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White
Mechanical Sewing Machine

Model # WHITE4075 Official White sewing machine

Here are the diagrams and repair parts for Official White WHITE4075 sewing machine, as well as links to manuals and error code tables, if available.

There are a couple of ways to find the part or diagram you need:

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  • In the search box below, enter all or part of the part number or the part’s name.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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For DIY troubleshooting advice and repair guides, visit our repair help section.

Error Codes

Model diagram and schematic

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ALL PARTS
Showing 10 of 267 parts  |
Collar 150003-115-D
#34

Upper shaft diagram

Collar

Part #150003-115-D

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

Screw Driver S 719001-364
#11

Accessories diagram

Screw driver s

Part #719001-364

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

Set Screw 10949
#13

Motor and foot controller diagram

Set screw

Part #10949

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

Assistant Foot Cover 1921001-196-651
#6

Rear cover diagram

Assistant foot cover

Part #1921001-196-651

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

Selecting Dial Shaft 1920007-632
#10

Reverse and zigzag sewing diagram

Selecting dial shaft

Part #1920007-632

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

Adj Screw 11510-A
#23

Reverse and zigzag sewing diagram

Adj screw

Part #11510-A

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

Timing Belt 1750008-843
#6

Motor and foot controller diagram

Timing belt

Part #1750008-843

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

Shuttle Race Assembly 1921003-051
#11

Lower shaft diagram

Shuttle race assembly

Part #1921003-051

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

Set Screw 10401-B
#19

Needle bar diagram

Set screw

Part #10401-B

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

Washer 60122-A
#12

Needle bar diagram

Washer

Part #60122-A

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.

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Why does the bobbin thread break in my sewing machine?

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

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Why is my sewing machine skipping stitches?

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

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Why does my sewing machine lock up?

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

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Why does my sewing machine make a knocking sound?

Main causes: machine needs lubrication, internal gear failure…

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Why won't fabric move through my sewing machine?

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

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Why is my sewing machine running sluggishly?

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

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Why won't my sewing machine needle move?

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

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Why doesn't my sewing machine motor run?

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

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Why won't my sewing machine turn on?

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

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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.

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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.…

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Repair difficulty
Time required
 30 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. …

Read more
Repair difficulty
Time required
 15 minutes or less
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…

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Repair difficulty
Time required
 15 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.

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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.…

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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.…

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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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