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ptag.dev(at)tiscali.co.uk
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 Posted: Sat Feb 23, 2008 3:54 am Post subject: Renewing Rapco trike brake linings...... |
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Hi! All
Any help /suggestions with a problem encountered renewing the brake linings?
I have Europa supplied Aircraft Spruce Rapco brake linings supplied as a kit
with the rivets, I also have the correct anvil and punch to install the
linings on the back plates.
Having split two linings I have examined all the parts and it would seem
that the rivets are flat under the heads and the hole in the new pads is
countersunk.
The rivets are marked "4-4" and they don't seem long enough to exit the
back of the plate to begin to "peen" over before "snugging" on to the new
pad hence when more "peening" is applied the pad splits before the
unchamfered rivet assumes a conical shape to match the chamfered hole in the
new lining.
To me it is quite obvious that the rivets should be chamfered under the
heads then they just may be long enough to "PEEN" OVER BEHIND THE PLATE.
Otherwise just supplying longer unchamfered rivets will still split the
pads?
Any one overcome this problem ? and how ?
I'd be delighted to hear.
Regards
Bob Harrison.
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topglock(at)cox.net
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| Posted: Sat Feb 23, 2008 6:46 am Post subject: Renewing Rapco trike brake linings...... |
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Bob,
I'm not close to my brake supplies, but I believe the rivets should be 4-6 (or was it 4- At any rate, I had to purchase the rivets separately, as the ones supplied with the linings were too short. Once you have the proper rivets, the rest is a piece of cake.
Jeff - Baby Blue
370 hrs
Robert C Harrison wrote: [quote] | Quote: | Hi! All
Any help /suggestions with a problem encountered renewing the brake linings?
I have Europa supplied Aircraft Spruce Rapco brake linings supplied as a kit
with the rivets, I also have the correct anvil and punch to install the
linings on the back plates.
Having split two linings I have examined all the parts and it would seem
that the rivets are flat under the heads and the hole in the new pads is
countersunk.
The rivets are marked "4-4" and they don't seem long enough to exit the
back of the plate to begin to "peen" over before "snugging" on to the new
pad hence when more "peening" is applied the pad splits before the
unchamfered rivet assumes a conical shape to match the chamfered hole in the
new lining.
To me it is quite obvious that the rivets should be chamfered under the
heads then they just may be long enough to "PEEN" OVER BEHIND THE PLATE.
Otherwise just supplying longer unchamfered rivets will still split the
pads?
Any one overcome this problem ? and how ?
I'd be delighted to hear.
Regards
Bob Harrison.
|
[b]
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rholder(at)avnet.co.uk
Guest
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| Posted: Sat Feb 23, 2008 7:06 am Post subject: Renewing Rapco trike brake linings...... |
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Rman wrote:
| Quote: | I'm not close to my brake supplies, but I believe the
rivets should be 4-6 (or was it 4- At any rate, I
had to purchase the rivets separately, as the ones
supplied with the linings were too short. Once you
have the proper rivets, the rest is a piece of cake.
Jeff - Baby Blue 370 hrs
|
Bob
I can confirm you have to use the 4-6 rivets which ACS
sell, and so do Europa.
This is because the backplate is ali and is thicker. Steel
backplates are thinner and use 4-4 rivets !
ACS also sell a rivet removal/replacing tool which is a
screw fit and does not need the use of a hammer !
Richard Holder
G-OWWW Classic Tri-Gear
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ptag.dev(at)tiscali.co.uk
Guest
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| Posted: Sat Feb 23, 2008 2:13 pm Post subject: Renewing Rapco trike brake linings...... |
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Hi! Jeff and Richard
Thanks for the quick responses, I was dumb to even try but not so dumb as Europa for sending the packs without the larger rivets anyway I spoke to Neville Eyre and he says he remembers that one Chris Gunnee (Spares man of yesteryear ) always had some of the longer rivets in his desk draw ! Not much damn good to me now!
Regards
Bob H G-PTAG
-----Original Message-----
From: owner-europa-list-server(at)matronics.com [mailto:owner-europa-list-server(at)matronics.com] On Behalf Of Rman
Sent: 23 February 2008 14:43
To: europa-list(at)matronics.com
Subject: Re: Renewing Rapco trike brake linings......
Bob,
I'm not close to my brake supplies, but I believe the rivets should be 4-6 (or was it 4- At any rate, I had to purchase the rivets separately, as the ones supplied with the linings were too short. Once you have the proper rivets, the rest is a piece of cake.
Jeff - Baby Blue
370 hrs
Robert C Harrison wrote: [quote]Hi! All Any help /suggestions with a problem encountered renewing the brake linings?I have Europa supplied Aircraft Spruce Rapco brake linings supplied as a kitwith the rivets, I also have the correct anvil and punch to install thelinings on the back plates.Having split two linings I have examined all the parts and it would seemthat the rivets are flat under the heads and the hole in the new pads iscountersunk. The rivets are marked "4-4" and they don't seem long enough to exit theback of the plate to begin to "peen" over before "snugging" on to the newpad hence when more "peening" is applied the pad splits before theunchamfered rivet assumes a conical shape to match the chamfered hole in thenew lining.To me it is quite obvious that the rivets should be chamfered under theheads then they just may be long enough to "PEEN" OVER BEHIND THE PLATE.Otherwise just supplying longer unchamfered rivets will still split thepads?Any one overcome this problem ? and how ? I'd be delighted to hear.RegardsBob Harrison. - The Europa-List Email Forum - --> http://www.matronics.com/Navigator?Europa-List - MATRONICS WEB FORUMS - --> http://forums.matronics.com - List Contribution Web Site - Thank you for your generous support! -Matt Dralle, List Admin. --> http://www.matronics.com/contribution [b]
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