Small Engines (Lawn Mowers, etc.): JD L130 PTO problem, 4 ohms, volt source

Question
I have reviewed all the answers related to JD Mower L130 PTO clutch but cannot find any reference to my problem.  The PTO switch AM119139 had burned the contacts which power the PTO (the other contacts in the switch were OK). I installed a new switch and it lasted about 3 minutes. Tracing the wiring told me the switch goes directly to the PTO coil.  I checked resistance, and found 2.8 ohms across the two contacts, with the return contact grounded to the clutch case (should it be?).  I powered the clutch with an external 12 volt source and observed the current it took to keep it engaged.   The reading fluctuated between 1.5 up to 6 amps on my DVM.  I am of the opinion that something in the clutch coil is not normal.  Am I correct?  Thanks, Ed

Answer
Hello Ed:

Anything Below 4.0 OHMs is a Sign of a Bad Winding in the PTO Coil. The PTO has Shorted. Replace the PTO. You can View a Breakdown/IPL of the Engine and Mower at this Site Addy, http://jdpc.deere.com/jdpc/servlet/com.deere.u90490.partscatalog.view.servlets.H... and Enter the Model Numbers and Click Find. Then Select your Model from the Search Results Area. Then Select the Sectional File. Then Select the Section of the Mower you Wish to View Online. The Following is a Basic File I Made for Checking the PTO (Blade Engagement). The Most Common Cause for this Problem is the PTO Ground. A Quick Ground Check is to Use Another Wire and Ground the PTO at the Harness Connection Nearest the PTO. Be Careful and Do Not Ground the HOT Wire. Use a Multimeter and Locate the Ground Wire. Clean the PTO Ground and All the Connections for the PTO Wiring Harness. If you have an Ohmmeter, Disconnect the Wiring Harness from the Front of the Clutch and Check the Resistance of the Clutch. You should have around 4 or 5 OHMs. If at or near Zero (anything below 4 OHMs really), the Coil has Shorted. If you Hit a Snag or this Does Not Correct the Problem,  I am Here if You Require More Assistance. Hope this Helps. Let me Know What Happens, Please. May the All Mighty Bless You and Yours. Thanks.

Good Luck

Respectfully

John

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Respectfully

John