Tensioning Belt on Grizzly Jointer?

[Back In The Saddle]

This is for a G0565, but I'm pretty sure most of their jointers use the same system.
Dug my jointer out of storage and was setting it up again and I cannot for the life of me remember how I was able to tension the belt on this thing. The instructions make it seem like the weight of the motor will do it or at least pushing it down by hand, but all it does is rest gently on the belt while the heavier side of the motor droops down and throws off the balance. Can't really wedge anything in there to pry the thing downward.
Anyone else experience this? Attached picture is the set up from the manual. The black bolts control horizontal movement, the other bolts control vertical movement.

 

[gungatim]

I have the G0490, 8" parallelogram jointer. your pic is the same pic as the manual I have for mine and the mounting is the same. the motor weight is all you need for tension. what is critical is to make sure the pulleys are aligned. set the alignment first horizontally, then roll the belt back on. it doesn't need to be crazy tight like an automotive belt. if you've ever used a contractor saw, you'll notice most of them just have the motor weight hanging out the back tensioning the belt.

if you still get vibration and the alignment is correct, consider a link belt.

 

[Sunosauno]

I have the G0490, 8" parallelogram jointer. your pic is the same pic as the manual I have for mine and the mounting is the same. the motor weight is all you need for tension. what is critical is to make sure the pulleys are aligned. set the alignment first horizontally, then roll the belt back on. it doesn't need to be crazy tight like an automotive belt. if you've ever used a contractor saw, you'll notice most of them just have the motor weight hanging out the back tensioning the belt.

if you still get vibration and the alignment is correct, consider a link belt.

+1

 

[exmaxima1]

...........

if you still get vibration and the alignment is correct, consider a link belt.

If either of the pulleys are small diameter, which is many times the case with jointers, the link belts do not transfer power very well. In that case, the cogged "power flex" belts are superior.