QuestionQUESTION: I have a John Deere L110 riding mower. It just recently started, every time I disengage the blades with the lever the deck belt slips off the front pulley (under the motor). It had the original black belt on it (about 3 years old) so I thought it might have just stretched, so I replaced it with a brand new JD belt, but it's still doing it.
It works fine while the belt/blades are engaged, tho. I tried adjusting the belt tension, as listed in the manual, but that looks like it only adjusts the engaged tension.
Help!
ANSWER: I recommend you also replace the front belt guard. It has been redesigned and it is very inexpensive. The part number is GX21577 list price 6.75.
After installing this belt guide remove the "L" shaped belt guide on the front of the mower deck.
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QUESTION: Thanks for the reply.
I looked at the JD parts catalog online, and the part number you listed looks exactly like what's already on my L110. It appears to be fine, and isn't bent or anything.
And there isn't a belt guide on front of the deck.
I think this may have started after I adjusted the deck height according the the manual: lower it onto 2x4's, adjust the lift brackets on the back of the deck, and then I had to tighten the nut that adjust the front of the deck's height, and that seems to pull the decks slightly forward as well as up.
AnswerOrder the new belt guide. They changed the guide but didn't change the picture.
Why do you think the belt is to loose? Deck belts are much looser than people think they should be. The loose belt protects the other deck components from catastrophic failure if you hit the water meter with a blade.
Reach up under the tractor and feel how tight the transmission belt is. The deck belt will be much looser than that.
The linkage you are talking about in the front only changes the level of the deck from front to rear (the front should be about 1/4" lower than the back) it does not effect belt tension.
