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The manual covers main warnings and safe operation requirements, machine description including curved-needle and shuttle mechanism, assembly marks and serial numbering, and resetting procedures via handwheel dial and cam alignment. It also lists key technical specifications such as speed control, stitch length range, needle and thread parameters, and electrical ratings, followed by preparation steps including compressed air system setup and warning air pressure setting.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":30,"@type":76,"position":81},"https://docshare.wps.com/document/technology/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/747-lockstitch-sewing-machine-operating-instruction-manual-rev-201101/647742/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/747-lockstitch-sewing-machine-operating-instruction-manual-rev-201101/647742.png","ImageObject",300,407,{"name":92,"@type":93},"RuangKosong","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-29","2026-10-23",true,{"@type":102,"interactionType":103,"userInteractionCount":19},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What safety rules does the manual emphasize before operating the 747 machine?","Question",{"text":112,"@type":113},"The manual stresses that the electrical device must be soundly earthed and that protection systems provided by the manufacturer must not be removed while the machine is on. It also requires qualified personnel for all settings, replacements, and repairs using manufacturer-qualified tools and parts.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"How is the compressed air system connected and what air pressure is required?",{"text":117,"@type":113},"The filter-reducer unit must be connected to the compressed air supply using the special flexible tubing into the rapid snap-on connection. The manual states the pressure to be set for the machine is 4 bar, visible on the pressure gauge dial.",{"name":119,"@type":110,"acceptedAnswer":120},"What is the purpose of assembly marks and how should cam and crank marks be aligned?",{"text":121,"@type":113},"Assembly marks and serial numbers exist on the crank (747-222) and cams, and different cam assemblies correspond to different guide kits. When adjusting, the marks on the crank and cams (1#-11#) must align with scale '0' on the handwheel dial, and cam/crank (1#) can be adjusted among three marks depending on material and/or thread.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},647742,1792934372,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":29,"category_name":30,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":19,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":139,"language":140,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":67,"update_tm":144,"read_time":145},962090883219,"https://ap-avatar.wpscdn.com/davatar_276721f389ce27ea32af1340a28f341c","747 LOCKSTITCH SEWING MACHINE  \nFOR MOCCASINS  \nOPERATING INSTRUCTION MANUAL  \nRev 201101  \nThank you very much for your choice of this double thread side seam sewing machine. Please read the manual carefully before use!  \nEnsure that the rotation of the pulley conformable to the red allow on the belt cover！  \nThe machine has passed CE！  \nMain Warnings:  \n❤ It is extremely important that the electrical device must be soundly earthed!  \n❤ It is absolutely forbidden to remove any protection system provided by manufacturer while machine is on!  \n❤ All setting and replacement operation must be carried out only by the qualified expert personnel!  \n❤ For repairs, all tools and replacement parts must be qualified by manufacturer!  \n❤ Whenever, and whatever reason, the machine is to be demolished, certain basic rules must be observed to safeguard public health and the environment in which we live!  \nCONTENTS  \n1. MACHINE DESCRIPTION   1  \n2. TECHNICAL FEATURES OF THE MACHINE   3  \n3. PREPARATION READY FOR USE ……………………………………………………………3  \n3.1 Distances to be respected around the machine ………………………………………………3  \n3.2 Compress air supply connection ……………………………………………………………3  \n3.3 The function of start pedal, knee lever and foot valve ………………………………………4  \n3.3.1 Start pedal ……………………………………………………………………………4  \n3.3.2 Knee lever ……………………………………………………………………………4  \n3.3.3 Foot valve ……………………………………………………………………………4  \n3.4 Needle thread preparation ……………………………………………………………………5  \n3.5 Tension adjustment setting of the needle thread ……………………………………………5  \n3.6 Stitch length adjustment setting ………………………………………………………………5  \n3.7 Adjustment setting of gathering rate …………………………………………………………6  \n3.7.1 Basic gathering rate setting ……………………………………………………………6  \n3.7.2 First increase gathering rate setting ……………………………………………………7  \n3.7.3 Correction gathering rate setting ………………………………………………………7  \n3.8 Sewing cycle description of Mod.747 ………………………………………………………8  \n4. REPLACEMENT AND ADJUSTMENT OPERATION …………………………………………8  \n4.1 Needle replacement …………………………………………………………………………8  \n4.2 Setting the highest position of the needle ……………………………………………………9  \n4.3 Setting the shuttle position ……………………………………………………………………9  \n4.4 Adjustment of stopping position …………………………………………………………10  \n5. CHANGE STITCH SEAMS ……………………………………………………………………10  \n6. MACHINE MAINTENANCE ………………………………………………………………10  \n6.1 Spare parts and tools supplied with the machine ……………………………………………11  \n7. COMPRESS AIR SYSTEM ……………………………………………………………………11  \n8. MAIN WARNING ………………………………………………………………………………12  \nPARTS DRAWING ………………………………………………………………………………14  \nSETUP THE PARAMETER OF THE MOTOR  \n1. MACHINE DESCRIPTION  \n747 is a lockstitch sewing machine for stitching both lasted and tubular models with various types of stitching. 747 can be fitted with five different sewing guides (need to be bought additionally) . The machine fitted with standard guide is called kit“S”, it can carry out the seam stitching “barca” or “classic”. The machine fitted with a “scalloping” system is called kit“C”, it can carry out the seam stitching “grain of rice”, which gives a more noticeable “hand-stitched”effect. The machine equipped with an edging device to instead of the guide is called kit“B”, it can carry out the special type of the edge stitching which is called “edge stitching” or “bordo”. Kit“D”, kit“E” and kit“F” are derived from kit“B”.  \n\n| 747C | | |\n| --- | --- | --- |\n| 747S | | |\n| 747B | | |\n| 747D | | |\n| 747E | | |\n| 747F | | |\n\nThe stitching is carried out by a curved-needle and shuttle movement, machanically controlled by a central shaft mounted with a series of cams for the various movements.  \nThere are assemble marks and serial number(1\\#-11\\#) on the crank (747-222) and all cams. Three cams (9\\#-11\\#) will be assembled differently according to the different guide has be fitted on the machine. (Kit“c” is fitted with cam(9\\#) and cam(10\\#), kit“B”, kit“D”, kit“E”and kit“F” is fitted with cam(11\\#) only, but these cams(9\\#-11\\#) have no use for kit “S”). ","cbCaikCutG8x6QIR","https://ap.wps.com/l/cbCaikCutG8x6QIR","pdf",1548318,48,"English","# MACHINE DESCRIPTION\n# TECHNICAL FEATURES OF THE MACHINE\n# PREPARATION READY FOR USE\n## Distances to be respected around the machine\n## Compress air supply connection\n## The function of start pedal, knee lever and foot valve\n# REPLACEMENT AND ADJUSTMENT OPERATION\n# CHANGE STITCH SEAMS\n# MACHINE MAINTENANCE\n# COMPRESS AIR SYSTEM","[{\"question\":\"What safety rules does the manual emphasize before operating the 747 machine?\",\"answer\":\"The manual stresses that the electrical device must be soundly earthed and that protection systems provided by the manufacturer must not be removed while the machine is on. It also requires qualified personnel for all settings, replacements, and repairs using manufacturer-qualified tools and parts.\"},{\"question\":\"How is the compressed air system connected and what air pressure is required?\",\"answer\":\"The filter-reducer unit must be connected to the compressed air supply using the special flexible tubing into the rapid snap-on connection. The manual states the pressure to be set for the machine is 4 bar, visible on the pressure gauge dial.\"},{\"question\":\"What is the purpose of assembly marks and how should cam and crank marks be aligned?\",\"answer\":\"Assembly marks and serial numbers exist on the crank (747-222) and cams, and different cam assemblies correspond to different guide kits. When adjusting, the marks on the crank and cams (1#-11#) must align with scale '0' on the handwheel dial, and cam/crank (1#) can be adjusted among three marks depending on material and/or thread.\"}]","747 Lockstitch Sewing Machine - Operating Instruction Manual - Rev 201101 | PDF",1792790005,121]