SERVICE MANUAL - Superior Sewing Machine and Supply Corp.
Contents
1. ca 51 x4 gt 14 1 1 2 E Machine 246K50 Machine 246K51 Fig 33 Contact Point of Knives ADJUST THE TRIMMER ON MACHINE 246K50 See Fig 34 4 14 4 Fig 34 Adjusting Trimmer 3 2 SETTING HEIGHT OF STATIONARY KNIFE Loosen screw V4 Fig 34 Raise or lower stationary knife L4 Fig 34 in the knife holder S4 until the cutting edge of the knife is at the same level as top surface of throat plate U2 Then securely tighten the screw V4 WIDTH OF BIGHT The position of the stationary knife blade L4 Fig 34 in relation to the needle determines the width of bight For some types of work the width of bight must conform to the width of the chaining off finger Before setting stationary knife L4 for width of bight loosen screw Q4 Fig 34 and slide movable knife D4 up into its holder out of possible contact with stationary knife Tighten screw Q4 SETTING STATIONARY KNIFE FOR WIDTH OF BIGHT To change the width of bight loosen the screw T4 and move the stationary knife holder 4 toward the left or right as required Securely tighten the screw T4 Return movable knife D4 to its correct position setting it in relation to the stationary knife as described below SETTING MOVABLE KNIFE IN RELATION TO STATIONARY KNIFE POSITION Remove the clamp screw Q4 Fig 34 the chip ejector O4 and the knife clamp Z3 Loosen the screw N2 and move the knife hold2. NEEDLE lt 2 STOP 6 TIGHTEN NUT Fig 7 Needle Correctly Set in Needle Clamp PREPARATION FOR THREADING 3 RAISE THIS LEVER AND SWING PRESSER BAR 1 i TOWARD LEFT For convenience in threading On machines installed with bench stand raise bench stand flap Open front cover plate as instructed in Step 1 bn 1 OPEN THIS Fig 8 COVER Swing cloth plate toward left See Step 2 DN CLOTH PLATE Release presser bar as instructed in Step 3 TOWARD LEFT and swing presser bar toward left Fig 8 Preparation for Threading STITCH FORMATION The four thread dual chain stitch Stitch Type 7 507 is shown in Fig An exceptionally strong overedge stitch and a single line of reinforced stitching run parallel and close to one another on the upper side of the material The overedge stitch is formed with thread from the right needle and two looper threads Threads carried by left looper i and left needle form the reinforcing stitch which is interwoven with the overedge stitch on the underside of the fabric See pages 9 and 10 for instructions on threading the machine for this stitch S 5 5 J i mai wd MF M D 1 1 z 7342 0 1 8 1 L ae Fig 9 Stitch Formation Stitch Type 507 TO THREAD UNWINDER 17 RIGHT LOOPE
3. Stop Screw Lifter Adjusting Screw 1 1 Nut n Lever adjustable with 1772 809 and 50318 809 Lifter Lever Screw J Screw Lifting Lever with 853 830 1 Set Screw Screw Tension Spring 1 a Pressure Adjust ing Head hexagon 1 Spring Pressure Adjust ing Head Set Screw ith Holder Holder Housing and 7 809 442 830 1264 803 49204 50409 803 140180 809 164871 to 164878 165034 and two 50169 803 42 Part No SWING UP ATTACHMENT AND FITTINGS Continued Plate 164906 3079 164146 8079 164147 8079 50225 809 3079 164907 3079 164632 3079 164899 3079 164900 3079 164805 Description Presser Foot Body Chaining off Finger Clamping Plate tl 0 n Screw Presser Foot hinged complete Nos 50225 809 164146 164147 and 164906 Throat Plate 5 32 bight 3 32 bight 1 8 bight Guide 1 1 1 FITTINGS FOR 246K50 MACHINE FOR INTERMITTENT GATHERING FOR KNEE OR MANUAL CONTROL FOR NINON ORGANDY TAFFETA AND COTTON MATERIALS 164671 3051 164672 3051 164673 3051 164674 3051 164566 3051 164569 164649 3051 1425 809 3051 42436 3051 164573 3051 164582 E 50267 813 3051 164581 3051 190 809 3051 164567 3051 164570 3051 50004 809 3051 1550 809 3051 934 802 3051 164568 3051 164576 3051 1143 830 3051 1700 803 3051 For 109 inch space between needles Feed back Dog Section left n 1 right Feed back
4. 8 8 8 9 4 amp inside Front Cover CONTENTS Page 2 PARTS COMPLETE FOR 4 PARTS SPECIAL TO 246K51 B FITTINGS 5 10 ACCESSORIES 11 23 NUMERICAL LIST OF 25 Page 4 Needle Clamp Setting 21 22 Needle Curvature Gauge 8 5 12 Needle Guard 16 Needles 20 Needle Setting 6 Needles and Thread Needle Thread Controller Setting 12 Preparation for Threading 12 Pressure of Presser Foot 13 Right Looper Installing 13 Right Looper Setting 1 Running in Machine 11 Sharpening Knives 11 Speed 4 Stationary Knife 3 8 Stitch Formation I 3 8 10 Stitch Length Regulating 12 Stretching 13 17 Stripper 23 Suggestions for Efficient Operation 23 Take up Adjustments 20 Threading 5200 15 Threading Wire 164196 us 11 Thread Tensions Regulating 19 Tools 19 Trimmer Adjustments 1 Unwinder 3 4 12 Width of Bight 0 20 3 X Ray View of Machine Page 14 22 6 7 18 10 176 16 17 23 20 23 3 8 1 12 19 12 19 8 10 4 9 10 21 22 AW 21 22 DESCRIPTION Fig 2 X ray View of Class 246K Machine Lubricating System Shown in Solid Black Machines 246K50 and 246K
5. m p CSL gt BCD jT Gu EM e A DX LT Ue a PLI nh ax am A Ma ai pn ju Wb ni se ac ILLUSTRATIONS 8061 1 2 9979 QO OOLT amp B 265051 1799179 0041 58 799 1 8 3053 206 340395 i i LA ILLUSTRATIONS 3054 2 3 228479 1 921 cL8v91 LTC 118791 69 5 9189791 LIST 6070S 979 0 26 T 8179 1 988491 7 08 1071 0899791 918991 5505 1 1 3056 8 lt 6979T 179 cot 9 07 9 0 7 81 OO AA HH ILLUSTRATIONS 3059 1 3 164727 2770 140351 143284 143283 164729 3060 1 6 164042 140088 164728 PAR 164525 164043 190 39541 164590 165064 164744 140788 iv 165062 50611 164745 I ILLUSTRATIONS 3072 2 3 3073 2 164136 1640 TA 447 624 7 164151 164032 132584 5 164030 1443 164963 132583 164556 4028 164027 140050 1 64458 ILLUSTRATIONS 3074 1 2 164706 165004 1
6. Screw 164712 3056 1 Stop lower 1209 819 3056 1 1 H 1 Screw 1547 819 3056 1 Nut 164713 3056 1 T 1 1 upper 1209 819 3056 Screw 1547 819 3056 1 1 n 1 Nut 164717 3056 Machine Frame Cover back 164718 OC 164717 with 1637 810 and 140228 803 164719 5 T 164718 with 103 819 50101 819 1 1 50117 819 140185 809 164709 10 164713 164856 two each 1209 819 1547 819 and 140764 819 164723 3079 Presser Bar Lifting Lever 140228 3056 Stop Screw 1637 819 3056 1 1 1 1 Nut 164889 Conversion Kit Nos 164664 164665 164686 164687 164690 164694 164698 164705 164707 164719 164723 and four 140077 819 THE FOLLOWING FITTINGS AND RELATED PARTS ARE USED WITH BUT NOT INCLUDED IN CONVERSION KIT 164889 For 109 inch space between needles PRESSER FOOT WITH GATHERING BLADE ATTACHED 164896 Feed back Dog Section left 164616 right 1100 830 n on 3 u n Screw 164897 Feed back Dog complete Nos 1100 830 164616 and 164896 164898 Feed front Dog 164901 Presser Foot Body 164147 Clamping Plate 50225 809 n Screw 164725 n Gathering Plate 662 809 H Screw 4 Part 164902 164632 164899 164900 164805 164903 164616
7. 109 inch more looper stroke and higher knife stroke trimmer adjustable to cut 3 32 inch to 9 32 inch from right hand needle bight limit 3 32 inch to 9 32 inch two feed eccentrics 164915 bronze making 10 stitches to the inch are regularly supplied see page 11 maximum speed 5500 stitches to the minute INSTALLATION 6 Drill Hole 34 inch Diameter to Accommodate Chain for Presser Foot Lifting Lever Flat Head 1 inch Wood Screws BELT GUARD 8 Round Head 54 Inch Wood Screws 7 Flat Head 34 Inch Wood Screws Fig 3 Machine Base on Table Showing Position and Drill Sizes of Holes Required for Installation INSTALLATION OF MACHINE AND BASE ON TABLE Place machine and base on table top with belt groove of machine pulley in line with belt groove of driving pulley Spot position of hole behind machine base directly below chain slot on presser foot lifting lever Remove machine from base Draw outline of machine base in position on top of table Drill hole spotted earlier 3 4 inch in diameter to accommodate chain Using base and belt guard as template spot and drill six holes in table for wood screws as shown in Fig 3 Fasten machine base and belt guard to table with the six wood screws described in Fig 3 Set machine on rubber cushions at four corners of base FOOT LIFTER As the stand recommended for Class 246K Machines with foot lifter includes a suitable f
8. 151 x7 supplied with 246K50 Machine when fitted for 1 16 inch gauge Oiler Presser Bar Lifting Chain Spring under table Screw Driver Threader 6 Tin of Oil 1 pint Type H Tweezers Wrench socket EE ERU RR BELT GUARD ADJUSTABLE Supplied with machine Belt Guard n T Bracket back ii n H front 1 1 Screw Belt Guard adjustable complete Nos 164183 164199 164200 two each 51326 809 and wood screws 3 4 inch No 7 F H rr CHIP CHUTE Supplied only when specified on order at no extra charge 3049 Chip Chute with four wood screws 3 8 inch No 6 F H Blacked pL FOOT LIFTER PARTS The stands recommended for machines of Class 246K include a suitable treadle If machine is fitted on a stand or other equipment which does not include a foot lifter treadle orders should state that No 4885 is to be supplied and it will be furnished without extra charge 6439 4879 56864 56865 4881 4882 4883 4884 4885 3049 3049 3049 3049 3049 3049 3049 3049 Chain 36 to 45 with 56864 and 56865 NOTE When ordering 6439 give length required Chain Connecting Link Hook large it small Treadle 1 Shaft Spring 1 Stand Treadle complete Nos 4879 4881 to 4884 and two wood screws 1 No 16 F H 46 Part No 59324 56865 2763 12242 143283 143284 140361 830 356 803 143285 2767 356 803 6337 164729 356 803
