JD 4200 Compact PTO

[Douglas Markel]

Is this an earlier version of the 4200 where you have a lever you push forward or the later models where you have a pull knob that engages a solenoid. The PTO does have a PTO brake system so your PTO spline will only do maybe about a 1/4 rotation before stopping.

Too me it really sounds like it's electrical especially if the PTO has been working fine. If your tractor still moves without stalling then your seat safety switch is probably not the issue since it controls both PTO and movement safety interlocks but it can easily be tested by disconnecting it and using a paperclip to jump the two wires and bypass the seat switch to test. It is worth looking into.

I would check fuse F5 to make sure it is not blown and switch out relay K9 and or K5 with another to make sure the circuitry is operating properly. If it is still stalling out. Then move down to the S5 rear PTO switch and do a test on that. I can't remember exact location of it but I want to say it is on the right side just before the rear axle. Should be a two wire connector with red and orange wire. Disconnect the wire and get a multimeter and test resistance. With PTO disengaged the switch should show continuity and when engaged the switch should show open.

View attachment 764786

Thanks for the helpful information. Gonna check this out here shortly.

 

[easymike]

John Deere 4200 Subcompact tractor.
When I engage the PTO at the manufactured required RPM the PTO stalls the tractor engine. I have my post hole digger attached so I disconnected the PTO shaft and the same results where the tractor engine stalls out as I engage the PTO lever. I'm lost and need suggestions. Thanks, Doug

John Deere 4200 Subcompact tractor.
When I engage the PTO at the manufactured required RPM the PTO stalls the tractor engine. I have my post hole digger attached so I disconnected the PTO shaft and the same results where the tractor engine stalls out as I engage the PTO lever. I'm lost and need suggestions. Thanks, Doug

Is this an earlier version of the 4200 where you have a lever you push forward or the later models where you have a pull knob that engages a solenoid. The PTO does have a PTO brake system so your PTO spline will only do maybe about a 1/4 rotation before stopping.

Too me it really sounds like it's electrical especially if the PTO has been working fine. If your tractor still moves without stalling then your seat safety switch is probably not the issue since it controls both PTO and movement safety interlocks but it can easily be tested by disconnecting it and using a paperclip to jump the two wires and bypass the seat switch to test. It is worth looking into.

I would check fuse F5 to make sure it is not blown and switch out relay K9 and or K5 with another to make sure the circuitry is operating properly. If it is still stalling out. Then move down to the S5 rear PTO switch and do a test on that. I can't remember exact location of it but I want to say it is on the right side just before the rear axle. Should be a two wire connector with red and orange wire. Disconnect the wire and get a multimeter and test resistance. With PTO disengaged the switch should show continuity and when engaged the switch should show open.

View attachment 764786

John Deere 4200 Subcompact tractor.
When I engage the PTO at the manufactured required RPM the PTO stalls the tractor engine. I have my post hole digger attached so I disconnected the PTO shaft and the same results where the tractor engine stalls out as I engage the PTO lever. I'm lost and need suggestions. Thanks, Doug

Sounds like a safety switch issue.
Assume you r sitting on the seat when you engage the pto?
If your not the pto will kick out as the switch senses no weight when you engage it.
Would bypass the seat switch and the engage lever switch if equipped To see if it works .
My 955 Deere does this occasionally.
easymike

 

[mike peyerl]

John Deere 4200 Subcompact tractor.
When I engage the PTO at the manufactured required RPM the PTO stalls the tractor engine. I have my post hole digger attached so I disconnected the PTO shaft and the same results where the tractor engine stalls out as I engage the PTO lever. I'm lost and need suggestions. Thanks, Doug

It's probably got a seat safety switch are you sitting on the tractor when engaging