Help I need AC 190XT Lift Expert Lift Wont Work

To all,  well got the engine/fuel issue resolved and now its on to hydraulics..  After sitting for many years I got the old girl back up and running.  Climbed aboard to check out the hydraulics and found the steering worked (After I replaced a hose) and the PTO seems to work fine as well.  Not being sure which lever worked the lift I found out they all seemed to be frozen,  so I commenced to spray (lubricate) every thing I could.  After that I was able to get a couple moving but never got any movement out of the lift at all.  I could hear the engine loading up when I moved one or two in the forward position.  Not having any idea as to what to check first,,   would you guys have any advice or ideas as to how to proceed next? The tractor has all new fluids and filters,  I am stuck at this point in trying to get the lift operational. Thanks much.


Edited by whizone - 20 May 2018 at 4:07pm

Joe, Thanks for the info. The lift has been in the up position since I have started to work on it.  Will I need to weight it down with something to help it move down or should it move down under its own weight when I move the lever to the down position? Also which way is down,  lever moved toward the front or to the back of the tractor?

Brad, my brother opened up, cleaned and blew out the return lines/fittings and she started running somewhat ok again.  Im sure we will get it gone through once we get it moved back to the shop.  After running the lift does not work for some reason..

Won't go down if position control is back...sounds like you need a manual bad.

Edited by SteveM C/IL - 07 May 2018 at 1:33pm

It may take a lot of weight if they have been up for years. Try it with engine off.     MACK

ok guys so I tried this..  I opened the long cap on the lift arm valve spool and it seemed to be tight but nut stuck. I was able to move it with my hammer handle and lubricated it up well.  I did however find a big break on the side of the cap and didn't know if this would effect anything working or not?  Moving on,  upon inspection I found a fork flapping around not connected to anything and assumed it attached to the bracket in front of it. Anyone have any idea of how to attach it back over the button it rides on?  I tried to remove the rod but for some reason I could get it back far enough to re-attach it..  After all this still nothing in terms of getting the lift to lower.  I even put a lot of weight on the lift with no results.  However when i work the lift control back and forth now it does make the thing jerk somewhat now as opposed to nothing before...  thanks for all your help the grass is growing fast fast now and hope to mow soon!!    also almost forgot do I need to remove the other (2) caps and check/lubricate them as well?

Disconnect both hoses at each lift cylinder with the engine shut off.  Stand on the hitch to make it go down. If it won't go down, get a long pipe or pry bar and make it go down. Now that it is down, reconnect your hoses and start the engine and throttle up to 50%. DO NOT try and raise the hitch !!!!   I want to see if the hitch will stay down now that it is down. If it slowly goes up to the top on its own you have another problem.

Dr. Allis how do I positiion the traction boost and position control levers. In the Up or Down position for each?    Also as for as the hydraulic controls I position the inner control "closest to the fender " forward to drop the lift right?   What about the two other control levers to the left of the lift control lever? how do i position them? thanks much just making sure I am right with everything.

Traction Booster and Position Controls levers DOWN. Engine off and lines removed from cylinder use a very LONG BAR or pipe to force them down. They must be stuck.

Will give it another shot..  Just don't want to break anything.  Are there 2 lines per cylinder or just the one near the base in the back?  Thanks.

DrAllis, Mack and all..  disconnected lines from lift cylinders,  put a 6" sched 80 pipe across the arms, layed my trailer ramps on top of the pipe and drove my truck up the ramps...  waited..  then a loud bang and old black oil shot out of the cylinders like a cannon and down the arms and my truck went.. lol.  they were definitely stuck.  My next question is what steps would you take next in bleeding the cylinders and making sure they work as my bush hog is ready for a hookup.  Thanks much fellows for all the great advice. This forum can't be beat! Success!

Short of taking off the cylinders and rebuilding them, all you can really do is hook up the lines and put it to work and see what happens. No bleeding of lines is necessary.