Model #917270740 CRAFTSMAN Lawn, Tractor

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Engine wants to stall? 917270740 Craftsman 17.0hp 42


Thanks for the inquiry and for being a valued member.

I am sorry to hear of the issue you're having with the tractor stalling. I know how frustrating that is.

This definitely sounds like an issue with one of the safety switches. You could have a loose or dirty connection, or one of the switches are in need of replacement. One switch is for the brake/clutch, one for the blade engagement, and the other is the seat switch. I would start by cleaning the contacts and make sure the connection is secure. If that doesn't help, the switches will need to be checked for continuity with a meter. 

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

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Jeff Wallace Sr -
Sears Technician
May 31, 2015

is hydrostatic transaxel serviceable? 917270740 Craftsman 17.0hp 42" mower automatic lawn tractor


Thank You for choosing Sears I regret to hear that you are having issues with your tractor and do understand your frustration. Glad to help out. Im looking at your model number 917270740 with transaxle 314-0510 and the trransaxle is serviceable. I was included a link for the diagram and parts list for it. It does have a retaining ring(12 in the diagram). Hope this information helps. I have included a link to our PartsDirect page where you can purchase the part you need to complete your repair. Just click the blue link above to be taken to the page. If you have further questions please resubmit your question for further information.
Thank you for choosing Sears

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Sherman_G_Wallace -
Sears Technician
April 09, 2014



The tractor is great for helping with work around the yard. The tractor not moving can be very concerning. I found some information for you that I am hoping will help you until your expert answers your question. I am adding the link below to help you with your question while you wait for your expert response. It may take 24-48 hours. I do hope that this will help you with the tractor.

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Marc -
September 24, 2012

Thank you for your question on the tractor not always moving at full drive speeds.

It is possible that you have air in the hydrostatic drive pump in the transmission. It is also possible that it is a little low on oil.

On thing that may help is to try to purge the air out of the hydrostat transmission.

Drive the tractor on to a flat surface that you will have free space 10 ft. in front and 10 ft. behind it.

Turn the tractor off and get off the tractor and pull the transport free-wheel lever out and lock in key hole.

Get back on the tractor and start it and push the motion control all the way forward and all the way back 5 to 6 times and then turn the tractor off and get off the tractor and re-engage the transport free-wheel lever back in all the way.

Then get back of the tractor and start it and push the motion drive lever forward about 10 feet and then backwards about 10 feet.

Then see if that helped with the problem.

If it did not you may have a valve issue inside the transmission and may need a technician for repair.

Please let me know if it helped.

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Sam A -
Sears Technician
September 26, 2012
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