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How to replace a broken smart mix selector knob on housing of a Bissell 7901-P model carpet cleaner/shampooer?

Spiral thread on knob is broken off.

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  • Sewing Machines Master
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Try posting to the correct category

Posted on Dec 07, 2016


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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017


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1 Answer

Viking 6570 feed stuck in reverse

There are two main reasons to cause this to happen, the pattern selector is lined up on the two dots or the buttonhole selector has broken. Try pulling out the zig zag knob ant turn it thru the 4 positions and then push it back in. Hope this helps.

Dec 31, 2017 | Sewing Machines

1 Answer

How to thread model 661 sewing machine

From the photo, it appears that you may have the thread path correct, but it does appear that the thread is not seated in the tension disk (the round knob that the thread goes around before going up to the take-up lever). There is a spring in the tension disk that needs to be activated. FIRST, be sure when you thread the upper thread, ALWAYS RAISE the presser foot. These releases the tension disk and allows the thread to seat. Also, when going around the tension knob, hold the thread above where it goes around the knob and make a complete circle around the tension disk and tug. This should seat it in the spring.

Brother 651 Charger Sewing Machine Threading Diagram

A manual would be most helpful, not only in how to use your machine but also how to maintain (clean & oil) it.

If you don't have a manual, search the internet for:

Make + Model + the word "Manual"


Oct 26, 2016 | Sewing Machines

1 Answer

Straight stitch

Tension knob on any machine will be in the thread path and usually above the needle somewhere, while the stitch width and length knobs are usually on the right side of the machine. I cant identify your model but on any machine straight stitch is usually a length of 2.5 and width of 0, while a zigzag the width will be set somewhere between 2-4 depending on how wide you need it to be. There is usually a stitch selector of some sort too but many machines, providing the width is set to 0, you will get a straight stitch.

May 29, 2013 | Husqvarna Sewing Machines

1 Answer

Bobbin tension

Difficult to say.

Might try installing a brand new needle.
Remove the top thread, ALWAYS RAISE the presser foot and rethread from the beginning.
Set the top tension to the midpoint and retest the machine. Tweak the top tension as needed.

Understanding Thread Tension Threads

However, if you believe something is broken in the machine, you may need to order replacement parts.


Dec 10, 2017 | Husqvarna Freesia 425

1 Answer

Missing stitch selector knob on singer 2932

call sears parts direct & ask them about the part

Jul 10, 2012 | Singer Sewing Machines

1 Answer

I cant get the tention right what numbers should the 3 knobs be ever three or 4 stitchs are slack or all of them i dont no what knob is for the top stitchs and which is the under neath

Forget the three knobs for tension adjustment, only the top tension knob should be about 4 or 5, you should be able to pull the bottom thread through on the bobbin with slight resistence, if it is too tight slacken the screw on the bobbin case anti clockwise about a quarter of a turn, pattern selectors stitch length and width work independently of the tensions.

Aug 10, 2011 | Necchi 6022 Sewing Machine

1 Answer

How do I shorten the stitch to make a rolled hem? Please help.

For the rolled hem: the needle is in the O2 or right position, the length is 1.5 in the rolled section- you will see this, if you look on the side of the bottom knob- you can decrease this to 1, but you have to stay within the rolled section, the width is 3.5. the stitch selector is on D, the upper looper selector is UP, the blade is engaged and the subsidiary looper is to the right. You can use a decorative thread in the upper looper- Madeira Decor, Superior Threads made for bobbin work, or YLI Pearl Crown Rayon- or use a wooly nylon for excellent coverage and not need to decrease stitch length. I usually don't need to change the length with these threads.

May 21, 2010 | Baby Lock Evolve

3 Answers

Viking Husqvarna Model 6020 stitch selector will not turn.

look at the cam gear. This is the unit that the cam connects to. It could have a crack or be split completely. If there is a crack the cam stack will have to be replaced. The parts are hard to get and a good technician is needed.

Apr 23, 2010 | Husqvarna Viking 1

1 Answer

Broken plastic part within which thread spool pin is inserted

You can search for:

Make Model parts diagram

to see what replacement parts are available.

If not, you can probably devise something to improvise. I've used plastic drinking straws as spool pins, or plastic chop sticks.

Jun 27, 2017 | Janome Sewing Machines

4 Answers


Your local Husky dealer or via their head office in your country ought to be helpful unless they are out of print.........if so, ......Try or

Jun 01, 2008 | Sewing Machines

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