Return to the Lawn Mowers Forum | Post a Follow-Up

 o
MTD Riding mower belt gets hot

Posted by cliffg AL (My Page) on
Tue, May 19, 09 at 8:08

I purchased a MTD riding mower with a 20HP Tecumseh engine and a 46 inch cutting deck. It runs great as far as the engine goes. However, I was using it about a week ago, on some tall grass, and some smoke started coming out from under it. Ever since then when I use it the belt gets hot and smoke comes out from underneath it. Also, if I throttle up the belt will pop off. It is easy to put back on, but I'm not sure what the underlying problem is. Any Ideas?

Also, there is a spring that i hanging off the back of the cutting deck. It is attached to a lever that presses up against a belt. I assume the spring puts pressure on it. I don't know where this is supposed to be attached to.There is a bolt hanging off the back of the transmission where another spring is attached, I placed it there, and it was tight as long as the deck was disengaged, but would pop back off when I engage the deck. Model is 13A7668H352, Serial is 1D253B70126


Follow-Up Postings:

 o
RE: MTD Riding mower belt gets hot

My guess is that one or more of the pulleys on the mower deck is not moving. The smoke is from the belt rubbing on a pulley that is not moving or rubbing on some other object that is now in the belt's path. since the belt pops off, leave it off, turn off the engine to prevent accidents, then spin each of the pulleys on the mower deck by hand. They should all spin freely. Make sure that the deck is not clogged with grass or other debris. The springs that are hanging off are a problem as well. The belt must be routed properly and tensioned with the springs or it will fail quickly! Find a diagram or go see one at the store to see how the belt is routed and where those springs go.


 o
RE: MTD Riding mower belt gets hot

I checked the pulleys, and it feels like the deck pulley may be stuck. I plan to take the deck off this weekend and take a look at it. Thanks for the tip!


 o
RE: MTD Riding mower belt gets hot

I have a 10 year old MTD 17HP rider and when I disengage the deck, the deck belt starts to smoke and eventually comes off. All the pulleys turn and it cuts like a brand new one when I engage the deck. The belt actually looks loose when not engaged. Idea's???


 o
RE: MTD Riding mower belt gets hot

The belt is suppost to be lose when the deck is off check to make sure the to rods are coming down from the frame and on the sides of the pully that hold the belt off of the pully when deck is off i replaced the screws on mine and mine no longer burns like it used to


 o Post a Follow-Up

Please Note: Only registered members are able to post messages to this forum.

    If you are a member, please log in.

    If you aren't yet a member, join now!


Return to the Lawn Mowers Forum

Information about Posting

  • You must be logged in to post a message. Once you are logged in, a posting window will appear at the bottom of the messages. If you are not a member, please register for an account.
  • Please review our Rules of Play before posting.
  • Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review your post, make changes and upload photos.
  • After posting your message, you may need to refresh the forum page in order to see it.
  • Before posting copyrighted material, please read about Copyright and Fair Use.
  • We have a strict no-advertising policy!
  • If you would like to practice posting or uploading photos, please visit our Test forum.
  • If you need assistance, please Contact Us and we will be happy to help.


Learn more about in-text links on this page here