My zero turn keeps blowing the fuse when i engage it

Likely there's an electrical short to chassis frame. You'll need to isolate the multiple circuits that pass through the PTO switch to identify the offending circuit and test for continuity to battery negative.

Wiring diagrams are included in the parts lists from the Bobcat website https://www.bobcatpartsonline.com

It is a known issue and mentioned here

https://www.google.com/search?q=Craftsman+zero+turn+z6400+blows+fuse+when+blades+engaged

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Bad wiring to pto or electric coil in clutch is burn't.

Sounds like you have either a dead short causing the fuse to blow, or something is binding and causing the fuse to blow. Check the mechanical end first, does everything move freely? Then check for exposed wires or sparks when engaging the PTO.

bad bearings replacethem

There is a fault in the blade engagement circuit. Using a multimeter or test lamp, check the switch, solenoid and wiring. Work logically and patiently and you will find the faulty component (tip - start with the solenoid) Good luck

If a fuse keeps blowing it means there is an intermittent short in the wiring or a faulty PTO clutch. Either way you need to fix it, not just keep replacing the fuse. Take it to an authorised repairer and tell them what is happening.

Check for frayed wires on the safety switch for the blade engagement

could be the safety switch for the pedal

Check the all wiring from the engage blade button back to the electric clutch for worn spots that may be grounding out on the frame.