I picked up an old B7100 the other day. The owner had removed the loader but I got all the pieces and have put it back on. I'm having trouble with the lift cylinders. They don't seem to have enough power to lift the bucket. If I hold the bucket cylinder selector back all the way and then raise the lift arms it will lift. Doesn't make much sense. I've already swapped hoses between the spools thinking something might be wrong with one of them but it's still the same. Thinking now that there might be a blockage in the lines. Filter screen is clean.