270H electric PTO and PTO light not working

[decvt79 5]

My 270H with power lift and 48” mulching deck has an issue with the PTO and PTO light not working.   I’ve been able to engage the PTO by connecting it directly to battery with a jumper.   I’ve checked the fuses and the 4 relays and have a new PTO switch and all test OK.   Any recommendations on what could be causing my electrical problem?   Before it stopped working completely, it would work for about 45 mins then shut down.  Sometimes it would renengage when I cycled the switch but no longer does that.

[Jayzauto 89]

I would check the resistance of the PTO Coil, as I've had to replace a few of those clutches.    Also check the air gap on the clutch.  They do wear and need peiodic adjustment. 

 

GLuck, Jay

[gwest_ca-(File Mod) 11,036]

You also have the NMIR system.

Hope I have the correct year. There is a diagram showing just the pto wiring

 

[decvt79 5]

14 minutes ago, gwest_ca said:

You also have the NMIR system.

Hope I have the correct year. There is a diagram showing just the pto wiring

It does have the no mow in reverse system and I suspect that could be the problem   Is there a way to test it?   
 Also, the PTO wire leads do not show power when the switch is pulled.  

 

[decvt79 5]

It does have the no mow in reverse system and I suspect that could be the problem  Is there a way to test it?   
 Also, the PTO wire leads do not show power when the switch is pulled so don’t suspect it is the PTO itself

[gwest_ca-(File Mod) 11,036]

Replaced the above diagrams with better copy and color so download again.

To check the NMIR module go here for instructions

 

[decvt79 5]

46 minutes ago, gwest_ca said:

Replaced the above diagrams with better copy and color so download again.

To check the NMIR module go here for instructions

Thank you for the information!