Why is PTO not working on lawn tractor?

SOURCE: My Cub cadet pto cluch bearing is froze up on my 2518 lawn tracto

A medium length extension (stuck through the grill), a swivel and an impact is all you need to remove the pulley with the frozen bearing. It's just a bolt, a washer, and a lock washer holding it on. You just need to remove the pulley to see if the bearing is stuck. Take the pulley to your local shop that can press bearings and you can be up and running for $20 dollars instead of $300. Here's a diagram I found on partstree:

http://www.partstree.com/parts/?lc=cub_cadet&mn=2518-48+Tractor&dn=0043700012

SOURCE: cub cadet 1641 lawn tractor won't start

Beings you can get to the solenoid I would check it first. There is a small post (not battery or starter), touch a jumper wire from battery to this post. Then with a test light check the wire to that post w/key in start position (remember you must be in regular start condition for this test). If no light, you can only go to each switch one at a time and bypass then try to start again. Not sure how many there are.

SOURCE: When I pull up on the PTO lever the blades don't

You have a belt adjustment problem, or a broken belt. Look at the area where the belts are, you will probably see problem immediately. Good Luck

SOURCE: Cub Cadet LT1042 PTO

you only need to remove the center bolt but make sure you see where the pins that keep it from spinning go this will help put it back togeather

SOURCE: my cub cadet tractor starts but the pto clutch stays engeged and i cant shut it off(pto)

The clutch has it's own brearings in it. You have to replace the hole PTO.Sometimes you can find a Aftermarket PTO clutch. There usually A little cheaper.