Parts book for Singer 29K71, 29K72 & 29K73
Contents
1. Needle and Thread Relationship Needle 13 Needle Thread 11 Needle Thread 5 Numerical List of Parts 43 44 5 5 9 5 5 Page Oiling the 4 Operation of 5 Parts List oes sooocos0000 17 42 Perfect Stitch 11 Preparation for 10 Presser Bar Height Setting 13 Presser Bar Lift 13 Pressure Material 13 Rack Box Removal and Inspection 15 Removing the Work 10 Shuttle Threading 7 8 Timing 16 Special Characteristics 3 99 E et e mane Start 10 Stitch 12 Stop Motion Hand Wheel 6 Tensions 11 Regulation for Needle Thread and Bobbin Thread 11 Thread Twist score ese 5 Thread Take up Lever Regulation and Adjustment 12 Threading Upper 9 10 Lower Bobbin 7 8 Timing the Shuttle 16 TO ALL WHOM IT MAY CONCERN The improper placing or renewal of the Trademark SINGER or any other of the Trademarks of The Singer Manufacturing Company all of which are duly Registered Trademarks on any machine that has been repaired r2. 26 36569 40 551351 34 3012 18 36570 40 140 30 32 4288 22 24 36571 40 152F 28 4449 18 36807 40 1791 28 7868 32 50616 40 42 193F 20 28 8371 36 38 51224W 22 24 194E 28 8554 26 56033 26 211D 26 8557 40 80548 20 88235C 18 8558 40 81858 26 237F 26 8568 20 81866 34 241D 30 8569 18 20 81868 18 291W 28 8573 5s 28 81869 22 24 3271 22 24 8574 20 81872 18 361 18 8575 20 81888 26 4040 32 8577 26 81941 18 413D 20 8582 40 81943 24 418 40 8586 22 81951 32 4187 22 24 8589 26 81952 32 434 34 8590 40 81965 36 SS469W 36 38 8597 22 24 81993 32 515J 20 8601 22 24 81994 32 55535 20 8603 30 82007 28 55569 34 8604 30 40 82008 22 24 55570 26 8610 30 82010 18 SS571AL 30 32 8611 30 82011 18 55572 18 8617 20 82030 26 55573 18 8618 20 82031 26 55575 18 8619
3. 20 82230 28 82159 34 82231 26 82160 34 82232 18 82161 34 82233 18 82162 34 82234 19 82163 34 82235 30 82164 26 82236 18 82165 26 82237 18 82166 26 82238 18 82167 28 82239 18 82171 30 32 82240 30 32 82172 30 82241 24 82173 30 32 82242 30 82174 30 82243 32 82175 30 32 82244 30 82176 30 32 8224 30 45 INDEX Page Accessories List 3 Adjustments 12 16 Bobbin 6 6 Bobbin Thread Tension 1l Bobbin 6 Description of Machines 3 Description Inside Of Cover Direction of 13 Feeding Foot Lift 13 2 Hand 6 Height Adjustment Feeding 13 Needle 12 Hints for perfect Operation 14 Information for Operator 5 16 Length of Stitch 12 Needles Class and Variety Ordering Setting etis u wawas a vice Sizes recommended
4. TO EXAMINE REMOVE AND RE ASSEMBLE THE PARTS FROM THE RACK BOX Remove machine from treadle stand or power bench after taking out the four screws located at the base of the machine The machine should then be tilted back upon its machine pulley end the underside facing the adjuster Parts can be examined or removed from the rack box after taking out the two screws V Fig 34 and removing the cover plate The following parts are then exposed as shown in Fig 35 long rack Y short rack X intermediate pinion Z shuttle driving pinion W needle plate locating pin and spring A2 all of which can be removed without disconnecting the rack box from the machine To take out the shuttle carrier remove the small set screw in the shuttle driving pinion W by inserting a small screwdriver through the groove at the side of the rack box as shown in Fig 35 The shuttle carrier can then be pressed through the pinion To remove the long rack Y insert screwdriver through hole as shown in Fig 36 and take out the screw X2 Before proceeding to withdraw the rack remove the pinion Z Fig 35 then grip the rack and draw it straight toward the pulley end of the machine The short rack X and shuttle driving pinion W can be removed with out difficulty When replacing any one or re assembling the whole of these parts care must be taken to see that the gears and racks are correctly engaged as shown in Fig 36 W S gt Y E 2 a fig 34 Removi
5. 82194 and 82232 29 71 Machine 18 82237 Shuttle Driving Lever Connecting Rod complete Nos 8569 8645 82186 82194 and 82236 29K72 Machine 82239 Shuttle Driving Lever Connecting Rod complete Nos 8569 8645 82186 82194 and 82238 29K73 Machine 19 82194 Connecting Rod End front 20 8645 Pin front 82232 Connecting Rod 29K71 Machine 21 82236 Connecting Rod 29K72 Machine 82238 Connecting Rod 29K73 Machine 22 8569 Pin back 23 82186 Connecting Rod End back 24 SS573C Eccentric Stud 12 l 19 SHAFT CAM WHEEL SHUTTLE DRIVING LEVER PULLEY WHEEL AND SHUTTLE DRIVING LEVER CONNECTING ROD ASSEMBLY 1 2 3 INCHES 19 20 21 22 23 24 Ref i Q 22 23 24 25 26 27 28 29 30 Part No 193F 8620 8574 1177C 82154 82153 82155 515J 648J 1560W 8619 668D 8617 8618 84113 8575 82058 82116 SS535W 413D 2102 2103 80548 1280 NN101J 82055 8569 NN96J 82056 82059 66F 8568 33892 82057 20 HEAD OF MACHINE AND TENSIONS COMPLETE Description Screw Thread Eyelet head of arm Friction Spring Clamping Screw Lifting Lever Shaft Lever with 1177C Lifting Lever Shaft Lifting Lever Shaft Adjusting Lever Clamping Screw Hinge Screw Tension Thumb Nut 2 Tension Spring Adjusting Stud top Cup release Disc 2 Washer leather Friction Spring Pin Head of Machine Thread Guide Pin side Head Revolving Bush Stop Thumb Screw
