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601XL gear removal for seat modifications

 
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mhubel



Joined: 05 Sep 2009
Posts: 141

PostPosted: Sun Jan 10, 2010 7:58 am    Post subject: 601XL gear removal for seat modifications Reply with quote

I have been trying to see how the modifications in the updated plans and posted photo instructions can be done without removing the gear.
Has anyone actually put in the new brackets (6-ZU-3-4) under and on both sides of the seats (6B15-4 and 6B18-1).

It would seem that the seat bottoms (6B15-1) and the consul sides (6B18-1) have rivets that can only be removed and replaced by removing the landing gear. The photo guide does not seem to suggest at all that the landing gear be removed.

Putting in these new brackets without removing the pieces they attach to does not appear to be something that will lead to a professional result.

If anyone has finished this part, observations would be helpful. Zenith has not been very clear on their responses to my requests for information on this.


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Jabiru 3300
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Sensenich ground adj prop.
240 hr TAF
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Afterfxllc(at)aol.com
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PostPosted: Sun Jan 10, 2010 8:50 am    Post subject: 601XL gear removal for seat modifications Reply with quote

You can do it without removing the gear you just leave the bottom row attached and place the angles in from the bottom. But don't do it until you have replaced the center section because you can't bend the panels and it makes it nearly impossible to get the uprights back in.

If anyone has any questions they can give me a call or email me 502-644-8123

Jeff
[quote][b]


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z601c(at)anemicaardvark.c
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PostPosted: Sun Jan 10, 2010 10:50 am    Post subject: 601XL gear removal for seat modifications Reply with quote

Although I wasn't far enough along to have the gear installed, I reached the
same conclusion as you. I installed the rivets which are under the gear from
the bottom. The only clean way I could see to remove them would be to remove
the gear. Cutting off the rivets from the top is, in my case, likely to damage
the rivet holes and skin.

Even if they could be removed from the top, it would leave rivet fragments
flopping around under the gear. Then, when it comes time to install the new
rivets above the gear, it becomes problematic.

One of the advantages of an experimental aircraft is that you can vary the
approach to match your own convictions. However, this strikes me as belonging
in the category of something where it's tempting to take a shortcut to save
time, but the shortcut winds up taking more time later, and reduces the
overall quality of the work.

On Sunday 10 January 2010 09:58:43 mhubel wrote:
Quote:


I have been trying to see how the modifications in the updated plans and
posted photo instructions can be done without removing the gear. Has
anyone actually put in the new brackets (6-ZU-3-4) under and on both sides
of the seats (6B15-4 and 6B18-1).

It would seem that the seat bottoms (6B15-1) and the consul sides (6B18-1)
have rivets that can only be removed and replaced by removing the landing
gear. The photo guide does not seem to suggest at all that the landing
gear be removed.

Putting in these new brackets without removing the pieces they attach to
does not appear to be something that will lead to a professional result.

If anyone has finished this part, observations would be helpful. Zenith has
not been very clear on their responses to my requests for information on
this.

Quote:


--
========================================
Jim B. Belcher
BS,MS Physics
A&P/IA
General Radio Telephone Certificate
Instrument Rated Pilot
Retired Aerospace Technical Manager
601XL Builder
========================================


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mhubel



Joined: 05 Sep 2009
Posts: 141

PostPosted: Sun Jan 10, 2010 11:07 am    Post subject: Re: 601XL gear removal for seat modifications Reply with quote

Jeff,
I can sort of see how the angle brackets can be added to the seat bottoms with one end still attached although I don't think doing so will ever produce a really nice result. Removing the center consul does seem impossible however. The bottom is riveted right over the center of the gear. I suppose one could grind out the rivets from the wrong end and leave the rivet heads stuck in the landing gear channel. Again not an ideal solution.

Taking the gear off is not that hard. I am mainly trying to see if I am doing the whole thing wrong and that is leading to the need to remove the gear.
[quote="Afterfxllc(at)aol.com"]You can do it without removing the gear you just leave the bottom row attached and place the angles in from the bottom. But don't do it until you have replaced the center section because you can't bend the panels and it makes it nearly impossible to get the uprights back in.

If anyone has any questions they can give me a call or email me 502-644-8123

Jeff
Quote:
[b]


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_________________
Mark Hubelbank
N708HU
CH601XL
Jabiru 3300
Rotec TBI 40-3 carb
Sensenich ground adj prop.
240 hr TAF
Pictures at photo.hubbles.com
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afterfxllc(at)aol.com
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PostPosted: Mon Jan 11, 2010 12:38 pm    Post subject: 601XL gear removal for seat modifications Reply with quote

I did it with the bottom row riveted and it did produce the same result as if I had taken 3 hours to remove the gear ,rivets, and brake lines. The access hole allows you to clamp the angles in place then drill. Not very hard at all.

Jeff
[quote][b]


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mhubel



Joined: 05 Sep 2009
Posts: 141

PostPosted: Thu Jan 21, 2010 1:31 pm    Post subject: Re: 601XL gear removal for seat modifications Reply with quote

For what it is worth, we decided to remove the gear. I still had all the supports that were used while the fuselage was being supported without the gear during construction so it was less than an hour to take the gear off. Then perhaps another hour to get all the additional rivets out that were in the way. While this may be a break even in time, I think it will lead to a nicer job.

I also intend to put the center console back in in a manner that partial removal is possible. I have never worked on a plane before where there was no nice way to properly fasten wires that went through to the aft area. I think this will be much more professional.


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_________________
Mark Hubelbank
N708HU
CH601XL
Jabiru 3300
Rotec TBI 40-3 carb
Sensenich ground adj prop.
240 hr TAF
Pictures at photo.hubbles.com
Back to top
View user's profile Send private message  
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