My Cub cadet Zero turn Z364 belt keeps coming off the mower deck (which turns 3 blades to cut grass) as soon as I pull up on the botton to engage blades belt pops off. Have replased all 3 belts, new spindal for mover deck.

SOURCE: Z force 48 in. cub Cadet mower starts but dies

Check the wires to the seat switch. Under the seat you should find 2 wires connected to the seat. Unplug them, and use a jumper on the end that goes into the body of the mower. Try it again, and if it works, replace your seat.

SOURCE: I need a diagram for the deck belt on my Cub Cadet

go to partstree.com put in your make &model #.then clickdeck assembly.hope this helps

SOURCE: CUB CADET ZERO TURN Z-FORCE 3-BLADE CONFIGURATION

Under each blade is one single nut holding each blade on. It is not left-hand thread and there is nothing special about it.
Standard thread - Standard hardware - Standard tools. (If memory serves, you need a 15/16" socket to remove these.)
There is no need to index or time the blades. They cannot hit together unless something is bent or damaged on your mower deck.

Hope this helps,
Dolf-

SOURCE: cub cadet zero trn rzt 50 mower deck will not come on

try checking the cable running to it

SOURCE: I hit a metal pipe with my cub cadet zero turn lawn mower today. Now it smokes under the deck when I engage the blades and it is not cutting the grass. Have I ruined my mower?

You'll need to look under the deck w/ the mower not running and see why the blades aren't turning. Most likely something is bent (maybe blade) and hitting something. The smoke is probably from the belt slipping and getting hot.