The decking V Belt broke. I replaced it with a new one and now that one is tearing and fell off after about 10 minutes of mowing. I checked the diagram and the belt is on the pulleys correctly. Just wondering.......is the pulley in the very front supposed to turn easily? Mine isnt.
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Re: Deck belt keeps tearing up then falling off
If it's an idler pulley, where the belt changes direction from the engine - yes it should turn freely. If it's a double pulley where the drive pulley from the engine connects with the deck/blade pulley, then it it's not going to turn totally free because of the blade pulleys connected to it. But in all cases, none of the pulleys should be seized. Try using WD40 or PB Blaster on the pulley bearing surface to loosen it up - or a new pulley...
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Look here then when you put in your Model number look under ATTACHMENTS for a parts diagram showing the Belt layout
For the deck,they do move it allows them to cut evenly on uneven surfaces.Lower the deck and inspect everything on top of the deck.These mowers have several arms to hold it in place.Make sure none are disconnected,or have broken clips.Make sure to wiggle each of the arms,some times they can fall in a position so that it looks like that is where it belongs.
As for the drive belt.Just keep the mower out of the weather as best as you can.Feel the pulleys for burs,and make sure there is no debris hanging that may be scrapping the belt.
The spring is connect to a stud on the front side of the deck in front of the right pully as you look at the mower. The rear of the spring is connected to an brace at the back of the deck behind the same pully. This spring assit in keeping the V-Belt tight when the blades are engaged. Fault stud broke needed replacement.
do you remember the routing of the belt? there should be a diagram on the deck somewhere - best thing to do is rout the belt while the deck is lowered, leaving the loop at the front to put around drive pully on bottom of engine. once that is all hooked up, there are deck adjusters on either side of the deck - that you can adjust to relieve some of the tension on the belt - turn the adjusters clockwise to tighten, counterclockwise to loosen - let me know if this helps or if u need more info - i have a 10 year old 42" deck tractor out in my barn and if need be, tomorrow i will walk u through - online how to adjust the deck