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Brake O-rings need replacing every now and then

 
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mppalmer(at)aol.com
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PostPosted: Wed Apr 19, 2017 1:58 pm    Post subject: Brake O-rings need replacing every now and then Reply with quote

Wanted to remind everyone that the O-rings in the brake master cylinders (and the calipers) need replacing about every 10 years or so. (O-rings have a 15 year service life - from cure date. Probably less in hot climates.)

There are 3 O-rings in each brake master cylinder. Two are obvious - the third is buried inside the outer shell. It's the most critical. (There might be O-rings for the tube fittings too - I haven't gotten there yet.)

Might as well replace the O-rings on the brake calipers too, especially since we're free castering nose gear steering. (There's an AD on Cirrus aircraft for replacing those O-rings because you have to steer with brakes in a Cirrus too.)

And while speaking of cure dates, if you have a sight gauge for the header tank and/or if you have extended fuel tanks in the tips, you need to change out the rubber coupling hose(s) there about every 10 years too.

Mike Palmer <><


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Joined: 09 Apr 2013
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PostPosted: Wed Apr 19, 2017 4:34 pm    Post subject: Brake O-rings need replacing every now and then Reply with quote

Thanks Mike.

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