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Singer 9940 sewing machine Parts
Here are the diagrams and repair parts for Singer 9940 sewing machine, as well as links to manuals and error code tables, if available.
Owner’s manual
Error CodesBy Schematic
SELECT DIAGRAM
Browse Parts for 9940 Sewing Machines
Wave Washer
Part #HP12487
The manufacturer no longer makes this part, and there's no substitute part
Snap Ring
Part #HP04993
The manufacturer no longer makes this part, and there's no substitute part
Power circuit diagram
Stud
Part #HP31719
The manufacturer no longer makes this part, and there's no substitute part
Base/head/face plate diagram
Thread Cutter Base
Part #HP31966
The manufacturer no longer makes this part, and there's no substitute part
Needle bar guide/z link bracket diagram
Threader Holder Spring
Part #HP32799
The manufacturer no longer makes this part, and there's no substitute part
Lower shaft diagram
Lower Shaft Assembly (incl. 1-19)
Part #HP33063
The manufacturer no longer makes this part, and there's no substitute part
Z pulse motor diagram
Bh Switch Assembly
Part #HP32910
The manufacturer no longer makes this part, and there's no substitute part
Base/head/face plate diagram
Face Plate Panel
Part #HP33017
The manufacturer no longer makes this part, and there's no substitute part
Front enclosure/front panel diagram
Electrical Rating Label
Part #HP33034
The manufacturer no longer makes this part, and there's no substitute part
Unit cover diagram
Bobbin Winder Thread Guide
Part #HP33052
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: dirty shuttle race, wrong thread tension, bad needle timing, damaged needle, using the wrong type of needle…
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: machine needs lubrication, internal gear failure…
Main causes: thread bunched up in the shuttle race, bad needle timing, internal drive gear failures…
Main causes: faulty foot pedal, locked drive gears, wiring failure, bad drive motor…
Main causes: power supply failure, bad power cord, faulty On/Off switch…
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 on/off switch
If the sewing machine is completely dead, replace the On/Off switch using these 6 steps.…
Repair time and Difficulty
30 minutes or less
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 time and Difficulty
15 minutes or less
How to replace a sewing machine drive belt
You can replace a broken sewing machine drive belt in about 15 minutes. …
Repair time and Difficulty
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.
Get answers to frequently asked questions about Sears and Sears PartsDirect.…
Learn how to use a multimeter to check for wiring problems in an appliance that's not working…
These answers to common questions can help you make the most of your sewing machine.…
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