How do you adjust ground drive belt tension on a Sears LT 1000?

Hello
I have a sears Lt 1000 lawn tractor that is about 3 years old. The drive belt slips off the pulleys occasionally when shifting gears. This just started recently. Also, it appeared that the transmission was slipping but it was actually the belt - Belt dressing fixed things temporarily.
I have a replacement belt to put on. However, I was wondering if there were any adjustments that could, or should, be made to the belt tension.
I noticed that if the clutch pully travels any further when the clutch is let out, it will be up against a rod that runs along the frame. That seems to mean that even if there is an adjustment I don't have much to work with.
BTW I don't have any complaints about the belt life. I mow about 1 1/2 acres regularly, use the tractor for moving firewood and plow a 150' driveway (Yeah I should get a garden tractor next time...:)
anwyay, I'd appreciate any info on the ground drive belt tensioning.
thanks
chris
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Sounds like you have it pretty well covered. Belt stretched / wore - needs to be replaced. I would guess the new one will not jump off. But there may have been a "guard" somewhere near the drive pulley to prevent it from jumping. Look like anything missing ?

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.