VansAirForceForums  
Home > VansAirForceForums

- POSTING RULES
- Donate yearly (please).
- Advertise in here!

- Today's Posts | Insert Pics

  #1  
Old 04-12-2017, 01:21 PM
Robert M's Avatar
Robert M Robert M is offline
 
Join Date: Feb 2006
Location: South Carolina
Posts: 628
Default No hole for cotter key in axle

I am trying to follow a punch list to wrap up the things that need to be done. On that list was to tighten the axle nuts and put in the cotter keys. Wait a minute, no holes!

Am I supposed to drill these holes? I don't know I can be that accurate with a hand drill 'cause the landing gear AIN'T comin' off this plane.

Without the cotter pin the nut WILL come off and there is no place to safety wire the bolt that holds the wheel pant on.

I guess I can tighten the nut up really tight, drill one side of the axle and then the other.

Has anyone else encountered this problem? If so, how did you resolve it?

Thanks,
__________________
"Pilots: Looking down on people since 1903"
(author unknown)
RV-9, N556RM, O-320, Dual PMags, Catto 3 blade.
99% finished - flight ready with minor "cosmetic" items remaining.
Mosquito XEL kit in hangar waiting on RV-9 to fly.
Reply With Quote
  #2  
Old 04-12-2017, 01:28 PM
Mel's Avatar
Mel Mel is offline
 
Join Date: Mar 2005
Location: Dallas area
Posts: 9,599
Default

Yes, you are to drill the cotter pin hole. It's always been this way.
Do not tighten the nut "really tight". Tighten until there is no slop.
Best done with the wheel off the ground so you can make sure that the bearing is properly seated.
And yes, drill one side, pin the nut and drill the other side.
__________________
Mel Asberry..DAR since last century
A&P/EAA Tech Counselor/Flight Advisor
Specializing in Amateur-Built and Light-Sport Aircraft
<n168tx(at)flytx.net>
North Texas (8TA5)
RV-6 Flying since 1993
175hp O-320
3-Blade Catto (since 2003)
FRIEND of the RV-1
Eagle's Nest Mentor

Last edited by Mel : 04-12-2017 at 01:31 PM.
Reply With Quote
  #3  
Old 04-12-2017, 01:41 PM
Robert M's Avatar
Robert M Robert M is offline
 
Join Date: Feb 2006
Location: South Carolina
Posts: 628
Default

Thanks Mel, I can handle that.
__________________
"Pilots: Looking down on people since 1903"
(author unknown)
RV-9, N556RM, O-320, Dual PMags, Catto 3 blade.
99% finished - flight ready with minor "cosmetic" items remaining.
Mosquito XEL kit in hangar waiting on RV-9 to fly.
Reply With Quote
  #4  
Old 04-12-2017, 01:54 PM
Tony Spicer Tony Spicer is offline
 
Join Date: Dec 2005
Location: Wilmington, NC
Posts: 513
Default

To keep the drill from walking, make a flat area where you want the hole to be using a Dremel and cutoff wheel, then center punch and drill.

Tony
Reply With Quote
  #5  
Old 04-12-2017, 02:08 PM
bruceh's Avatar
bruceh bruceh is offline
 
Join Date: Mar 2008
Location: Ramona, CA
Posts: 1,937
Default

I marked the spot on the axle threads where the hole needed to be drilled and drilled the hole without the nut in place. That way you don't create a burr from the drill that prevents you from unscrewing the nut. As noted above, you can file down the threads in that location, use a center punch and then the drill bit won't wander.

Once you get the hole drilled on each side, then run the bit through both holes at the same time to square up the angle of the hole. Otherwise, when you try to poke the cotter pin through, it might aim up or down and miss the other side on the way out.
__________________
Bruce Hill
RV-9A N5771H now FLYING!
http://www.overthehills.com/RV-9A-Project
APRS Tracking for KJ6YRP and New Flying Blog
2017 VAF donator
EAA Tech Counselor
Reply With Quote
  #6  
Old 04-12-2017, 02:52 PM
alpinelakespilot2000 alpinelakespilot2000 is offline
 
Join Date: Jan 2005
Posts: 3,364
Default

Quote:
Originally Posted by Robert M View Post
I am trying to follow a punch list to wrap up the things that need to be done. On that list was to tighten the axle nuts and put in the cotter keys. Wait a minute, no holes!

Am I supposed to drill these holes? I don't know I can be that accurate with a hand drill 'cause the landing gear AIN'T comin' off this plane.

Without the cotter pin the nut WILL come off and there is no place to safety wire the bolt that holds the wheel pant on.

I guess I can tighten the nut up really tight, drill one side of the axle and then the other.

Has anyone else encountered this problem? If so, how did you resolve it?

Thanks,
You might check your instructions again, Robert. Somewhere they describe the process and necessity for doing this.
__________________
Steve M.
Ellensburg WA
RV-9 Flying, 0-320, Catto

Donation reminder: Jan. 2018
Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -6. The time now is 03:38 PM.


The VAFForums come to you courtesy Delta Romeo, LLC. By viewing and participating in them you agree to build your plane using standardized methods and practices and to fly it safely and in accordance with the laws governing the country you are located in.