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Tractor Talk Discussion Forum

JD 140 won't start

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Jeff

07-31-2003 09:54:32




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I am reposting my problem from a few weeks ago. HELP!!! I cannot get the starter to engage on my 140. I got the service manual and went over all connections, checked the ignition, and cleaned all connections. I tested the solenoid out of the tractor and when engaged, it closes the circuit across the big terminals (solenoid also works fine without the starter wire hooked up). I bought a new starter and it won't engage either. With the starter off the tractor, I get 12 volts at the starter wire when I turn the key to start. If I connect the starter, I get 0 volts at the starter when the key is at the start position. Sometimes I hear the solenoid click, but most of the time it does not. The battery is 3 yrs old, but shows a full charge (I have charged it in this process also). I also tried jumping it from my truck and get the same problem. The safety switches for the PTO and hydrostaic lever are bypassed (which has always worked before this) and the bypass wire shows continuity from the ignition switch to the solenoid. Could the circuit breaker be bad? It shows 0 ohms (shorted) which should be correct, right? Could the ammeter be bad? It also has continuity through it. I am running out of ideas. Any help would be GREATLY APPRECIATED! Thanks to Ray for sending me the wiring diagram before I received my manual.

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LH

08-01-2003 18:10:37




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 Re: JD 140 won't start in reply to Jeff, 07-31-2003 09:54:32  
Can you turn the engine over by hand without using the starter? sounds to me like either the engine is locked up or something is binding on the starter preventing it form turning the engine over. with everything else disconnected you should be able to jump directly to the hot post on your starter and get it to turn over, have the other jumper grounded to the mowers engine. That bypasses the solenoid and all other safety switches

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davidval

07-31-2003 22:49:14




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 Re: JD 140 won't start in reply to Jeff, 07-31-2003 09:54:32  
do not engage meant the starter works but not rotating the motor or sarter is 'dead'?
david



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Dennis

07-31-2003 13:20:43




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 Re: JD 140 won't start in reply to Jeff, 07-31-2003 09:54:32  
Jeff,

You should put this very same post on the John Deere discussion board just in case someone with some '140' expertise frequents that board but not this one.

Dennis



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arthur

07-31-2003 18:03:53




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 Re: Re: JD 140 won't start in reply to Dennis, 07-31-2003 13:20:43  
remove the ground wire from the battery and franr of tractor clean the frameand battery terminal and cable ends and reinstall. if still no good do the outher cableif still nogood take a set of jumper cables from the battery to the starter housing and terminal if this OK then you have a bad connection from the starter to engine or from the engine to frame rusty parts dont make good connections even at the sonoid. LOL

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