<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div><span></span></div><div><meta http-equiv="content-type" content="text/html; charset=utf-8"><div>Yesterday I wrote "<span style="background-color: rgba(255, 255, 255, 0);">I have concluded that the most likely cause of my problems are low OD fluid levels and/or inadequate opening of the actuating valve. Both I can readily deal with."</span></div><div id="AppleMailSignature"><span style="background-color: rgba(255, 255, 255, 0);"><br></span></div><div id="AppleMailSignature"><span style="background-color: rgba(255, 255, 255, 0);">In off line discussions with Steve Byers I have added a third and ominous possibility, a defective accumulator. The good hydraulic pressure already confirmed only indicates that the pump is OK because testing was not done while trying to engage the OD. My understanding is that OD engagement is the accumulator's function and the pump's role is to pressurise the accumulator for this task <u>before</u> OD engagement. </span><span style="background-color: rgba(255, 255, 255, 0);">A definitive test of accumulator condition seems to be how well it holds pressure after the engine is switched off! </span></div><div id="AppleMailSignature">_____________________<div><span class="Apple-style-span" style="-webkit-tap-highlight-color: rgba(26, 26, 26, 0.294118);">Neil McDonald</span></div><div><div><div><br></div><div>Email: <a href="mailto:nmcd10@gmail.com">nmcd10@gmail.com</a></div><div><br></div></div></div></div></div></body></html>