We need the belt pattern - John Deere D140 22HP V-Twin Foot Pedal Hydrostatic 48 Riding Lawn Mower

I am having difficulty in understanding what you are asking
are you asking why it needs a patterned belt?
or how to fit? or will any belt do? comment with what it is that you want to know

You need to be a little more specific, if you put your info into the search engine (ie: Google) you should be able to find it. Here is a place that has a few you can check out though. http://www.justautorepair.com/multimedia/category/1-belts-diagrams

A serpentine belt (also known as a multi-vee or multi-rib belt) is a single, continuous belt used to drive multiple peripheral devices in an automotive. ---------------------------------------------------------------------------
Car Diagnostic Tools

Pictures are better than words. Visit the following site for the shop manual. http://lainefamily.com/images/Honda4514HShopManual.pdf

Locate the "belt-tensioner" Remove the old belt by pulling the belt-tensioner to remove the pressure on the belt. Reinstall a new belt. If needed, the belt pattern can be found on the frame next to your radiator (a sticker with a belt pattern)

The serpentine belt pattern for 2000 Audi A6 2.7 TDI

Here ya go, hope it's on time.

should have pic of pattern on hood or rad support if not all groved wheels inside of belt and all smooth wheels outside belt usually when almost done u should only use tensionor to finish putting on belt at the alternator worst comes to worst go to used car dealer n fake looking at car like yours and get pattern

Did you check under the hood? There should be a decal w/ the proper routing of the belt somewhere in or around the engine compartment. If u can't find it, let me know, I'll try to get more info. countrycurt0