Tine engagement... all my remote/bar mounted controls are long gone... if I need to use transport mode, I flip a lever on the left side of the main tranny case, for engaged, or not. Actually, it's got notches on it's bracket.
Here's pics of mine. I'll try to do multiple shots.
This shows the roller on the ramp, in the idle, or No-go position. The belt is loose, here.
This shows the steel roller now positioned down off the ramp, which catches it, for the Go position. The springs on the goofy mechanism prevent it from popping back out. Well, they are supposed to. Mine now has extra springs added, and I have hung a weight on the end of the long control lever, to keep it from popping out. lol
If you notice, my belt adjustment ramp is way down as far as it will possibly go before the bolt comes off the bracket it sets on...
This shows the lower end of the long handled lever that lifts the engine, to tighten the belt, and the steel rod the engine mounting assembly rides up and down on.
Antiquated old design, but very repairable !
A wider profile belt should help you.
If you run too narrow of a belt, you must tighten it too much, so it is actually bearing on the smallest part of the bottom of the V. \_/
A proper sized belt will run on the long sides of the V, giving it more, and better friction bearing surface. |\\_//|
Hope that does you some good
rc