6. Adjusting Stud side Disc 2 Tension side Spring 29K71 29K73 Machines Tension side Spring 29K72 Machine Head Binding Screw 4 Slide Rod Lock Nut upper Foot Bar Revolving Joint Bearing Hinge Pin Lock Nut lower Slide Rod Lifter Hinge Screw Vibrating Presser Lifting Lever Shaft Adjusting Lever Clamping Screw Rivet Tension side Adjusting Stud 413D with 1560W Foot Bar Revolving Joint complete Nos NN96J NN101J 82055 and 82056 21 HEAD OF MACHINE AND TENSIONS COMPLETE 20 21 22 23 24 25 Part No NN105H 82219 4187 82220 82216 8601 1801 8586 327D 8670 8597 8695 82150 41D 51224W 82151 82152 SS 45E 82034 4288 82121 81869 11663 82008 82052 22 ARM SIDE COVERS SHUTTLE DRIVING AND LIFTING LEVERS MACHINE NO 29K71 Description Stud Nut Spring Spring Stud Needle Bar Driving Lever with 1801 and 82216 Spring Steady Pin Spool Pin Cam Roller and Stud Joint Pin Oil Cup Screw Oil Cup with 8597 and 8695 Spring Oil Pad cloth Vibrating Presser Lifting Lever for medium work Lifting Lever Screw Thumb Screw Lifting Lever for light work Lifting Lever for heavy work Hub Screw 3 Arm Side Cover front for use when Machine is fitted with Hand Wheel on end of shaft Arm Side Cover back Hand Wheel Hub complete Nos 11663 81869 82008 and 82052 Hand Wheel Shaft Gear Gear Pin Shaft Hub 23 ARM SIDE COVERS SHUTTLE DRIVING AND L
7. Senite Manual and Parts List 29K71 29K72 and 29 73 THE SINGER MANUFACTURING COMPANY USE SINGER OILS and LUBRICANTS They insure freedom from lubricating trouble and give longer life to sewing equipment The following are the correct lubricants for this machine TYPE B MANUFACTURING MACHINE OIL HEAVY GRADE When an oil is desired which will produce a minimum of stain on fabrics even after a long period of storage use TYPE D MANUFACTURING MACHINE OIL HEAVY GRADE OTHER SINGER LUBRICANTS TYPE E THREAD LUBRICANT For lubricating the needle thread of sewing machines for stitching fabrics or leather where a thread lubricant is required TYPE F MOTOR OIL For oil lubricated motors and plain bearings in power tables and transmitters NOTE All of the above oils are available in 1 quart 1 gallon and 5 gallon cans GEAR LUBRICANT This specially prepared grease is recommended for gear lubrication on manufacturing sewing machines BALL BEARING LUBRICANT This pure grease is specially designed for the lubrication of ball bearings and ball thrust bearings of motors and electric transmitters ball bearing hangers of power tables etc Furnished in I Ib and 4 Ib tins Form 20870 Printed in U S A 957 SERVICE MANUAL AND PARTS LIST FOR SINGER 29K71 29K72 and 29K73 UNIVERSAL UPPER FEED MACHINES SINGLE NEEDLE LOCK STITCH THE SINGER MANUFACTURING COMPANY
8. 20 82034 22 24 648 20 8620 20 82052 22 24 44 NUMERICAL LIST OF PARTS 6 7 art No Page No Part No Page No Part Page No E E 82053 28 82177 30 82246 32 82055 20 82178 30 82247 32 82056 20 82179 30 32 82552 32 40 82057 20 82180 30 32 82833 40 82058 20 82181 30 32 84113 20 82059 20 82184 18 120378 40 82063 30 32 82186 18 82073 18 82188 28 82083 28 82189 26 82086 36 38 82194 18 8208 36 82199 26 82088 38 82201 32 82089 38 82202 32 82090 38 82203 32 82113 42 82204 32 82116 20 82205 32 82121 22 24 82206 32 82122 18 82208 32 82123 228 82212 26 82129 28 82213 26 82130 28 82214 42 82131 28 82216 22 24 82149 18 82219 22 24 82150 22 24 82220 22 82151 22 24 82224 30 821 52 22 24 82225 82153 20 82226 30 82154 20 82227 32 82155
9. Copyright 1958 by The Singer Manufacturing Company A Trademark of THE SINGER MANUFACTURING COMPANY FOREWORD This book contains complete information covering operation adjustment and parts list for Machines 29K71 29K72 and 29K73 Descriptions and exploded views of all parts assemblies on pages 17 to 44 inclusive will be found helpful when ordering any part of the machine requiring renewal DESCRIPTION Machines 29K71 29K72 and 29K73 for stitching boots shoes and other tubular work in leather and fabrics have the following characteristics Single Needle Lock Stitch Stop Motion Hand Wheel releases hand wheel from stitching mechanism for bobbin winding Horizontal Oscillating Shuttle Eccentric Adjustment for Shuttle Timing Cylinder Bed Replaceable Steel Horn Universal Upper Feed for Stitching in any direction without turning the work Stitch Length 7 to 15 to the inch depending on material being stitched and operations performed Presser Foot rise during feeding action 1 4 inch Maximum clearance 3 8 inch Double End Needle Plate two sizes of needle holes at each end for various sizes of needles Adjustable Thread Take up Lever Two Speed Machine Pulley ACCESSORIES AVAILABLE UPON ORDER at additional charge Attachment for fitting Hand Wheel on front of machine Part No 82121 601405 or 601407 for foot power 601406 or 601408 for electric power Detachoble Work Table for flat stitc
10. Fig 7 Taking out the Shuttle TO WIND THE BOBBIN Disengage hand wheel from operating stitching mechanism by drawing out plunger F Fig 8 and turning it slightly to left or right Place spool of thread on the spool pin and pass end of thread through the center slot or hole in the bobbin Then press the bobbin with slot in the side of the bobbin facing to the left as far as it will go on bobbin winder spindle Loosen thumb screw D Fig 9 on bobbin winder and push it down until the rubber ring presses against the rim of the hand wheel then tighten screw Turn hand wheel over toward you as when sewing and simultaneously guide the thread with the finger as shown in Fig 9 Fig 8 NOTE If hand wheel and bobbin winder are fitted on front of machine the slot in the side of the bobbin must face to the outside The top of hand wheel must then turn over to the right clockwise as when sewing to insure properly wound bobbins When bobbin is sufficiently full remove it from the spindle Loosen thumb screw D Fig 9 on the winder and move screw upward in slot until the rubber ring is out of contact with the hand wheel then tighten thumb screw Fig 9 Winding the Bobbin Re engage the hand wheel with the stitching me chanism by turning plunger F Fig 8 slightly while simultaneously turning the hand wheel slowly until plunger enters the hole in the inner disc TO THREAD THE SHUTTLE FOR 29K71 AND 29K73 Hold the bob
