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bo dawg

D -160 cooling fan

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Where does the thermostat attach to for cooling fan?

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around a manifold pipe

 

fan.JPG

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That thermal switch looks just like a fan switch that we use in refrigeration. Definitely clamps on a pipe. That's what the "valley" on the switch is for. 

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Posted (edited)

Doesn’t matter which manifold pipe?

 

Edited by bo dawg

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I doubt it would make a material difference but you could use the one in the picture..or what ever one it is easiest to get on....

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After tracing down the wires to it, my first thought was it was wired up wrong, cause someone has done some splicing here and there in a poor way, It was hooked up to the light switch.

But after looking at the diagram it does show it being hooked up correctly.

Now for me that seems odd, I would thought there would be a separate switch for it or something cause I'm not one to run the tractor during the day with the lights on. But I guess on this D the light switch will stay in on position if I want the fan to kick on when needed.

Or maybe I will install a separate switch or could it be wired up direct?

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You wire it to the feed side of the light switch, it is hot when ever the key is in run.  The temp sensor will turn the fan on an off as needed

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This diagram shows a temperature gauge wired to the Ignition terminal along with the hourmeter. Does the engine have a temp sender? From it's position on the diagram it looks like it would be for the cooling fan.

The lights are wired to the Accessory terminal on the ignition switch using an orange wire.

 

Garry

D-160  Auto trans cooling fan.jpg

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The only difference is the fan would run while the engine was cranking... not sure i like that idea...  D200 diagram shows it off hot side of the light switch  being onllight switch it is coverd by a 20 am fuse.  don't see a fuse off ignition

Edited by pfrederi
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Ok after making sure I have juice to the thermostat I don't think the fan works. So I pulled it out to inspect and the motor shaft is hard to spin. Can you get these any where? It looks to be a sealed motor and can't open to see inside.

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The fan looks just like the ones that used to be used in trucks and buses to help defog windshield.  Did you try a little light oil on the shaft/?

 

 

You would have to figure out how to change over the base but this might work

 

https://smile.amazon.com/ALEKO-Dashboard-Electric-Adhesive-Aluminum/dp/B00XOIU18G/ref=sr_1_27?ie=UTF8&qid=1534782880&sr=8-27&keywords=12+volt+fan

Edited by pfrederi

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7 minutes ago, pfrederi said:

Did you try a little light oil on the shaft/?

 

Yeah --- I have even drilled a tiny hole say -- 1/16" in the covered area over the back bearing for a drop, and as paul sez, a drop on the shaft will often wick its way way into the front bearing.

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Try lighter fluid (naphtha) to clean the shaft and bushings, then lubricate with sewing machine or gun oil.

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