I had the very same thing happen to me last season. I tended up being a frozen spindle. Apparently I had not greased that spindle which caused the freeze up. I would get a grease gun and try lubricating each of the mower blade spindles now. It may free them up. Also, give the under area of the deck a good cleaning. Good luck.
pto switch energizes a vacuum solenoid which puts pressure on the pto belts
look for the engage switch that has a picture of blades
The STX-38 should have an electric clutch for the mower deck. The switch to engage it is on the right rear fender. It is a toggle switch. You will have to pull up on the switch and forward to engage the blades.
The positive battery cable connects directly to the starter. Depending on what type of vehicle it is, the solenoid is either on the starter or on the inner fender. Power for the solenoid comes from the ignition switch. You can run a wire to the solenoid to cause the starter to engage.
There's a yellow switch in the upper right hand portion of the dash. It's the PTO drive. Engage your clutch, pull up on the switch and move it forward, and that should start the blades spinning. If it fails to engage, it could be a bad switch or a bad battery.
It is a neutral switch.Starters on newer Isuzu will have a safety-switch installed, even for manual transmissions. The switch, inside the transmission or clutch, will disable the starter circuit until the vehicle is in the proper "mode" to engage the starter.For automatics, this means the starter won't engage unless the transmission is in Park or Neutral.For manuals, (stick-shifts) this means you must engage the clutch while turning the key. Until you engage the clutch, it will seem like the starter is dead.You can have a look at the related link for some trouble shooting pointers.The safety-switch(called a Mode switch for AT) is on the side of the transmission and the clutch switch is on a bracket in front of the clutch pedal. It is activated (switches on) once the clutch pedal is depressed.
Could be that the battery is dead or the starter is bad.
The clutch is wired with a hot from the battery at all times and requires a ground from the switch to engage. Check for a bad ground wire to the clutch or a bad ground connection.
If you are saying that the mower shuts off when you engage the blades (or put the lever for the blades in the up position) then the most common problem is a bad seat safety switch. This is located under the seat. It has two wires going to it.
The 1997 Nissan Maxima. Reverse solenoid switch is located on the starter. The solenoid switch is attached to the side of the starter.
the solenoid itself is probably bad, if not that probably the ignition switch I agree 100%, check the solenoid first then the switch.
Disengage blades, push down and/or lock it and turn the key. If nothing happens, the most common parts for failure are the key switch and the solenoid.