3
CONTENTS
IDENTIFICATION OF MACHINES ............................................................................................................................................................................. 2
SAFETY RULES .......................................................................................................................................................................................................... 4
CLASS DESCRIPTION ............................................................................................................................................................................................. 5
STYLE OF MACHINES .............................................................................................................................................................................................. 5
ILLUSTRATIONS ........................................................................................................................................................................................................ 6
IDENTIFYING PARTS ................................................................................................................................................................................................. 6
NEEDLES .................................................................................................................................................................................................................. 6
TERMS ...................................................................................................................................................................................................................... 6
THREADING & OILING FOR PLAIN FEED ............................................................................................................................................................... 7
THREADING & OILING FOR DIFFERENTIAL FEED ................................................................................................................................................... 8
NEEDLES .................................................................................................................................................................................................................. 9
LUBRICATION .......................................................................................................................................................................................................... 9
THREADING ............................................................................................................................................................................................................. 9
ADJUSTING INSTRUCTIONS .................................................................................................................................................................................... 9
TORQUE REQUIREMENTS ...................................................................................................................................................................................... 10
SYNCHRONIZING NEEDLE AND LOOPER MOTIONS .......................................................................................................................................... 10
TIGHTENING NEEDLE HEAD ................................................................................................................................................................................. 11
ALIGNING NEEDLES IN THROAT PLATE SLOTS .................................................................................................................................................... 11
CENTERING THE CYLINDER .................................................................................................................................................................................. 11
SETTING THE LOOPER ........................................................................................................................................................................................... 11
SETTING THE LOOPER (CONT.) ............................................................................................................................................................................ 12
SETTING HEIGHT OF NEEDLE BAR ........................................................................................................................................................................ 12
SETTING THE FEED DOGS FOR PLAIN FEED ......................................................................................................................................................... 12
SETTING THE FEED DOGS FOR DIFFERENTIAL FEED ............................................................................................................................................. 12
SETTING THE FEED DOGS FOR DIFFERENTIAL FEED (CONT.) .............................................................................................................................. 13
CHANGING STITCH LENGTH ................................................................................................................................................................................ 13
SETTING REAR NEEDLE GUARD ............................................................................................................................................................................ 13
PRESSER FOOT AND PRESSER BAR ADJUSTMENT ............................................................................................................................................... 14
UPPER FEED ROLLER ADJUSTMENT ...................................................................................................................................................................... 14
UPPER FEED ROLLER ADJUSTMENT (CONT.) ....................................................................................................................................................... 15
THREAD TENSION AND RELEASE .......................................................................................................................................................................... 15
DIFFERENTIAL CONTROL ...................................................................................................................................................................................... 15
SETTING NEEDLE THREAD TAKE-UP AND FRAME EYELET .................................................................................................................................... 16
LOOPER THREAD TAKE-UP ADJUSTMENT ............................................................................................................................................................ 16
FOLDER ADJUSTMENT .......................................................................................................................................................................................... 17
AIR BLOWER TUBE ADJUSTMENT .......................................................................................................................................................................... 17
MAIN FRAME, CAST-OFF PLATE, EYELETS, MISCELLANEOUS COVERS AND BUSHINGS ................................................................................. 19
MAIN FRAME, CAST-OFF PLATE, EYELETS, MISCELLANEOUS COVERS AND BUSHINGS (CONT.) ................................................................... 21
CYLINDER COVERS AND BUSHINGS FOR PLAIN FEED ....................................................................................................................................... 23
CYLINDER COVERS AND BUSHINGS FOR PLAIN FEED (CONT.) ........................................................................................................................ 25
CYLINDER COVERS AND BUSHINGS FOR DIFFERENTIAL FEED .......................................................................................................................... 27
CYLINDER COVERS AND BUSHINGS FOR DIFFERENTIAL FEED (CONT.) ........................................................................................................... 29
DETACHABLE HEAD ASSEMBLY ........................................................................................................................................................................... 31
OILING, NEEDLE LEVER, CRANKSHAFT AND MAIN SHAFT PARTS ..................................................................................................................... 33
PLAIN FEED BAR, FEED LIFT & FEED DRIVE COMPONENTS FOR PLAIN FEED .................................................................................................... 35
DIFFERENTIAL FEED BAR, MAIN FEED BAR, FEED LIFT ECCENTRIC ASSEMBLY FOR DIFFERENTIAL FEED ......................................................... 37
FEED DRIVE COMPONENTS, LOOPER DRIVE COMPONENTS AND LOOPERS FOR PLAIN FEED ..................................................................... 39
LOOPERS, LOOPER HOLDERS, FEED DRIVE COMPONENTS AND LOOPER AVOID COMPONENTS FOR DIFFERENTIAL FEED ..................... 41
LOOPERS, LOOPER HOLDERS, FEED DRIVE COMPONENT AND LOOPER AVOID COMPONENT FOR DIFFERENTIAL FEED (CONT.) .......... 43
UPPER ROLLER FEED, FOOT LIFTER AND THREAD TENSION PARTS .................................................................................................................. 45
UPPER ROLLER FEED, FOOT LIFTER AND THREAD TENSION PARTS (CONT.) .................................................................................................... 47
PULLEY, CRANKSHAFT, CLUTCH AND CLUTCH DRIVING MECHANISM ........................................................................................................... 49
PULLEY, CRANKSHAFT, CLUTCH AND CLUTCH DRIVING MECHANISM (CONT.) ............................................................................................ 51
SEWING PARTS ...................................................................................................................................................................................................... 53
THREAD STAND ..................................................................................................................................................................................................... 55
ACCESSORIES ....................................................................................................................................................................................................... 56
NUMERICAL INDEX OF PARTS .............................................................................................................................................................................. 57
NUMERICAL INDEX OF PARTS .............................................................................................................................................................................. 58
NUMERICAL INDEX OF PARTS .............................................................................................................................................................................. 59
NOTES .................................................................................................................................................................................................................... 60
NOTES .................................................................................................................................................................................................................... 61
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