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#31 KennyP ONLINE  

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Posted April 07, 2015 - 09:51 AM

I've had it a few years!



#32 KennyP ONLINE  

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Posted April 07, 2015 - 10:36 AM

Got to test again. Had to use the 20V setting. I put the readings on the wiring diagram. I cannot get to the glow plug switch as it has spade connectors covered with heat shrink. But I think that is where some of the issue lies.

Toro Wiring Test1.JPG

 

I think it is time to pull the instrument panel and clean connections.

2015-04-07 10.40.37.jpg


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#33 WNYTractorTinkerer ONLINE  

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Posted April 07, 2015 - 12:24 PM

Unplug and clean those connections between the switch and the Glow plugs and the drop will disappear..  A little dielectric grease will help keep things clean & connected as well.  



#34 KennyP ONLINE  

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Posted April 07, 2015 - 01:06 PM

Unplug and clean those connections between the switch and the Glow plugs and the drop will disappear..  A little dielectric grease will help keep things clean & connected as well.  

Now you tell me! I just put it back together! Getting ready to retest.


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#35 KennyP ONLINE  

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Posted April 07, 2015 - 01:46 PM

After all that, I still have 2.29V at the glow plugs. Drop is coming after the indicator, which is one of those that heats up and turns red. I have 0.7V coming into it.



#36 WNYTractorTinkerer ONLINE  

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Posted April 07, 2015 - 02:01 PM

After all that, I still have 2.29V at the glow plugs. Drop is coming after the indicator, which is one of those that heats up and turns red. I have 0.7V coming into it.

take the indicator out of the circuit or hook the two wires together there.  If the drop is .7 again everything as as good as it can be..



#37 KennyP ONLINE  

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Posted April 07, 2015 - 02:22 PM

Gotta take the dash panel back down to get to it. It worked this morning before cleaning everything. Think I'll see how it does now.



#38 olcowhand ONLINE  

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Posted April 07, 2015 - 03:10 PM

On my John Deere 430 the glow timing box went bad, so I just put a fused momentary switch direct to the glow plugs.  Works like a charm.


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#39 ducky ONLINE  

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Posted April 10, 2015 - 11:14 PM

Kenny

The .490 drop between B+ and the ignition switch is a bit High.  Would like to see about .050 Volt drop there.  Check across the circuit breaker.  That my be it.

 

The additional .500 volt drop at the glow plug indicator is high as well.  Again .010 would be ok.  The ignition switch or the glows switch may be the problem there if connection are clean.  The drop across the switches should be less than .010 volt.  Check the wires individually as well because some of the wire strands may be broken under the insulation.

 

The way the indicator is put in the circuit it will cause a volt drop in the circuit because it is a resistance.  Measure the drop across it and subtract it of your total reading of 2.5 to eliminate it of the circuit.  Be aware that the indicator will increase in resistance as it heats up which will increase the drop across it.  I believe this type of indicator is also used to protect the plug from excessive current.

 

Eliminate the first two drops and check the drops B+ to the indicator + and from indicator - the the + side of the plugs, add the two together and see if you can get that below .500 volt.


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#40 KennyP ONLINE  

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Posted April 11, 2015 - 04:44 AM

Thanks, Don! I'll get it back out here soon and see what it does.






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