Hydraulic Oil Cooling Fan

[tlb13057]

Has anyone ever replaced the (plastic) hydraulic oil cooling fan on a (2003) PT425? Power-Trac price is very high. Made by SPAL (Italian). I have found a couple (jaycorp technology) but not exact matches to the one on the tractor.
Thanks,
-Sundown

 

[ponytug]

When I checked, the one for 1445 is on the SPAL USA website. SPAL has an odd way of showing diameter on their specification sheets. You may want to double check and make sure that you are measuring the fan the same way that SPAL does. They measure the fan diameter on the inside; fitting to fitting or max diameters are different (cf the 1445 fan). I don't know that the SPAL has any more fans than Jay Corp. though.

SPAL sells higher performance fans of the same diameter, but since they draw more current (for the 1445 ~300% more current 100% more air), they would probably need an additional relay for control to minimize the strain on the thermostatic switch.

Good luck.

All the best,

Peter

Has anyone ever replaced the (plastic) hydraulic oil cooling fan on a (2003) PT425? Power-Trac price is very high. Made by SPAL (Italian). I have found a couple (jaycorp technology) but not exact matches to the one on the tractor.
Thanks,
-Sundown

 

[pajoube]

Has anyone ever replaced the (plastic) hydraulic oil cooling fan on a (2003) PT425? Power-Trac price is very high. Made by SPAL (Italian). I have found a couple (jaycorp technology) but not exact matches to the one on the tractor.
Thanks,
-Sundown

I thought my fan had gone out on my 425 but when checking the sensor, that appeared to be the problem. Ordered another from Power Trac which did not work so I wired direct to a switch from the battery which is working very well and at a very low cost.
PJ

 

[MossRoad]

I thought my fan had gone out on my 425 but when checking the sensor, that appeared to be the problem. Ordered another from Power Trac which did not work so I wired direct to a switch from the battery which is working very well and at a very low cost.
PJ

My sensor went out, too and I wired the fan direct to the battery with a clip/plug. I just plug the fan in before I start the tractor and unplug it after I'm done.

 

[BobRip]

My sensor went out, too and I wired the fan direct to the battery with a clip/plug. I just plug the fan in before I start the tractor and unplug it after I'm done.

My sensor went bad too. I replaced. It seems silly to wear the fan, load the generator, and force more cold air over a cold engine.

 

[menchhofer]

If I remember correctly, the sensor is a washing machine thermacouple or something along that line.

 

[MossRoad]

My sensor went bad too. I replaced. It seems silly to wear the fan, load the generator, and force more cold air over a cold engine.

Yeah, I thought about that. Then I thought about it some more. Once the sensor turns the hydraulic cooling fan on, it stays on and never ever shuts off until I turn the tractor off. Winter or summer, that's the case. At full throttle, the internal engine fan is blowing massive amounts of air over the engine continuously right from the start. Since the engine compartment is open on all four sides with steel mesh I don't think the air pulled out of the engine compartment by the hydraulic cooling fan has any measurable affect on the engine temperature at all.

 

[Clumber]

Yeah, I thought about that. Then I thought about it some more. Once the sensor turns the hydraulic cooling fan on, it stays on and never ever shuts off until I turn the tractor off. Winter or summer, that's the case. At full throttle, the internal engine fan is blowing massive amounts of air over the engine continuously right from the start. Since the engine compartment is open on all four sides with steel mesh I don't think the air pulled out of the engine compartment by the hydraulic cooling fan has any measurable affect on the engine temperature at all.

What is the internal engine fan? I did not notice one on my PT-425?

 

[frischtr]

What is the internal engine fan? I did not notice one on my PT-425?

Right here under the back shroud driven by the crankshaft... All air cooled engines have them.

 

[Clumber]

Right here under the back shroud driven by the crankshaft... All air cooled engines have them.

Ah yes, I remember it now. Thanks!