9. 164700 and two 50388 830 FOR GATHERING Description Bar Hinge Pin Collar with 735 830 Set Screw back Bar with 164010 front Dog Controlling Lever 1 1 Ball Joint n 1 1 Position Plate back 1 1 Plate front n n 0 1 1 Screw n T Connection Bearing n n n 1 Hinge Screw Stud 1 1 Stud n Nut un J n Segment 164696 with front Dog Controlling Lever Segment 164697 with 1454 806 and 164701 to 164703 Feed Feed front Dog Controlling Lever Segment Bracket n 1 164699 with 1700 819 and 164695 front Dog Controlling Lever Segment Guide n n 1 tt 1 Adjusting Cam L it 1 1 Hn Cam Roller n u Guide Adjusting Cam Roller Screw n n 1 Segment Screw Eccentric Cover Bracket 164704 with 164023 Oil Wick Gathering Device Indicator Plate 1 n T Screw Lever and Indicator 164708 with 164691 to 164693 and two 190 819 1 1 1 Chain Screw Extension 11 1 H It 1 1 T Screw FITTINGS FOR 0 AND 246K51 MACHINES Continued Part No Plate Description 164710 3056 Gathering Device Lever and Indicator Guide Plate 140764 819 3056 1 Screw 140185 819 3056 Hinge Screw 164711 3056 1 1 1 Spring 50101 819 3056 1 1 1
10. 201018 803 201528 819 and 228692 one spool Cushion felt Hub Set Screw Rod 1 1 n Set Screw Set Screw Stand with two 1122 803 and three wood screws 12 F H 47 Part 161026 50311 803 151027 151028 151162 151029 161030 453 830 453 830 151163 THREAD UNWINDER No 151163 Continued Plate 3060 3060 3060 3060 3060 3060 3060 3060 3060 3060 Description Thread Guide lower Holder Set Screw Support with 50311 803 upper hollow upper solid Holder with four 1 1 Rod 1 1 Set Screw 1 Set Screw Thread Unwinder complete Nos 151023 to 151027 151029 151030 151162 225259 two 15102 453 830 8 and four 150203 lt Numerical List of Parts Part No Page No Part No Page No Part No Page No 103 40 1083 32 33 35 4883 46 145 35 1094 38 4884 46 157 30 35 1100 29 41 42 45 4885 46 171 32 33 35 1122 47 6337 47 176 39 1143 31 43 6439 46 187 33 37 1147 39 8908 46 190 31 37 40 43 1209 29 41 12242 47 197 31 1250 29 17022 29 37 198 30 1259 30 42 24210 44 206 34 1264 42 39541 31 217 42 1324 32 33 35 42436 43 227 30 1353 37 45057 32 33 240 44 1377 44 49204 42 330 34 1389 29 50004 43 332 37 1423 30 37 50060 36 356 47 1425 43 50073 31 442 42 1443 33 37 60101 41 447 30 31 34 1454 30 38 40 50117 40 448 35 1485 36 50133 36 452 35 1517 42 50169 36 42 45 453 48 1521 44 50225 35 3
11. 47 47 47 47 47 47 48 48 48 48 48 48 48 29 29 29 29 30 30 29 29 30 29 30 29 30 30 40 30 30 30 30 50 Part No 164032 164034 164035 164036 164042 164043 164046 164048 164049 164051 164052 002 164053 164056 164061 164062 164063 164066 164067 164068 164071 164074 164075 164077 164081 164082 164083 164086 164087 164091 164092 164093 164096 164097 164098 164099 164100 164101 164102 164103 30 31 31 31 31 31 31 32 39 38 32 32 33 32 33 32 32 33 33 33 32 33 33 35 Page No NUMERICAL LIST OF PARTS Part No Page No Part No Page No Part No Page No 29 164162 36 164231 35 164105 28 164163 37 164232 34 164106 29 164164 37 164234 44 164111 36 164165 37 164269 31 164112 35 164166 37 164285 37 164113 35 164167 37 164286 37 164114 35 164168 37 164293 32 33 164115 35 164169 37 164308 44 164119 35 164170 37 164351 36 164120 35 164171 37 164360 36 45 164121 35 164173 37 164366 29 164122 35 164174 37 164370 30 164123 35 164175 37 164373 31 164124 35 164176 37 164375 32 164125 35 164180 31 164397 33 164126 36 164181 31 164401 30 164127 36 164183 46 164418 37 164128 35 164184 47 164455 30 164131 36 104188 47 164456 30 164132 36 164189 47 164458 30 164133 36 164194 36 164515 34 164134 36 164196 46 164516 34 164135 36 164197 46 164520 30 164136 36 164198 46 164525 31 164137 36 164199 46 164555 37 164139 36 164200 46 164556 30 164141
12. Dog complete Nos 1100 830 164671 and 164672 1 front Dog Gathering Plate swing out pivoted Gathering Plate swing out pivoted complete Nos 164566 to 164568 Gathering Plate swing out pivoted Arm 1 n 1 1 Hinge Screw 1 1 1 1 Washer 1 1 1 Holder Gathering Plate swing out pivoted Arm Holder adjustable complete Nos 164573 164581 and two 190 809 Gathering Plate swing out pivoted Arm Holder Screw 2 T H H n Seat 1 1 Screw 1 H 1 Holder H M Bracket Screw 1 1 1 H Screw n Pin n 1 Pull 1 Stop Screw T 1 1 Nut FITTINGS FOR 0 MACHINE Continued Part No Plate Description 164650 Gathering Plate swing out pivoted with Arm and Holder complete Nos 1143 830 1425 809 1700 803 164569 164570 164576 164582 164649 two each 934 802 1550 809 50004 809 and three 42436 164655 3051 Gathering Plate swing out solid 164656 3051 Gathering Plate swing out solid with Arm and Holder complete Nos 1143 830 1425 809 1700 803 164576 164582 164649 164655 two each 1550 809 50004 809 and three 42436 NOTE No 164656 will be furnished as regular with these Fittings unless otherwise specified 164651 3051 Gathering Plate Presser Lever 140210 803 3051 n 1 Hinge Sc
13. only when specified on order for 246K50 Machine only Needle Guard Holder T Screw T Screw 2870 Holder 2870 Stop Pin 3076 Oil Agitator 3053 Cooler with two 164125 3053 ti Cover 3053 1 1 164121 with 164135 3053 it n Gasket 3053 1 Screw 3053 T Gasket 3053 1 Oil Pipe 3053 Tube with 138269 and 164128 lt 1 1 164126 with 51630 and 164127 3053 Coupling 3053 1 0 Lock Nut Sleeve 1 n n Wick 3053 u Screw long 2 3053 1 short 35 Part 164135 164607 164131 164132 164133 164132 164134 1485 809 164136 164137 51846 624 830 462 830 164884 164139 140228 803 1637 819 164640 164141 1700 809 164142 50060 810 140510 803 164351 51362 830 164143 164144 164626 164146 164147 50225 809 164360 50169 809 164627 164194 2102 164155 50133 803 1700 809 164156 164161 59537 164158 164162 2102 164155 50133 803 164156 164157 59537 164168 Plate 3053 3073 3053 3053 3053 3053 3053 3053 3073 2870 2870 2870 2870 2870 2870 24813 24813 24881 24881 24881 2870 2870 24881 24881 24881 2870 2870 3072 3072 3072 3072 3072 3072 3072 2870 24885 24885 24885 24885 24885 24885 24885 24885 24885 24885 24885 24885 24885 24885 PARTS FOR MACHINE No 246K50 Description Oil Cup for filling machine Defle
14. 002 171 830 140159 830 164067 1324 803 45057 164053 164739 164740 164068 1700 809 164219 904 830 164954 728 164955 164074 164075 914 803 165056 701 165057 164207 187 805 140396 805 164077 164229 140395 805 Plate 3075 3075 3075 3075 3075 3075 3075 3075 3075 3075 3075 3075 3075 3075 3076 3076 3076 3075 3075 3075 3075 3075 3075 3075 3075 3075 3075 24813 24813 24813 3053 3053 3053 3053 3053 3053 PARTS FOR MACHINE 246K50 1 8 n u n n 1 it tt 1700 809 132565 n Description Looper right hand Carrier Connection Hinge Stud Cap Screw Hin Adjusting Pin i Adjusting Pin Set Screw 3 it n ge Pin Oil Pad felt Set Screw Driving Lever with 1083 803 and two 164829 and 164952 Looper right hand Driving Lever Clamping Screw n Set Screw Shaft n 1 u u on n n u n n 1 n Cu n n 1 n n u u H un n Machine Frame Machine Frame complete Nos 16405 1 140596 830 164062 with 1443 809 6 164061 164068 164397 Bushing
15. 164091 164163 1443 809 164555 187 805 17022 164164 1423 809 164165 1607 809 164166 624 830 164167 701 164168 164206 164169 164170 164171 332 809 109784 830 164173 50318 818 164174 164175 164176 190 805 1443 809 164151 164963 1443 809 164632 164805 Plate 24885 24885 24885 24885 24885 24885 24886 24886 24881 24881 24881 24881 3075 24761 24761 3075 3075 24761 24761 24761 24761 24761 24761 24761 24761 24761 24761 24761 24761 24761 24761 24761 3076 3075 3075 3075 3073 3073 3073 3072 3072 PARTS FOR MACHINE 50 Description Tension light complete Nos 59537 164156 to 164158 and two 2102 Tension looper thread Thread Guide left 1 1 right 1 Thread Eyelet Guide double Screw n Spacing Block Tension double complete Nos 164628 two each 1700 809 and 164162 Thread Eyelet needle thread 1 Holder 1 1 164826 with 1607 809 and 164825 Nut Set Screw looper right hand Stripper and Take up with 164655 T n 1 Eyelet adjustable Eyelet adjustable Screw 1 1 1 Take up Guide Wire 11 Screw Washer n n Thread Eyelet movable 1 Screw T statio
16. 36 164201 46 164564 44 164142 36 164202 32 164566 43 164143 36 164203 46 164567 43 164144 36 164204 46 164568 43 164146 36 43 164205 29 164569 43 164147 36 41 43 45 164206 37 164570 43 164151 37 164207 33 164573 43 164155 36 164214 34 164576 43 164156 36 164215 002 32 164578 44 164157 36 164216 002 33 164580 44 164158 36 164217 35 164581 43 164160 37 164219 33 164582 43 164161 36 164229 33 164590 31 51 NUMERICAL LIST OF PARTS Part No Page No Part No Page No Part No Page No 164605 34 164655 44 164711 41 164606 34 164656 44 164712 41 164607 36 164660 31 164713 41 164608 34 164661 31 164717 41 164609 34 164664 40 164718 41 164613 29 164665 40 164719 41 164614 29 164671 43 164723 41 164615 29 164672 43 164725 41 164616 29 41 42 164673 43 164727 47 164617 29 164674 43 164728 31 164619 31 164675 44 164729 47 164620 34 164676 44 164739 32 98 164621 35 164682 45 164740 32 33 164622 35 45 164683 45 164744 31 164625 35 45 164684 35 164745 31 164626 36 45 164685 35 164746 31 164627 36 164686 40 164747 31 164628 37 164687 29 40 164748 31 164629 37 164690 40 164781 39 164630 37 164691 40 164782 39 164632 37 42 43 164692 40 164783 39 164633 45 164693 40 164784 39 164634 45 164694 40 164785 32 164635 45 164695 40 164786 32 164636 45 164696 40 164787 39 164637 45 164697 40 164801 39 164638 45 164698 40 164802 39 164639 45 164699 40 164805 37 42 43 164640 36 164700 40 164809 39 164641 45 164701 40 164810 89 164642 4
