order 2 Adjust feed dog throw see pages 124 125 Feed Forked Connection 60 AGO 03 R...

Страница 62: ...C B A A L D E Service Manual F F A D G ILLUSTRATION M Vertical Shaft Bevel Gear 61 AGO 03 Rev n o 359109 000 AGO 03 ...

Страница 63: ...ark G on the gear D straddles the marks F on the gear A 6 Lightly move bevel gear D to the left until it just touches vertical shaft gear A 7 Tighten bevel gear set screw E making sure it is correctly located in the V shaped groove in the horizontal arm shaft L 8 Rotate the horizontal arm shaft L slowly several times Observe the position of the two gears with relation to each other The top edges o...

Страница 64: ...Service Manual A B E F C D Vertical Shaft 63 AGO 03 Rev n o 359109 000 AGO 03 ...

Страница 65: ...sufficiently to remove it 3 Loosen the two feed lifting cam screws C and D sufficiently to remove the vertical shaft 4 Draw vertical shaft F up out of machine with feed cam E with the washer 1 Replace these parts the same way as described above but in a reverse order 2 When replacing feed lifting cam E find the screw D nearer to the groove in the cam hub on the flat of vertical shaft F 3 Refer to ...

Страница 66: ...G D D C A C E E F Service Manual Stitch Length and Buttonhole Control Assembly 65 AGO 03 Rev n o 359109 000 AGO 03 ...

Страница 67: ...er dial at maximum stitch length 2 Insert the assembly in the machine aligning the head to stud D with the large hole F in plate G If properly aligned the assembly should be seating flush against the machine casting 3 Slightly depress stud D toward the front of the machine and press firmly while rotating the assembly slightly counterclockwise until the heads of studs C D and E snap into the openin...

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