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Singer
Mechanical Sewing Machine

Model # 4624 Official Singer sewing machine

Here are the diagrams and repair parts for Official Singer 4624 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:

  • Click a diagram to see the parts shown on that diagram.
  • 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 384 parts  |
Singer Reg Shaft 314173
#5

Alpha feed diagram

Singer reg shaft

Part #314173

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

Clamp 312851
Clamp

Part #312851

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

Singer Torque Cushn 988795-001
#6

Electrical equipment diagram

Singer torque cushn

Part #988795-001

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

Singer Stud Nut 314299-451
#3

Demand responsive needle tension system diagram

Singer stud nut

Part #314299-451

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

Sewing Machine Sliding Buttonhole Foot 313992-451
#13

Attachment set diagram

Sewing machine sliding buttonhole foot

Part #313992-451

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

Bracket Screw 113516-451
#28

Arm top cover diagram

Bracket screw

Part #113516-451

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

Release Pin 313023
#11

Pattern, stitch length control & cam controlled feed diagram

Release pin

Part #313023

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

Singer Mounting Screw 113524-451
#26

Demand responsive needle tension system diagram

Singer mounting screw

Part #113524-451

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

Singer Crank Control 312801
#11

Alpha feed diagram

Singer crank control

Part #312801

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

Singer Control Arm 314283
#11

Pattern, stitch length control & cam controlled feed diagram

Singer control arm

Part #314283

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. …

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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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