Swisher 36 cut model no zt1436b help with belt

http://www.searspartsdirect.com/swisher-riding-mower-tractor-parts/model-T11544/3291/1500230.html?SID=PSx20071217x00001a


SWISHER 44 FINISH CUT TRAILMOWER Parts Model T11544 Sears PartsDirect

SWISHER 44 Finish Cut Trailmower Tension assembly belt bra Parts Model...

If you look at the diagram ( zoom in) part #94 , idler spring, is what puts tension on the belt.

Changing the belt on the swisher 44' rough cut - mine is a model RTB134412v. You have to remove the belt guard (4 bolts) and then the 6 bolts holding the engine on to the deck. Lift (or tilt) the engine up and loop the 1/2"x50" belt (I got a husky replacement belt at tractor supply) through the wire belt guides and around the engine belt drive. Then loop the belt around the larger blade drive. It takes about 30 mins or so. Hope that helps.

Need belt diagram for swisher 52" riding mower

it shows a 50in belt

http://www.swisherinc.com/media/documents/ONZTR42_REV_02_01_2002.pdf

I have been told if the parking brake is engaged and you try to drive the mower it will instantly put a burn spot on the belt. I hope this helps.

Yes It would. The belt doesn't just wear it slackens also. It will probably turn the blades when not under load but as soon at it attempts to cut grass there is not enough grip.
Replace the belts first and it should be fine.

Regards

Marc