11. to front and right to left between the tension discs 3 See Fig 20 4 Pass thread through wire eyelet 4 5 Lead thread up and from front to back through the hole 5 in the take up lever 6 Draw about 10 inches of thread through the hole in take up lever and insert the end into the slit in the end of the threading wire supplied with the machine Then pass end of threading wire down through hole 6 which runs through the center of the needle bar 7 Remove thread from threading wire then with draw threading wire Pass the thread from left to right through the eye of the needle 7 Draw about three inches of thread through the eye of the needle with which to start sewing Fig 20 Upper Threading TO THREAD NEEDLE FOR DARNING 1 Place the spool of threod spool pin so that thread will draw from rear side of spool 2 Raise the wire guide in the oil cup on top of the arm and pass thread under guide 1 then press guide back into position See Fig 19 3 Pass thread over the pin 2 near the tension discs in front of the arm and from right to left under and between the tension discs 3 Fig 21 4 Pass thread through wire eyelet 4 5 Pass thread up and from front to back through the hole 5 in the take up lever 6 Draw about 10 inches of thread through the hole in take up lever and insert the end into the slit in the end of the threading wire supplied with the machine Then pass end of threading wire
12. 56033 SS570K 82165 2975 82189 NN100K 82031 82213 SS133D 8656 82030 82212 81858 81888 237F SS 50 Description Check Lever Joint Pin Piston Joint 29K71 Machine Piston Joint 29K72 29K73 Machines Joint Pin Washer Screw 2 Head Revolving Bush Supporting Washer Check Lever Thread Take up Adjusting Screw with Indicator complete Nos NN99K NN100K SS570K 2975 56033 82164 82165 and 82189 Lock Nut Index Head Index Head Stop Pin Adjusting Screw Locating Plunger Spring Indicator Body Indicator Body Lock Nut Needle Bar complete Nos SS50F 8656 81858 82030 and two SS133D 29K71 29K73 Machines Needle Bar complete Nos SS50F 8656 81888 82212 and two 551330 29K72 Machine Spring Screw 2 Thread Tension Spring Needle Bar 29 71 29K73 Machines Needle Bar 29K72 Machine Needle Bar Clamp with 237F 29K71 29K73 Machines Needle Bar Clamp with 237F 29K72 Machine Needle Clamping Screw Clamp Screw 27 CHECK LEVER AND NEEDLE BAR COMPLETE Ref w Uu 10 11 12 13 14 15 16 17 18 Part NN88W 82130 82129 82023 8675 179E 82131 193F 82007 291W 1816 82053 8573 194E 82123 152F 82167 82230 82188 28 FOOT BAR AND FOOT BAR REVOLVING JOINT Description Adjusting Nut Spring Bar Vibrating Presser Spring heavy Vibrating Presser Spring light NOTE Spring No 82129 is supplied with these Machines unless oth
13. IFTING LEVERS MACHINE 29K71 6 7 3 1 y FIL A IO A MI D 24 ARM SIDE COVERS SHUTTLE DRIVING AND LIFTING LEVERS MACHINES NOS 29K72 AND 29 73 Ref Part No No Description 1 NN105H Stud Nut 2 82219 Spring 3 418J Spring Stud 4 82241 Needle Bar Driving Lever with 1801 and 82216 5 82216 Spring Steady Pin 6 8601 Spool Pin 7 1801 Cam Rolier and Stud 8 81943 Joint Pin 9 327D Oil Cup Screw 10 8670 Oil Cup with 8597 and 8695 11 8597 Spring 12 8695 Oil Pad cloth 13 82150 Vibrating Presser Lifting Lever for medium work 14 41D Lifting Lever Screw 15 51224W Thumb Screw 16 82151 Lifting Lever for light work 17 82152 Lifting Lever for heavy work 18 SS 45E Hub Screw 3 19 82034 Arm Side Cover front for use when Machine is fitted with Hand Wheel on end of shaft 20 4288 Arm Side Cover back 21 82121 Hand Wheel Hub complete Nos 11663 81869 82008 and 82052 22 81869 Hand Wheel Shaft Gear 23 11663 Gear Pin 24 82008 Shaft 25 82052 Hub 25 ARM SIDE COVERS SHUTTLE DRIVING AND LIFTING LEVERS MACHINE NOS 29K72 AND 29K73 SID o 9 IO i LAM 2 ID 14 7 Q gt x is 17 18 19 18 20 18 23 24 25 Ref JOUR NH 10 11 12 13 14 15 16 17 18 19 20 21 22 26 CHECK LEVER AND NEEDLE BAR COMPLETE Part No 8659 8554 182231 82199 8589 211D 8577 82166 NN99K 82164
14. and coarse needle holes Following Pinion Stud Gear Box Position Pin Releasing Lever Hinge Pin Releasing Lever Locating Plunger Needle Plate Hinge Pin Binding Screw Plunger Spring Following Pinion Gear Box Screw 2 Connecting Rod Hinge Screw Shuttle Driving Gear Box complete Nos SS571AL 82063 7 Dow 82171 82172 82173 82174 82175 82176 82177 82178 82179 82180 82181 82224 and two 1423J Shuttle Driving Gear Box 82226 with SS658 and 82240 Shuttle Driving Gear Box 82224 with 82179 and 82181 for Agents only Shuttle Driving Gear Box 82244 with 55258 and 82240 for Agents only NEEDLE PLATES GEAR BOX AND SHUTTLE COMPLETE MACHINES NOS 29K71 AND 29K73 3 s 19 lt E 8 QS 2 23 90 22 32 NEEDLE PLATES GEAR BOX AND SHUTTLE COMPLETE MACHINE NO 29K72 Ref Part No No Description 1 82240 Needle Plate Hinge Pin 2 82201 Needle Plate fine and medium needle holes 3 81952 Shuttle complete Nos SS132D SS133D 404D 7868 81951 81993 81994 and 82552 4 82552 Bobbin 5 SS133D Shuttle Bobbin Retaining Spring Screw 6 7868 Retaining Spring 7 81993 Shuttle Body 8 SS132D Tension Regulating Screw 9 81994 Tension Spring 10 81951 Shuttle Thread Pull off 11 404D Pull off Screw 12 82205 Shuttle Carrier 13 82225 Shuttle Driving Gear Box 14 82179 Pinion Bushing 15 82176 Rack short 16 SS571AL Pinion Screw 17 82206 Driving Pinion 18 82175 Rack long 19 82204 Pinion Cov
