Hydraulic system cooler

[KRS1]

Hey guys, This is a stretch putting this post in this section (it is part of the hydraulics in the brakes lol)…
Is this cooler for the hydraulic brake system (as pictured

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)?

 

[smdk2500]

That appears to be the power steering cooler. there are 2 styles that I know of from the factory. That one and one that is a tube that goes inside the drivers side frame rail

 

[KRS1]

Thanks! I wonder why the power steering system needs a cooler? I guess due to a heavy towing load it stresses the power steering more?

 

[Hobie]

Thanks! I wonder why the power steering system needs a cooler? I guess due to a heavy towing load it stresses the power steering more?

A power steering system can easily reach 300-400psi of pressure, and even more depending on the vehicle. I'm not 100% too sure what these trucks run, but I digress. That high of pressure means there is a lot of heat that builds up within the fluid. And the fluid actually starts to break down around 230~ degrees Fahrenheit. So the cooler the fluid stays, the longer you can go not only for servicing the fluid, but also keeping the power steering system working properly.

 

[Hobie]

Thanks! I wonder why the power steering system needs a cooler? I guess due to a heavy towing load it stresses the power steering more?

A power steering system can easily reach 300-400psi of pressure, and even more depending on the vehicle. I'm not 100% too sure what these trucks run, but I digress. That high of pressure means there is a lot of heat that builds up within the fluid. And the fluid actually starts to break down around 230~ degrees Fahrenheit. So the cooler the fluid stays, the longer you can go not only for servicing the fluid, but also keeping the power steering system working properly.

 

[someotherguy]

The trucks with that air-to-air cooler as pictured are typically the hydroboost trucks, so the pump (and fluid) are definitely working harder, powering not just your steering but your brake booster as well.

Richard

 

[KRS1]

Thanks guys, yes it is a hydroboost truck..I assume it is a fairly simple system. the reason I ask is that I am using a universal wiring harness (Speedway brand)