Originally Posted by Gravely Commercial
You mentioned you adjusted the tensioner pulley, but another thing you could check is the spring next to the idler as it may need adjusting. There is a nut on the end of the I-bolt on the spring that may need more tension.
If you still have an issue after adjusting the tension on the spring, it may need realignment.
The spring is actually what I adjusted using the eye bolt to add tension to the tensioner pulley. I've mowed a few properties since and no problem yet. Even before I added tension to the spring, the spring was stretched enough that there was very slight spacing in between the coils so I'm not sure adding tension did much. What is the process to align the pulleys if it reoccurs?