Time to replacet tires

[BDPetersen]

In 50+ years of assisted annuals, I've never seen a wheel disassembled for inspection. 

[Andy95W]

  On 3/9/2016 at 12:34 AM, BDPetersen said:

In 50+ years of assisted annuals, I've never seen a wheel disassembled for inspection. 

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In all my years of doing annuals or working with owners, I've never disassembled wheels or insisted that they be disassembled without cause, i.e., corrosion, a bad tire, a punctured tube, etc.. I think Mike Busch would include this under unnecessary assembly and disassembly.

I am very interested in hearing others' practices, though.

[Yetti]

What is the saying "The wheel bearings on a plane are the most over greased over maintained item in aviation"

[Marauder]

  On 3/9/2016 at 3:32 AM, N1395W said:

  On 3/9/2016 at 12:34 AM, BDPetersen said:

2 hours ago, BDPetersen said: In 50+ years of assisted annuals, I've never seen a wheel disassembled for inspection. 

In all my years of doing annuals or working with owners, I've never disassembled wheels or insisted that they be disassembled without cause, i.e., corrosion, a bad tire, a punctured tube, etc.. I think Mike Busch would include this under unnecessary assembly and disassembly.

I am very interested in hearing others' practices, though.

  On 3/9/2016 at 3:44 AM, Yetti said:

What is the saying "The wheel bearings on a plane are the most over greased over maintained item in aviation"

You mean you don't do this every year?

I don't think there ever has been a year that my mechanic skipped it. Even on the owner assisted annuals I did, I got this job:

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[Hank]

  On 3/9/2016 at 3:49 AM, Marauder said:

 

You mean you don't do this every year?

I don't there ever has been a year that my mechanic skipped it. Even on the owner assisted annuals I did, I got this job:

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Just did this in January, at annual.  

[jetdriven]

  On 3/9/2016 at 12:34 AM, BDPetersen said:

In 50+ years of assisted annuals, I've never seen a wheel disassembled for inspection. 

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Why disassemble a serviceble wheel and tire for annual, and, for the reverse, why not inspect a wheel when it comes apart for the tire change? # years ago we stripped, cleaned, etched, magnadyned, prekote, and painted the wheels when they came apart for tires.

[Andy95W]

  On 3/9/2016 at 3:49 AM, Marauder said:

 

You mean you don't do this every year?

I don't there ever has been a year that my mechanic skipped it. Even on the owner assisted annuals I did, I got this job:

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Yes, I repack wheel bearings, every single annual, whether it needs it or not.

 I was referring to actually DISASEMBLING the wheel, removing the tire, and inspecting the wheel, which is what BDPetersen and I thought M201MKTurbo said in his posting on page 2.

[N201MKTurbo]

43-13-1b 9-7-e

[Andy95W]

  On 3/9/2016 at 4:51 AM, N201MKTurbo said:

43-13-1b 9-7-e

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 I guess I don't see where the wheel needs to be disassembled annually:

e. Wheels. Inspect the wheels periodi- cally for cracks, corrosion, dents, distortion, and faulty bearings in accordance with the manufacturer’s service information. In split- type wheels, recondition bolt holes which have become elongated due to some play in the through-bolt, by the use of inserts or other FAA-approved means. Pay particular attention to the condition of the through-bolts and nuts. Carefully inspect the wheels used with tubeless tires for damage to the wheel flange and for proper sealing of the valve. The sealing ring used between the wheel halves should be free of damage and deformation. When bolting wheel halves together, tighten the nuts to the proper torque value. Periodically accomplish an inspection to ensure the nuts are tight and that there is no movement between the two halves of the wheel. Maintain grease retaining felts in the wheel assembly in a soft, absorbent condition. If any have become hardened, wash them with a petroleum-base cleaning agent; if this fails to soften them, they should be re- placed. 

========================================

All it says in FAR 43 app. D, Scope of an Annual or 100 hour Inspection, is this:

(7) Wheels - for cracks, defects, and condition of bearings.

[N201MKTurbo]

Well, I just wrote this long reply, but my iPad ate it....

good night

[cnoe]

Tapatalk does that. Unless you're good with html (I'm not) editing a post is a real pain too.

