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Old 07-13-2020, 03:14 PM   #1
City: Milford
Country: US
Join Date: Jun 2020
Posts: 4
Hydraulic steering

Hello all , need advice on my steering. I replaced the seal on my SeaStar cylinder filled and bled both helms , I took my MS 390 out for 1st time and experienced way too much play in the wheels as a matter of fact almost went into docked boats in the channel any ideas as to why the big play in the steering thank you

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Old 07-13-2020, 03:38 PM   #2
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City: Essex, Ct.
Country: USA
Vessel Name: Harmony
Vessel Model: 1982 41' President
Join Date: May 2013
Posts: 214
Confirm that all of your linkages are snug all the way down to your steering posts. Could autopilot be interfering some ?

Tom and Cheryl
1982 41' President
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Old 07-16-2020, 02:11 PM   #3
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City: Between Oregon and Alaska
Country: US
Vessel Name: Charlie Harper
Vessel Model: Wheeler Shipyard 83'
Join Date: Jun 2016
Posts: 1,912
Most likely air in the system. Air compresses so when turning the wheel the air has to reach a high compression before pushing the oil toward the cylinder. Usually it keeps the rudder from reaching full rudder position and it makes rudder changes slower.
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Old 07-16-2020, 03:19 PM   #4
City: Hughesville, MD
Country: USA
Vessel Name: Branwen
Vessel Model: Hatteras 48 LRC
Join Date: Feb 2015
Posts: 591

What bleeding process did you follow? How is your system configured, one or two helms?

I forget which company bought which or what name each steering system used to be called, but I've attached an example of proper procedures for bleeding a specific 2-helm hydraulic steering system. The bleeding process takes time, and it's obvious as one goes through it when progress is being made and when the process has been successful.

Good luck! Let us know how it goes.

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