UnionSpecial 63900 Adjustment Manual

Also see for 63900 Series: Instructions for adjusting and operating

Contents

UnionSpecial 63900 Adjustment Manual Manual pdf 2 page image

CONTENTS•PREFACE ............................................................................................................................................................... 4•SAFETYRULES ........................................................................................................................................................ 5•IDENTIFICATION OF MACHINES ........................................................................................................................... 6•CLASS DESCRIPTION ........................................................................................................................................... 6•STYLE OF MACHINES ............................................................................................................................................ 6•ILLUSTRATIONS ...................................................................................................................................................... 6•ILLUSTRATIONS (CONT.) ....................................................................................................................................... 7•IDENTIFYING PARTS .............................................................................................................................................. 7•NEEDLES ................................................................................................................................................................ 7•TABLEBOARD ........................................................................................................................................................ 8•BOBBIN WINDER ................................................................................................................................................... 8•BELTS ..................................................................................................................................................................... 8•LUBRICATION ........................................................................................................................................................ 9•RECOMMENDED OIL ........................................................................................................................................... 9•OIL GAUGE .......................................................................................................................................................... 9•SELF-PRIMING HEAD OIL SIPHON ...................................................................................................................... 10•INSTALLING AND MAINTENANCE OF OIL SIPHON ............................................................................................ 10•THREAD ............................................................................................................................................................... 11•REMOVING THE BOBBIN CASE .......................................................................................................................... 11•WINDING THE BOBBIN ....................................................................................................................................... 11•THREADING THE BOBBIN CASE .......................................................................................................................... 11•THREADING THE BOBBIN CASE (CONT.) ........................................................................................................... 12•REPLACING THE BOBBIN CASE .......................................................................................................................... 12•INSERTING THE NEEDLE ...................................................................................................................................... 12•THREADING THE NEEDLE .................................................................................................................................... 12•PREPARATION FOR SEWING .............................................................................................................................. 12•TENSIONS ............................................................................................................................................................ 12•BOBBIN THREAD TENSION .................................................................................................................................. 12•BOBBIN THREAD TENSION (CONT.) ................................................................................................................... 13•NEEDLE THREAD TENSION .................................................................................................................................. 13•CHANGING THE STITCH LENGTH ....................................................................................................................... 13•TIMING THE NEEDLE FEED WITH THE CONTINUOUS TURNING ROLLER FEED .................................................... 14•PRESSURE ON MATERIAL .................................................................................................................................... 14•SETTING THE NEEDLE BAR TO HEIGHT ................................................................................................................ 14