Lineman,
OK...no problems...welcome to the troubleshooting side of the forum!!!
On the forum you'll find a sticky (top of the page) on how to change the belt. Its mostly removing the seats, the console, the access panel and the clutch housing cover. Then use a 6" socket extension to pry open the driven clutch sheaves (yeah the driven clutch is the big one) then walk the belt off the driven clutch and it will lift off the drive clutch.
Inspect the belt for shiny spots (got hot at that spot), look for tears on the sides, yes the belt it wider on the top than on the bottom. The sides are the surfaces that ride on the sheaves and thats where damage occurs. If there are any shiny spots, say a couple of inches long, the belt will squeal or whine.
If the belt is shredded or starting to shred, its got kevlar webbing inside the rubber belt. The machine will act jumpy and make all kinds of noises.
If you find either, time for a new belt and if you can afford it, carry a spare.
Keeping the air intake duct clean is absolutely critical. In fact its probaly the most important thing to keep an eye on!!! After failing a $6500 Holz Stage III motor due to dirt inhalation I've become a fanatic. I purchased a 4UCam video probe so that I can inspect the air duct from the outlet of the filter canister, through the throttle body and down to the seats of the intake valves. Should be nice clean aluminum surfaces in the head and throttle body. If there is "mud" of dust and gasoline the top end of the motor has been damaged. If one keeps riding the cylinder damage will continue until all the oil is burned and the motor fails. In my case the exhaust never showed smoke, blue or white. I just ran fine, then started acting like it was running on one cylinder and then I heard the death rattle as the crank failed!!! So always carry a spare filter, at least in the truck. If you're in dusty conditios, take the filter out each evening and tap the dust out. The inside of paper filters should be pure white, if there is any dust, pitch it. You can probably tap the dust out 3 or 4 times and then change the filter. I installed a filter monitor like my diesel trucks have. Sure enough after 3 or 4 cleanings the restriction starts to rise...new filter time.
What else can we help with?
Pirate