Model #917273639 Craftsman lawn, tractor

Question and Answers

Q:

what is the valve settings for my tractor model 917.273639

A:

The valve clearances for the engine on your tractor are: intake .003-.005, exhaust .005-.007.

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Jimmy K -
Sears Technician
April 26, 2010
Q:

replace a primary mower belt on a craftsman 18.5 hp riding mower..Mower is model #917273639 need schematic on how to route the new belt

A:

I have included a set of illustrated instructions (See below). These should step you through the process of replacing the deck belt. here is a link to the owners manual for your tractor . If you need any more assistance, please feel free to submit more details.

Here is a link to order any parts you need. Sears Parts Direct .

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Mark T -
Sears Technician
July 18, 2010
Q:

Why won't the clutch in my riding mower engage?

A:

Lower the deck to the lowest position with the engine turned off. Lie down and look up at the drive belt and the idler pulleys. Get someone to push and release the clutch pedal as you watch. When the clutch is released the clutch return spring should pull the idler pulley against the belt and make the belt tight.

The spring might be broken, the idler pulley might need lubricating and is sticking. Something might be loose in the idler pulley linkage.

If the belt is turning the pulley on the transaxle and the mower is not moving, check the shift linkage and see if it is moving the shaft in the transaxle when you shift gears.

I think you will find your problem in this area. If you have more questions, send another email and give us the details of what you have found. We will be glad to help.

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Jimmy K -
Sears Technician
April 09, 2010