Marcus:
Are having trouble with the routing of the belt from the engine to the deck, or the deck belt?
If it's the deck, on the 47 model deck, it is like this decal shows:
On the engine to deck belt, do you have the older PTO lever on the dash (large yellow knob) or the electric clutch model that just uses a switch? I am only familiar with the older style. I had a 214 for 10 years, but sold it 15 years ago when I got my 855, but I will try to go through the steps by memory as best that I can:
Loosen the T handle that sticks out of the front of the black front plate. The spring might come unhooked. Remember that it will have to be re-attached before tightening.
If you had a snow blower mounted, disregard the outer pulley which is only used for that implement. The belt groove you want is on the large, cast iron PTO cone portion of the pto clutch. Swing the little tin keeper out of the way so that you get the large steel bracket to pop off. You need to do this so that you can get the belt over the pto cone. Dangle the belt down and replace the pressure plate steel bracket and tin keeper to retain the cone.
The belt runs reward through the two pulleys that Bob shows. The backside of the belt runs against the flat idler pulley, and the tapered side goes on the Vee idler pulley. Continue to route the belt to the deck and place it on the drive sheave. Check on the idlers that the belt is on the pulley and under the guide (#9 in Bob's illustration). A lot of folks run the belt over that guide and it will chew up a new belt in a matter of minutes.
Now go to the front and turn the T handle tight as you can. This will pull on the spring and the idler pivot bracket and that will keep the belt in tension when the deck moves up and down. Now move the pto lever forward and see that everything moves free and correct and then disengage it. It should be tough to engage (they added a stiffer spring during a factory recall) and pop right out when you snap it back.
Now you can try it out. Run it at idle for a bit and listen and sniff, in case you ran that belt over the idle guide!
If you are having problems attaching the deck, I can cover that as well.