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Bleeding air from hydraulic line

Discussion in 'Hatteras Yacht' started by Cooter Brown, Oct 23, 2019.

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  1. Cooter Brown

    Cooter Brown New Member

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    Blew hydraulic lines on steering. Repaired lines. Now I have 2 station. One in the tuna tower and one at the lower helm on my 1998 Hatteras 43Express. What do I have to do to get air out of both systems?
  2. Cooter Brown

    Cooter Brown New Member

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    Hey Capt Ralph. Good to hear from you. Just seems like every time I think I've got everything ship shape something else goes array. Oh well it keeps me busy and I've got plenty good bourbon. Just can't crawl those tight places anymore. I've got an air compressor and tools. But I'm thinking 15 lbs air pressure???
  3. Capt Ralph

    Capt Ralph Senior Member

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    Oh wait.... steering system NOT clutch and throttles.
    Scratch all above.
    For the steering system go to the Sea Star web site and find the instructions to bleed your hynautic steering system. If you can't find it, I'll light up my old server and get it for you.
    Got to West marine and pick up 2 or 3 qts of hynautic steering fluid.
    An air compressor with chuck will help but you will need up to 25PSI here.
  4. Capt Ralph

    Capt Ralph Senior Member

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    It's a boat. Your never on top of her.
    She just lets you feel good up there some times.
  5. Capt Ralph

    Capt Ralph Senior Member

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    I know about reaching into places and getting stuck. That's when that helper comes in.
    Or if he (she?) is skinnier, he (she) can crawl in there.
  6. Capt Ralph

    Capt Ralph Senior Member

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    If it's a she, I'll be rite over to help,,,,:cool::cool::cool:
  7. Capt Ralph

    Capt Ralph Senior Member

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    Hammond???
    (*^%
    I got friends near. Some just by you last week.
  8. Cooter Brown

    Cooter Brown New Member

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    Good morning Capt. Have all the tools, compressor and all. This gal has a booster pump located near the rudder stock on the port side. I'll trace these lines down and find the oil reservoir. I'll fill the tank up and pressure up the line. 25lbs pressure? Guess I should do one station at a time. Hopefully it doesn't blow oil every where.
  9. Cooter Brown

    Cooter Brown New Member

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    I keep the Cooter Brown over in Madisonville. Fresh water harbor.
  10. Capt Ralph

    Capt Ralph Senior Member

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    Booster pump? Electric?
    What brand of steering?
    I assumed a Hynautic system.
  11. Capt Ralph

    Capt Ralph Senior Member

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    Boat owners from Covington have adopted me.
    They have a large band of children and grand kids everywhere.
    I can't keep track of all the names.
  12. Cooter Brown

    Cooter Brown New Member

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    It is a hynautic and its electric dc. Pretty sure is 12v.
  13. Capt Ralph

    Capt Ralph Senior Member

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    I'm not sure about that model. You should still have a valve block before the cylinder. There are 2 screw valves you may need to open.
    You really may have to find the correct model and download the manual.
    Calling Sea Star direct may help if your like me, slow on a computer.
  14. Pascal

    Pascal Senior Member

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    The sea star website has a bunch of manuals online.

    Usually you pressurize the tank to 30/35 psi and then turn the upper helm SLOWLY till you get a stop. Then turn the otherway SLOWLY till you reach the other stop.
  15. PacBlue

    PacBlue Senior Member

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  16. Cooter Brown

    Cooter Brown New Member

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    Good morning shipmates. I do have the the Hynautic manual with the right configuration. This weekend I'll have a little help with me. So maybe we can get this thing figured out. Interesting note that when the steering hose ruptured the rudders were in a straight line position. Because the Cooter is a twin screw, I was able to steer the boat in 4ft slop. Throttle back on the port to turn to port, throttle back to turn to starboard. Did that for 80 miles. Interesting trip. It was good to get back to the harbor.
  17. Capt J

    Capt J Senior Member

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    Try cracking the lines on the back side of the tower station. Usually if the boat is sitting a few days the air goes up to the highest station.
  18. Cooter Brown

    Cooter Brown New Member

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    Does anyone know the location of the steering oil reservoir on this 1998 Hat 43ft Express? I crawled the engine room, followed lines and couldn't find it. It must be hidden!
  19. cleanslate

    cleanslate Senior Member

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    usually it under the lowest helm. under the dash, in a cabinet etc..