(answered) Q: Location of MF1533 SyncroShuttle PTO Control Solenoid Valve?

[Dmacleo]

yeah for sure check voltage, may need to have seat depressed to check though not sure if safety switch on seat would come into play.

 

[frighten102]

That's indeed the PTO solenoid right there. I would measure the voltage at that plug and see if it's a wiring issue or a bad solenoid.

I am getting voltage on the hot wire down there and when the PTO switch is on the return leg drops a couple of volts, which seems fine. However, I cannot confirm the solenoid is actually moving and opening the valve; I don't hear nor feel any movement, clicks, etc. I intend to remove the solenoid to confirm if it moves but unsure if any/how much hydraulic oil might come out of the solenoid port. Possibly messy.

One other way I can think of to test is to remove an end from 81, the PTO pipe, and see if the oil flows when the switch is engaged, which will most probably be messy

 

[Dmacleo]

you would have to have engine running to do last method listed, good way to get a lot of air into system I suspect.
could be wrong, not familiar with that model.
with the quality of hydro fluid you had in there I think there is a chance solenoid\valve assy got damaged.

 

[ptsg]

I am getting voltage on the hot wire down there and when the PTO switch is on the return leg drops a couple of volts, which seems fine. However, I cannot confirm the solenoid is actually moving and opening the valve; I don't hear nor feel any movement, clicks, etc. I intend to remove the solenoid to confirm if it moves but unsure if any/how much hydraulic oil might come out of the solenoid port. Possibly messy.

One other way I can think of to test is to remove an end from 81, the PTO pipe, and see if the oil flows when the switch is engaged, which will most probably be messy

Can't quite tell from the picture but usually, you can remove the solenoid without pulling the cartridge valve out.

As an example, I pulled some random pictures on the internet. This is the cartridge valve:

This is the solenoid that slides over that shaft on the upper picture: