Hello all,
I have a 1964(?) Oliver 550 gas with power steering. Originally it had the separate belt driven pump mounted above the generator. It has the side mounted steering cylinders. The original PS pump and brackets etc. were missing from the tractor when I bought it. It had another PS pump that someone cobbled on and the PS hoses got cobbled up when they adapted to the “new” pump. The set up I now have is the older or 1st style PS pump mounted behind the generator. I’m trying to figure out how to plumb this and check the integrity of this used PS pump.
My questions are:
Which port is which? The PS pump pumps fluid from the small port when I turn the engine over with the starter. Is that correct? Is the small port the pressure port and the large port the return port?
What should the pressure for this pump be? 950 PSI to 1050 PSI?
Thanks for any help you may have.
Take Care, John
I have a 1964(?) Oliver 550 gas with power steering. Originally it had the separate belt driven pump mounted above the generator. It has the side mounted steering cylinders. The original PS pump and brackets etc. were missing from the tractor when I bought it. It had another PS pump that someone cobbled on and the PS hoses got cobbled up when they adapted to the “new” pump. The set up I now have is the older or 1st style PS pump mounted behind the generator. I’m trying to figure out how to plumb this and check the integrity of this used PS pump.
My questions are:
Which port is which? The PS pump pumps fluid from the small port when I turn the engine over with the starter. Is that correct? Is the small port the pressure port and the large port the return port?
What should the pressure for this pump be? 950 PSI to 1050 PSI?
Thanks for any help you may have.
Take Care, John
