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Bleeding Hydraulic system

 
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fxwdg



Joined: 10 Apr 2008
Posts: 3

PostPosted: Sat Apr 12, 2008 7:28 pm    Post subject: Bleeding Hydraulic system Reply with quote

I just purchased a 1985 Falcon fishing boat. It has hydraulic steering. It uses a Morse Controls helm pump. It took numerous revolutions of the wheel to turn the motor, then ultimately would only turn it one way. The help pump appeared to be low. I filled it up with regular hydraulic oil and now the wheel turns very rough. When you turn it it feels like your driving a car on a flat tire, like flat spots. I read where this could be from air in the pump. Can someone telll me how to bleed these type systems? Or if you think it could be something else?
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boatScotty
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Joined: 07 Nov 2006
Posts: 229
Location: Pacific Northwest

PostPosted: Tue Apr 15, 2008 11:26 am    Post subject: Reply with quote

It is likely air in the system.

You will need to bleed the system after running low on fluid.

Remove the thumbscrew (or set screw) from the topside of the helm, and fill it completely. Once the reservoir is full, you'll need to bleed out some of the air. Do this by attaching a hose to one of the bleed screws, unscrewing the bleed screws on the ram and bleeding out the air. You have to do this for both bleed screws.

After bleeding from the first screw, then do the same process for the other bleed screw. You may have to do this five to 15 times, according to how much air needs to be released. Once you have "pure fluid" coming out from the bleeds, you're done!
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Boat Scotty

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