I just replaced the A60 actuator on my RangerTrail trailer. I am needing to bleed the brakes, but I cannot get the bleeder valves open. For starters, they are in a very awkward area to get to. I was finally able to get a socket on but had to use an extender since I can't connect the wrench directly to the socket. I've tried spraying the valve with penetrating spray (PB Blaster) a couple of times. Any tips or ideas would be appreciated. I've only owned the boat for 4 years and it's a 2000 boat, so it's possible the valves haven't been opened in a long, long time.