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Curtis B.
Curtis B., Technician
Category: Agriculture and Farm Equipment
Satisfied Customers: 28628
Experience:  Technican turned service manager on multiple lines of equipment and rental equipment.
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I have a JD735 that keeps blowing a 15 amp fuse that shuts

Customer Question

I have a JD735 that keeps blowing a 15 amp fuse that shuts everything off. I have installed a new brain but it still blows the 15 amp fuse after a little while of cutting grass.
Dave
Submitted: 1 year ago.
Category: Agriculture and Farm Equipment
Expert:  Curtis B. replied 1 year ago.
This is the fuse in the ignition module ? Have you checked the electric fuel pump? Locate it and when th fuse blows, see if the pump seems excessively hot. It would one item to check , another is the solenoid that releases the pto drive shaft. 15 amps is not much amp draw, so I doubt it is a direct short but a component. Does the alternator show to be charging the battery?
Expert:  Curtis B. replied 1 year ago.
Did you see my response?
Customer: replied 1 year ago.
Just went out to cut grass, while driving back to barn the tractor shut down so I checked fuel pump for excess heat it felt
normal. Put new fuse in and tried to start it and it blew the fuse. Unplugged the fuel pump and tried to start it and it blew
another fuse. After about 45 min. I towed the tractor back to barn put another fuse in it and it started.
Dave
P.S. when the tractor shut down the first time the blades were not on.
Expert:  Curtis B. replied 1 year ago.
http://jdpc.deere.com/pimages/MP26/MP26084________UN07NOV01.gif
Expert:  Curtis B. replied 1 year ago.
Could the fuel shutoff solenoid be overheating? It has to come on with the key. You can slip it back, unplug it and then check to see if fuse will blow.
Customer: replied 1 year ago.
Pulled out the fuel shutoff solenoid and tested it. The solenoid worked fine.
Dave
Expert:  Curtis B. replied 1 year ago.
Can you bypass the solenoid, or test it hot. We know it works cold.
Customer: replied 1 year ago.
bad weather the last few days, will try again when the rain stops
Dave
Expert:  Curtis B. replied 1 year ago.
OK> Thanks!