17. Bushing back 1 Cap Screw 1 ti 1 Washer fibre 1 1 front 1 ti Crank with 1083 803 it 1 Clamping Screw T Connection with two each 171 830 and 140159 830 T Shaft Crank 164051 with 164052 002 Connection Cap lower Screw 1 Connection Cap upper Screw 1 1 Key 0 u Screw 1 1 Washer 1 Thrust Bearing Oil Ring rubber T 1 Spacer Set Screw Stop Pin Thread Tube 1 Set Screw right hand It ti i Carrier with 50370 830 1 Connection T Guide Bar Nos n 1 1700 809 50420 830 64785 164786 and 164828 Looper right hand Carrier Connection Guide Bar Bracket with two 462 830 and 51369 803 Looper ri for ght hand Carrier Connection Guide tt 246K50 Machine only Bar Bracket Clamping Screw 1 1 1 Bar Bracket Screw left 1 1 1 Bar Bracket Screw right Guide Bar Set Screw Looper right hand Carrier Connection Guide Bar Oil Con trolling Screw Seat brass Connection Guide Bar Oil Plug Screw 1 1 1 n Oil Plug Screw Nut Guide Bar Oil Wick 1 Hinge Stud with 1019 830 Part No 1443 809 164397 1019 830 132565 165000 50370 830 164062 164953 1083 803 140596 830 164063 164049 140394 805 164293 164738 164066 164216 002 1083 803 164052
18. THE RIGHT LOOPER continued CHECKING RIGHT TO LEFT POSITION Hold gauge so that end marked HIGH on gauge just touches left side of right needle 65 shown at J6 in Fig 26 When right looper D3 is at its extreme left position it should just touch surface C5 on gauge as shown in Fig 26 At this setting bracket X2 Fig 27 should be ap proximately at midpoint of its extreme left to right positions on casting ADJUSTMENT OF RIGHT TO LEFT POSITION Loosen the two screws G3 and move bracket X2 as required to bring right looper D3 in correct contact with gauge surface C5 Securely tighten two screws G3 CHECKING HEIGHT Place gauge J2 firmly upon throat plate seat V2 with end marked LOW toward needle as shown in Fig 27 When right looper D3 is ot its extreme left posi tion its highest point should just touch undersur face J4 on gauge as shown ADJUSTMENT FOR HEIGHT When installing a right looper loosen nut Q3 Fig 27 and turn screw H3 anti clockwise to align the screwdriver slot in head of screw H3 with centre line of looper carrier S3 as shown in Fig 27 Then loosen screw F3 Place collar K3 on looper shank and insert right looper in looper holder G3 as shown in Fig 27 Adjust the height of the right looper in the following manner Loosen screw F3 and nut Q3 Fig 27 Raise or lower right looper D3 in carrier as required Press collar K3 firmly against top of carrier S3 Securely
19. from you until the needle clamp R2 reaches its highest position Swing the presser foot and cloth plate out to the left Remove the needle and the throat plate Turn the machine pulley over from you until the needle clamp R2 reaches its lowest position Slip the LOW end of the gauge J2 between the needle clamp and the throat plate seat v2 E Fig 22 Checking the N as shown in Fig 22 Clamp Height At this setting the needle clamp 2 should just touch the top surface Q2 on the LOW end of the gauge J2 ALTERNATE CHECK In the absence of a gauge the distance between bottom of needle clamp at its lowest position and top surface of throat plate seat should be set at 3925 inch when needle gauge is 109 inch E mes 406 inch when needle gauge is 1 16 inch ADJUSTMENT Remove the top frame cover and loosen the clamping screw T2 and the two screws P2 and Y Fig 23 Raise or lower the needle clamp R2 as required E i 27579 To secure the needle clamp in the correct posi tion first securely tighten the screw T2 then Fig 23 Adjusting the Needle tighten the two screws P2 and Y Clamp 7 wm T TO SET THE LEFT LOOPER IN RELATION TO THE NEEDLES Using Gauge 164883 See Figs 24 and 25 Fig 24 Left Looper Assembly 22 4 J2 3222 Fig 25 Setting PREPARATI
20. needles are at their lowest position The needle thread eyelet must be positioned and threaded as shown in Figs 11 and 14 After threading needle thread eyelet raise needles to highest position and pass each needle thread from front to rear through the eye of its respective needle When threading each needle double back the end of the thread and twist it making thread stiff enough to thread the needle eye easily TO THREAD THE MACHINE continued LOOPER THREADS Remove this Thread Before threading left looper turn machine Before Threading pulley over from you until eye of left looper is directly in line with threading tube underneath Fig 15 Right Looper throat plate d When threading right looper see Fig 15 be sure that there is no loose loop of thread on end of looper to cause thread breakage Pass each looper thread through its threading points as shown in Figs 12 and 16 Draw about two inches of each needle thread through its needle eye and draw two inches of each looper thread through its looper eye with which to start sewing Fig 16 Threading Looper Take up REGULATION THREAD TENSIONS Tension on needle threads should be just sufficient to set stitch correctly i See Fig 9 page 8 for correct stitch formation LESS LE TENSION For average sewing tension on ZA x lt 3 PI 5 looper threads sh
21. when making machine adjustments Splash lubricating system shown in Fig 2 auto matically and continuously oils principal bearings during operation Oil cooling reservoir in rear of machine Oil level indicator gauge in direct view of operator Oils recommended see inside front cover Machine pulley 164231 for 3 8 inch V belt also used for 5 16 inch round belt Machine pulley should always turn over away from operator when machine is in motion SPECIAL FEATURES Machine 246K50 adapted for light and medium weight fabrics needle gauges Distance between needles may be set at 109 7 64 inch or at 1 16 inch Unless otherwise ordered needles will be set 109 inch apart high looper stroke high feed lift and high knife stroke trimmer adjustable to cut 3 32 inch to 1 4 inch from right hand needle bight limit 3 32 inch to 7 32 inch two feed eccentrics 164915 bronze regu larly supplied When distance between needles is 109 7 64 inch two feed eccentrics making approximately 10 stitches to the inch are supplied When distance between needles is 1 16 inch two feed eccentrics making ap proximately 14 stitches to the inch are sup plied See page 11 maximum speed 5500 stitches to the minute Machine 246K51 Similar to Machine 246K50 except adapted for medium and medium heavy weight fabrics straight movable knife needle gauge Distance between needles is fixed at
22. 076 3076 3076 3076 3076 3076 3076 3076 3076 3076 24885 24885 24885 24885 PARTS FOR MACHINE 246 0 Description Machine Frame Cover back u n Screw long 2 1 short n 164516 701 with 1637 819 and 140228 803 Oil Lead 1 Screw 1 Nut Plug Bracket 1 1 Set Screw Screen Screw 3 u Splash Guard internal 1 1 Oil Pad 1 1 T Fastener Machine Frame Oil Splash Guard internal complete Nos 164605 164606 and 164608 Machine Frame Oil Splash Guard it 164 1 1 1 Screw 2 4 Tube with 164087 Set Screw Wick Rotary Shaft 164967 with 164097 164215 002 216 002 164217 two each 164093 and 164232 Machine Frame Rotary Shaft Ball Bearing Housing t 1 1 Screw 3 Sleeve two pieces 1 I Guide Bushing front 1 Oil Ring rubber Spacer T Set Screw intermediate Set Screw Counterbalance with 1036 830 Set Screw 1 it 1 11 Key Nut u Washer Oil Return and 11 Bearing Grease Retainer T Screw Stud Thrust Bearing Top Cover 330 809 1641 03 and two 164418 164101 728 with Gasket Oil Lead 1 1 1 Screw Part No 51369 809 164231 164071 701 140416 819 448 830 Catalogue 1265 164621 51768 803 175032 803 16462
23. 1100 830 164904 164905 164871 164872 164873 1517 809 442 830 1628 809 164874 50409 803 49204 1655 809 164875 1259 830 1264 803 164876 50318 809 1772 809 164886 140180 809 50169 803 165034 853 830 217 809 164877 164878 50292 803 164880 FITTINGS AND RELATED PARTS Continued Plate 3079 3079 3079 Description Presser Foot with Gathering Blade complete Nos 50225 809 164147 164725 164901 and two 662 809 Throat Plate 5 32 bight 1 it 1 Guide it 11 3 32 bight 1 8 bight SWING UP ATTACHMENT AND FITTINGS 3079 3079 3079 3079 3054 3054 3054 3054 3054 3054 3054 3054 3054 3054 3054 2870 3054 3054 3054 3054 3054 3054 3054 3054 3054 3054 3054 3054 3054 Feed back Dog Section left right Screw 1 1 Feed back Dog Feed front Dog 11 Gathering Plate swing up AAA Gathering Plate swing up Housing Support Nos 21 1517 809 1628 809 1655 809 complete Nos 1100 830 164616 and 164903 Holder Housing with 50292 803 1 1 Nut 1 Stop Screw Nut Support 1 Hinge Screw Support Hinge Screw Friction Washer Housing Support Hinge Screw Nut 1 Support Joint 1 Set Screw
24. 2 T TP 164160 se B 2 62 168161 34 2102 APRIL 1964 fake i See Ge Sei we Service lianual and Parts List for 24650 and 246 45 M cs Alterations Authority PECN 9 Page 33 50370 830 Alter to 109840 830 Page 33 and Numerical 649 54 726 Alter to 6954 0 07 649 5 Cancelled order 8 44 07 Page 54 1645151701 Alter 645 5 2 164516 701 Alter 164515 701 to 645 5 2 Numerical 50570 No Cancelled order 109840 645 5 Alter 645 2 Additions Page 55 81441 007 Machine Frame complete Nos 624 1145 140396 805 164077 164207 two 187 805 three 140395 805 and four 447 Page 39 64954 008 Machine Frame 81441 008 Machine Frame complete Nos 624 1145 40296 8052 164077 164207 two 87 805 three 40595 805 and four 447 Page 50 Pari Kos Page Nos 81 44 7 33 8 44 8 39 Page 53 649 54 8 59 m
25. 2 164684 164111 164112 164113 462 830 164114 164116 1083 803 164217 157 830 171 830 140596 830 165060 166061 165059 1083 806 50226 809 164685 164625 164119 164120 701 164121 164123 164122 145 809 164124 164125 164126 164736 164127 51630 138269 164128 51139 809 1324 809 PARTS FOR MACHINE No 00 Plate Description 24885 Machine Frame Top Cover Screw 3 3076 T Pulley round and V belt with two 448 830 3076 1 Cap 3076 n Screw 3076 T Set Screw Needles two size 18 151 x7 NOTE Needles Catalogue 1265 151 x7 are supplied unless machine is ordered for 1 16 gauge when Needles Catalogue 1266 size 9 151 x9 are fitted 2870 Needle Clamp 2870 n Clamping Nut 2870 1 Washer 2870 T Driving Shaft with 164625 164622 with 51768 803 164621 164685 and 175032 803 2870 Bushing 2870 1 Cap 2870 0 u it Oil Lead 2870 1 1 Hole Plug Screw 2870 1 1 Crank with 1083 803 and two 140596 830 2870 1 1 Ball 2870 n Clamping Screw 3076 Connection with 1641 15 two each 157 830 and 171 830 3076 1 1 1 Cap lower Screw 3076 1 1 upper Screw 2870 1 1 1 Set Screw Guard for 109 inch space between needles supplied with machine unless otherwise specified on order Needle Guard for 1 16 inch space between needles supplied
