Hynautic Steering Problem

[Chanse]

Pulled into my slip from the travelift using lower station not aware of any problems.
Today from bridge (1st time out) backed out of dock, PANIC no control at all, I was all over the place, lucky I ended on another dock no damage to anyone, Still shaken by it.
Turns out nothing on upper station but lower station appears to be working OK, there is a third hydraulic station attached to the auto pilot.
Manual says 15Lbs pressure, shows 12 but gage cover is off.
Manual says 2/3 full in sight glass which it is.
How do I trouble shoot this? Where should I start? What are some
of the possible things to look for? Any ideas are appreciated. The
salmon are hitting...
Oh this is on a B26.

[CaptPatrick]

Pretty sure you have air in the upper station...

Bleed the whole system down and you should be back to good.

See: http://bertram31.com/newbb/viewtopic.ph ... f6d09d6564

See: http://www.fishing-catalog.com/hynautic ... _intro.htm