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Matt Dralle
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Joined: 08 Nov 2005
Posts: 25627
Location: Livermore CA USA
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 Posted: Sun Feb 28, 2010 12:10 pm Post subject: Photos Of CS Prop Bolt Safety Wiring...? |
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Does anyone have any close-up photos of how they safety wired the prop bolts on a Hartzell CS prop? You have to run the safety wire though those roll-pins. What a pain. If you have to pull the torque up from the bottom, it seems impossible to actually set twist. Maybe if I twist both ends first... Hum...
Anyway, some pics would be most appreciated!
Matt Dralle
RV-8 #82880 N998RV
http://www.mattsrv8.com - Matt's RV-8 Construction Blog
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Matt Dralle
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Matt Dralle
Site Admin
Joined: 08 Nov 2005
Posts: 25627
Location: Livermore CA USA
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| Posted: Sun Feb 28, 2010 3:33 pm Post subject: Photos Of CS Prop Bolt Safety Wiring...? |
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At 12:08 PM 2/28/2010 Sunday, Matt Dralle wrote:
| Quote: | Does anyone have any close-up photos of how they safety wired the prop bolts on a Hartzell CS prop? You have to run the safety wire though those roll-pins. What a pain. If you have to pull the torque up from the bottom, it seems impossible to actually set twist. Maybe if I twist both ends first... Hum...
Anyway, some pics would be most appreciated!
Matt Dralle
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Well, okay, so it wasn't quite as hard as I thought. It was still a pain though! Here are three pictures of the safety wiring I did on the Hartzell CS Prop bolts (photo of each pair of bolts). What do you guys think?
Best regards,
Matt Dralle
RV-8 #82880 N998RV
http://www.mattsrv8.com - Matt's RV-8 Construction Blog
| | - The Matronics RV-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
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Matt Dralle
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rick.mcbride(at)me.com
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| Posted: Sun Feb 28, 2010 4:53 pm Post subject: Photos Of CS Prop Bolt Safety Wiring...? |
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When my -8 was inspected the DAR told me the size of the prop bolts requires .040 safety wire. I had used .032. I didn't change the size and haven't had any issues. It was difficult enough using .032. I can't imagine the struggle with the thicker wire.
Rick McBride
On Feb 28, 2010, at 6:32 PM, Matt Dralle wrote:
| Quote: | At 12:08 PM 2/28/2010 Sunday, Matt Dralle wrote:
> Does anyone have any close-up photos of how they safety wired the prop bolts on a Hartzell CS prop? You have to run the safety wire though those roll-pins. What a pain. If you have to pull the torque up from the bottom, it seems impossible to actually set twist. Maybe if I twist both ends first... Hum...
>
> Anyway, some pics would be most appreciated!
>
> Matt Dralle
Well, okay, so it wasn't quite as hard as I thought. It was still a pain though! Here are three pictures of the safety wiring I did on the Hartzell CS Prop bolts (photo of each pair of bolts). What do you guys think?
Best regards,
Matt Dralle
RV-8 #82880 N998RV
http://www.mattsrv8.com - Matt's RV-8 Construction Blog
<2010.02.28 - RV-8 - Hartzell CS Prop Bolt Safety Wiring (1).jpg><2010.02.28 - RV-8 - Hartzell CS Prop Bolt Safety Wiring (2).jpg><2010.02.28 - RV-8 - Hartzell CS Prop Bolt Safety Wiring (3).jpg>
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khorton01(at)rogers.com
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| Posted: Sun Feb 28, 2010 5:21 pm Post subject: Photos Of CS Prop Bolt Safety Wiring...? |
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The manual for your prop should specify the required wire size. If it is
a Hartzell, I'm betting it will call for 0.032" wire. The manufacturer's
recommendation would trump anything your inspector might have lodged in
his brain.
Kevin Horton
Richard McBride wrote:
| Quote: |
When my -8 was inspected the DAR told me the size of the prop bolts requires .040 safety wire. I had used .032. I didn't change the size and haven't had any issues. It was difficult enough using .032. I can't imagine the struggle with the thicker wire.
Rick McBride
On Feb 28, 2010, at 6:32 PM, Matt Dralle wrote:
> At 12:08 PM 2/28/2010 Sunday, Matt Dralle wrote:
>
>
>> Does anyone have any close-up photos of how they safety wired the prop bolts on a Hartzell CS prop? You have to run the safety wire though those roll-pins. What a pain. If you have to pull the torque up from the bottom, it seems impossible to actually set twist. Maybe if I twist both ends first... Hum...
>>
>> Anyway, some pics would be most appreciated!
>>
>> Matt Dralle
>>
> Well, okay, so it wasn't quite as hard as I thought. It was still a pain though! Here are three pictures of the safety wiring I did on the Hartzell CS Prop bolts (photo of each pair of bolts). What do you guys think?
>
> Best regards,
> Matt Dralle
> RV-8 #82880 N998RV
> http://www.mattsrv8.com - Matt's RV-8 Construction Blog
> <2010.02.28 - RV-8 - Hartzell CS Prop Bolt Safety Wiring (1).jpg><2010.02.28 - RV-8 - Hartzell CS Prop Bolt Safety Wiring (2).jpg><2010.02.28 - RV-8 - Hartzell CS Prop Bolt Safety Wiring (3).jpg>
>
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khorton01(at)rogers.com
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| Posted: Sun Feb 28, 2010 5:46 pm Post subject: Photos Of CS Prop Bolt Safety Wiring...? |
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Matt Dralle wrote:
| Quote: | At 12:08 PM 2/28/2010 Sunday, Matt Dralle wrote:
> Does anyone have any close-up photos of how they safety wired the prop bolts on a Hartzell CS prop? You have to run the safety wire though those roll-pins. What a pain. If you have to pull the torque up from the bottom, it seems impossible to actually set twist. Maybe if I twist both ends first... Hum...
>
> Anyway, some pics would be most appreciated!
>
> Matt Dralle
>
Well, okay, so it wasn't quite as hard as I thought. It was still a pain though! Here are three pictures of the safety wiring I did on the Hartzell CS Prop bolts (photo of each pair of bolts). What do you guys think?
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They look fine. The only thing I would have done differently is to put
a piece of small diameter nylon tubing over the twisted safety wire to
keep it from wearing at the prop hub between the bolts. Note that this
isn't strictly required (it isn't called for in the manufacturer's
manuals, and many people don't do it), so I wouldn't redo things now.
You can add this touch after the first flight when you pull the prop to
switch to a shorter alternator belt to stop the alternator pulley from
rubbing on the lower cowling.
Kevin Horton
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chuck(at)chuckdirect.com
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| Posted: Tue Mar 02, 2010 10:53 am Post subject: Photos Of CS Prop Bolt Safety Wiring...? |
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Two at a time. Get a mechanic who makes a living safeting. I had two of
them working about two hours to do mine. One said he'd have it done in
fifteen minutes ... NOT. What a pain. It just takes time and a lot of
patience.
--
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