Small Engines (Lawn Mowers, etc.): Murray Riding Lawn Mower Belt, crankshaft pulley, idler pulley

Question
How Do I Install A belt(12.5HP, Industral/commercial engine 40") belt size 37x62?  It's the belt that makes the blade rotate. Don't know the year but the model # is 40708x92A      Thanks, Pam

Answer
Hi Pam,

If the old belt is still on, then make notes and follow that.  If not, start with the crankshaft pulley on the engine and note it's rotation.  Follow the belt's path to each blade pulley, keeping the proper rotation.  The belt usually goes around a spring loaded idler pulley.  
It will only work one way, so you will eventually get it right.

Good Luck and let me know how you make out.
Michael