Hi, Have you tried adapting a sash clamp to press the tube into the
hole. This is how I fitted mine but before mounting the frame in the
fuselage which made the job easer. You would need to cut the sash clamp
bar down to just the right length as the unused length would get in the
way.
Failing that remove the 2 fixing bolts holding the frame onto the
cockpit module and slide a suitable length high tensile bolt though the
tube put a large plate washer and nut on the end and as you tighten it
up you will draw the tube into the frame.
If you must use a hammer try to position a heavy weight behind what you
are hitting to act as a reaction. Best of luck Richard
From: Rob Housman
To: europa-list@matronics.com
Sent: Tuesday, September 30, 2008 3:32 PM
Subject: RE: Europa-List: Mod 72 - Undercarriage mounting frame
strengthening
Craig & Martin:
Good suggestion in re: taking advantage of thermal effect on size.
However, in my case one pin is in and the other is far enough in to
preclude removal and starting over.
Prior to starting the Mod I measured both pins and confirmed that each
was less than 16.5mm (PRIOR to applying the etch primer) and not
tapered, and the hand reamer was fabricated by a local shop with whom
I've done business for a long time, and it is to size. Were it not for
the factory's instruction to paint the pins (and my foolishness in
following that suggestion) the pins would have fit easily.
Best regards,
Rob Housman
Irvine, CA
Europa XS Tri-Gear
A070
Airframe complete
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of craig
bastin
Sent: Tuesday, September 30, 2008 4:07 AM
To: europa-list@matronics.com
Subject: RE: Europa-List: Mod 72 - Undercarriage mounting frame
strengthening
If you can get the tubes out again, easier said than do probably, I
would suggest a shrink fit, if you are happy
the insert tubes are the same size as the ID of the tubes after
reaming then throwing the tubes in the freezer
and GENTLY heating the UC frame should give you the clearance you need
long enough to get them home
mine took about 4 decent taps and they were home, mind you i did use a
lathe and skimmed the tubes till they
were within .01mm, the heating/cooling dropped the tube size to about
.2mm smaller than the UC frame. I believe
quite a few have opted for this method with good results
craig
-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com]On Behalf Of Rob Housman
Sent: Tuesday, 30 September 2008 12:52 AM
To: europa-list@matronics.com
Subject: Europa-List: Mod 72 - Undercarriage mounting frame
strengthening
Having been working mostly on those factory mandated or recommended
modifications of late, I now realize that it is much easier to build an
airplane than it is to repair one. Mod 70 (Mass balance arm) was merely
tedious, working deep in the tailcone, one handed, through small access
holes, but Mod 73 (Tailplane retention) and Mod 59 (Shimmy damper) did
not go well when following the written procedures, and now with Mod 72
there is more of that wonderful English understatement: "Insert the
tubes - they will probably need a light tap to fit them" it says in the
procedure. English hammers must be considerably larger and heavier than
American hammers (or 16.5 mm reamers must be a bit larger) because "a
light tap" does nothing. After pounding away for entirely too long, and
peening the ends of the tubes where the hammer repeatedly struck, I
finally fabricated a steel spud to put between the offending pin and the
hammer. This made it easier to keep pounding with less damage to the
pins, or to the adjacent smaller diameter tubes to which the engine
mounts attach if I were to miss the target. The steel spud is starting
to look like a mushroom from all of those "light taps."
I should have retained my initial skepticism regarding the fit of
painted tubes, which after painting with etch primer are larger than
16.5mm, but no, I foolishly believed that the factory had actually tried
this procedure. Well folks, the paint makes the pin almost impossible
to fit.
Fearing complaints from my neighbors about so much hammering on a
peaceful Sunday afternoon I finally quit pounding with the intention of
resuming mid-day today when most of my neighbors will be away at work.
As of yesterday afternoon one pin was snug against the bolt attaching
the frame to the fuselage and the other was still barely halfway home.
Now, if I could find one of those English hammers at Home Depot..
Best regards,
Rob Housman
Irvine, CA
Europa XS Tri-Gear
A070
Airframe complete
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Checked by AVG - http://www.avg.com
9/30/2008 11:03 AM
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