HydroLift problems-C-161

[racinfool40 202]

Ok, Here's what I have...A C-161 with twin Briggs the hydro lift, It will lower but will not raise...I have checked the cone valve..looks good..It seems to be getting pressure as I can see the line's move with the pressure in them..I'm stumped here..any thoughts on what else to check..HELP!!!

[TT-(Moderator) 1,145]

Sounds like it might be a bad spool (control) valve.

Is it lowering under power ("down pressure"), or by gravity?

[racinfool40 202]

TT, It will lower-Extend the ram with force...But will not bring the ram back into the cylinder..

Mike

[TT-(Moderator) 1,145]

Any history on this tractor? Is this a new issue?

[racinfool40 202]

Terry I just picked this tractor up hasn't ran in awhile..Got it runnin..Runs great engaged the trans and had a bad leak at the hydro valve so I shut it down the non-bolt side of the hydro valve were the hose attaches was stripped out replace this side and reinstalled on the tractor. topped of the hydro fluid (ATF) was about a half a guart low..started the tractor engaged the hydro no leaks.went to move the hydro control valve and it pushed the ram out but would not retract it???? If I crack open the back side hydro cyl. hose I can force them ram back.tighten the line and move lift valve and it will push the ram out again ... but no retracting of the ram..checked the cone valve and the valve that has the ball all looked clean and good..after talkin to a few other members I'm leaning towards the spool valve in the lift valve but wanted to be sure... them valve's on a C-161 are a pita!!!!!

MIKE.

[WheelHorseSteve 56]

Can you post a picture showing where you have connected the hoses to the hydro pump? If the return isn't in the right spot this would happen (don't ask why I know this)

[racinfool40 202]

Steve, I thought of that also..I went as far as too switch the hose's at the pump and still had the same results.

MIKE.

[oldredrider 2,549]

Shouldn't the C-161 use 10w30a motor oil? Not atf.

[racinfool40 202]

Paul, I thought the same thing..But after seein whats in some if the hydro's I have come across, some have ATF, some 10w30-10w40..The drive works great so I left it alone. I'm thinkin it's another one of those things that WH used what was on hand at the time..Plus I have no idea what the previous owners have done...

MIKE.

[racinfool40 202]

Well went out Today and removed all the hose's and the valve..found one hose that I suspect was the culprit...But not sure re-installed all hose's in there CORRECT Ports and she works like a dream....Thanks Everyone for all your help!!!!! MIKE