26. 356 803 2770 356 803 164727 164184 164188 164189 140418 805 657 805 228692 201528 82538 151023 225259 150203 858 830 151024 1122 803 201018 803 151025 KNEE LIFTER PARTS Will be supplied in place of Foot Lifter if specified on order Plate 3059 3059 3059 3059 3059 3059 3059 3059 3059 3059 3059 3059 3059 3059 3059 3059 3059 3049 3049 3049 3076 3076 3060 3060 3060 3060 3060 3060 3060 3060 3060 Description Chain 8 long with 56865 Hook small Rock Shaft Hanger with two wood screws 1 No 10 Knee Arm T T Hub with 3056 606 140351 830 Clamping Screw 1 1 Set Screw Rock Shaft Knee Arm complete Nos 2767 143283 and 143284 n 1 1 Plate with 356 803 1 1 T 1 5 1 Screw Lifting Bracket with two 356 803 Hook T 1 5 1 Screw Set Screw Stop Dog with 3866 803 1 1 n Set Screw Knee Lifter complete Nos 2763 6337 59324 143285 164729 two each 2770 and 12242 LE it Hn n tl MACHINE BASE Machine Base with two each wood screws 3 4 No 8 R H and 1 1 4 No 6 F H Machine Cushion large 2 1 small 2 T Screw Stud back front 1 THREAD UNWINDER 151163 FOR FOUR SPOOLS Supplied with machine Spool Pin 1 1 Nut 1 n Washer Spool Rest with 858 830 three each 82538 201528 819 and 228692 three spools Spool Rest with 82538
27. 5 164702 40 164811 39 164643 45 164703 40 164812 39 164648 29 164704 30 40 164813 39 164649 43 164705 30 40 164814 39 164650 44 164706 30 164815 39 164651 44 164707 40 164816 39 164652 44 164708 40 164817 39 164653 44 164709 40 164818 39 164654 44 164710 41 164819 44 52 NUMERICAL LIST OF PARTS Part No Page No Part No Page No Part No Page No 164823 31 164915 30 228692 47 164824 31 164950 30 931084 29 164825 37 164951 30 164826 37 164962 32 164827 37 164953 33 164828 32 164954 33 164829 32 164955 33 164831 46 164958 34 164856 40 164959 34 164861 29 164960 34 164863 29 164961 34 164864 29 164963 37 164865 29 164966 30 39 164871 42 164967 34 164872 42 164968 002 34 164873 42 164969 39 164874 42 164970 002 39 164875 42 165000 33 164876 42 165034 42 164877 42 165055 32 164878 42 165056 33 164880 42 165057 33 164883 46 165059 35 164884 36 165060 35 164885 31 165061 35 164886 42 165062 31 164889 41 165063 31 164896 41 165064 31 164897 41 165090 39 164898 41 165108 30 164899 42 43 165109 39 164900 42 43 165119 39 164901 41 165120 39 164902 42 165121 39 164903 42 168198 46 164904 42 175032 31 35 164905 42 201018 47 164906 43 201528 47 164907 43 225259 47 53 ILLUSTRATIONS 2870 1 2 164884 E TE 164144 164620 EE 164139 164131 2 164815 164143 164194 51846 164142 3049 4 6 4
28. 500 stitches to the minute 5000 stitches to the minute is recommended for long runs or while sewing long stitches Maximum efficient speed is dependent upon the nature of the operation the ability of the operator and the type of material being sewn It is advisable to operate these machines at more moderate speeds the first few days after which they can be run at top speed When the machine is in operation top of ma chine pulley must always turn over away from operator NEEDLES AND THREAD Needles are of curved blade When distance between needles is 109 ap proximately 7 64 inch use needles of Catalogue 14265 151 x 7 in Sizes 9 to 12 14 16 18 19 and 21 When distance between needles is 1 16 inch use needles of Catalogue 41266 151 x 9 in Sizes 9 11 12 14 16 18 19 21 and 22 Selection of needles can make a great differ ence in the ease and quality of the work It is im portant that each needle be just right for machine thread and work being done Choose your needle carefully The correct size will permit thread to pass freely through needle eye avoiding strain and breakage of thread Either right twist or left twist thread may be used If trouble occurs during sewing Inspect needle point A hook or burr may cause poor stitching or some materials may be cut when short stitches are used Check curvature of each needle as instructed below Unless needle has the correct curvature it may ca
29. 51 produce high speed reinforced overedging and simultaneous trimming on sweaters sport clothes bathing suits house dresses foundation garments and similar articles Available for continuous gathering and cuffing intermittent gathering ruffling seaming stretch ing inserting ornamental edging and welting these powerful but compact machines produce Stitch Type 507 See page 8 for description and illustration of this stitch GENERAL CHARACTERISTICS Curved needles Catalogue 7 1265 151 x 7 when needle gauge is 109 inch Catalogue 1266 151 x 9 when needle gauge is 1 16 inch Two needles two loopers Loopers independently driven permitting vari ations in their adjustment in relation to each other and to the needle to suit the work required Differential feed permits gathering stretching or uniform feed as desired Either left or right twist thread may be used in needles and in loopers Adjustable trimmer cuts cleanly operating in advance of needles Trimmings guided into chip chute to avoid interference with work and with mechanism Trimmer adjustable to cut 3 32 inch to 7 32 inch from right hand needle Bight limit 3 32 inch to 5 32 inch Presser foot can be swung toward left to facili tate threading or replacement of needle Tubular operation is accommodated by a small horn extension of the throat plate support Cloth plate can be swung to the left for con venience when stitching tubular pieces or
30. 6 41 43 45 460 32 1547 41 50267 43 462 32 36 1550 43 50292 42 620 31 1607 37 20311 48 624 29 30 36 37 1628 29 42 50318 37 42 629 30 1637 36 41 50370 33 657 47 1655 42 50379 32 662 41 1671 29 30 50388 40 665 29 1698 34 44 50409 42 735 40 1700 29 32 33 36 40 43 44 50420 32 742 31 1772 42 50571 34 853 32 42 2102 36 50611 31 896 37 2763 47 51023 34 904 33 2767 47 51139 35 914 32 33 34 2770 47 61326 46 934 43 3146 31 61332 34 1919 59 4879 46 51362 36 1938 94 4881 46 51369 32 34 35 1057 32 4882 46 51408 29 49 Part 51630 51649 51720 61768 51846 51939 51940 56864 56865 59324 59456 59537 81350 011 82538 85318 109784 120342 131056 132505 132583 132584 138209 139026 140050 140077 140088 140159 140180 140185 140210 140228 140239 140346 140351 140393 140394 140395 140396 140416 35 34 45 35 R 46 47 47 32 36 46 47 46 37 46 34 33 31 31 35 34 30 40 31 34 32 33 Page No 39 42 44 41 44 36 41 31 37 34 47 32 32 33 33 33 35 Part No 140418 140457 140509 140510 140596 140657 140658 140764 140788 143283 143284 143285 150203 151023 151024 151025 151026 151027 151028 151029 151030 151162 151163 164001 164002 164003 164004 164006 164007 164008 164009 164010 164017 164018 164023 164027 164028 164029 164030 47 44 29 36 NUMERICAL LIST OF PARTS Page No 32 33 35 44 44 44 41 31 47
31. 613 24878 Cloth Plate 164002 701 24878 n Extension 51 408 809 24878 1 1 Screw 1 700 809 24878 n 1 Nut 931084 24878 T Lock Washer 164205 24878 1 n Lock Spring 1700 809 24878 1 Nut 931084 24878 1 Lock Washer 1250 830 24878 1 1 Screw Stud 164104 24878 u Plunger 164105 24878 1 T n Spring 624 830 24878 T Set Screw 164106 24878 u Position Collar with two 624 830 624 830 24878 1 1 T Set Screw 164614 24878 Cloth Plate with Extension complete Nos 164002 701 164205 164613 two each 1700 809 51408 809 and 931084 164003 3074 Feed Bar Hinge Pin eccentric 1389 830 3074 1 Set Screw 164004 3074 1 Slide Block back 1628 803 3074 T Nut 17022 3074 1 1 1 u Washer 164366 3074 1 T n front 164687 3074 u back Bar with 164010 164017 3074 u u Connection 164008 3074 H Bearing 164009 3074 1 n Hinge Screw Stud 1671 803 3074 it 1 1 n Nut 164010 3074 T 1 1 1 1 1 Position Pin 164615 3072 n Dog Section left 164616 3072 T right 1100 830 3072 u Screw 164617 3072 Feed back Dog complete Nos 1100 830 164615 and 164616 29 Part Plate 1464 806 3072 164915 3074 164006 3074 164007 3074 164018 3074 164009 3074 1671 803 4 164010 3074 164370 165108 3072 1454 806 3072 164915
32. 64004 164023 2 8 629 164687 MY 164006 1671 164017 164018 164009 e 3075 1 2 pi lt lt 140394 1083 1700 50420 V 1 164785 164067 45057 164219 904 1324 140393 164660 Q 17022 164176 190 d 1243 164635 1100 164633 165109 6 164966 dd 164052 pu 13902 168963 5 140159 V 4 AX E 64 4 r 1 1 6 9 E ILLUSTRATIONS 3076 1 3 164093 140159 51369 1036 51352 160967 246K50 7 164232 164969 246K51 16405 2 2 om 140418 3077 1 2 164813 164682 E TE 3 eee e 0 lt p ei 2 X v rA O i Xx e 00 e 8 o o E D 9 0 S J 00 0 5699 66959T 006791 eS ILLUSTRATIONS 3080 1 2 164198 164204 164196 ud 3 0339 neot z 7 164197 24761 2 5 109764 164168 164165 1607 gt ILLUSTRATIONS 24813 1 3 0 9 1 N 19 AB ILLUSTRATIONS 24881 2 3 24885 1 3 16410
33. 8074 164620 8074 164704 8074 164705 157 803 4 629 810 4 164401 8074 227 809 8074 164023 3074 164706 8074 164966 8076 164455 24881 164456 24881 1259 830 2870 1423 809 24881 164566 3073 164027 8073 140050 803 3073 164028 3073 164458 3073 164029 3073 198 809 3073 164030 3073 164950 3073 164951 164032 3073 447 830 3 624 830 3073 PARTS FOR MACHINE 0 Description Feed back Dog Screw n Eccentric NOTE Feed back Eccentric No 164915 is furnished in 4 to 16 18 20 22 24 28 32 36 40 45 50 60 70 80 and 100 stitches to the inch Untess otherwise stated No 164915 10 stitches to the inch is supplied regularly Feed front Bar with 164010 n n Connection 1 n 4 1 Bearing n Hinge Screw Stud 1 n 1 1 1 Nut 1 Position Pin Feed back and front Bars complete Nos 164006 to 164008 164017 164018 164366 164687 two each 1671 803 164004 and 164009 Feed front Dog n n Screw n Eccentric NOTE Feed front Eccentric No 164915 is furnished in 4 to 16 18 20 22 24 28 32 36 40 45 50 60 70 80 and 100 stitches to the inch Unless otherwise stated No 164915 10 stitches to the inch is supplied regularly Feed Eccentric Cover T Bracket 164704 with 164023 it 1 1 Screw Hinge Screw Latch Spring 1 n n Oil Wick Cover
