Belt diagram for john deere RX63

SOURCE: John Deere Lt 166 ride on mower

jd lt 166 has 5 different decks
3 of which have the same belt routing
1st the belt needs to be adjusted correctly to stop it from "slacking off"
then on most decks the belt is routed in between the 2 small idler pulleys and then to the engine pulley
so let me know the deck i.e. 36", 42 ", 46", 48"
different belt sizes also
kendo

SOURCE: need to replace belt on deck of john deere riding mower

does the belt on a 42" scotts lawnmower go behind the tenisoner or in front of it?

SOURCE: need a diagram on how to put a drive belt back on

It is a hard one to put on co look at the picture carefully there are two pulleys one that one side of the deck that are trickey.

SOURCE: How to install a drive belt on a john deere 175

Photos and description available at
http://outdoorpowerinfo.com/repairs/deere_175_drive_belt.asp

SOURCE: I have a John Deere LA140 Automatic riding lawn

http://manuals.deere.com/cceomview/OMGX22464_C8/Output/Index.html?tM=HO

That should help. It's on the John Deere website.