Submitted by Anonymous on Sun, 10/11/1998 - 01:34 Forums: LML Archive From: by way of Marvin Kaye <marvkaye [at] olsusa.com> <dechaze [at] cardell.com> Subject: Re:Nose Gear Retraction Date: Sat, 10 Oct 1998 21:34:17 -0400 To: <lancair.list [at] olsusa.com> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> << Lancair Builders' Mail List >> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> >> Dan Schaefer writes about bug smashing... I've also had ground problems with my nose gear door trying to close before the nose wheel is retracted. I replaced the sequence valve a couple of times and finally resorted to adding the optional hydraulic line that adds down pressure to the door cylinder in the hopes that somehow this'll do the trick. I've yet to try it out. It's a real head scratcher. In theory that door should not move until the sequence valve is actuated (at the end of the wheel cycle of course). All I can figure is that the valve leaks a little. I think the mains (with hydraulic door option) inboard doors threaten to do the same thing. How did you fix this? Best, EdeC Post a Reply Nose Gear Retraction Submitted by Anonymous on Sun, 10/11/1998 - 02:13 From: Bob Chesley <rchesley [at] soca.com> Subject: Nose Gear Retraction Date: Sat, 10 Oct 1998 19:13:10 -0700 To: Lancair <lancair.list [at] olsusa.com> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> << Lancair Builders' Mail List >> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> >> I too had the nose gear door close before gear retraction. It happened only two or three times when I first activated the gear. It did a little damage, too. Since the manual does not give any instruction on bleeding the line, and I didn't, I concluded that air in the line was leaking through the valve activatind the retract, but not the hydraulic fluid. I haven't had further problems in, probably, 100+ retractions. I'll bet deChaze is right that the valve is leaking. Now I'm having to replace the o-rings on the door cylinder because one somewhere in there has already failed. Any others had a sudden, heavy leak there? Bob Chesley L-320 builder Ojai, CA reply Post a Reply You must have JavaScript enabled to use this form. Your name Subject Comment * Switch to plain text editorMore information about text formats Text format Filtered HTMLPlain text Filtered HTMLWeb page addresses and e-mail addresses turn into links automatically.Each email address will be obfuscated in a human readable fashion or, if JavaScript is enabled, replaced with a spam resistent clickable link. Email addresses will get the default web form unless specified. If replacement text (a persons name) is required a webform is also required. Separate each part with the "|" pipe symbol. Replace spaces in names with "_".Allowed HTML tags: <a> <em> <strong> <cite> <blockquote> <code> <ul> <ol> <li> <dl> <dt> <dd> <h1> <h2> <h3>Lines and paragraphs break automatically.Plain textNo HTML tags allowed.Each email address will be obfuscated in a human readable fashion or, if JavaScript is enabled, replaced with a spam resistent clickable link. Email addresses will get the default web form unless specified. If replacement text (a persons name) is required a webform is also required. Separate each part with the "|" pipe symbol. Replace spaces in names with "_".Web page addresses and e-mail addresses turn into links automatically.Lines and paragraphs break automatically. Attachments Add a new file Files must be less than 512 MB.Allowed file types: jpg jpeg gif png txt doc docx xls xlsx pdf ppt pptx pps ppsx odt ods odp mp3 mov mp4 m4a m4v mpeg avi ogg oga ogv weba webp webm. Leave this field blank
Nose Gear Retraction Submitted by Anonymous on Sun, 10/11/1998 - 02:13 From: Bob Chesley <rchesley [at] soca.com> Subject: Nose Gear Retraction Date: Sat, 10 Oct 1998 19:13:10 -0700 To: Lancair <lancair.list [at] olsusa.com> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> << Lancair Builders' Mail List >> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> >> I too had the nose gear door close before gear retraction. It happened only two or three times when I first activated the gear. It did a little damage, too. Since the manual does not give any instruction on bleeding the line, and I didn't, I concluded that air in the line was leaking through the valve activatind the retract, but not the hydraulic fluid. I haven't had further problems in, probably, 100+ retractions. I'll bet deChaze is right that the valve is leaking. Now I'm having to replace the o-rings on the door cylinder because one somewhere in there has already failed. Any others had a sudden, heavy leak there? Bob Chesley L-320 builder Ojai, CA reply
Nose Gear Retraction
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