15. applied to all parts indicated in Figs 2 3 and 4 Apply a drop of oil to the stand at the centers upon which band wheel and treadle work Also to both ends of the pitman rod connecting the treadle with band wheel Run machine for a few minutes to work oil into bearings When the machine is in constant use it should be oiled daily Fig 3 Oiling Rear of Machine Use TYPE or TYPE D OIL sold by Singer Sew ing Machine Company See inside front cover of this book for description of these oils Fig 4 Oiling Shuttle Race To oil shuttle race raise needle bar to its highest point and lift feeding foot A Fig 5 by moving lifter B upward Press down lever C Fig 5 and swing needle plate to position shown in Fig 4 Apply a drop of oil to the face of shuttle race and to the hole shown by arrow in Fig 4 TO OPERATE THE MACHINE 1 Raise feeding foot A Fig 5 moving lifter B upward 2 Place both feet upon the treadle Turn top of hand wheel over toward you to start machine If hand wheel is fitted on front of machine turn top of hand wheel from left to right to start machine 4 Allow the feet to move freely with the motion of the treadle Continue this motion with an alternating pressure of heel and toe until a regular easy movement is acquired and the hand wheel is kept in continuous rotation by use of the feet alone 5 When familiar with the treadle movement and you are able to re star
16. away from you When the desired height of lift is obtained tighten the wing screw TO CHANGE DIRECTION OF THE FEED While stitching the work is moved along by the action of the feeding foot only The direction of the stitching can be changed as desired by turning the foot around by means of the two handles E Fig 32 NI ANE Fig 32 Changing Feed Direction TO CHANGE THE NEEDLE PLATE 1 Raise the needle bar to its highest position 2 Loosen screw Fig 33 and by lifting upward remove needle plate and hinge pin P 3 When replacing the needle plate place flat side of pin P toward screw Q 4 Tighten screw Q on flat side of pin P P 2 a Q Fig 33 Correct Position of Hinge Pin in Needie Plate 14 HINTS FOR PERFECT OPERATION Oil the machine regularly The top of hand wheel must always turn over toward the operator counterclockwise If located at side of machine the hand wheel must turn over from left toward right clockwise Never run the machine without material between the feeding foot and needle plate Do not run the machine when both shuttle and needle are threaded unless there is material under the feeding foot The Belt See that the belt is not too tight it should be just tight enough not to slip If too loose remove the hook at one end shorten the belt and rejoin Machine Working Heavily If the machine runs hard after standing idle for some time use a little kerosene o
17. bin between the thumb and forefinger of right hand the slot in the edge of the bobbin being at the bottom Allow two or three inches of thread to hang free Hold the shuttle in the left hand with the wide opening uppermost Let end of thread pass through shuttle opening then place bobbin into shuttle See Fig 10 Fig 10 Turn shuttle over while holding bobbin in it and draw the threod into the slot in the edge of the shuttle and under the end of the tension spring See Fig 11 26838 Fig 11 Pass the thread through delivery eye which is in the upper edge of the shuttle See Fig 12 26839 Fig 12 TO THREAD SHUTTLE FOR 29K72 19 E26842 Fig 13 Place bobbin into shuttle and push back the re taining spring which will hold the bobbin in the shuttle With the right hand draw the thread into the slot in the edge of the shuttle as far as possible See Fig 14 2 E26844 Fig 15 Hold the bobbin between thumb and forefinger of right hand with the thread leading from right to left Hold the shuttle in the left hand with its open end up and its retaining spring moved outward See Fig 13 626803 Fig 14 Then draw thread to the left up and to the right under the spring See Fig 15 Now insert end of thread up through the small hole in the edge of the shuttle and through the eye in top of the bobbin position post See Fig 16 Fig 16 TO REPLACE THE SHUTTLE A
18. down through hole 6 which runs through the center of the needle bar 7 Remove thread from threading wire then with draw threading wire Pass the thread from left to right through the eye of the needle 7 Draw about three inches of thread through the eye of the needle with which to start darning Fig 21 Upper Threading for Darning TO PREPARE FOR SEWING With the left hand hold the end of the needle thread leaving it slack from the hand to the needle Turn top of hand wheel over toward you until the needle moves down and up again to its highest point thus catching 10 PE fi Fig 22 Drawing up Bobbin Thread the bobbin thread draw up the needle thread and the bobbin thread will come up with it through the hole in the needle plate See Fig 22 Lay both threads back under the feeding foot NOTE Turn top of hand wheel over toward the right clockwise if hand wheel is fitted on front of machine TO START SEWING Place the material under the feeding foot lower the foot and start to sew turning the hand wheel over toward you Turn hand wheel to the right if located on front of machine CAUTION Do not try to help feeding of the work by pulling the material as this may deflect the needle and cause it to break The machine feeds the work easily without any assistance TO REMOVE THE WORK Let the needle bar rest at its highest point raise the feeding foot then draw the material backward about 3 inches a
