John Deere F510 starting problem
- Thread starter Jack M
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EngineMan
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I have also been looking and can't find one anywhere, this is from a repair PDF file that I have.......
When the operator rises from the seat, the seat switch contacts open, causing current to stop flowing to the time delay IC. If the operator does not return
to the seat within approximately one second, the time delay IC stops current flow to transistor. The transistor will “switch off”, causing current through
relay coil to stop flowing and de-energize the coil. With the coil no longer energized, relay contacts will open. Current stops flowing to the ignition coil, thus stopping the engine.
NOTE: Driving the machine over rough terrain can cause the seat switch contacts to momentarily open and close. When this happens, the time delay IC allows the engine to operate without interruption.
If the operator returns to the seat within approximately one second, current flow is re-established to the time delay IC before it has a chance to “time out” and stop current flow to the transistor. Current flow is NOT interrupted to the ignition coil and the engine is allowed to continue operating.
So if you haven't already done so, check out the seat switch, making sure it works all the time.....
When the operator rises from the seat, the seat switch contacts open, causing current to stop flowing to the time delay IC. If the operator does not return
to the seat within approximately one second, the time delay IC stops current flow to transistor. The transistor will “switch off”, causing current through
relay coil to stop flowing and de-energize the coil. With the coil no longer energized, relay contacts will open. Current stops flowing to the ignition coil, thus stopping the engine.
NOTE: Driving the machine over rough terrain can cause the seat switch contacts to momentarily open and close. When this happens, the time delay IC allows the engine to operate without interruption.
If the operator returns to the seat within approximately one second, current flow is re-established to the time delay IC before it has a chance to “time out” and stop current flow to the transistor. Current flow is NOT interrupted to the ignition coil and the engine is allowed to continue operating.
So if you haven't already done so, check out the seat switch, making sure it works all the time.....
Hmm not the seat switch, it’s no so taking the wire off the seat it will still be able to start, when the seat switch is active it will ground the igniter causing the engine to turn off, like the pto switch also will. Anyway I just maked my own test wiring just for testing, after that the original will be put back on again.
I took a wire from the ignition coil terminal to the igniter terminal and from there a wire with a switch to ground so I will be able to turn of the engine by grounding. Anyway I got a spark and the engine starts but again only when cold. But I maybe found the problem, by doing the rewiring I had to remove the igniter from the engine and ground the case somewhere else causing the igniter not to get so hot while no attached to the engine cover, the engine can not start after 10 minuets and not one or two hours, and by thinking logic then I have isolated the ignition circuit only with the coil, spark plug and igniter, spark plug and coil are brand new so could it be the igniter with that in mind ?
I took a wire from the ignition coil terminal to the igniter terminal and from there a wire with a switch to ground so I will be able to turn of the engine by grounding. Anyway I got a spark and the engine starts but again only when cold. But I maybe found the problem, by doing the rewiring I had to remove the igniter from the engine and ground the case somewhere else causing the igniter not to get so hot while no attached to the engine cover, the engine can not start after 10 minuets and not one or two hours, and by thinking logic then I have isolated the ignition circuit only with the coil, spark plug and igniter, spark plug and coil are brand new so could it be the igniter with that in mind ?
EngineMan
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"so could it be the igniter with that in mind ? "
Try using some Fault Detector Freezer Spray......."Applying to electronic components will lower the temperature of the component. Any faulty overheating component will cool and return to correct operation, thus indicating the faulty component."
I am going through the files that I have with John Deere, because I have read you can use other diagnosis of other models, but am on other forum's so I come in here now and then at times.
"Try using some Fault Detector Freezer Spray......."Applying to electronic components will lower the temperature of the component. Any faulty overheating component will cool and return to correct operation, thus indicating the faulty component."
I am going through the files that I have with John Deere, because I have read you can use other diagnosis of other models, but am on other forum's so I come in here now and then at times.