Farmall 450 Steering

[grudfarms]

Power steering only works when another hyraulic valve is deadheaded.

 

[Too Far Gone]

my 400 does the same thing

 

[MIKE FRENCH]

Priority valve is bad, that is what is causing your problem, call steel wheel ranch, they can fix you up with the parts you need to fix it

 

[Janicholson]

Mike french is correct. It might be able to be freed up as is. It is nice to know a source if not. JimN

 

[Anonymous-0]

I just fixed the power steering on my 450. The others are correct that it should be your priority valve. I fixed mine on the tractor. Remember in this case it is about flow not pressure. Take the snap-ring off and slid the valve out. Inspect it and make sure it moves freely. Next, take the top off of the priority valve (the square box). Hint; take one bolt out first and get 2 bolts that are about an inch or so longer as there is a spring under the cover. Put longer bolts in oppisit (sp?) corners and take cover off. Clean assemble and make sure oil flows through it. I put a washer under the spring to increase flow. Cost was nominal for the priority valve fix. I probably should have bought a new spring though.

I also had to fix the power steering pump. I took it to a mechanic that was familiar with them and he rebuilt it for about $100.