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Tiger Wheels

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tscott165(at)cableone.net
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Posted: Sat Jun 02, 2007 2:40 pm Post subject: Tiger Wheels

I have a main wheel off to fix a flat and greased the bearings while  

I was at it. This is a 1977 Tiger. Have a question about the washers  

and felt seals. The pictures on Bondline did not help. On the inner  

part the bearing goes in then a washer 153-0400, felt seal, another  

153-0400, and snapring just like my old Cherokee. The outer is  

different. Seal retainer 153-01500 is C-shaped and holds the felt  

ring. I assume felt faces outward and the metal surface of the washer  

faces inward, then the 1530300 washer and snapring. Believe me I was  

careful taking this apart but the parts were mixed, not at all like  

in the parts manual.

Anybody care to share the correct reassembly order. PIctures in the  

parts and service manuals are not in fine enough detail.



Scott

AA5B, 28339

Boise, Id

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flyv35b(at)minetfiber.com
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Posted: Sat Jun 02, 2007 4:24 pm Post subject: Tiger Wheels

The outer is

 	  Quote: 	
		   different. Seal retainer 153-01500 is C-shaped and holds the felt  ring. I 

 assume felt faces outward and the metal surface of the washer  faces 

 inward, then the 1530300 washer and snapring.


	


The felt faces inward and runs against the washer, which is slightly smaller 

in diameter than the washer on the brake disc side.



Cliff  A&P/IA 

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tscott165(at)cableone.net
Guest

Posted: Sat Jun 02, 2007 5:59 pm Post subject: Tiger Wheels

Thank you Cliff. So the flat washer goes in against the bearing, then  

the retainer with the felt ring, felt side first, then the snap ring,  

if I understand you correctly. What exactly does the felt ring seal?  

Just keep grease from slinging out?

Scott

On Jun 2, 2007, at 6:24 PM, flyv35b wrote:

 	  Quote: 	

 <flyv35b(at)minetfiber.com>

 The outer is

> different. Seal retainer 153-01500 is C-shaped and holds the felt   

> ring. I assume felt faces outward and the metal surface of the  

> washer  faces inward, then the 1530300 washer and snapring.

 The felt faces inward and runs against the washer, which is  

 slightly smaller in diameter than the washer on the brake disc side.

 Cliff  A&P/IA

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GrummanDude

Joined: 15 Jan 2006
Posts: 926
Location: Auburn, CA

Posted: Sat Jun 02, 2007 7:37 pm Post subject: Tiger Wheels

I see more of these installed wrong than any other piece on the plane.  

It's right up there with the nose gear stuff being installed wrong.



When installed correctly, the larger diameter 'washers', both inside 

and outside, go on the inside of the wheel.  If in doubt, make sure 

they slide over the axle all the way past the step in the axle.  If it 

catches on the step on the axle, and won't go past it, it's wrong.  Use 

Shell 22 grease.  The idea of the inner felt seal is that the inside 

diameter of the felt seal rides on the portion of the axle just past 

the step.  It seals against the axle.



The outer washer has a slightly smaller outside diameter and a smaller 

inside diameter.  It should NOT slide over the step on the axle.  The 

idea here is that the outer washer provides the surface against which 

the nut crushes the roller bearing against the step on the axle.  

Properly adjusted, you'll get about 1 to 2 rotations out of the tire 

when rotated firmly.  Any looser than that and there will be no preload 

on the bearing.  By-the-way, that bearing is so over engineered for its 

purpose that there is no way to describe it.  The dust seal, that felt 

in the cup, rotates with the wheel.  The washer does not; it is crushed 

between the inner bearing roller and the nut.  Dust is kept from 

bearing along the moving surface.



After packing the bearing with Shell 22, place the bearing in the race, 

pack some grease in the area around the outside of the beaing, push the 

washer in to squeeze out the excess grease, use some of that grease to 

lightly coat the felt (yea, I know the instructions say to use 10 

weight oil.  That will just run all over the place.) and then install 

(1) the other washer on the inside or (2) the 'c' shaped washer with 

the dust seal, and the snap ring.



When tightening the nut remember: the grease will take up some of the 

pre-load that will go away after the first landing.  The distance 

between the flats won't let you over tighten the bearing.  Make it 

snug,  1 to 2 rotations of the tire.



Good luck

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_________________
Gary
AuCountry Aviation
Home of Team Grumman

flyv35b(at)minetfiber.com
Guest

Posted: Sun Jun 03, 2007 4:58 am Post subject: Tiger Wheels

Yes, that's correct.  The rotation should occur between the felt and ring 

surface.  It does keep most of the grease from slinging out and dirt from 

getting in but is not what I would call a good seal.  The inner felt seal 

and two retainers on the brake side seem to do a better job.  The best 

arrangement that I have seen is a sealed bearing where the seal is bonded to 

the bearing cone and rubs and seals on the edge of the bearing race (the 

cup) as I have on my Bonanza.  It works far better and I don't think the 

cost is much more or maybe less than all the parts combined on the other 

configuration.



Cliff

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Discover

Joined: 26 Feb 2007
Posts: 429

Posted: Mon Jun 04, 2007 7:51 am Post subject: Tiger Wheels

Hi Scott,



While this topic has been covered quite well already, I have uploaded the 

Tiger Aircraft LLC Maintenance Manual Chapter 32 which covers the Main 

Wheels beginning on page 14 with a nice diagram on page 16 that you may find 

useful.



http://members.cox.net/923te/CHAPTER%2032_TEXT%20LANDING%20GEAR.pdf



Regards,

Ned

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currydon(at)bellsouth.net
Guest

Posted: Mon Jun 04, 2007 8:09 am Post subject: Tiger Wheels

Wow, that has a lot more detail than the old AA5B version I have!  Is the

entire manual available online?  What about the Parts Man?  

Thanks in advance,

Don/AG5B



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