34. A4 open the front cover plate and loosen the screw NS Fig 30 Raise or lower the right take up A4 as required Do not permit take up A4 to interfere with other moving parts nor to hit cover M2 Then securely tighten the screw N5 and close the cover plate M2 SETTING LOOPER THREAD STRIPPER The looper thread stripper B4 should normally be at the midpoint of the top and bottom extremes of its adjustment as shown in Fig 30 To set the looper thread stripper open the front cover plate M2 and loosen the screw H4 Raise or lower the stripper B4 as required Then se curely tighten the screw H4 and close the cover plate M2 Make certain that none of the above adjustments cause take up components to strike one another or the cover M2 TO REMOVE AND REPLACE THE KNIVES MACHINE 246K50 See Fig 31 REMOVING STATIONARY KNIFE L4 Loosen screw V4 Fig 34 page 21 and draw the knife L4 Fig 31 upward and out REPLACING STATIONARY KNIFE L4 Push knife L4 downward in knife holder 54 until cutting edge of knife L4 is flush with top surface of throat plate Securely tighten screw V4 REMOVING MOVABLE KNIFE D4 Remove clamp screw 34 Fig 32 the chip ejector O4 knife guard C4 and knife clamp Lift knife D4 from knife holder P4 REPLACING MOVABLE KNIFE D4 Slip knife in knife holder P4 replace knife clamp Z3 knife guard C4 the chip ejector OA and clamp screw Q4 Press movable knife D4 downward against sta
35. Fig 38 Sharpening the Movable Knife Fig 39 Sharpening the Stationary Knife SHARPENING STATIONARY KNIFE L4 Insert knife L4 Fig 39 in knife holder K5 on rear of lever arm so that its bevel M5 is parallel with grinding face G5 of grinding wheel Allow approximately 1 16 inch of the knife to extend beyond holder for grinding Then by turning knurled end P5 Fig 39 of lever arm screw lever arm into knife holder K5 securing the knife Sharpen the stationary knife as instructed above PARTS LIST FOR SINGER FOUR THREAD DUAL STITCH OVEREDGING MACHINES 246850 and 1 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 Code No INSTRUCTIONS FOR ORDERING In ordering from this List the part number MUST BE quoted exactly as shown in the first column A number always indicates the same part in whatever List it may appear or for whatever machine The code numbers where shown indicate the style of finish as follows Description Hardened Polished Nickel Plated and Buffed Polished Nickel Plated and Buffed Hardened only Polished only Soft not Polished Hardened and Polished Bright Rumbled and Nickel Plated Blued Nickel Plated only Hardened and Nickel Pl
36. Needle Guard Holder Body with two 50611 803 n 1 1 T Position Screw n 1 1 1 Screw Holder Sleeve 1 Screw Washer 1 Spring Stud Looper left hand 1 u Carrier with 460 830 50379 806 and 164202 1 Holder with 1083 803 140393 830 and 140596 830 n 164660 with 1324 803 59456 and 164046 Part No 1083 803 140596 830 140393 830 1324 803 460 830 59456 164048 164049 140394 805 164293 164737 164051 1083 803 164052 002 164215 002 171 830 140159 830 164067 1324 803 45057 164053 164739 164740 50379 806 164202 165055 853 830 164375 164056 164828 164829 164952 51369 803 914 803 1057 830 462 830 164785 50420 830 1700 809 164786 164061 Plate 3075 3075 3075 3075 3076 3075 3076 3075 3075 3075 3075 3075 3075 3076 3076 3076 3075 3075 3075 3075 3075 3075 3075 3075 3072 3072 3075 3075 3075 3075 3075 3075 3075 3075 3075 3075 3075 3075 3075 PARTS FOR MACHINE 246 0 Looper PN 1 Descriptian eft hand Carrier Holder Clamping Screw T T Set Screw left 1 1 1 right 1 Screw 1 1 Set Screw Washer Driving Shaft T M
37. ON Check the needle with needle as instructed on page 6 Set the needle in the machine as instructed on page 7 Remove throat plate and chip guard Loosen set screw D2 Fig 25 in left looper holder C3 Set left looper Z2 all the way down into its holder Securely tighten set screw D2 gauge 164588 15 CHECKING LEFT TO RIGHT POSITION Place gauge J2 on throat plate seat V2 as shown in Fig 25 Turn machine pulley over away from you until needle clamp R2 reaches its lowest position and then rises sufficiently to permit HIGH end of gauge J2 422 inch to pass between needle clamp R2 and throat plate seat as shown in Fig 25 When needle clamp R2 just contacts top surface U4 of gauge the tip of left looper Z2 should be between centre and left side of right needle SETTING LEFT TO RIGHT POSITION Loosen screw S2 Fig 24 To move left looper Z2 toward left loosen screw A3 and tighten B3 an equal amount as required To move left looper Z2 toward right loosen screw B3 and tighten screw A3 an equal amount as required Recheck setting When correct setting is ob tained securely tighten clamping screw 2 CHECKING FRONT TO REAR POSITION Turn machine pulley so that loopers move through one complete sewing cycle Observe looper movement The left looper must rub lightly on each needle as it passes behind the needles in iis movement toward the right SETTING FRONT TO REAR POSITION Turn machi
38. R A NEEDLE IMPORTANT THREAD THREAD Thread the right needle thread dash line com ed pletely first See Figs 10 to 14 4 Thread the left needle thread double line com pletely second See Figs 10 to 14 LEFT LOOPER LEFT THREAD NEEDLE THREAD Thread the right looper thread dotted line com pletely next See Figs 10 11 15 and 16 Thread the left looper thread Solid line com Fig 10 Unwinder 151163 Threaded pletely last See Figs 10 11 and 16 for Four Thread Dual Stitch Fig 11 Threading the Machine Four thread Dual Stitch Fig 12 Threading Wire 164196 Pass each thread through threading points as shown in Figs 11 12 14 and 16 Use threading wire 164196 shown in Fig 12 to pass threads through threading tubes at points indicated in Figs 11 14 and 16 Draw four or more inches of thread through eyelet in threading wire and pass threading wire through required threading tube THREADING NEEDLE THREADS Before passing needle threads through thread ing tubes turn machine pulley over away from RIGHT LOOPER RIGHT NEEDLE THREAD 0 8 THREAD GN N of NEEDLE THREAD LEFT LOOP THREAD TO THREAD THE MACHINE For Four Thread Dual Stitch Stitch Type 507 Fig 13 Threading Needle Thread Eyelet Dual USE THREADING WIRE 164196 HERE Fig 14 Threading the Needles operator until
39. ated Brass Plated Oxidized Phosphate Coating Formed on Surface of Iron or Steel Cadmium Plated Copper Plated Zinc Plated Silver Plated Polished and Nickel Plated Black Oxide for Iron and Steel Black Nickel Plated onty Chromium Plated Buffed and Chromium Plated Hardened Polished Buffed and Chromium Plated Hardened Bright Rumbled and Nickel Plated Hardened Bright Rumbled Nickel Plated Bright Rumbled and Chromium Plated Alumilite Plain Polished Nickel Plated and Chromium Plated Hardened Polished Nickel Plated and Chromium Plated Heat Treated for Toughness Heat Treated for Toughness and Polished Heat Treated for Toughness and Nickel Plated Heat Treated for Toughness and Black Oxide Heat Treated for Toughness Polished Nickel Plated Buffed and Chromium Plated Chrome Nickel Satin Finish Hardened and Chrome Nickel Satin Finish Hardened and Phosphate Coating Formed on Surface of Steel Hardened and Zinc Plated Hardened Polished and Nickel Plated Hardened Polished Copper and Nickel Plated and Buffed Copper and Nickel Plated and Polished Copper and Nickel Plated only Hardened Copper and Nickel Plated Copper and Brass Plated Copper Plated and Oxidized Hardened and Black Oxide for Iron and Steel Hardened Polished Nickel Plated Buffed and Chromium Plated Polished Nickel Plated Buffed and Chromium Plated Hardened and Chromium Plated Polished and Chromium Plated Brig
40. back Cap Screw u n Washer fibre front Crank with 1083 803 164066 with 164052 002 Clamping Screw Connection with two each 171 830 and 140159 830 Shaft Crank Connection Cap lower Screw Connection Cap upper Screw 1 Key T Screw HH Washer u Thrust Bearing Oil Ring rubber Spacer Locking Screw Stud Nut H tt Position Collar with 904 830 u Set Screw 140396 805 164077 164954 728 165057 and th ree 140395 805 Machine Frame Bottom Cover Gasket Screw 13 i 1 1 it 01 4 it 33 Bracket 165056 701 with Key 164207 and two 187 805 Screw Screw large n d oo Washer fibre 1 felt small Part No 164515 701 50571 809 914 809 164516 701 164081 140088 805 1698 809 164082 140346 830 164083 206 809 164608 164605 164606 164609 164620 809 51023 818 164086 447 830 164087 164967 164968 002 139026 164092 51369 803 164093 164232 164958 164959 164960 1036 830 164961 51332 803 164096 1036 830 164097 51649 803 131056 164098 164099 164100 164101 728 164214 164102 164103 330 809 Plate 24813 24813 24813 24813 3053 3053 3053 3053 3053 3053 3053 3053 3053 3053 3053 2870 2870 3053 3053 3053 3076 3076 3076 3076 3076 3076 3076 3076 3
