Had it working on dry dock. Greased some parts that looked like they were frozen, worked them back and forth, and when i trimmed the drive down, she locked into place. could not lift it by hand. when i went to trim up, the hydraulic shaft came down,hit the lever which unlocks the drive, and up she went. had the boat put in the water, and now it doesnt lock down. when in reverse, the drive walks up and out of water. any suggestions?