Singer Class 457 G 1 Manual Download Page 1 | Manualshive

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From the library of: Superior Sewing Machine & Supply LLC

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Summary of Contents for Class 457 G 1

Page 1: ...62 SERVICE MANUAL for SINGER MACHINE Class 457G1 Machine Class 457G1 u r V t i s SINGER NAHMASCHINENFABRIK KARLSRUHE AKTIENGESELLSCHAFT KARLSRUHE BADEN GERMANY From the library of Superior Sewing Mach...

Page 2: ...the Length of the Stitch 9 To set the Width of the Zig Zog Stitch 9 To clean the Hook and the Thread Ways 9 Timing and other Adjustments 10 To set the Thread Take up Spring 10 To set the Presser Bar 1...

Page 3: ...ec ting link and the feed driving eccentric connection super oilite bushings for the feed driving eccentric rock shaft the needle bar yoke shaft and the needle vibrating eccentric connection link 11 T...

Page 4: ...supplied is protected by a screen against dirt The level of the oil should be checked daily and refill ed when necessary Never allow the oil level to drop below the ADD OIL mark The oil screen should...

Page 5: ...e of 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 interferewith the successful opera...

Page 6: ...ext pass the thread through the thread guide in the tension bracket G Fig 7 and around the tension discs to the bobbin Then wind the end of the thread around the bobbin a few times and push the bobbin...

Page 7: ...O REPLACE THE BOBBIN CASE After threading take the bobbin case by the latch and place it on the center stud of the bobbin case base hol der Release the latch press the bobbin case until the latch catc...

Page 8: ...of needle thread loosely and turn the machine pulley toward you until the needle moves down and up again to its highest point thus catching the bobbin thread Then draw up the needle thread and the bo...

Page 9: ...Fig 14 on the front side of the arm the desired bight can be set and the same checked on the dial AD Fig 14 in five successive steps of 1 32 inch 0 8 mm each The setting is to be done when the machine...

Page 10: ...16 is set by turning the tension stud AK Fig 16 either toward the right to increase it or toward the left to decrease It with the tension screw AG Fig 16 securely Figure 16 tightened The tension on th...

Page 11: ...ressure on the material should be as light as possible while still sufficient to insure proper feeding AM u Figure 18 TO SET THE TENSION RELEASER The tension is automatically released i e the pres sur...

Page 12: ...r set screw Isvisible in the opening of the face plate Tighten the needle bar set screw Ifa setting gauge is not available the needle bar mo be set to the approx correct height in combinatic with a pr...

Page 13: ...o the needle bar loosen the two set screws in the hub ofthe hook and while holding the machine pulley kee ping the timing marks matched rotate the hook until the hook point is at the center line of th...

Page 14: ...itions should be made as follows Check the seating of the feed driving eccentric posi tion screw in the splined groove of the bed shaft The position screw is the first screw to appear when turn ing th...

Page 15: ...itted through the needle vibrating shaft to the adjusting eccentric BJ Fig 27 Its position screw the first screw to appear when turning the ma chine pulley in the normal direction of rotation is fa st...

Page 16: ...ews BU Fig 29 and BT Fig 30 located near the lower needle bar bus hing ana secured by lock screws to prevent shifting The needle bar yoke through the guide screws can be so adjusted that the yoke and...

Page 17: ...er O on the needle or numbered part Needles in containers marked For Singer Machines are NOT made by SINGER TO ALL WHOM IT MAY CONCERN The improper placing or renewal of the Trademark SINGER or any ot...

Page 18: ...From the library of Superior Sewing Machine Supply LLC...

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