Today's Message Index:
----------------------
1. 05:36 AM - Re: MATCO Wheels (Mark Stauffer)
2. 07:44 AM - MATCO wheels and brakes - take 2 (Mark Stauffer)
3. 09:15 PM - Re: Matco wheels and brakes (Harry Weber)
Message 1
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This is a part number that MATCO came up with. It means: Socket Head Cap
Screw 1/4" x 20 pitch threads x 1.25" long. It does not delineate a hardness
of the bolt, you'll have to call MATCO for that information.
Hope this helps!
Best regards,
Mark
-----Original Message-----
From: owner-lightning-list-server@matronics.com
[mailto:owner-lightning-list-server@matronics.com]On Behalf Of
EAFerguson@AOL.COM
Sent: Monday, March 14, 2011 8:36 PM
To: lightning-list@matronics.com
Subject: Re: Lightning-List: MATCO Wheels
In a message dated 3/14/2011 1:14:40 P.M. Eastern Daylight Time,
mark@flylightning.net writes:
SHCS .25 - 20 x
1.25 SHCS
Mark et al. Please translate the SHCS code. Is this a bolt grade? Is it an
AN bolt? The listed torque sounds low for a 1/4" bolt.
BTW, I have had no problems with mine at 350 hours and 4 tire changes, but
I think next annual I might change them for new and of course use the torque
wrench to tighten.
Earl
Message 2
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| Subject: | MATCO wheels and brakes - take 2 |
I received an e-mail from George Happ at MATCO last night regarding my post
to the Lightning List. I posted some wrong information yesterday and he
wanted to make sure that the Lightning community had the correct torque
specs.
Bottom line: The correct torque value for the through bolts (PN: SHCS
.25-20x1.25") is 99 INCH pounds. George told me that more problems could
result from UNDER torque rather than over torque of these through bolts so
please take care when assembling your wheels.
Also, George has updated the web site with a new installation booklet that
spells out everything you need to know about installing and maintaining his
products. This book clearly lists all the correct torque values on page 11.
Please take a look at this manual since it contains tons of useful
information.
http://www.matcomfg.com/GeneralWheelBrakeInformation-idv-2665-23.html
I will make sure that we get this information into the newsletter as well.
I think this speaks highly of George and MATCO. One of our community members
called him, he saw conflicting information on his web site and then fixed it
- in less than 12 hours. Then he e-mailed and called me to make sure we had
the correct information so we could let our customers know.
Best regards,
Mark
Mark Stauffer
Production Manager
Arion Aircraft
2842 Hwy 231 North
Shelbyville, TN 37160
(931) 680-1781
Message 3
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| Subject: | Re: Matco wheels and brakes |
Doug: I had Clevelands on my Glasair and traded them for Matco. The difference
in stopping power was incredible. Matco support is the best and they will take
the time to answer any questions. They frequent air shows also for a first hand
talk. Just my opinion as I'm not flying my Lightning yet but the comparison
probably still applies. Harry
----- Original Message -----
From: "Bernard Melendez, Jr." <n45bm@yahoo.com>
Sent: Monday, March 14, 2011 3:00:49 PM
Subject: Re: Lightning-List: Matco wheels and brakes
Doug,
I have not heard of other brands of aircraft wheels having similar problems. And
I addressed it as a "possible" defect, not as a definitive defect. My apologies
if I ruffled some feathers.
I was merely inquiring about other wheel brand possibilities and/or changes that
could be made to improve the application.
Again, as I have not reached this stage of my build, it is not an issue for me...yet.
Nor am I questioning that "Matcos are the lightest, simplest, best supported
and most economical brake systems out there", though that may be open for
debate.
My questions were meant to be thought-provoking and to lead others to consider
this issue or other options.
Regards,
Bernardo Melendez
--- On Mon, 3/14/11, Kayberg@AOL.COM <Kayberg@AOL.COM> wrote:
From: Kayberg@AOL.COM <Kayberg@AOL.COM>
Subject: Re: Lightning-List: Matco wheels and brakes
In a message dated 3/14/2011 11:05:22 A.M. Eastern Daylight Time, n45bm@yahoo.com
writes:
Having a wheel come unglued while landing or on take off and possibly turning
your shiny Lightning into fiberglass splinters can be embarrassing, to put it
mildly. This is an issue that should be addressed and solution(s) found to correct
this problem.
Would we be better off using different wheels and brakes like Cleveland's, for
example? Is that a viable solution, and could they be fitted or would the axle
and wheel attach need to be redesigned for that system, or another better system?
In any event, responsible people should take the lead and address this possible
defect in design and come up with a reasonable solution, in my humble opinion.
Bernardo Melendez, Kit #110
What design defect?
Reasonable people should not overtighten or undertighten the screws. The Matcos
are the lightest, simplest, best supported and most economical brake systems
out there.
Only a couple people have had problems and they were addressed. The brakes you
were shipped in your kit were updated to deal with the problem. As long as you
install them correctly , you should be fine.
Doug Koenigsberg
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