sorehands
Guest
Not sure of the PSI rating, but I would go big. I have blown these four times. There is just a tremendous pressure going through these.
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Combines blow hose to rotor motor 8570
Harvester
Guest
Use a 7000 psi rating and the same size hose that MF originally used. Remember that the larger inside diameter a hose is, the more surface area is under that pressure so that larger hoses typically have lOWER pressure ratings than smaller ones, unless you get super-strong walls. Bigger hoses are not necessarily the solution.
catfarmer
Guest
The hydraulic system is running at 4250 psi. A 6 wire hose rated at 6000 psi working pressure is sufficient because it has a burst rating over 12000 psi. Changing hose sizes doesn't lower the pressure rating, all 6 wire hoses rated for 6000 psi are designed for 6000 psi working pressure, whether it is a 1" hose or a 3" hose. If you changed hoses sizes you may prolong life due to reduced flow velocity.