DX33 No start, blown fuse, but not the second fuse

   / DX33 No start, blown fuse, but not the second fuse #1  

278broncos

New member
Joined
Jul 28, 2019
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5
Tractor
Kubota L3430
Trying to help a friend who has a Case DX33 which I understand to be basically the same as New Holland TC33. Was running fine previously then wouldn't start a few days ago - just cranked over. After googling and investigating interlocks, etc, I pulled the wire off of the fuel shut off solenoid and checked it. 12 volts while cranking or in run position. Hooked wire back up to solenoid - could hear/feel faint click when key was turned. Even ran a direct wire from battery to solenoid terminal and the sound/click was the same. Loosened an injector line and no fuel at all while cranking. Told him I need to do more research - seems like its not getting fuel but not sure why. Did not try the bleed screw but he didn't/hadn't run it anywhere near low on fuel.

Did more research and went back today to remove/test the fuel solenoid and make sure the plunger was moving properly. Also to check that the solenoid was getting 12 volts while still hooked up and under load. Checked solenoid voltage under load - 0 volts. Unhooked solenoid wire and checked it - 0 volts. Starting checking fuses. Second one up from the bottom was blown. Replaced the fuse with the solenoid wire still unhooked - blows instantly when the key is turned. He doesn't have any manuals or diagrams. Cant find online what this fuse (or any of them) are for.

Would like to approach this with some good info. Anyone got a diagram? Do I need to tell him to buy a factory service manual? I've read lots of info about the common 2nd fuse from the top blowing, the addition of a relay to solve that problem, etc. This seems to be a different problem.
 

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