jd670
Gold Member
Has anyone tried to increase the pressure on the relief valve on a 447 backhoe to give it a little extra power? I know from my manual it's set at 2250psi. The 448 is set at 2550psi.
I was just wondering if it's adjustable or fixed. I'd like to bump it up to about 2400psi for a little extra root ripping ability.
I was just wondering if it's adjustable or fixed. I'd like to bump it up to about 2400psi for a little extra root ripping ability.
