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Flap motor safety wire hole

 
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dfritz(at)bpgsim.com
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PostPosted: Mon Nov 06, 2017 4:29 pm    Post subject: Flap motor safety wire hole Reply with quote

Does anyone have a good tip for drilling the safety wire hole in the
barrel of the flap motor.  The instructions say do not remove the end as
it is factory set.  However I would think keeping track of the number of
turns it is unscrewed should be easy to do. Drilling with a 1/16" drill
into steel seems like a good way to buy drill bits.  Am I stressing over
a mole hill?

David


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larkrv10(at)gmail.com
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PostPosted: Mon Nov 06, 2017 5:04 pm    Post subject: Flap motor safety wire hole Reply with quote

David just go nice  and steady, slow etc with a new bit.  Shouldn’t be a problem at all.
Rick
#40956
C-GDMH

Sent from Mail for Windows 10

From: David J. Fritzsche (dfritz(at)bpgsim.com)
Sent: November 6, 2017 7:32 PM
To: RV-10 Matronics (rv10-list(at)matronics.com)
Subject: Flap motor safety wire hole


--> RV10-List message posted by: "David J. Fritzsche" <dfritz(at)bpgsim.com>


Does anyone have a good tip for drilling the safety wire hole in the
barrel of the flap motor. The instructions say do not remove the end as
it is factory set. However I would think keeping track of the number of
turns it is unscrewed should be easy to do. Drilling with a 1/16" drill
into steel seems like a good way to buy drill bits. Am I stressing over
a mole hill?

David

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Greg McFarlane



Joined: 12 Apr 2012
Posts: 36
Location: Albany Western Australia

PostPosted: Tue Nov 07, 2017 2:33 am    Post subject: Re: Flap motor safety wire hole Reply with quote

To Comply with SB 07-4-12 ....... I drilled straight in (parallel to jackscrew) just to clear the rod end safety jam nut about 5/16 then vertically down to capture the previous hole. That minimised the chance of bursting out trying to drill an angled hole. As well as the safety wire, most over here are also making a small ally fitting of appropriate gauge to lay alongside the jackscrew and the rod end, with a hole large enough to allow the normal tightening of flap bolt on the rod end ball, then at the jackscrew end, bent to go around the jackscrew and secured with a clamp. Might be overkill but that’s what is being done. Cheers from Western Australia 🇦🇺

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glastar(at)gmx.net
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PostPosted: Tue Nov 07, 2017 5:42 am    Post subject: Flap motor safety wire hole Reply with quote

Greg, any picture Smile

On 07.11.2017 11:33, Greg McFarlane wrote:
Quote:


To Comply with SB 07-4-12 ....... I drilled straight in (parallel to jackscrew) just to clear the rod end safety jam nut about 5/16 then vertically down to capture the previous hole. That minimised the chance of bursting out trying to drill an angled hole. As well as the safety wire, most over here are also making a small ally fitting of appropriate gauge to lay alongside the jackscrew and the rod end, with a hole large enough to allow the normal tightening of flap bolt on the rod end ball, then at the jackscrew end, bent to go around the jackscrew and secured with a clamp. Might be overkill but that’s what is being done. Cheers from Western Australia 🇦🇺



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Greg McFarlane



Joined: 12 Apr 2012
Posts: 36
Location: Albany Western Australia

PostPosted: Tue Nov 07, 2017 8:52 pm    Post subject: Re: Flap motor safety wire hole Reply with quote

Unfortunately no picture, and a bit hard to get into the tunnel area to get one quickly Rolling Eyes However Ally fitting in length is about inch and half along jackscrew and long enough to allow a approx3/8 hole (hole, large enough fit over the spacer) in rod end——-end.............Width, wide enough to allow for the 3/8 hole at one end, and cut wider back at the jackscrew end to allow “tabs” to be bent/wrapped around the shaft for extra grip, then secured with a clamp, adele or hose. Same effect as safety wire in that if the rod end jam nut was to come loose then the jackscrew would be restrained from turning because the fitting is secured by the standard mounting bolt. Just needs to fit snug along rod end and jackscrew and not interfere with the normal flap operation, especially the normal tightening of the rod end bolt. Greg

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