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Craftsman Lawn Tractor, Model # 247.288851 - How to tighten/increase tension on the cutting deck pully belt after parts replacement

Removed cutting deck and replaced some parts. Reinstalled parts and cutting deck using "operator's manual" that came with lawn tractor.
Everything seems to be working properly except the belt tension on the cutting deck is too loose
- I have checked and rechecked the belt configuration
- I am fairly confident that I have the bow-tie pins in their orginal location
I think it might have installed part number 732-04871 incorrectly but I can't see another option from the diagram in the operators manual.

Craftsman , Lawn Tractors , Lawn Mowers
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3 Answers from these members:
Mark T
Thank you for your question.

I am sorry you are having a problem with the tractor. I have checked our image for this tractor but we do not have any images yet. The tractor is too new. I recommend visiting your local store to look at their floor model. If everything is connected like the floor model, I recommend checking the idler. With the tractor off and the key removed, engage the blades. Then look at the idler on the deck. If the cable spring is stretched, the cable should be fine. Know move to the idler. See if the idler is binding or hitting something. Is should be move enough to tighten the belt. I hope this is helpful.

If you still not determine where the problem is, I recommend having the tractor serviced. You can have it repaired at your home by a Sears technician. Here is a link for the website:

Sears Home Services


Thank you for using Manage my life.

Mark T.
by Mark T Earned 1,649 community points in Craftsman
August 15th, 2011
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