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Subject: TWL: Re: Follow UP Question on Hydrolic Steering / Hynautic controls
From: Annieseztoo (Annieseztoo@XXX.XXX)
Date: Thu Dec 13 2001 - 13:52:08 EST
>The book says
> fill the reservior to 1/2 - 2/3 full and repreassurize it to 70-90 lbs.
> also it says " extemded preasure loss is normal and may be compared to the
> same type of preasure loss one experiences with a good set of automotive
> tires after an extended time". (write me off line if you need other info,
> I have the book)..jd
<snip>
There must be differences in the specs over the years. I have Hynautic
steering in my 1988 34 Marine Trader, and that pressure sounded way high to
me. I double checked my Hynautic manual to verify. It recommends 35 - 45 psi
for initial fill and purging and an operating pressure of 20 - 30 psi.
Perhaps running too high a pressure in an older (newer?) system designed
for less could be causing the pressure drop. I think it would be worth
giving Hynautic a call to verify the specs for that particular system.
FWIW I have been running my system at 25 psi for the last 10 years. I
check the pressure routinely, but other than having a failure at a hydraulic
line connection, I usually drop only about 5 psi over a full year.
Walt Konieczko
Annie Sez Too 34 Marine Trader
Lanoka Harbor, NJ
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