19. ebuilt reconditioned or altered in any way whatsoever outside a SINGER factory or an authorized SINGER agency is forbidden THE IMPORTANCE OF USING SINGER PARTS AND NEEDLES IN SINGER MACHINES The successful operation of SINGER machines can only be assured if SINGER parts and needles are used Supplies are available at all SINGER Shops for the Manufacturing Trade and mail orders will receive prompt attention SINGER Needles should be used in SINGER Machines These Needles and their Containers are marked with the Company s Trademark SIMANCO Needles in Containers marked FOR SINGER MACHINES are NOT SINGER made needles gt
20. er Plate 20 1423J Plate Screw 2 21 82202 Needle Plate medium and coarse needle holes 22 82181 Following Pinion Stud 23 82208 Gear Box Position Pin 24 82063 Releasing Lever Hinge Pin 25 82173 Releasing Lever 26 82171 Locating Plunger 27 55658 Needle Plate Hinge Pin Binding Screw 28 82203 Plunger Spring 29 82180 Following Pinion 30 146J Gear Box Screw 2 31 89E Connecting Rod Hinge Screw 82227 Shuttle Driving Gear Box complete Nos SS571AL 82063 82171 82173 82175 82176 82179 82180 82181 82203 82204 82205 82206 82225 and two 14237 82243 Shuttle Driving Gear Box 82227 with 55658 and 82240 82246 Shuttle Driving Gear Box 82225 with 82179 and 82181 for Agents only 82247 Shuttle Driving Gear Box 82246 with 55658 and 82240 for Agents only 33 NEEDLE PLATES GEAR BOX AND SHUTTLE COMPLETE MACHINE 29K72 34 HAND WHEEL AND STOP MOTION COMPLETE Part No 82163 1519E 434C 82160 82162 82161 82159 NN98R 81866 SS135D SS569C 761C Description Hand Wheel and Stop Motion complete Nos NN98R SS135D SS569C 761C 1519E 81866 82159 82160 82161 and 82162 Nut Binding Screw 2 Hand Wheel Stop Motion Flanged Bushing with two 434C Spring Stop Motion Plunger Hand Wheel Plunger Thumb Nut Handle wood Spindle Retaining Screw Plunger Stop Screw 35 HAND WHEEL AND STOP MOTION COMPLETE 36 BOBBIN WINDER COMPLETE MACHINES NOS 29K71 AND 29K73 Ref Par
21. erwise specified on order Foot Bar Collar Screw Spring Bar Collar Feeding Foot Screw Feeding Foot NOTE Feeding Foot No 82007 is supplied with Machines Nos 29K71 and 29K73 unless otherwise specified on order Feeding Foot No 8666 is supplied with Machine No 29K72 unless otherwise specified on order See Accessories page for extra Feeding Feet Stitch Regulator Thumb Screw Roller and Stud Slide Bar with 1816 Revolving Bush Joint Screw 2 Revolving Bush Handle Handle Screw 2 Bell Crank Lever Gib Stitch Regulator 29 FOOT BAR AND FOOT BAR REVOLVING JOINT 1 2 INCHES Ref Q IN 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 NEEDLE PLATES GEAR BOX AND SHUTTLE COMPLETE Part No 82240 82235 8603 8604 8654 662F 8611 82177 8610 241D 82224 82179 82176 SS571AL 82178 82175 82174 1423J 82234 82181 11661 82063 82173 82171 SS658 82172 82180 146J 89E 82226 82242 82244 82245 MACHINES NOS 29K71 AND 29K73 Description Needle Plate Hinge Pin Needle Plate fine and medium needle holes Shuttle complete Nos 662F 8604 8611 and 8654 Bobbin Shuttle Body Tension Regulating Screw Tension Spring Shuttle Carrier with 241D and 8610 Spring Spring Screw Gear Box t Pinion Bushing Rack short Pinion Screw Driving Pinion Rack long Pinion Cover Plate Plate Screw 2 Needle Plate medium
22. f the thread which must pass freely through the eye of the needle Rough or uneven thread or thread which passes with difficulty through the eye of the needle will interfere with the successful use of the machine Orders for needles must specify the Quantity re quired the Size number also the Class and Variety numbers separated by an x The following is an example of an intelligible order 100 16 29 x Needles for cloth 100 No 16 29 x 4 Needles for leather The best stitching results will be obtained by using the needles sold by Singer Sewing Machine Company THREAD Left twist thread should be used in the needle Either right or left twist thread can be used for the bobbin To determine the twist hold the thread as shown Turn the thread over toward you between the thumb and forefinger of the right hand if left twist the strands will wind tighter If right twist the strands will unwind Fig 6 Determining Twist of Thread TO REMOVE THE BOBBIN Raise needle bar to its highest point and lift feeding foot A Fig 7 by moving lifter B Fig 5 upward Press down lever C Fig 7 and swing needle plate around as shown Turn hand wheel until point of shuttle is nearest operator then lift out shuttle with thumb and fore finger Turn shuttle over and bobbin will drop out NOTE For 29K72 machine move bobbin retaining spring D Fig 7 outward before taking out the bobbin po lt
23. fter some of the numbers indicate the style of finish only as follows AL Heat Treated for Toughness C Hardened only D Polished only E Soft Not polished Hardened and Polished Blued J Nickel Plated only Hardened and Nickel Plated R Phosphate Coating Formed on Surface of Iron or Steel W Polished and Nickel Plated These letters MUST BE USED when they appear in the list and AFTER the number as in the list Parts marked with an asterisk are furnished only when repairs are made at the factory 18 SHAFT CAM WHEEL SHUTTLE DRIVING LEVER PULLEY WHEEL AND SHUTTLE DRIVING LEVER CONNECTING ROD ASSEMBLY amt Ref Part No No Description 1 82122 Shuttle Driving Cam and Gear Nos 81872 and 82073 2 82010 Shaft 29K71 Machine 82011 Shaft 29K72 and 29K73 Machines 3 3012 Pin 4 81872 Gear 5 82073 Shuttle Driving Cam with SS235C 6 55235 Screw 8661 Needle Bar Cam and Pulley Wheel with 361C 29K71 Machine 7 81941 Needle Bar Cam and Pulley Wheel with 361C 29K72 and 29K73 Machines 8 82149 Feed Motion Cam Wheel with RR18 and 81868 9 11663 Cam Wheel Pin 10 RR18 Roller 11 4449 Shaft Bushing 12 81868 Roller Pin 13 1808 Roller and Stud 14 SS572C Bearing Screw 29K71 Machine SS575C Bearing Screw 29K72 29K73 Machines 15 82184 Shuttle Driving Lever with 1808 16 1520R Eccentric Stud Nut 17 361C Cam and Pulley Wheel Set Screw 82233 Shuttle Driving Lever Connecting Rod complete Nos 8569 8645 82186
