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03-01-2009, 11:24 AM
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Join Date: Oct 2005
Posts: 75
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Rudder brake pedals and Plastic block
I'm trying to mount the rudder and brake pedals (WD 655L and WD655R) in the hard plastic blocks(F6116) The pre drilled holes are really tight. Does a person use a hammer to tap them in or should I sand down the WD 655L & R so that the fit just slides together. Also if I tap it together will it become loser with time.
Thanks
Russel Koch
RV9A QB fuselage
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03-01-2009, 11:34 AM
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Join Date: Jan 2005
Location: Louisville, Ga
Posts: 7,840
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Hi Russel...
....we just went throught the same thing on our -7 yesterday. If the tubes are rust-free, the fit is still snug but you'd be surprised at how little foot pressure it takes since you've got quite a bit of leverage. Yep, they're snug and sometimes it takes some tapping.
Regards,
__________________
Pierre Smith
RV-10, 510 TT
RV6A (Sojourner) 180 HP, Catto 3 Bl (502Hrs), gone...and already missed
Air Tractor AT 502B PT 6-15 Sold
Air Tractor 402 PT-6-20 Sold
EAA Flight Advisor/CFI/Tech Counselor
Louisville, Ga
It's never skill or craftsmanship that completes airplanes, it's the will to do so,
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Dues gladly paid!
Last edited by pierre smith : 03-01-2009 at 11:35 AM.
Reason: grammar
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03-01-2009, 11:35 AM
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Join Date: Jan 2007
Location: Battleground
Posts: 4,348
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Make sure they are not powder coated there
The ends of the weldment going into the block should not be powder coated. This has been a problem in the past. If they are, simply mask off and remove the powder coating with paint remover. This will give you the clearance you need.
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Smart People do Stupid things all the time. I know, I've seen me do'em.
RV6 - Builder/Flying
Bucker Jungmann
Fiat G.46 -(restoration in progress, if I have enough life left in me)
RV1 - Proud Pilot.
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03-01-2009, 09:11 PM
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Join Date: Jan 2008
Location: Euless, TX
Posts: 64
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Quote:
Originally Posted by rkochcyxh
I'm trying to mount the rudder and brake pedals (WD 655L and WD655R) in the hard plastic blocks(F6116) The pre drilled holes are really tight. Does a person use a hammer to tap them in or should I sand down the WD 655L & R so that the fit just slides together. Also if I tap it together will it become loser with time.
Thanks
Russel Koch
RV9A QB fuselage
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On my 7 they were tight but I could drive them on by hand, oh and the holes are not normal to the surface so it went a lot smoother after I got em aligned.
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03-02-2009, 05:28 AM
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Join Date: Mar 2006
Location: Newport, TN
Posts: 7,496
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Yep make sure you take Sully's advice as these are angled to match the shape of the fuse.
Make sure there are no burrs/rough edges on the tubes.
One thing I did was found a socket that was just too large to go into the hole. I heated the block up with a heat gun and inserted the socket. Once the block cooled, I pulled the socket and the brake tubes slid right in and work nice. Don't overdo it with this method as you don't want sloppy holes either.
Good luck.
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03-03-2009, 05:16 AM
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Join Date: Aug 2005
Posts: 445
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These blocks are near impossible to put on the rudder pedal tubes with just your bare hands. So I remembered how my Dad would used his rubber hammer to gently put kitchen cabinet parts together with his rubber hammer. Here I put the first Bearing Block on the floor and positioned the rudder pedal tubes over the holes. Then I gently tapped the end of the tubes into the block.
Same thing here. I flipped the rudder pedal tubes over and gently tapped the other block on to the other end of the tubes.
Here my log entry:
http://www.smittysrv.com/more_stuff.asp?ID=586
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Smitty
Last edited by SmittysRV : 03-03-2009 at 05:19 AM.
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03-03-2009, 07:28 AM
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Join Date: Nov 2006
Location: Lewistown
Posts: 161
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or the other approch
I like to polish the ends of the steel tubing until they slip into the plastic block. I like reduced friction.
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Noel Simmons (repeat builder) just ordered my 40th it's an 8!
406-538-6574
A&P CFI EAA Tech/EAA flight adviser
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03-03-2009, 03:47 PM
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Join Date: Feb 2005
Location: 20km outside of Zurich, Switzerland
Posts: 468
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Check dimension first!
Hello
Check first that there is no burr on the plastic and on the steel tube. mesure the dimension of the tube on up to 4 positions, you will find the tube is NOT round. This due to the welding process. I just remove a bit material with a fine file and cloth on the "high" spots, untill the tubes rotate more freely in the plastic, but dont overdoo it!
Also you should NOT use mineral oil as lubricant on plastic, but sorry, I cant remember the right stuff, silicon based or syntetic ... not sure.
regards, Dominik
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