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[Andy95W]

  On 3/9/2016 at 5:30 AM, N201MKTurbo said:

Well, I just wrote this long reply, but my iPad ate it....

good night

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I hate it when that happens.  I really wasn't trying to start anything.  I've worked for 5 different IAs in 3 different shops (one of whom was flat out the biggest stickler for detail I've ever met) and none told me to disassemble the wheel halves for an annual. Pull the wheels, inspect, and regrease- yes. And now that I'm the IA, that's what I still do.

So now I'm wondering what everyone else does. 

Edited March 9, 2016 by N1395W

[N201MKTurbo]

When you have the wheel on the bench, it only takes about 5 min to take it apart. Then I wipe all the grease off and clean them in the parts washer. I have found that the cad plating flakes off sometimes and the magnesium starts to corrode. You can't see this well through the bearing holes.

I read the Cleveland maintenance manual last night. It requires greasing the bearings every annual and goes on to talk about inspections. It doesn't specifically say to disassemble the wheels, but some of the inspections seem to require it.

I must have learned from a stickler. I have done it for the last 35 years with four different IAs looking in and no one said anything one way or the other. They probably thought I was just being through and didn't see a problem with it. 

[M20F]

  On 3/9/2016 at 3:10 PM, N201MKTurbo said:

When you have the wheel on the bench, it only takes about 5 min to take it apart.

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You must have the magic touch because busting the bead (Mooney or otherwise) for me is either 30 seconds or 2000hrs of torture.

[N201MKTurbo]

I put the wheel on the ground on a piece of plywood. Then I stand on the tire with my shoes as close to the rim as possible and bounce up and down. If it doesn't come off in about 10 sec. I will slide my ATS skin wedge between the tire and the rim, pry up pushing the tip of the tool down on the tire. This will not scratch the wheel or the tire. It will pop right off.

[markejackson02]

  On 3/9/2016 at 3:56 PM, N201MKTurbo said:

I put the wheel on the ground on a piece of plywood. Then I stand on the tire with my shoes as close to the rim as possible and bounce up and down. If it doesn't come off in about 10 sec. I will slide my ATS skin wedge between the tire and the rim, pry up pushing the tip of the tool down on the tire. This will not scratch the wheel or the tire. It will pop right off.

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Searching FAR 43 for mentions of jumping up and down on the tire....

[N201MKTurbo]

This is from the Cleveland manual:

I interpret "Press in even increments" as bounce with shoes.

[carusoam]

Notes on Losing a post when the iPad runs out of charge....

This used to happen with frequency, without fail, just about every night.  With fair warning given at 10 and 5% charge.  The last post of the evening would evaporate.

Important: Something has changed recently that retains most of what you wrote. You just have to specifically look for it. I believe it may be by refreshing the screen, then go all the way to the bottom where the editing is done.  It usually shows up 9 out of 10 nights.  You may lose the last sentence...

I am using an iPad Air running the latest IOS...

Hope that helps.

Best regards,

-a-

[Yetti]

I saw the price of new rims so very carefully plywood on the bottom then just used a manual bead breaker to work it off without scratching the rim.   Leverage is good thing.

[Mr Bill]

Hello All,

Bogart Aviation tire bead breaker. I have a similar one. Works great on aircraft, garden tractor, etc. tires.

Bill

Scan0001.pdf

[Yetti]

As much as I like tools....   The CB usually wins out with HF Tire Changer at $50.00 or less with the 20% off coupon.   And works when I have to wrestle an ATV tire onto a rim.  

http://www.harborfreight.com/manual-tire-changer-69686.html

 

 

[1524J]

So I guess I'm missing something.......or about to tell on myself........I just take the bolts out and air up the tube until the halves come apart. It doesn't take much air. 

[MyNameIsNobody]

Split rims have killed and maimed a LOT of humans.  Be VERY careful.  When they separate it can be catastrophic.

[DonMuncy]

If the two halves are stuck, loosen the bolts, but don't remove. Then air it up slowly. It will pop out to the bolts. Then deflate and take it apart.

[carusoam]

Restating some safety issues that have been brought up here...

1) 90 psi of air, spread out over many inches of area, can be a large force capable of launching things if it releases quickly.

2) Using the calibrated  footwear that 201MKT uses probably has some inherent safety issues as well for the less athletic DIYer...

Best regards,

-a-