JD LT155 losing power going forward

[NoTTD]

Runs fine going backward. Began losing power going forward and now will only crawl. If it was a car, I'd say the clutch was out.

I'm only the shadiest of shade tree mechanics, so what should I look for?

Thanks in advance.

 

[mechanic mark]

Replace drive belt after removing deckhttp://www.amazon.com/s/ref=nb_sb_noss?url=search-alias%3Dlawngarden&field-keywords=drive+belt+for+john+deere+lt+155: Shop around after getting old belt off making sure part number matches using oem belt.

Service Mower Just tractor information.

How do I adjust the drive belt tension on a John Deere LT155 Don't log in just read.
LT155 belt diagram - MyTractorForum.com - The Friendliest Tractor Forum and Best Place for Tractor Information

https://www.google.com/webhp?source...TF-8#q=adjusting traction drive belt jd lt155 NIB John Deere Traction Drive Belt M126009 LT155 LT166 Engine to Transmission | eBay

 

[NoTTD]

Thanks for the input re the drive belt.

Can anyone point me to instructions or a video on replacement?