24. fter threading the shuttle turn hand wheel until the upright part of the shuttle carrier is to the right Then with the point of the shuttle nearest you and pointing towards the right place it into the recess as shown in Fig 17 With needle bar at its highest point press down lever C 17 and swing back needle plate to its sewing position A Fig 17 Replacing Shuttle TO SET THE NEEDLE Raise needle bar to its highest point and loosen screw H Fig 18 Then insert shank of the needle up into the needle clamp as far as it will go with long groove of the needle to the left and its eye directly in line with the arm of the machine Tighten screw H Fig 18 Loosen screw G Fig 18 and move the clamp to right or left until the needle passes through the center hole in the needle plate then tighten screw G CAUTION There are two double end needle plates furnished with each machine Be certain needle is straight and corresponds to the correct needle hole size indicated on end of needle plate Fig 18 Setting the Needle TO THREAD NEEDLE sf Ng 19 Threading Needle 1 Place the spool of thread on the spool pin so that thread will draw from the rear side of spool See Fig 19 2 Raise the wire guide in the oil cup on top of the arm and pass thread under guide 1 then press guide back into position 3 Draw the thread around back of pin 2 which is near the tension discs on top of the arm and from back
25. he mark indicating desired number of stitches to the inch as shown by the arrow Then tighten the thumb screw Fig 29 Regulating Tension and Travel of Take up Lever Fig 30 Changing Stitch Length TO REGULATE PRESSURE ON THE MATERIAL The pressure on the material is regulated by knurled thumb nut O Fig 31 To increase the pressure tighten the thumb nut To reduce the pressure loosen the thumb nut Heavier pressure is required for leather work than for sewing cloth or cotton materials The pressure should be only heavy enough to enable the feed to move the work along evenly Fig 31 Reguloting Pressure on Moterial TO TURN CORNER Stop the machine with the needle in the work and turn top of hand wheel over toward you until the feeding foot rises Then turn the work as desired using the needle as a pivot NOTE If hand wheel is located on front of machine turn top of hand wheel over to the right TO REGULATE THE AUTOMATIC LIFT OF THE FEEDING FOOT While the machine is in operation the feeding foot rises after it has moved the work forward then the foot moves toward the needle and descends again upon the fabric It is advisable that the lift of the foot should be only sufficient to clear the thickest part of the work To adjust the lift roise the feeding foot by means of lifter B Fig 31 To increase the feeding foot lift loosen wing screw N and move the screw toward you To reduce the lift move the screw
26. hing operations Part No 83739 83740 or 83741 Electric Transmitter 5 9 Stand for mounting the machine SPECIAL FEATURES MACHINE 29K71 End of cylinder bed is 1 inch wide and 7 8 inch deep Space at right of needle 12 1 4 inches Diameters of belt grooves 2 7 8 inches and 4 7 8 inches MACHINE 29K72 End of cylinder bed is 1 5 32 inches wide and 1 1 16 inches deep Space at right of needle 17 1 2 inches Diameters of belt grooves 3 1 4 inches and 5 1 2 inches Large Bobbin MACHINE 29K73 End of cylinder bed is 1 inch wide and 7 8 inch deep Space at right of needle 17 1 2 inches Diameters of belt grooves 3 1 4 inches and 5 1 2 inches SPEED The maximum speed recommended for these ma chines is 500 stitches per minute depending on ma terial being stitched and operations performed For thick work patching mending and stitching elastics put the driving belt on the larger pulley of the machine and the smaller pulley of the stand For light work put the belt on smaller pulley of the machine and the larger pulley of the stand When in operation the hand wheel must always turn over toward the operator counter clockwise NOTE If fitted on front of machine hand wheel must always turn over toward the right clockwise TO OIL MACHINE I Fig 2 Oiling Front Side of Machine When machine is received from the factory it should be thoroughly cleaned and a drop of oil should be
27. n thread tension has been properly adjusted it is seldom necessary to change it because a correct stitch can be usually obtained by varying the needle thread tension Fig 27 Increasing Bobbin Thread Tension Fig 28 Decreasing Bobbin Thread Tension TO REGULATE THE TAKE UP LEVER WITH REGULATOR INDICATOR The spring tension on take up lever J Fig 29 is adjusted by thumb nut K The tension on this lever should be about the same as that applied to the upper thread by the tension discs When the stitch is set at the top of the needle bar stroke lever J should be held down far enough the tension of the thread so that the take up action will keep the thread taut until the needle enters the work When sewing light weight materials with fine thread more take up action may be secured by turn ing the thumb nut K so that it screws up to decrease the take up spring tension This should be done instead of tightening the thumb nut of the tension discs For heavier materials and thread the take up ten sion must be about the same as that applied to the upper thread by the tension discs The travel of take up lever is regulated by means of knurled L The indicator near nut L is marked with the figures 0 to 4 This indicator provides a useful guide to the operator in setting the take up movement most suitable for the material and thread being used For thin materials such as kid or box calf turn knurled nut L until
