Service Manual
Page 11
... UNIT, BACK COVER UNIT, TOP COVER AND FRONT COVER UNIT. 2. PRESSER BAR LIFTER SETSCREW (A) NEEDLE TOP SURFACE OF NEEDLE TO BE PARALLEL .__.l R _ PLATE I j _\_ _] -_ 4.7 ~ 5.3 MM (DIRECTION OF PRESSER FOOT) RAISE THE PRESSER BAR LIFTER AND LOOSEN SETSCREW (A). TIGHTEN THE SETSCREW (A). 4. ATTACH THE FRONT COVER UNIT, LOOPER COVER UNIT, TOP COVER, BACK...
... UNIT, BACK COVER UNIT, TOP COVER AND FRONT COVER UNIT. 2. PRESSER BAR LIFTER SETSCREW (A) NEEDLE TOP SURFACE OF NEEDLE TO BE PARALLEL .__.l R _ PLATE I j _\_ _] -_ 4.7 ~ 5.3 MM (DIRECTION OF PRESSER FOOT) RAISE THE PRESSER BAR LIFTER AND LOOSEN SETSCREW (A). TIGHTEN THE SETSCREW (A). 4. ATTACH THE FRONT COVER UNIT, LOOPER COVER UNIT, TOP COVER, BACK...
Service Manual
Page 13
...POSITION OFTHE SUB FEED CAM AND TIGHTEN SETSCREWS (B). # TURN THE SUB FEED CAM TO THE DIRECTION (C) IF THE FEED DOG IS LOWER THAN THE SURFACE OFTHE NEEDLE PLATE. # TURNTHE SUB FEED CAM TOTHE DIRECTION (D) IFTHE FEED DOG IS HIGHER THAN THE SURFACE OFTHE NEEDLE PLATE. THE TOP SURFACE OF ...FEED DOG TOHF ENTEOEPDLE PLATE '_ 2 ~ 4 MM _J DIRECTION (C) DIREC_ f!THE END OF FEED MOVEMENT _{ "_ THE BUSHING AND FEED CAM SHOULD BE ABOUT 1 MM SETSCREW (A) BUTSHHEINCGLEARANCE BETWEEN _ MAIN FEED CAM SETSCREW (B) 00. 11 L...
...POSITION OFTHE SUB FEED CAM AND TIGHTEN SETSCREWS (B). # TURN THE SUB FEED CAM TO THE DIRECTION (C) IF THE FEED DOG IS LOWER THAN THE SURFACE OFTHE NEEDLE PLATE. # TURNTHE SUB FEED CAM TOTHE DIRECTION (D) IFTHE FEED DOG IS HIGHER THAN THE SURFACE OFTHE NEEDLE PLATE. THE TOP SURFACE OF ...FEED DOG TOHF ENTEOEPDLE PLATE '_ 2 ~ 4 MM _J DIRECTION (C) DIREC_ f!THE END OF FEED MOVEMENT _{ "_ THE BUSHING AND FEED CAM SHOULD BE ABOUT 1 MM SETSCREW (A) BUTSHHEINCGLEARANCE BETWEEN _ MAIN FEED CAM SETSCREW (B) 00. 11 L...
Service Manual
Page 14
... THE BACK COVER UNIT. WHEN THE NEEDLE BAR GOES DOWN, THE UPPER KNIFE ALSO GOES DOWN. @0 UPPER KNIFE DRIVE CAM GUIDE LINE ON MAIN SHAFT \ DIRECTION (D) --(£_ ..... TURN THE HANDWHEEL TOWARD YOU ONE CYCLE, AND RECHECK THE NEEDLE AND THE UPPER KNIFE TIMING. 6. WHEN THE NEEDLE BAR GOES UP, THE UPPER... MOVE THE BALANCE WEIGHT TO LEFT. 3.LOOSEN TWO SETSCREWS (B), AND ADJUST THE NEEDLE AND UPPER KNIFE TIMING. # TURN THE UPPER KNIFE DRIVE CAM TO THE DIRECTION (C) WHEN THE UPPER KNIFE TIMING IS DELAYED. # TURN THE UPPER KNIFE DRIVE CAM TO THE...
... THE BACK COVER UNIT. WHEN THE NEEDLE BAR GOES DOWN, THE UPPER KNIFE ALSO GOES DOWN. @0 UPPER KNIFE DRIVE CAM GUIDE LINE ON MAIN SHAFT \ DIRECTION (D) --(£_ ..... TURN THE HANDWHEEL TOWARD YOU ONE CYCLE, AND RECHECK THE NEEDLE AND THE UPPER KNIFE TIMING. 6. WHEN THE NEEDLE BAR GOES UP, THE UPPER... MOVE THE BALANCE WEIGHT TO LEFT. 3.LOOSEN TWO SETSCREWS (B), AND ADJUST THE NEEDLE AND UPPER KNIFE TIMING. # TURN THE UPPER KNIFE DRIVE CAM TO THE DIRECTION (C) WHEN THE UPPER KNIFE TIMING IS DELAYED. # TURN THE UPPER KNIFE DRIVE CAM TO THE...
Service Manual
Page 16
... 0.05 MM. ADJUSTTHE CLEARANCES BETWEEN NEEDLES AND THE FRONT EDGE OFTHE NEEDLE HOLES OF THE NEEDLE PLATE EQUAL BYTURNING THE NEEDLE BAR IN THE (D) OR (E) DIRECTION. THE ABOVE STANDARD CLEARANCE ALLOWS THE NEEDLE TO SLIGHTLY TOUCH THE FRONT NEEDLE GUARD. NEEDLE CLAMP SETSCREW (C) NO CLEARAN( NEEDLE GAUGE (787-G02) (D) NEEDLE BAR...
