Hydraulics anyone ?

[Jimbo]

When I got my 110 it had a perfectly working Ramsey hydraulic winch setup - now I've finished the truck rebuild, and got a proper winch bumper fitted (unlike the original galv steel girder !), I thought it about time I finished plumbing in the winch controls..............unfortunately the drawing I made before pulling the original hydraulic setup to bits has vanished in my tip of a garage.

I've got the pump plumbed to the hydraulic tank/reservoir (never actually took these bits out), the inline filter is in, and the supply & return hoses to the spool valve block are in place. I thought the the 'P' port on the valve block was pump or pressure, and the 'T' port was tank - but rather than hook it all up wrong and spray hydraulic fluid everywhere I decided to test my theory using air. If I blow air in the P port (with the valve block lever in the idle/centre sprung position), I get air out of the T port - which makes sense, as the fluid needs to be pumped around the system back to the tank. However if I push the lever forwards or backwards (to winch in, or winch out), I get nothing from the T port (expected ?), and nothing from the two ports that should face the winch motor  :?

If I push air through the T port, then it seems to work correctly............have I got my P's and T's crossed ?

I've got paper copies of the original winch install, but no close up of the spool valve block, so I can't easily identify which port goes where.

The spool valve doesn't seem to have a manufacturers name on it - which is not at all helpful.

Can anyone assist ?

Thanks
Jim

[beast5680]

what your describing sounds about right "P" is normally pressure in and "T" is usually tank so your connections should be ok, air doesnt always travel through a hydraulic system well though if there are check valves or anything in the line

[madmatt]

With the spool in neutral air should travel from P to T

you'll then have 2 more ports which will be forward/reverse when you put oil in one it should come out the other as a winch circuit will work both ways. its hard to explain on here!

[Jimbo]

Think I'll bite the bullet and hook it up as it should be (pump to P, and return to tank on T) - and then give it a try. The remaining two ports on the spool valve - I guess it doesnt matter which connects to which port on the winch motor, it just depends on which way I want the winch to run when the lever is pulled back or pushed forwards.