It does have a fuse, check it first. but a friend just went thru this on a timecutter 50, bought new switch,no change put old one back in and checked everything finally they started moving all the wiring around and wiggling it and it started working and still is.
The PTO is wired into the safety circuit so you can not get off the mower while the blades are spinning and put your hand under the deck to clear out a blockage.
So yes you are most likely correct, it is not getting power because one of the saftey interlocks or the wires between them is open circuit.
On most mower the PTO power has to go through all the interlocks before it gets to the switch.
So you now need to get your magnifying glass out, fill the pipe, pop the deerstalker cap on and do some investigating while muttering "elementry deer Watson elementary ".
A circuit diagram will be very useful but they are hard to come by to prevent the types of idiots mentioned in the first line bypassing the safety interlocks.
Personally I believe in evolution so am happy to let idiots to kill them selves but the Government believes in creationism so they can legislate out stupidity.
It could be any number of things. It could be a blown fuse or sometimes the fuses get real dirty and lose contact and just need cleaning. You could possibly need to replace the blade control/PTO switch if it's bad. Check the safety switch under the seat, disconnect the plug and clean it out so your sure it makes good contact. If you have the manual there should be a schematics in the back to let you know how things are wired and where all the switches are located.
#6
Carscw
You can rule out a safety switch.
If it was a switch the mower would shut off when you fold the lap bars in to drive the mower or when you pull the pto switch.