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Mechanical Sewing Machine

Model # 4075 Official White sewing machine

Here are the diagrams and repair parts for Official White 4075 sewing machine, as well as links to manuals and error code tables, if available.

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Browse Parts for4075 Sewing Machines

  • Motor Pulley 1350008-840
    #4

    Motor and foot controller diagram

    Motor pulley

    Part #1350008-840

    The manufacturer no longer makes this part, and there's no substitute part

  • Set Screw 10962
    #3

    Zigzag generating diagram

    Set screw

    Part #10962

    The manufacturer no longer makes this part, and there's no substitute part

  • Tension Plate 1920007-694-A
    #36

    Zigzag generating diagram

    Tension plate

    Part #1920007-694-A

    The manufacturer no longer makes this part, and there's no substitute part

  • Cs Nut 40303
    Cs nut

    Part #40303

    The manufacturer no longer makes this part, and there's no substitute part

  • Adj Screw 11516-A
    #10

    Rear cover diagram

    Adj screw

    Part #11516-A

    The manufacturer no longer makes this part, and there's no substitute part

  • Selecting Dial 1920007-521-651
    #12

    Reverse and zigzag sewing diagram

    Selecting dial

    Part #1920007-521-651

    The manufacturer no longer makes this part, and there's no substitute part

  • Screw 10955
    #40

    Zigzag generating diagram

    Screw

    Part #10955

    The manufacturer no longer makes this part, and there's no substitute part

  • Presser Bar Spring 1921002-362
    #3

    Presser bar diagram

    Presser bar spring

    Part #1921002-362

    The manufacturer no longer makes this part, and there's no substitute part

  • Set Screw 10928
    #41

    Upper shaft diagram

    Set screw

    Part #10928

    The manufacturer no longer makes this part, and there's no substitute part

  • Selecting Cam 1920006-531
    #32

    Zigzag generating diagram

    Selecting cam

    Part #1920006-531

    The manufacturer no longer makes this part, and there's no substitute part

Most common symptoms to help you fix your sewing machines

Choose a symptom to see related sewing machine repairs.

Main causes: power supply failure, bad power cord, faulty On/Off switch…

Main causes: lack of lubrication, lint buildup, worn drive belt, faulty drive motor…

Main causes: problems with the feed dogs, setting stitch length to 0…

Main causes: dirty shuttle race, improper thread routing, incorrect thread tension…

Main causes: disengaged clutch, broken drive belt, internal drive gear failure…

Main causes: faulty foot pedal, locked drive gears, wiring failure, bad drive motor…

Main causes: dirty shuttle race, wrong thread tension, bad needle timing, damaged needle, using the wrong type of needle…

Main causes: thread bunched up in the shuttle race, bad needle timing, internal drive gear failures…

Main causes: machine needs lubrication, internal gear failure…

Most common repair guides to help fix your sewing machines

These step-by-step repair guides will help you safely fix what’s broken on your sewing machine.

How to replace a sewing machine drive motor

How to replace a sewing machine drive motor

If the drive motor on your sewing machine runs roughly or doesn't run at all, you can replace it in about 30 minutes usi…

Repair difficulty
Time required
 15 minutes or less
How to replace a sewing machine drive belt

How to replace a sewing machine drive belt

You can replace a broken sewing machine drive belt in about 15 minutes. …

Repair difficulty
Time required
 15 minutes or less
How to replace a sewing machine on/off switch

How to replace a sewing machine on/off switch

If the sewing machine is completely dead, replace the On/Off switch using these 6 steps.…

Repair difficulty
Time required
 30 minutes or less

Effective articles & videos to help repair your sewing machines

Use the advice and tips in these articles and videos to get the most out of your sewing machine.

How to enjoy all the online benefits we offer on our Sears PartsDirect website

How to enjoy all the online benefits we offer on our Sears PartsDirect website

Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…

Top questions about Sears and Sears PartsDirect

Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect.…

How to use a multimeter to test electrical parts video

How to use a multimeter to test electrical parts video

Learn how to use a multimeter to check for wiring problems in an appliance that's not working…

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