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Showing results for tags 'vacuum gauge'.
Found 3 results
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For the last month or so on start the vacuum gauge vibrates extremely rapidly. It smooths out above 1500rpm. It does the same when I engage the back-up system. The pump has about 170 hours since new. Any ideas? Jake35
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Hi all- We're about to do a G5 HSI install, keeping an existing Attitude Indicator and the vacuum system that drives a century autopilot. I was looking at the vacuum setup and noticed that the vacuum suction gauge comes off a second AN port on the DG. The attitude indicator lacks a similar additional port. I'm gathering accouterments for this part of the installation. I'm thinking the most simple acceptable way to do this is to measure the suction from the line on the vacuum regulator by using a barb reducer hose adapter from 3/8 ID to 1/4 ID and then capping the second orifice on the instrument air filter. Before I have a discussion with my IA - this sound about right? Picture below to illustrate what I'm talking about. My SN seems to not be well illustrated in the parts catalog - otherwise I'd use that instead of a hand-drawn picture. But... whatever works. Thanks for the advice -Brad Edit: Brain fart removal.
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Since my last MX had me remove the entire PC system I have noticed the vacuum gauge reading on the low side (between the bottom of the gauge and the bottom of the green arc). I do not know if this is due to removing the PC but that is when I first noticed it. I do not get any HI or LO light indications and my vacuum instruments work well as I do not have to constantly set my heading indicator to the mag compass. Does anyone have an idea of what might be the problem? The only thing I could think of is a faulty gauge since everything else seems to be working fine.
