QuestionQUESTION: John,
I have an older (1990) Toro 44" Pro-Line mower, Model 30112 with a Kawasaki FB460V-ES08 engine. Until recently, for the blades to engage, I'd have to throttle it to at least 60-70 percent. A few days ago, it refused to engage the blades at all. They WILL engage when I unplug the clutch and jumper it with a 12V car battery, even at very low throttle. I have 33 - 33.5 volts AC coming from the stator wires at the connection/plug before it goes to the ignition switch / blade toggle switch. When I toggle the blade clutch to the on position, the voltage from the stator drops to 4 volts AC. Where do I look to have the blades work again. Looks like I have 3 choices somehow...rectifier, blade clutch switch and the clutch itself ($250 )I'd hate to think I have to strap a Die-Hard auto battery on the mower!
Thank you in advance!
Phil
ANSWER: Hello Phil:
You can View a Breakdown/IPL of the Mower at this Site Addy, https://lookup3.toro.com/partdex/default.cfm and Select Start Parts Viewer. Now Enter the Model Numbers. Now Select View Assembly Drawings. 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 Carefull 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, 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
PS: I am Allowed to Answer 10 Questions a Day. If you See I am Maxxed Out, then Try Submitting your Question at or Just After 8pm EST (US). My New Day Starts then. Thanks.
Respectfully
John
---------- FOLLOW-UP ----------
QUESTION: John,
I checked the ground (added a wire) to no avail. Put the ohm meter on the clutch and it's 1.3 - 1.4 ohms. Is there anything I can do to help it out or would you guess is it shorted out? A final question, why would it work with the automobile battery hooked up? Is it that much more powerful in terms of amperage?
Thank you again. This forum is a great source of information.
Enjoy the weekend.
Phil
AnswerHello Again Phil:
An Automotive Battery is Usually 550CCA (Min Amps)Compared to a Mower Battery at 225CCA (Max Amps). From your Description of the Ohm Readings, I Suggest you Replace the PTO Unit. Usually Any Ohms reading Below 3 Requires Replacing the PTO Unit. When you engage the PTO, Does the Battery Voltage Drop Below 10.5 VDC? 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
PS: I am Allowed to Answer 10 Questions a Day. If you See I am Maxxed Out, then Try Submitting your Question at or Just After 8pm EST (US). My New Day Starts then. Thanks.
Respectfully
John
