Brian,
Always respect and appreciate your input.
I have no background in mechanics, so had to look up ¡°idler pulley¡±. I do not read German, so looking at the parts diagram am not sure which pulley on my c3-31 is the idler pulley. There is indeed spring tension on one of the pulleys.
The isolated worn area on the belt led me to conclude that the belt was not under tension. I suppose this worn area could also be the result of the belt slipping off of one of the four pulleys due to misalignment, as you mentioned in an earlier post.
Thanks,
Steve