41. complete for use with eccentrics of 4 stitches and above Nos 629 810 164401 164520 164705 and two 227 809 it Screw it Feed Lifting and Knife movable Eccentric Finger Guard for 246K50 Machine only Adaptor for 246K50 Machine only Screw for 246 K50 Machine only Screw for 246K50 Machine only n Knife movable serrated 2 1 in machine 1 sent as spare Clamp Screw Guard lower 1 1 upper Holder 1 Screw 1 1 Bearing Lever with 620 830 n 164950 with 132583 164035 164136 and 164963 1 Bearing n T Set Screw long 1 1 short 30 Part No 164373 728 50073 809 164885 164180 164181 164824 140239 830 164823 447 830 197 809 132583 132584 620 830 164034 164035 164036 164269 447 830 1143 830 164728 164744 140788 803 3146 165062 165063 165064 164590 190 805 39541 164745 50611 803 742 806 164042 140088 805 175032 164043 164525 164619 164046 164660 164661 Plate 2870 2870 24881 24881 24881 24881 24881 24881 24881 3073 3073 3073 3073 3073 3073 3073 3073 3073 3073 3073 3073 3073 3073 3073 3073 3073 3073 3073 3073 3073 3073 3073 3073 3075 3075 3075 PARTS FOR MACHINE No 246K50 Des
42. cription Knife movable Lever Cover and Presser Bar upright Housing with 1259 830 Presser Bar upright Housing Screw 2 Knife movable Lever Cover and Presser Bar upright Housing complete Nos 50060 810 164137 164139 164142 to 164144 164194 164373 728 and 164884 1 1 Knife movable Lever Guide 164180 164823 and 164827 Knife movable Lever Guide Holder Set Screw Holder with two 140239 830 164181 with 197 809 Thread Tube Set Screw 1 Screw Hinge Pin with 132584 1 Oil Wick 1 n Set Screw Stud 164034 with 164036 and 164269 n Oil Wick long n 1 n short 1 1 Set Screw back 1 n stationary wide 2 1 in machine 1 sent as spare Clamping Gib 1 Screw n H Washer 1 and Needle Guard Holder Knife stationary and Needle Guard Holder complete Nos 742 806 164745 and 165062 Knife stationary and Needle Guard Holder adjustable with Gib complete Nos 3146 140788 803 164744 and 165063 Knife stationary Holder Adjusting Stud adjustable Cap Screw 1 1 1 T Washer and
43. ctor Sight Gauge Background Disc 1 Gasket Window T Gasket Retainer Screw 2 Presser Bar Bracket Lifting Bracket with 462 830 624 830 and 51846 il Roiler and Stud Set Screw long 11 4 ti 1 short 1 Lever 1 1 Spring Stop Screw n Nut n swing out Lifting Screw Stud 1 1 n 1 Opening Lever n n Hinge Screw Pivot Screw 1 Locking Plate 1 1 1 Screw upright 1 Spring Foot Body Chaining off Finger Clamping Plate 1 Screw Guide for 246K50 Machine only Screw for 246K50 Machine only Presser Foot with Chain Cutter complete Nos 50169 809 50225 809 164146 164147 164360 and 164626 Pressure Regulating Thumb Screw Tension heavy Disc P MP Regulating Thumb Nut Screw Stud it Nut n I 50133 803 with 164155 Spring Bushing 1 Cover Tension heavy complete Nos 59537 164156 164158 164161 and two 2102 3 Tension tight Disc Pm it Regulating Thumb Nut Screw Stud 1 1 50133 803 with 164155 Spring Bushing n Cover 36 D Part 164160 164285 164286 164418 164628 1353 880 164629 164630 164825 164826 164827 1607 809 140239 830
44. een 764 Dusty Bisque 765 Chocolate Brown 766 Paint Colours Pale Red Emerald Green Green Metallic Light Beige Satin Matte Copper Tan Buff White Dark Fawn Plum Birch Brown Satin Black Gold Buff Blue Grey Medium Gold Sand j Khaki Flame Red Brite Green Sage Green Mist Green Ice Green Metallic Dark Beige Metallic Shell Pink Surf Green Colonial Rose Cream Oak Brown Deep Fawn Medium Green Light Green Metallic Light Gold Persimmon Mahogany Brown PARTS MARKED THUS ARE FURNISHED ONLY WHEN THE REPAIRS ARE MADE AT FACTORY Parts Complete for Machine No 0 FOR TRIMMING AND OVEREDGING BATHING SUITS HOUSE DRESSES AND SIMILAR ARTICLES TWO NEEDLES TWO LOOPERS MAKES FOUR THREAD DUAL STITCH TYPE 507 DISTANCE BETWEEN NEEDLES 18 FIXED AT 109 INCHES BIGHT ADJUSTABLE FROM 3 32 TO 7 32 MATERIAL UP 1 4 CAN BE STITCHED SPEED UP TO 5 500 S P M DEPENDING ON MATERIALS USED AND OPERATION PERFORMED Part No Plate Description 164864 24881 Chain Cutter Chain Retainer spring 665 809 24881 1 1 1 Screw 164865 24881 Chain Cutter with Chain Retainer complete Nos 164861 164863 164864 and two 665 809 164863 24881 Chain Cutter Holder 164861 24881 Knife 665 809 24881 it 1 Screw 164648 1 n only supplied when specified on order 164001 24878 Chip Guard 1209 809 24878 n Screw lower 140509 809 24878 1 it 1 upper 164
45. er assembly P4 toward the right or left as required to bring the cutting edge of the movable knife D4 at its lowest position slightly below the cutting edge of the stationary knife L4 as shown in Fig 34 Securely tighten the screw N2 Then replace the knife clamp 3 the knife guard C4 the chip ejector 04 and the clamp screw Q4 Then lightly press the mov able knife D4 downward against the stationary knife L4 and tighten the screw Q4 Loosen the screw T4 sufficiently to release the spring behind the stationary knife L4 permitting the stationary knife to make a tight spring contact with the movable knife D4 Then securely tighten the screw TA When knives require sharpening they may be removed and replaced as instructed on page 20 and sharpened as instructed on page 23 See instructions on page 22 for ANGULAR AD JUSTMENT of stationary knife TO ADJUST TRIMMER ON MACHINE 246K51 See Figs 35 to 37 SETTING HEIGHT OF STATIONARY KNIFE Loosen screw V4 Fig 35 Raise or lower knife L4 Fig 36 in knife holder 54 until cutting edge of knife is at same level as top surface of throat plate Then securely tighten clamping screw V4 WIDTH OF BIGHT The position of the stationary knife blade L4 Fig 36 in relation to the needle determines the width of bight SETTING STATIONARY KNIFE FOR WIDTH OF BIGHT To change the width of bight loosen the screw 4 Fig 35 and move the stationary knife
46. holder 4 Fig 36 toward the left or right as required Securely tighten the screw SETTING MOVABLE KNIFE IN RELATION TO STATIONARY KNIFE SETTING Loosen set screw N2 and set screw Q4 Fig 36 Raise or lower knife D4 while moving knife holder assembly P4 Fig 36 toward right or left as required to bring cutting edge of movable knife D4 at its lowest position in contact with and slightly below cutting edge X4 of stationary knife L4 as shown in Fig 36 Securely tighten screw Q4 While lightly pressing movable knife D4 toward left against stationary knife L4 Fig 36 tighten screw N2 When knives require sharpening they may be removed and replaced as instructed on page 20 See statement on page 23 concerning sharpen ing of knives 28300 Fig 35 Adjusting Width of Bight Fig 36 Setting Movable Knife in Relation to Stationary Knife Fig 37 Angular Adjustment ANGULAR ADJUSTMENT Machines To trim efficiently knives must contact each other at all points along cutting edges To adjust remove two screws Y4 Fig 35 and remove throat plate remove screw R4 and guide N4 Fig 35 NOTE On machines equipped with a needle guard this guard must also be removed When replacing needle guard set it so that needle will just brush guard as needle descends Remove feed dog C2 Fig 35 and loosen screws F5 55 and T5 Fig 37 Align lower knife L4 with upper knife D4 Fig 36 a
47. ht Rumbled Nickel Plated Bright Rumbled and Chromium Plated Continued over 27 New Code 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 Code No 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 INSTRUCTIONS FOR ORDERING Continued Description Nickel and Chromium Plated Copper and Chromium Plated Heat Treated for Toughness Nickel and Chromium Plated Heat Treated for Toughness Copper Plated and Oxidized Nickel Plated and Buffed only Alumilite dyed Black n Light Almond Green ti Dark Brown Russet Brown 1 8 Dark Green Medium Gold Nickel Satin Finish Hardened and Nickel Satin Finish Commercial Finish for Allen Type Screws Hard Coating on Aluminium Brass Plated and Clear Lacquered Paint Colours Code No Gloss Black 734 Dull Black 735 Brown 736 Grey Wrinkle 737 Beige Wrinkle 738 Black Wrinkle 739 Light Green 740 Dark Green 741 Dark Beige 742 Light Beige 743 Oyster White 744 745 Bright Cherry Red 746 Light Ivory 747 Peacock Blue 748 Bright Yellow 749 Slate Grey 750 Deep Brown 751 752 Dark Brown 753 Aluminium 754 Dark Grey 755 Light Grey Beige 756 Rosewood Brown 757 Light Bisque 758 Light Fawn 759 760 Grey Metallic 761 Russet Brown 762 Pale Green 763 Light Almond Gr
48. ics marked for the same stitch length To gather for front feed dog use feed eccen tric that is marked for longer stitch length than that used for rear feed dog Place eccentric marked for longer stitch length on shaft first To stretch the material while sewing for tront feed dog use feed eccentric that is marked for a shorter stitch length than that used for rear feed dog Place eccentric marked for shorter stitch length on shaft first Fig 20 Differential Feed SUGGESTIONS FOR EFFICIENT OPERATION Always turn machine pulley over away from you Never allow oil level in oil reservoir to drop below the FULL mark on the oil sight gauge Clean out any lint around the loopers and be tween the feed rows of the feed dog Frequently inspect area beneath presser bar hous ing and behind upper knife lever cover and remove accumulation of lint Always use lightest tensions and lightest pressure possible on material Don t forget to remove loop of thread from right looper before threading NOTE The instructions on the following pages are for Service Representatives To insure proper timing and avoid unnecessary repetition these instructions should be followed in the order given SET FEED DOGS AT THE CORRECT HEIGHT Using Gauge 164883 See Fig 21 K2 12 2 2 29230 5 G2 Fig 21 Setting the Feed Dog CHECKING HEIGHT OF FEED DOGS Swing the presser fo
