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Go to http://outdoorpowerinfo.com/repairs/deere_stx38_gear_drive_belt.asp for pictures and descriptions of installation of drive belt and deck belt for John Deere STX38 Tractor with black mower deck.
How do you replace a mower deck belt on a stx38 hydro
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Check your idlers on the deck as they are the most common culprit.
bladebelt diagram for john deere stx38 yellow deck
The belt is a M74747 which is 1/2" x 105"
the drive belt is 76 length 1.5 width
The belt from the mower engine to the transmission would be called a drive belt.
Where can we find a simplicity riding mower model 284707 belt diagram
It depends on the size of the drive pulley to the cutter pulley. The shorter the belt is the less slack is caused and therefore the more traction is maintained between the belt and pulleys
The belt length for a Craftsman tractor LT 4000 42 is 96 inches by three-quarter inch. This is assuming the same 42 inch mower deck is still in use.
We will need some more details... Is it the drive belt or the belt for the blades?it is the drive belt for Murray lawn mower model 38618x92a