|
-
POSTING RULES

-
Donate yearly (please).
-
Advertise in here!
-
Today's Posts
|
Insert Pics
|

07-12-2013, 01:58 PM
|
|
|
|
Join Date: Nov 2012
Location: Mosheim Tn
Posts: 30
|
|
Looking good,ill race ya too the breakfast table when you get done!
|

07-12-2013, 03:49 PM
|
 |
|
|
Join Date: Sep 2005
Location: Dothan, Alabama
Posts: 1,487
|
|
Quote:
Originally Posted by Brantel
...Next is the safety wire. I am using 0.032" per the manual. I needed to research how in the world this is possible when one of the pairs ends up with the roll pin radial to the hub. There is no way to get the wire in the reverse hole without moving the nut. So I plan to follow the many post here in the archives and loosen the nut a bit, put the wire in and then torque it back to spec. That is next....
|
I have never had to loosen/torque the nuts to lock wire. It just requires some up front planning.
__________________
Alton DeWeese
N526RV RV7A Tip Up, IO360 180 W/Hartzel BA prop.
Flying ~950 hours since Aug 2010
N4IDH
Construction Log
?The secret of getting ahead is getting started. The secret of getting started is breaking your complex overwhelming tasks into small manageable tasks, and then starting on the first one.?
?Mark Twain
|

07-12-2013, 05:59 PM
|
 |
|
|
Join Date: Mar 2006
Location: Newport, TN
Posts: 7,496
|
|
Quote:
Originally Posted by AltonD
I have never had to loosen/torque the nuts to lock wire. It just requires some up front planning.
|
Well do tell cause I ain't seeing it....I was a UH60 helicopter mechanic in the Army and used to think I could safety anything till I ran across these prop hubs....
I would love to do it without messing with the nut.
It seems that some people get lucky and the roll pin ends up in a spot where you can get the wire in on the inside of one of the nuts. I got unlucky and most of mine are pointing radially toward the hub.
Last edited by Brantel : 07-14-2013 at 07:09 PM.
|

07-13-2013, 05:54 AM
|
 |
|
|
Join Date: Mar 2006
Location: Newport, TN
Posts: 7,496
|
|
Thanks to the extra motivation Alton gave me to give it an honest effort, the safety wire complete! Total time to install = 35 minutes...
In the end I only had loosen and re-torque only one nut. There was just no way that one was going in due to the way it was pointing. I was able to plan ahead on the others and find a combination of adjacent nuts that would allow me to make it happen.

Last edited by Brantel : 07-14-2013 at 07:10 PM.
|

07-13-2013, 06:23 AM
|
 |
|
|
Join Date: Aug 2005
Location: Dallas/Ft Worth, TX
Posts: 5,686
|
|
From the Hartzell Manual:
Torque the 1/2 inch propeller mounting studs (dry) in accordance with Table 3-1, Figure 3-1, and Figure 3-2. Safety wire the studs in pairs (if required by the aircraft maintenance manual) at the rear of the propeller mounting flange. Refer to Figure 3-6
"My" aircraft maintenance manual does not call out safety wire
I check the torque at each annual and remove the prop every few years to clean out the hub and inspect the electronic ignition crank sensor board.
__________________
Walt Aronow, DFW, TX (52F)
EXP Aircraft Services LLC
Specializing in RV Condition Inspections, Maintenance, Avionics Upgrades
Dynamic Prop Balancing, Pitot-Static Altmeter/Transponder Certification
FAA Certified Repair Station, AP/IA/FCC GROL, EAA Technical Counselor
Authorized Garmin G3X Dealer/Installer
RV7A built 2004, 1700+ hrs, New Titan IO-370, Bendix Mags
Website: ExpAircraft.com, Email: walt@expaircraft.com, Cell: 972-746-5154
|

07-13-2013, 06:52 AM
|
 |
|
|
Join Date: Mar 2006
Location: Newport, TN
Posts: 7,496
|
|
Quote:
Originally Posted by Walt
From the Hartzell Manual:
Torque the 1/2 inch propeller mounting studs (dry) in accordance with Table 3-1, Figure 3-1, and Figure 3-2. Safety wire the studs in pairs (if required by the aircraft maintenance manual) at the rear of the propeller mounting flange. Refer to Figure 3-6
"My" aircraft maintenance manual does not call out safety wire
I check the torque at each annual and remove the prop every few years to clean out the hub and inspect the electronic ignition crank sensor board.
|
Thanks Walt, I saw many post arguing this back and forth. I just feel better with em tied although I really don't think they would ever go anywhere in a million years.
|

07-13-2013, 11:33 AM
|
 |
|
|
Join Date: Dec 2011
Location: Kirkland, WA
Posts: 886
|
|
Those other bolts seem to have quite a stack of washers under them. To get the nut above a non threaded area?
Nice work, as usual!
|

07-13-2013, 01:39 PM
|
 |
|
|
Join Date: Mar 2006
Location: Newport, TN
Posts: 7,496
|
|
Quote:
Originally Posted by grayforge
Those other bolts seem to have quite a stack of washers under them. To get the nut above a non threaded area?
Nice work, as usual!
|
Apparently this is because Van's request long bolts on their prop orders and this is to prevent the nut from bottoming out on the bolt shank. It is in the directions to do it this way so I followed them.
Last edited by Brantel : 07-13-2013 at 05:01 PM.
|

07-13-2013, 02:04 PM
|
 |
|
|
Join Date: Mar 2006
Location: Newport, TN
Posts: 7,496
|
|
Bad news....no test flight today!
Test ran the engine and the used governor that I purchased operates backwards. Push the knob in and it goes to course pitch, pull it out fine.
It must be setup for a counter weighted pressure to decrease pitch prop.
Moral of the story...never trust anything when it is used. I tried to figure out the part number before I bought but could never find the details on the number. I don't think the guy that sold it to me knew it was incorrect. I think the guy that sold it to him possibly him knew it was....
I bought it with the drive adapter with a brand new gear for less than those parts go for used so I am not out much $... I figured it was worth the risk and now I have to find a good governor.
I have a lead on a used PCU5000 but I trust this guy 100%.
Last edited by Brantel : 07-13-2013 at 04:59 PM.
|

07-13-2013, 02:17 PM
|
 |
|
|
Join Date: Sep 2006
Location: Townsend, Montana
Posts: 3,179
|
|
dang it! I was hoping for a big grin picture
__________________
Retired Dam guy. Life is good.
Brian, N155BKsold but bought back.
|
| Thread Tools |
Search this Thread |
|
|
|
| Display Modes |
Linear Mode
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
All times are GMT -6. The time now is 12:32 AM.
|