49. ly a few drops of oil to oil grooves of feed bar connections Q5 see inset at bottom left of Fig 4 and to looper carrier connection guide bar at 02 Fig 5 behind upper knife carrier and chip guard Apply a drop of oil to presser bar at H5 Fig 4 Check oil level in reservoir as instructed in Fig 4 AFTER MACHINE IS INSTALLED AND BEFORE JSTARTING MACHINE Remove the chip guard from the front of the machine CHECK OIL LEVEL DAILY 4 BEFORE STARTING KEEP OIL N SIGHT GAUGE T FULL MARK Fig 5 Oil Flow Adjustment Check the oil flow on right hand looper carrier connection guide bar at O2 Fig 5 To adjust amount of oil flow on guide bar at O2 loosen lock nut D5 and turn adjusting screw L5 Fig 5 clockwise as far as possible Oil flow is now shut off completely Back off screw L5 turning screw anti clock wise 1 2 turn Check lubrication again To increase oil flow turn screw L5 anti clock wise a small amount and recheck lubrication If oil flow is too great turn screw L5 clockwise about 1 4 turn and recheck Never operate machine when oil flow is SHUT OFF at L5 When correct oil flow is obtained lock the nut D5 Fig 5 Replace the chip Remove belt and check freeness of machine by turning machine pulley by hand Replace belt Finally run in the machine for approximately 15 minutes at a moderate speed SPEED Maximum speed recommended for these ma chines is 5
50. nary Nut Tube 1 Set Screw Plate with 624 830 1 Cover n 1 164168 with 164169 and 164170 Hinge 1 Pin Spring Screw Screw 2 Thread Bushing 1 Screw i Thread lo per Plate complete Nos 1423 809 1443 809 1607 809 50318 818 164163 to 164167 164173 164206 two each 332 809 and 164171 Thread looper Take up 1 o Plate n Screw lower 0 upper needle Controller Lever 1 Screw 2 Throat Plate 1 1 Guide with 853 880 37 THESE MACHINES CAN ALSO BE FURNISHED WITH A GATHERING DEVICE AT AN ADDITIONAL CHARGE IF SPECIFIED ON ORDER Part No 164686 736 830 164687 164690 164691 164692 164693 190 819 164694 164664 164665 164695 1700 819 164696 164697 164698 164699 164700 164701 164702 164703 1454 806 50388 830 164704 164705 164023 164707 140077 819 164708 164856 103 819 164709 50117 830 Plate 3078 3078 3078 3078 3056 3056 3056 3056 3078 3078 3078 3078 3078 3078 3078 3078 3078 3078 3078 3078 3074 3074 3056 3056 3056 3056 3056 3056 Fittings FOR 246K50 AND 246K51 MACHINES Feed Feed
51. nd securely tighten screw F5 Fig 37 Tighten screws 5 and T5 Fig 37 SHARPEN TRIMMER KNIVES ON MACHINES 246K50 See Figs 38 and 39 Knives on Machine 246K51 should be returned to your SINGER Service Representative or to a SINGER factory when they require sharpening Knife Grinding Machine 701 9 belt driven is necessary for sharpening the knives used on Ma chine 2461650 The use of this grinder insures the correct bevel of the cutting edge of each knife If this Knife Grinder is not available knives that require a new edge should be returned to your SINGER Service Representative or to a SINGER factory for sharpening Do not attempt to sharpen these knives by hand SHARPENING MOVABLE KNIFE D4 Insert knife D4 Fig 38 in knife holder 85 Fig 38 on front of lever arm 5 Fig 38 Allow ap proximately 1 16 inch of the knife to extend be yond holder for grinding Then tighten thumb screw 24 Fig 38 Turn thumb nut E5 Fig 38 over from you until the knife D4 clears the grinding face 65 Fig 38 While moving lever arm 5 alternately back and forth turn thumb nut 5 required to bring the cutting edge of the knife lightly against the grind ing face of the wheel Continue the back and forth motion of the lever arm grinding off only enough to sharpen the cutting edge The movable knife is thus ground to a shear ing edge requiring no special setting in the ma chine to shear
52. ne pulley over away from you until point of looper 22 iust reaches the right needle Loosen screw E2 just enough to allow move ment of looper holder C3 Loosen set screw Move looper holder C3 toward rear of machine Turn set screw W2 inward until proper relation between needles and left looper is obtained Se curely tighten screw E2 Replace throat plate and chip guard lt lt ___ _ 2 SET THE RIGHT RELATION TO NEEDLES Using Gauge 164883 See Figs 26 and 27 Fig 26 Right Looper PREPARATION Check the curvature of the needles with needle gauge 164588 as in structed on page 6 Set the needles in the machine as instructed on page 7 Swing presser foot and cloth plate to the left Remove chip guard and looper thread plate complete CHECKING CLEARANCE BETWEEN LOOPER CAR RIER CONNECTION AND GUIDE BAR BRACKET Turn machine pulley until right looper D3 is at its extreme left position Check distance E3 between looper carrier con nection W3 and guide bar bracket X2 Fig 27 with 16 Fig 27 Adjustments gauge as shown at J5 Fig 27 Check this distance with HIGH and LOW ends of gauge CLEARANCE ADJUSTMENT Loosen clamping screw M3 and screws 3 and P3 Raise or lower right hand looper carrier con nection W3 as required Securely tighten clamping screw M3 Tighten screws N3 and P3 TO SET
53. number Screw feed eccentric extrac E J Fig 8 e threaded hole E of outer eccentric Pull gently with of stitches it makes as shown at F Figs 18 and 19 extractor J to remove Outer eccentric Inner eccen tric can then be removed Feed Eccentric 164915 bronze can be supplied to make 4 to 16 18 20 22 24 28 32 36 40 45 50 60 70 80 and 100 stitches to the inch in the same manner INSTALLING FEED ECCENTRICS When replacing each feed eccentric be sure Unless otherwise ordered feed eccentrics will that the stamped number is on outside be supplied according to chart shown above face of eccentric as shown at F in Fig 19 The keyway on the eccentric should fit over key at G on shaft M Line up front and rear feed bars REMOVING FEED ECCENTRICS and install eccentrics When both feed eccentrics cloth plate Q presser bar and feed ec are in position replace washer and hexagon head nut and screw hexa centric cover 5 Fig 19 out to the left gon head nut securely on the shaft M Swing FEED CONTROLS THE DIFFERENTIAL FEED consists of two feed dogs R and T Fig 20 independently actuated by two feed eccentrics at F Fig 20 The inner feed eccentric which is placed on the shaft first con trols the movement of the front feed dog T The outer feed eccentric at F which is placed on the shaft last controls the movement of the rear feed dog R To feed the work evenly use two feed eccen tr
54. oot lifter treadle foot lifter chain 6439 without the treadle will be sent with the machine If however the machine is fitted to a stand or other equipment which does not have a suitable treadle orders should state that foot lifter treadle 4885 is re quired and it will also be supplied without extra charge ACCESSORIES AND TOOLS Foot lifter Knee lifter supplied instead when specified on order Threading wire 164196 Tweezers 164204 Socket wrench 164197 for needle clamping nut Flat open end wrench 8908 for feed eccentric nut Screwdriver 85318 Wrench 164831 for right looper carrier guide bar oil plug screw nut Thread unwinder 151163 CAUTION All of the oil is drained from the machine before it is shipped from the factory DO NOT START THE MACHINE UNTIL IT HAS BEEN THOROUGHLY LUBRICATED AS INSTRUCTED ON PAGE 5 LUBRICATION POUR TYPE H OIL INTO OIL FILLER p N MACHINE Fig 4 Filling Oil Reservoir Use TYPE H OIL sold by Singer Sewing Machine Company Apply this oil to oil filler cup on top of machine pouring oil into reservoir until oil in the sight gauge is at FULL mark as indicated in Fig 4 Check oil sight gauge daily before starting machine and oil machine when necessary as in structed in Fig 4 above WHEN A MACHINE HAS BEEN IDLE FOR A CON SIDERABLE TIME OR AFTER A MAJOR INSTALLA TION OF PARTS Clean machine thoroughly Then app
55. or Producing 1 16 inch Space Between Needles Plate 3077 3077 3077 3077 3077 3077 3077 3077 3077 3077 3077 3077 3077 3077 3077 3077 3077 3077 Description Feed back Dog Section left 1 T right n 1 n 1 n Screw Feed back Dog complete Nos 1100 830 164633 and 164634 front Dog Needles 2 Size 11 151 x9 Needle Clamp Clamping Nut Driving Shaft with 56 164622 with 51720 803 164637 and 164639 1 Holder Stop Pin Presser Foot Body Chaining off Finger Clamping Plate Guide tt 1 n Screw Presser Foot complete Nos 50169 809 50225 809 164147 164360 164626 and 164641 n n Iu Screw Throat Plate 1 8 inch bight with 164683 for needle 151 x9 size 9 or under Throat Plate 1 8 inch bight for needle 151 X9 size 10 and above Throat Plate Thread F inger 45 Part 164203 164883 Catalogue 1265 Catalogue 1265 120342 164198 85318 164196 81350 011 164204 8908 164197 164831 164183 164199 164200 51326 809 164201 168198 Plate 3080 3080 3080 3080 3080 3080 3080 3080 3080 3080 3049 3049 3049 3049 3049 Accessories Description Feed Eccentric Extractor NOTE Only supplied when specified on order and at an extra charge Gauge NOTE Only supplied when specified on order and at an extra charge Needles twelve size 18 151 x7 Needles twelve size 9
56. orm 3 663 SERVICE MANUAL AND PARTS LIST FOR SINGER FOUR THREAD DUAL STITCH OVEREDGING MACHINES 246k50 and 246k51 Machine 246 5 CAUTION See that machine reservoir is filled with oil as instructed on page 5 before using machine THE SINGER COMPANY Copyright Under International Copyright Union A Trademark of THE SINGER COMPANY Printed in Great Britain DESCRIPTION SETTING UP LUBRICATION INFORMATION FOR OPERATOR ADJUSTMENTS PARTS LIST Accessories to Machines Bight Adjustment Cleaning Clearance between Looper Carrier Connection and Guide Bar Bracket Contact Point of Knives Curvature of Needle Blade Description of Oil Differential Feed Feed Controls Feed Dogs Setting Feed Dogs Tilting Feed Eccentric Extractor 164203 Feed Eccentrics Changing Feed Eccentrics Sizes Recommended Foot Lifter cu ER Sex acc Formation of Stitch Four Thread Dual Stitch Gathering Gauge 164883 Knife Grinder 701 9 Knife Sharpening Knives Removal and Replacement Left Looper Setting Length of Stitch Looper Thread Eyelet Setting Looper Thread Stripper Looper Thread Take up Adjustments Machine Pulley Movable Knife 5 9 9