28. nd cut the threads close to the work Leave the ends of the threads under the feeding foot TENSIONS For perfect stitching the tension on needle and bobbin threads must be heavy enough to pull threads to center of material and make a firm stitch thus EE EE ENE Fig 23 Perfect Stitch If the tension on the needle thread is too tight or if that on the bobbin thread is too loose the needle thread will lie straight along the upper surface of the material thus Fig 24 Tight Needle Thread Tension If the tension on the bobbin thread is too tight or if that on the needle thread is too loose the bobbin thread will lie straight along the under side of the material thus Fig 25 Loose Needle Thread Tension NEEDLE THREAD TENSION The tension on the needle thread is regulated by the thumb nut near the tension discs See Fig 26 To increase the needle thread tension tighten thumb nut To decrease the needle thread tension loosen thumb nut NOTE Tension on needle thread can be tested only when the feeding foot is down MORE TENSION ss LESS TENSION Fig 26 Regulating Needle Thread Tension BOBBIN THREAD TENSION The tension on bobbin thread is regulated by the screw in Figs 27 and 28 on the end of the shuttle tension spring To increase bobbin thread tension gradually tighten screw See Fig 27 To decrease bobbin thread tension gradually loosen screw See Fig 28 When bobbi
29. ng Cover Plate Fig 35 Removing Ports from Rack Box 15 INSTRUCTIONS FOR REMOVAL OF THE RACK BOX If for any reason it is necessary to remove the rack box from the machine proceed as follows Remove the machine from its treadle stand or power bench Turn the hand wheel until the connecting rod hinge screw X2 Fig 36 is opposite the hole in the lower arm Then tilt the machine back upon its machine pulley end the underside facing the adjuster Insert a screwdriver through the hole as shown in Fig 36 and remove the screw X2 Slightly loosen the two screws B2 by giving them a half turn with a screwdriver Then drive out the taper pin C2 using a 3 16 punch and hammer and take out the two screws 2 The machine should now be replaced on its feet and the horn will then come away if pulled in a horizontal direction CAUTION Never raise the front of the horn or the end of the long rack may be damaged When re assembling the box to the machine be sure that the taper pin C2 is driven in as far as it will go before finally tightening the two screws B2 Fig 36 NOTE Cover plate is shown removed in Fig 36 to illustrate how the gears and racks should be correctly engaged B2 C C2 Gears and Racks Correctly Engaged X2 36 Removing Rock Box TO TIME THE SHUTTLE Turn hand wheel until eccentric stud is aligned with screwdriver hole D2 Fig 37 D2 Fig 37 Locntion of Eceentrie Stud for Timing Shut
30. r benzine in the oiling places run the machine rapidly then wipe clean and oil To Avoid Breaking Needles The feeding foot should be securely fastened by the thumb screw Do not sew heavy seams or very thick material with too fine a needle A large needle and thread to correspond should be used on heavy work See page 5 Avoid pulling the material when stitching This may cause the needle to strike on the needle plate and break Breaking of Upper Thread Improper threading of machine Tension being too tight The thread being too coarse for the size of the needle The needle being bent having a blunt point or being set incorrectly Breaking of Under Thread Improper threading of shuttle Bobbin Thread tension being too tight Skipping of Stitches The needle may not be accurately set into the needle bar or the needle may be blunt or bent Remove the accumulation of dirt or lint which might gather behind thread retaining spring near bottom of needle bar by working a piece of tape or thread back and forth between spring and needle bar CAUTION Do not bend spring away from needle bar or spring may become permanently damaged Examine feeding foot and remove any dirt or lint from the teeth to insure regular feeding of material Working on old hard leather When working on old hard leather it is advisable to soften the leather with oil use a coarse needle and make a long stitch to prevent needle from splitting the leather
31. read NOTE No 8666 is used on Machine No 29K72 unless otherwise specified on order 42 MACHINE BASES FOR POWER TABLES Ref No Part No 82214 82113 50616 Description Machine Base for No 29K71 Machine Machine Base for Nos 29K72 and 29K73 Machines Machine Base Screw for fastening Base to Machine 4 NOTE Illustrated on page 40 Ref No 9 Machine Base Screw wood 1 in No 12 for fastening Base to Power Table 4 NOTE These bases are only supplied when specified on order and are charged extra 43 NUMERICAL LIST OF PARTS mm Part No Page No Part No Page No Part No Page No RR18 18 SS658 30 32 8645 18 41D 22 24 662F 30 8651 36 SS 45E 22 24 6680 20 8654 30 SS 50F 26 761 34 8656 26 66F 20 1177 20 8659 26 NN88W 28 1423J 30 32 8661 18 89E 30 32 1519E 34 8666 40 NN 963 20 15201 18 8670 22 24 NN98R 34 1560 20 8675 28 NN99K 26 1801 22 24 8684 36 38 NN100K 26 1808 18 8695 22 24 NN101J 20 1816 28 11661 30 NN105H 22 24 2102 20 11663 18 22 24 128D 20 36 38 2103 20 25537 40 55132 32 2460 36 38 33892 20 55133 26 32 2975
