Model #917377390 CRAFTSMAN Walk Behind Lawnmower, Gas

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Question and Answers

Q:

Replace starter pulley 917377390 Craftsman Rotary mower

Q:

replacing Bail Control on Mower 917.377390

A:

Thanks for the inquiry and for being a valued member.

As long as the zone control cable is intact and not damaged, I would suspect that just a control bar will suffice for replacement. There really aren't too many other components that work in conjunction with it. 

I hope this helps and thanks for using SearsPartsDirect.com. We appreciate your business. 

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Jeff Wallace Sr -
Sears Technician
June 25, 2015
Q:

Symptoms of bad worm drive or pinion gear

A:

The Craftsman model is 917377390

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Tom -
July 08, 2013
A:

Just replace both gears. Sometimes the damaged gear will be obvious, but not all the time. I usually just replace them both, that way I know that one old gear isn't going to cause premature wear on a new gear.

Thank you for using Manage My Life!

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Wade_B -
Sears Technician
July 09, 2013
A:

Thanks Wade_B - that makes total sense. Good news is I've ordered both gears - I'll try to remember to update the thread with results.

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Tom -
July 10, 2013
A:

The old pinion gear was significantly worn - I'll post a picture soon. Replaced both gears, and while the drive pulley does turn and now drives the wheels forward, I'm surprised how hard it is to turn (without drive belt attached of course). The gear case and pulley got pretty warm after just a few minutes of "drive". I could not turn the pulley by hand when the "clutch" was engaged. When not engaged, its very easy and smooth. Is there a trick to re-assembling the two halves of the gear case so that the worm and pinion gears are properly aligned so that the worm gear is sort of "centered" between the top and bottom shaft bushings? I'm wondering if you don't align things just right when re-assembling the gear case, the way these two (new) gears mesh ends up with excessive pressure on the "face" of the bushing, making it hard to drive? Hope this makes sense - thanks for any pointers.

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Tom -
July 18, 2013
A:

Did you pack the new gears with grease? If not, you need to make sure you do that. If you did pack the gears (and case) with grease then I think there may be a problem with the gears not meshing up correctly. The input is usually going to turn a little bit hard by hand, but not so hard that you should have to really put force to it to make it turn.

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Wade_B -
Sears Technician
July 22, 2013
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