57. ot out to the left and turn the machine pulley over from you until the feed dogs are at their highest position Place the gauge J2 over the front feed dog as shown in Fig 21 Gauge J2 must rest firmly upon the throat plate U2 At this setting front feed dog should just touch the bottom face F2 of the gauge Set rear feed dog at same height as front feed dog ADJUSTMENT Swing the cloth plate and the feed eccentric cover S out to the left Loosen the adjusting screw G2 and raise or lower the front feed dog C2 as required Then tighten screw G2 Loosen the adjusting screw H2 and raise or lower the rear feed dog B2 as required Then tighten screw H2 TO TILT THE FEED See Fig 21 When it is desired to tilt the feed first set it at the correct height as described above Loosen the hinge pin set screw K2 Fig 21 at the rear of the machine just 1 2 turn To tilt the feed up in the rear and down in the front of the needle slowly turn the hinge pin L2 over toward the rear of the machine until the de sired amount of tilt is obtained To tilt the feed down in the rear and up in the front of the needle slowly turn the hinge pin L2 over toward the front of the machine until the de sired amount of tilt is obtained Then tighten the screw K2 TO SET NEEDLE CLAMP AT THE CORRECT HEIGHT Using Gauge 164883 See Figs 22 and 23 CHECKING HEIGHT OF NEEDLE CLAMP Turn the machine pulley over
58. ould be very light SS oo Fea N Regulate thread tensions as in MORE TENSION structed in Fig 17 n X l 6 N EE CON p hs Ah E rt N PRESSURE OF PRESSER FOOT ES NUT S arm MATERIAL MORE TENSION ANN LESS TENSION Correct pressure of presser foot helps C Ves ian AZ 2 feed the work properly a 1 Always use lightest pressure pos sible So NZS Regulate the pressure of the presser ul foot on the material as instructed in Fig 17 Regulating Tension peru and Pressure of Presser Foot on Material Fig 17 CONTROL LENGTH OF STITCH J PA i Pa 4 1 5 j 1 qi i 3 pm b j x fi 7 7 5 Y b Let f F J Fig 18 Feed Eccentric 5 E 6 H Extractor 164203 and Eccentric 164915 bronze Fig 19 Changing Length of Stitch FEED ECCENTRIC CHART ECCENTRICS REGULARLY SUPPLIED Type of MACHINE 246K50 and 246K5 Feed with distance between needles fixed two Differential at 109 inch 246K50 only with distance between needles fixed at Differential 1 16 inch The length of stitch is determined by the feed eccentrics in use Using Wrench 8908 remove the hexagon head nut and washer from the shaft M Fig 19 e tri tract ig 18 int Each feed eccentric is marked with the
59. rew 1521 819 3051 1 n 1 1 1 Nut 1377 803 3051 1 1 1 Screw Stud eccentric 1698 819 30651 1 T n Nut 24210 3051 T 1 1 1 1 n Washer 164652 3051 1 Pressure Bracket 164234 3051 T n Adjusting Slide cylindrical 140657 810 3051 1 7 T Slide Screw 140457 803 3051 T 1 Locking Screw 164653 3051 T T Pressure Spring 51939 3051 T 1 Roller 51940 Gathering Plate Pressure Bracket Roller complete Nos 51939 with 140658 806 140658 806 3051 Gathering Plate Pressure Bracket Roller Screw Stud 1700 809 3051 1 T n Nut 164578 3051 1 1 it Support 164654 3051 Gathering Plate Pressure Bracket and Support complete Nos 1377 803 1521 819 1698 819 1700 809 24210 51940 140210 803 140457 803 140657 810 164234 164578 and 164651 to 164653 164308 Knife movable 164819 3051 Presser Bar swing out 164675 3051 Foot 164564 3051 1 Cord Guide spring 240 809 3051 1 1 1 1 Screw 164676 3051 Presser Foot complete Nos 240 809 1 64564 and 164675 140180 809 3051 1 n Screw 164580 3051 Tension Extension Plate 140596 830 3051 1 Screw 1700 809 3051 Screw Stud Nut Part No 164633 164634 1100 830 164635 164636 Catalogue 1266 164637 51720 803 164622 164638 164639 164625 164626 164641 164147 164360 50169 809 50225 809 164642 164682 164643 164683 FOR 246K50 MACHINE F
60. tighten screw F3 and nut Q3 CHECKING FRONT TO REAR POSITION Turn machine pulley over away from operator through one full revolution Observe position of right looper in relation to needles during this full movement Right looper D3 should pass behind left looper head and in front of needles brushing lightly on needles ADJUSTMENT OF FRONT TO REAR POSITION Loosen nut Q3 Fig 27 Turn right looper D3 in carrier S3 as required Securely tighten nut Q3 Recheck each setting and securely fasten all parts loosened earlier TO SET NEEDLE THREAD CONTROLLER See Figs 28 and 29 FUNCTION The needle thread controller J3 should aid in the setting of the stitch by taking up the slack of needle threads as the needles finish their down ward stroke thus setting the stitch as the needle thread loops are shed from the loopers When needles are at their highest position needle threads should run under clearance U3 of needle thread controller J3 shown in Figs 28 or in fork U3 of controller J3 shown in Fig 29 VARIATIONS The desired setting for needle thread controller may vary with changes in thread spe cial fittings or materials in use ADJUSTMENT Swing presser bar A2 Fig 29 and cloth plate Q2 out to the left Remove screws X5 and oil splash guard Z5 Turn machine pulley over away from operator until needle is at its highest position Loosen the two screws V3 and move needle thread controller J3 to
61. tionary knife L4 and 56 curely tighten clamp screw Q4 Adjust contact point of knives as instructed below MACHINE 246K51 See Fig 32 REMOVING STATIONARY KNIFE L4 Loosen screw V4 and draw knife L4 upward and out REPLACING STATIONARY KNIFE 14 Push knife L4 downward in knife holder S4 until cutting edge of knife L4 is flush with top surface of throat plate Securely tighten screw V4 REMOVING MOVABLE KNIFE D4 Remove clamping screw N2 and knife holder P4 Loosen screw Q4 and draw knife DA down and out of knife holder P4 REPLACING MOVABLE KNIFE D4 Slip knife D4 up into holder P4 and tighten screw 4 Fasten knife holder P4 to machine with clamping screw N2 as shown in Fig 32 Adjust contact point of knives as instructed below ALL MACHINES See Fig 33 SETTING KNIVES AT POINT OF CONTACT Turn the machine pulley over from you until the lowest point X4 Fig 33 of the cutting edge of the movable knife D4 just reaches the cutting edge of the stationary knife L4 as shown in Fig 33 Loosen the set screw 14 Figs 31 and 32 suffici ently to release the spring behind the stationary knife L4 permitting the stationary knife to make a tight spring contact with the movable knife D4 Then securely tighten the set screw 14 20 4 2 23 m P 1 4 11 4 am i Le U2 4 Fig 31 Trimmer on Machine 246K50 Q4 04 Ty a p 4
62. use skipping of stitches Orders for needles must specify the quantity required the Size number and the Catalogue number For example 100 Size 9 Catalogue 1265 151 x 7 The best stitching results will be obtained when using needles sold by Singer Sewing Machine Company CURVATURE OF NEEDLE BLADE Gauge 164588 for Needles of Sizes 9 to 16 only Before making any stitching adjustments the curvature of each needle blade should be checked in the following manner Using gauge 164588 shown in Fig 6 insert shank of needle with its flat side up in the groove A Push the needle along the groove as far as it will go against stop B Tighten clamping screw C Swing the indicator D slowly to and fro along the curve of the needle blade observing the dis tance between the needle blade and the tip of the indicator The tip of the indicator should just make con tact at the needle eye and should clear needle blade at upper end of curve by approximately 005 to 006 inch Use feeler gauge Reject any needle that cannot pass this test Fig 6 Checking Needle Curvature SETTING THE NEEDLES l MOVE TO HIGHEST POINT Move needle clamp up to its highest position Insert needles as instructed in Steps 1 to 5 in 5 INSERT NEEDLES Fig 7 AGAINST STOP When needles are correctly inserted in needle clamp securely tighten needle clamping nut See Step 6 Fig 7 with Socket N
63. ward the front to tighten the stitch or toward the rear to loosen the stitch as required Then tighten the two screws V3 and recheck the stitch setting 18 Fig 28 Needle Thread Controller in Correct Relation to Needle Thread 29233 3 22 J3 Fig 29 Adjustments to Needle Thread Controller Figs 28 and 29 show the correct position of the needle threads as they pass the needle controller J3 To check this condition remove two screws L3 and presser bar housing G4 After making certain that the needle threads are in the correct position replace presser bar housing G4 and fasten with two screws L3 Replace splash guard Z5 with two screws X5 ADJUST THE LOOPER THREAD TAKE UP See Fig 30 Fig 30 Looper Thread Take up Adjustments ADJUSTING LOOPER THREAD TAKE UP LEFT X3 FOR MORE OR LESS THREAD Remove the chip guard W Fig 31 page 20 and open the front cover plate M2 Loosen the two screws T3 Fig 30 and raise or lower the right end of the left take up X3 as required Securely tighten the screws T3 and replace the chip guard SETTING LOOPER THREAD EYELET LEFT The looper thread eyelet F4 should be normally at the midpoint of the slot K4 as shown in Fig 30 To adjust the looper thread eyelet loosen the screw E4 and lower the eyelet F4 to the proper location Then securely tighten the screw E4 SETTING LOOPER THREAD TAKE UP RIGHT To set the right take up
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