TV 145 | Hydraulic Temp Sensor

[mtnman3321]

Does anyone have a diagram showing the location of the hydraulic temperature sensor?

I need to swap mine out unfortunately and need some guidance where I can find it

Thank you

 

[TractorTech]

Here it is, located on the hydraulic line off of the pump, but the price!

 

[rScotty]

What's it doing? Are you getting an overtemp code? We need to know what the tractor is doing with that switch info. Do you have an electrical schematic? It might show us if this is a simple or an analogue device/variable resistor.

 

[mtnman3321]

What's it doing? Are you getting an overtemp code? We need to know what the tractor is doing with that switch info. Do you have an electrical schematic? It might show us if this is a simple or an analogue device/variable resistor.

The hydraulic over temp light flashes for a bit and then it turns off.
It has been doing this for the past few times I have been using it.

One day, the above mentioned scenario happened and then the word " Stop" was flashing on the dashboard
The engine shut off on its own however I was able to restart it and and then the high temp light turned off after about an hour or so of running it

I don't have any electrical schematics unfortunately

 

[rScotty]

The hydraulic over temp light flashes for a bit and then it turns off.
It has been doing this for the past few times I have been using it.

One day, the above mentioned scenario happened and then the word " Stop" was flashing on the dashboard
The engine shut off on its own however I was able to restart it and and then the high temp light turned off after about an hour or so of running it

I don't have any electrical schematics unfortunately

Pretty much the same message I got from our JD backhoe from the same era. And yet when I used a thermometer on a string, it told me that the fluid temperature was normal.

A lot of those senders are simply temperature-sensitive variable resistors of a sort where the resistance increases as the termperature rises. And not-very-smart dashboard computers then displays whatever message matches the resistance reading it is getting.

The problem with that type of sender early on came about when a when a wire connection was going bad or a wire had broken. When a connection fails or a wire breaks the sending circuit resistance reads as infinitely high. Those earlier dashboard computer interpreted an open circuit as being Way Too Hot, \and flashed "overtemp" followed by "STOP" and then a shutdown.

All of which is a long-winded way of saying if the dash says too hot but you measure the temperature and it seems about right, then first look for a broken sender wire or bad sender wire connection.
Hope this works for you,
rScotty

 

[mtnman3321]

Here it is, located on the hydraulic line off of the pump, but the price!

Thank you for the diagram.
Is this located under the cab section or off of the engine ?

 

[TractorTech]

Hydraulics section, 05F17 diagram hydraulic pump and tubing.

I'm sorry, I reread your question. The pumps are located on the splitter box

 

[mtnman3321]

Hydraulics section, 05F17 diagram hydraulic pump and tubing.

I'm sorry, I reread your question. The pumps are located on the splitter box

Thank you, what do you mean by splitter box?

 

[TractorTech]

The splitter box is midframe that connects the engine to the back end via drivelines. The pumps drive off of the splitter box and looks like the picture attached.