32. t No No Description ee 2 22 1 82087 Bobbin Winder complete Nos 128D SS469W 2460 8684 81965 and 82086 2 128D Frame Screw 3 8651 Spindle 4 82086 Frame 5 8684 Eccentric 6 55469W Eccentric Thumb Screw 7 8371 Pulley 8 2460 Rubber Ring 81965 Spindle 8651 with 8371 37 BOBBIN WINDER COMPLETE MACHINES NOS 29K71 AND 29K73 INCHES 82090 1280 82088 82086 8684 SS469W 8371 2460 82089 38 BOBBIN WINDER COMPLETE MACHINE NO 29K72 Description Bobbin Winder complete Nos 128D SS469W 2460 8684 82086 and 82089 Frame Screw Spindle Frame Eccentric Eccentric Thumb Screw Pulley Rubber Ring Spindle 82088 with 8371 39 BOBBIN WINDER COMPLETE MACHINE 29K72 14 15 16 Part 36570 36571 36807 36569 25537 120378 418E 82833 50616 8604 82552 8582 8590 8557 8558 8666 40 ACCESSORIES Description Oiler 36569 filled with oil Oiler Spout 1 3 4 inch long with 36807 Washer leather Oiler with 36571 Screw Driver machine Screw Driver shuttle tension Machine Screw for fastening Machine to Power Table 4 Machine Screw Washer 4 Machine Screw for fastening Machine to Stand 4 Bobbin 29K71 29K73 Machines 2 Bobbin 29K72 Machine 2 Steady Pin 2 Threading Wire FEEDING FEET Feeding Foot narrow fork fine Feeding Foot narrow fork coarse Feeding Foot for waxed th
33. t the machine without turning the hand wheel in the wrong direction place a piece of material under the feeding foot 6 Lower feeding foot by lowering lifter and oper ate machine until you have become accustomed to guiding the material Material is moved along by the feeding foot only and the direction of stitching can be changed as de sired by turning wings Fig 32 To make a curved line of stitching operate machine slowly and without turning work turn the revolving wings enough to pro duce the desired curve Feeding foot rises between each stitch while needle is in the material With needle serving as pivot ma terial can be turned in any direction When desired the feeding foot may be fixed to work in a straight line in any direction by tightening the knurled screw Fig 22 Never turn the work or alter the direction of the feed while the foot is pressing on the material as this may cause missed stitches and damage the surface of the work Fig 5 Operating Machine NEEDLES Needles for MACHINES 29K71 29K72 and 29K73 are of Class and Variety 29 x 3 for cloth and 29 x 4 for leather Needles 29 x 3 are made in sizes 11 14 16 17 18 19 21 22 23 24 and 25 Needles 29 x 4 are made in sizes 9 11 14 16 18 19 21 22 23 24 and 25 The above needles regularly have nickel finish but can be supplied with chromium finish if ordered The size of the needle to be used should be deter mined by the size o
34. the zero mark is opposite the small plunger U Other adjustments can be made in steps by turning the nut to suit any thickness of material and thread within the capacity of the machine NOTE All machines sent out from the factory are so adjusted that they will give satisfactory results on a general range of materials Before any adjustment is made to the travel of the take up lever the needle bar should be raised to its highest point J K 12 ADJUSTMENT OF THREAD TAKE UP LEVER REGULATOR INDICATOR The range of adjustment given by the indicator when sent out from the factory should suffice for all general purposes but if desired the range can be raised or lowered by means of the adjusting screw T Fig 29 at the extreme right To alter the range loosen the lock nut and using a screwdriver turn the center screw T to the right to reduce the travel of the take up lever To increase the travel turn the screw T to the left Wear at the tip of the center screw can also be taken up in this manner When the proper adjustment has been obtained tighten the lock nut S It is most important that the hexagon head nut R be securely locked against the face of the piston TO CHANGE LENGTH OF STITCH The length of stitch is regulated by the stitch regu lator which is held in position by thumb screw M Fig 30 at back of the feeding foot bar Loosen thumb screw M and move the regulator up or down until its top is in line with t
35. tle To time the shuttle turn eccentric stud at hole D2 until the leading edge of the shuttle carrier moves at each oscillation to a position approximately one third the distance across the needle slot below the face plate as shown in Fig 38 1 3 gt DISTANCE Fig 38 Correct Timing of Shuttle Carrier NOTE Shuttle is removed in Fig 38 to illustrate correct timing of leading edge of shuttle carrier PARTS LIST FOR SINGER 29K71 29K72 and 29K73 SINGLE NEEDLE LOCK STITCH UNIVERSAL UPPER FEED MACHINES THE SINGER MANUFACTURING COMPANY 17 PARTS LIST FOR MACHINES 29K71 29K73 INSTRUCTIONS FOR ORDERING To simplify ordering of parts exploded views of the various sections of the mechanism are shown in the same illustration as the assembly of those parts On the page opposite the illustration is a list of parts with key or reference numbers to indicate the position of that part in the illustration These key numbers in the first column are for reference only and are not to be used in ordering parts In ordering from this list use ONLY the PART number in the SECOND column The number stamped on a Sewing Machine Part is the number of the single part only Every combination of parts sent out has its specific number which although not stamped on Parts must be used when ordering the combination Each number always indicates the SAME PART in whatever list it appears or for whatever Machine The letters a
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