The hyd is not hard to fix, if the spool is stuck, shoot penatrating oil on it, give it some time to work, and tap the end gently while holding tension on the actuating lever, just move it a little @ a time and don't get crazy with the hammer you just want to jar it loose. usually they break free easily unless stuck for years.
if all that fails, then you will have to pull the block off and get more agressive getting it to move.
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