Today's Message Index:
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1. 02:58 PM - Brake O-rings need replacing every now and then (mppalmer@aol.com)
2. 05:34 PM - Re: Brake O-rings need replacing every now and then (Tom Goddard)
Message 1
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| Subject: | Brake O-rings need replacing every now and then |
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 <><
Message 2
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| Subject: | Brake O-rings need replacing every now and then |
Thanks Mike.
-----Original Message-----
From: owner-glasair-list-server@matronics.com [mailto:owner-glasair-list-server@matronics.com] On Behalf Of mppalmer@aol.com
Sent: Wednesday, April 19, 2017 6:58 PM
Subject: Glasair-List: Brake O-rings need replacing every now and then
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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