... 0.05 MM. ADJUSTTHE CLEARANCES BETWEEN NEEDLES AND THE FRONT EDGE OFTHE NEEDLE HOLES OF THE NEEDLE PLATE EQUAL BYTURNING THE NEEDLE BAR IN THE (D) OR (E) DIRECTION. THE ABOVE STANDARD CLEARANCE ALLOWS THE NEEDLE TO SLIGHTLY TOUCH THE FRONT NEEDLE GUARD. NEEDLE CLAMP SETSCREW (C) NO CLEARAN( NEEDLE GAUGE (787-G02) (D) NEEDLE BAR...
Service Manual
Page 23
... WITH THIS ADJUSTMENT, CHECKTHE LOWER LOOPER TIMING AND POSITION OF UPPER LOOPER. 2. TIGHTEN TWO SETSCREWS. 5. CHECK THE CLEARANCE BETWEEN THE LOOPERS. 6. ATTACH THE MACHINE BASE. REMOVE THE MACHINE BASE. 3. LOWER (FIG. 1) R LOOPER (FIG. 2) \ (FIG. 4) SETSCREWS MARKING-OFF LINE UPPER LOOPER DRIVE CAM 21 TO ADJUST THE TIMING... AS SHOWN IN FIG. 1. TO ADJUST: 1. LOOSEN TWO SETSCREWS, AND ADJUST THE TIMING BY TURNING THE UPPER LOOPER DRIVE CAM IN THE DIRECTION OF: (A): IF THE TIMING OF UPPER LOOPER IS ADVANCED AS SHOWN IN FIG. 3. (B): IF THE TIMING OF UPPER LOOPER IS DELAYED AS...
... WITH THIS ADJUSTMENT, CHECKTHE LOWER LOOPER TIMING AND POSITION OF UPPER LOOPER. 2. TIGHTEN TWO SETSCREWS. 5. CHECK THE CLEARANCE BETWEEN THE LOOPERS. 6. ATTACH THE MACHINE BASE. REMOVE THE MACHINE BASE. 3. LOWER (FIG. 1) R LOOPER (FIG. 2) \ (FIG. 4) SETSCREWS MARKING-OFF LINE UPPER LOOPER DRIVE CAM 21 TO ADJUST THE TIMING... AS SHOWN IN FIG. 1. TO ADJUST: 1. LOOSEN TWO SETSCREWS, AND ADJUST THE TIMING BY TURNING THE UPPER LOOPER DRIVE CAM IN THE DIRECTION OF: (A): IF THE TIMING OF UPPER LOOPER IS ADVANCED AS SHOWN IN FIG. 3. (B): IF THE TIMING OF UPPER LOOPER IS DELAYED AS...
Service Manual
Page 28
... THE LOOPER COVER UNIT, FACE PLATE UNIT, BACK COVER UNIT, TOP COVER AND FRONT COVER UNIT. 3. ADJUSTING SCREW DIRECTION ( _B)___ / 26 SET THE STITCH LENGTH DIAL AT "3" AND THE DIFFERENTIAL FEED DIAL AT "1.0". 2. TO ADJUST THE STITCH LENGTH CORRECT SETTING: THE ACTUAL STITCH ... IS SET AT "3" AND THE DIFFERENTIAL FEED DIAL AT "1.0". TO ADJUST: 1. IFTHE ACTUAL STITCH LENGTH IS SMALLER THAN 2.8 MM, TURN THE ADJUSTING SCREW IN THE DIRECTION (B). 4.
... THE LOOPER COVER UNIT, FACE PLATE UNIT, BACK COVER UNIT, TOP COVER AND FRONT COVER UNIT. 3. ADJUSTING SCREW DIRECTION ( _B)___ / 26 SET THE STITCH LENGTH DIAL AT "3" AND THE DIFFERENTIAL FEED DIAL AT "1.0". 2. TO ADJUST THE STITCH LENGTH CORRECT SETTING: THE ACTUAL STITCH ... IS SET AT "3" AND THE DIFFERENTIAL FEED DIAL AT "1.0". TO ADJUST: 1. IFTHE ACTUAL STITCH LENGTH IS SMALLER THAN 2.8 MM, TURN THE ADJUSTING SCREW IN THE DIRECTION (B). 4.
Service Manual
Page 29
ROTATE THE THREAD TENSION DIAL WHILE SEWING TO CHECK THE SEWING PERFORMANCE. 4. FRONT COVER UNIT TOP COVER ADJUSTING PLATE (A) t 27 TO ADJ UST THE THREAD TENSION DIALS TO CHECK: WHEN THE TENSION DIAL IS SET AT "3", ... COVER ANDTHETOP COVER. 2. ADJUST EACH THREAD TENSION WITH THE ADJUSTING PLATE (A). * IF THE THREAD TENSION IS AT STRONGER LEVEL, SHIFT THE ADJUSTING PLATE IN THE DIRECTION (B). * IF THE THREAD TENSION IS AT WEAKER LEVEL, SHIFT FHE ADJUSTING PLATE IN THE...
ROTATE THE THREAD TENSION DIAL WHILE SEWING TO CHECK THE SEWING PERFORMANCE. 4. FRONT COVER UNIT TOP COVER ADJUSTING PLATE (A) t 27 TO ADJ UST THE THREAD TENSION DIALS TO CHECK: WHEN THE TENSION DIAL IS SET AT "3", ... COVER ANDTHETOP COVER. 2. ADJUST EACH THREAD TENSION WITH THE ADJUSTING PLATE (A). * IF THE THREAD TENSION IS AT STRONGER LEVEL, SHIFT THE ADJUSTING PLATE IN THE DIRECTION (B). * IF THE THREAD TENSION IS AT WEAKER LEVEL, SHIFT FHE ADJUSTING PLATE IN THE...