Mads,this is from your manual.
Check line 8 under note. This states your engine (3200RPM) speed for proper PTO speed.
My earlier post was a 2011 dash.2012 is different. Sorry.
Greg
Using Rear and Mid Power-Take-Off (PTO)
IMPORTANT: Avoid damage! Use rear mounted equipment rated for 540 rpm. Do not operate mid or rear PTO over 540 RPM mark on tachometer.
NOTE: PTO operation for this machine is not intended to be used when the operator is off the seat. The safety interlock system will stop the engine and all implements if the PTO is operating and the operator leaves the seat.
Engaging the PTO
1. Sit on operator痴 seat.
2. Lock the park brake.
3. Move the 2-speed range lever to the N position.
NOTE: The starter will not crank if the PTO/RIO switch knob is in any engaged/on position.
If the operator leaves the seat with the engine running and the PTO engaged, the safety interlock system will stop the engine and all implements.
4. Start the engine.
5. Set engine speed to 1500 rpm or less.
MX46287
6. Move the PTO control lever (A) to desired operating position.
Position (B) - Mid PTO only.
Position (C) - Mid and Rear PTO
Position (D) - Rear PTO only.
7. Pull PTO/RIO switch knob up to the engaged/on position.
8. Adjust the hand throttle lever forward to the desired speed for the implement used.
NOTE: The tachometer PTO marker indicates a PTO speed at an engine speed of 3200 rpm.
Mid PTO speed will be 2100 rpm and rear PTO speed will be 540 rpm.
If PTO shuts off during use, turn off engine and push down to turn off PTO/RIO switch. Lock park brake. Allow engine to cool. Check coolant level and add coolant if necessary. Clean debris away from radiator cooling fins. Sit on seat, and start engine. Pull PTO/RIO switch up to the on position. If PTO still does not engage, see your local John Deere Dealer for service.
Greg