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Ford Tractors Discussion Forum
Order Ford 4610 Parts Online

Ford 4610 Key switch or saftey switch problem

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Author  [Modern View]

05-21-2012 13:55:51

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Not sure if my keyswitch is going bad. I think its the saftey switch on the high low lever. I have sometimes had to hold the key switch over and move the high/low lever back and forth for it to start. Is there away to bypass the saftey switch in the gearshift or how do you repair it? Thanks

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david G

05-22-2012 19:43:28

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 Re: Ford 4610 Key switch or saftey switch problem in reply to david1, 05-21-2012 13:55:51  
I might fix mine if it is not too tough.

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05-22-2012 06:58:44

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 Re: Ford 4610 Key switch or saftey switch problem in reply to david1, 05-21-2012 13:55:51  
I've jumpered around every seat switch I got, but the I want the neutral safety switch(es) doing their job...

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david G

05-21-2012 19:45:20

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 Re: Ford 4610 Key switch or saftey switch problem in reply to david1, 05-21-2012 13:55:51  
My 6610 has done that for years.

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05-21-2012 18:08:43

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 Re: Ford 4610 Key switch or saftey switch problem in reply to david1, 05-21-2012 13:55:51  
Just order the switch appropriate to the transmission/model year of your tractor and replace it. They're not bad to change. Just remove the top cover of the transmission and follow the wires to the switch. Unhook the wires and unscrew the switch... screw the new one in and rehook the wires...
It's easy enough to bypass if needed... but right now it still kinda works... so get a new switch and change it. That will take about the same amount of time as rigging something that could get you killed.


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Greg Wolodkin

05-21-2012 16:04:11

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 Re: Ford 4610 Key switch or saftey switch problem in reply to lee stoker, 05-21-2012 13:55:51  
Quoting Removed, click Modern View to see

I don't know the 4610 as well but I'm assuming it's pretty similar to the 4000 with respect to the neutral safety switch. Double-check the parts manuals online if this doesn't make sense or post back. Should be a pair of wires coming out of the top of the shifter plate on top of the transmission. Those wires make their way up under the cowl, and there's a pair of bullet connectors in between.

As a quick test, you could unhook those connectors and put an ohmmeter on the wires heading into the transmission. If the hi-lo shifter is in neutral, you should have continuity. It's it not in neutral it should be an open circuit.

It's most likely the switch that is bad. That switch is easily accessible by removing the 10 or so bolts on the shifter cover. Put both shifters in neutral, remove the bolts, lift the cover part way to get a look at the switch. I've found it's easiest to disconnect the wires at the switch so that you can remove the shift cover completely and set it aside.

Then you can check continuity on the wires, and also on the switch itself. (Since the hi-lo was in neutral, you should have continuity on the switch at this point.)
I think from most posts here it's typical that the switch goes bad. You can get a new one from Cole-Hersee for $10-15 bucks or so. I've seen them for as much as $30. The last one I bought was no longer made in USA.. made in Mexico but still looked pretty well made. Time will tell. Might want to get a new gasket for the shifter cover too depending on the shape yours is in.

If you do decide to jumper things, keep in mind that although a car will jump and stall if you try to start it in gear, the tractor will simply start up and drive away. Plenty of torque and not much will stop it. I'll let your imagination and the posts of others drive that point home. Just be careful. I've always driven a clutch and always make sure I'm in neutral with the clutch in before turning the key. Others might not be thinking along those lines, and the cost of a mistake is high, so keep those folks in mind.

Hope this helps -


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05-21-2012 14:12:31

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 Re: Ford 4610 Key switch or saftey switch problem in reply to david1, 05-21-2012 13:55:51  
yes and you will get run-over by doing so.. fix the safety switch.

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