Woodyorion, would you be able to put up a couple of pictures for us, yes some of the crew love pictures,
I would suggest if one side is hanging it could be seals in one cylinder have failed, it will move up and down only due to the bracing in the blade system making it happen, if you remove one cylinder at a time from blade end and cycle the up and down the blade should technically lift off the ground or push into the ground raising machine, the one that does not try to lift or push down is the issue, the detached cylinder will cycle easy as no load against it. Sounds like the right side hanging lower is the problem cylinder.
You have a wonderful day. Best wishes. Deas Plant.
Woodyorion, would you be able to put up a couple of pictures for us, yes some of the crew love pictures,
I would suggest if one side is hanging it could be seals in one cylinder have failed, it will move up and down only due to the bracing in the blade system making it happen, if you remove one cylinder at a time from blade end and cycle the up and down the blade should technically lift off the ground or push into the ground raising machine, the one that does not try to lift or push down is the issue, the detached cylinder will cycle easy as no load against it. Sounds like the right side hanging lower is the problem cylinder.
Hi, woodyorion.
If this is, as you say in your post title, a 7A blade, complete with C-frame and angle/tilt braces, I suspect that the problem will be in the tilt braces on top of each angle brace. Are they locked in position with the 'T' bars placed in the retaining loops in the back of the blade or are they free to rotate as you work? As old as this machine is, do they even rotate any more?
I have seen a couple of those tilt braces in which the rear 'eye' has pulled out of the rear end of the brace and is free to slide in and out as you work.
Just my 0.02
Yes I have the arms actually now that you say it on the left side or the side that is staying up, there is a rod through the top on a cage like on the blade to keep from turning and the low side does not have one. I was going to try and bring a big pipe wrench and try turning it. I will get pics on friday
thanks
Woodyorion, if the seals are damaged due to age, wear, etc it will leak internally from one side of the piston to the other, if you detach it from blade, it will move as per normal,
with weight of blade it will lift then lower as soon as hydraulic pressure is stopped, it will go to resting position, (the ground)
pushing blade into ground to raise machine will do the same (machine will rest on ground again)
External leak will only show if dust seal and rod pressure seals have failed in cylinder head. From your description it seems like piston seals have failed or bracing on blade requires lots of adjustment to lift corner up again. hopefully this helps