Hi,
Yes I do, I had the very same problem, black drive belt broke, went to the store for a new one, tryed to fit it back on & at first it appeared too slack, the way to get the belt to tighten up is as follows:
Take the screws etc & back plate off the dryer
Slide the back plate & drum ( which are still connected ) out so you can place the new drive belt around the drum
You need to pull the motor down & to your left which allows even more slack on the belt. ( The Motor Is On A Steel Spring Which Allows It To Move From The Left To The Right ), Its a tricky job you are trying to keep the belt on the drum while pulling the the motor over to give you the slack you need to get the belt on the fly wheel & drive arm the correct way, I was able to fit the drive belt to the drive arm & fly wheel 1st & then pulled the motor to my left as hard as it would go, & then with my left hand I pulled the belt onto the drum, I was a nighmare & I cut my arm doing so I suggest having someone to help you as the metal is sharp in there !
The trick to getting the belt to tighten up is in the way you wrap the belt around the fly wheel & motor arm grooves.
I have uploaded two images of the correct way the new belt should be fitted to my Yahoo account, & as soon as the folder is made public you can download the diagrams
Also make sure the machine is pluged out, my Dad got a shock while trying to make out which way the belt goes on the motor he he !
Good luck
N.Kelly
email me if you still have trouble
http://uk.briefcase.yahoo.com/nkellyn
N. Kelly, May 2006