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Curtis B.
Curtis B., Technician
Category: Agriculture and Farm Equipment
Satisfied Customers: 3555
Experience:  Technican turned service manager on multiple lines of equipment and rental equipment.
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I have a 6640 with the pto engaues with an electric switch

Customer Question

i have a 6640 with the pto engaues with an electric switch some times it will start run about 4 r 5 seconds then go some times it wont run at all alt is putting out around 14 volts any suggestionus
Submitted: 2 years ago.
Category: Agriculture and Farm Equipment
Expert:  Curtis B. replied 2 years ago.
Is this a 6640 New Holland tractor? Do you have battery voltage to the pto solenoid? Th e solenoid in the rear housing , is what allows the pto clutch to apply, by opening the hydraulic passage to the pto clutch. Either the solenoid is not getting the voltage, due to bad harness or connections, or the valve that the solenoid works is sticking. Looks like to access the valve and solenoid, the top cover would have to come off!

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