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galinhdz(at)gmail.com
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 Posted: Sun Jul 08, 2012 7:58 pm Post subject: Nose Wheel Torque |
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Has anybody had problems while torquing the nose gear friction bolt? I sheared the pin holding the bolt and had to get a new bolt machined. But it doesn't seem logical that the pin holding the bolt doesn't go all the way through to the other side. Does anybody know if there is a reason why the pin doesn't go all the way through the nose gear or can I drill the nose gear so the pin holds in two places not just one? Also, is that a special pin or would any rolled steel pin work?
Galin
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mikepapa(at)bigpond.com
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| Posted: Mon Jul 09, 2012 3:21 am Post subject: Nose Wheel Torque |
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Galin,
The nose gear bolt on my KIS TR1 which has 1200 hrs on it with this part still intact has a roll pin which extends completely through from one side to the other. In my opinion this would be best engineering practice, and can’t see any reason why you would do otherwise.
Regards,
Mike.
From: owner-kis-list-server(at)matronics.com [mailto:owner-kis-list-server(at)matronics.com] On Behalf Of Galin Hernandez
Sent: Monday, 9 July 2012 1:57 PM
To: kis-list(at)matronics.com
Subject: Nose Wheel Torque
Has anybody had problems while torquing the nose gear friction bolt? I sheared the pin holding the bolt and had to get a new bolt machined. But it doesn't seem logical that the pin holding the bolt doesn't go all the way through to the other side. Does anybody know if there is a reason why the pin doesn't go all the way through the nose gear or can I drill the nose gear so the pin holds in two places not just one? Also, is that a special pin or would any rolled steel pin work?
Galin
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galinhdz(at)gmail.com
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| Posted: Mon Jul 09, 2012 4:38 am Post subject: Nose Wheel Torque |
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Thanks Mike. I am going to make it so the pin extends completely from one side to the other. It just seems logical to me. Also, how much torque do you put on the bolt? I read to tighten it until it takes between 20-30 ft/lb to move the nose gear but how do you measure this without special equipment? I have a torque wrench so I can put a specific amount on the bolt.
Galin
On Mon, Jul 9, 2012 at 6:20 AM, Mike and Michele Patten <mikepapa(at)bigpond.com (mikepapa(at)bigpond.com)> wrote:
[quote]
Galin,
The nose gear bolt on my KIS TR1 which has 1200 hrs on it with this part still intact has a roll pin which extends completely through from one side to the other. In my opinion this would be best engineering practice, and can’t see any reason why you would do otherwise.
Regards,
Mike.
From: owner-kis-list-server(at)matronics.com (owner-kis-list-server(at)matronics.com) [mailto:owner-kis-list-server(at)matronics.com (owner-kis-list-server(at)matronics.com)] On Behalf Of Galin Hernandez
Sent: Monday, 9 July 2012 1:57 PM
To: kis-list(at)matronics.com (kis-list(at)matronics.com)
Subject: Nose Wheel Torque
Has anybody had problems while torquing the nose gear friction bolt? I sheared the pin holding the bolt and had to get a new bolt machined. But it doesn't seem logical that the pin holding the bolt doesn't go all the way through to the other side. Does anybody know if there is a reason why the pin doesn't go all the way through the nose gear or can I drill the nose gear so the pin holds in two places not just one? Also, is that a special pin or would any rolled steel pin work?
Galin
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mikepapa(at)bigpond.com
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| Posted: Tue Jul 10, 2012 3:46 am Post subject: Nose Wheel Torque |
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Galin,
I didn’t realise the bolt on your aircraft was threaded into the nose leg. On my aircraft the shaft which protrudes out of the leg is parallel on the top section where it goes into the leg and is held into the leg by the roll pin alone. The threaded section on the bottom is only about 1inch long and supports the belville washers and castellated nut. I assumed this was the upgraded gear, which replaced the original. The tension of the retaining nut is not definitive, but a function of a load required to move the wheel at a certain radius. Can’t remember the load, but something like 10lbs at the rear of the nose fork. Best to err on the high side otherwise it will shimmy, which is not as obvious to the pilot as someone on the ground observing. Hope this all makes sense.
Regards,
Mike.
From: owner-kis-list-server(at)matronics.com [mailto:owner-kis-list-server(at)matronics.com] On Behalf Of Galin Hernandez
Sent: Monday, 9 July 2012 10:37 PM
To: kis-list(at)matronics.com
Subject: Re: Nose Wheel Torque
Thanks Mike. I am going to make it so the pin extends completely from one side to the other. It just seems logical to me. Also, how much torque do you put on the bolt? I read to tighten it until it takes between 20-30 ft/lb to move the nose gear but how do you measure this without special equipment? I have a torque wrench so I can put a specific amount on the bolt.
Galin
On Mon, Jul 9, 2012 at 6:20 AM, Mike and Michele Patten <mikepapa(at)bigpond.com (mikepapa(at)bigpond.com)> wrote:
Galin,
The nose gear bolt on my KIS TR1 which has 1200 hrs on it with this part still intact has a roll pin which extends completely through from one side to the other. In my opinion this would be best engineering practice, and can’t see any reason why you would do otherwise.
Regards,
Mike.
From: owner-kis-list-server(at)matronics.com (owner-kis-list-server(at)matronics.com) [mailto:owner-kis-list-server(at)matronics.com (owner-kis-list-server(at)matronics.com)] On Behalf Of Galin Hernandez
Sent: Monday, 9 July 2012 1:57 PM
To: kis-list(at)matronics.com (kis-list(at)matronics.com)
Subject: Nose Wheel Torque
Has anybody had problems while torquing the nose gear friction bolt? I sheared the pin holding the bolt and had to get a new bolt machined. But it doesn't seem logical that the pin holding the bolt doesn't go all the way through to the other side. Does anybody know if there is a reason why the pin doesn't go all the way through the nose gear or can I drill the nose gear so the pin holds in two places not just one? Also, is that a special pin or would any rolled steel pin work?
Galin
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[quote][b]
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galinhdz(at)gmail.com
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| Posted: Tue Jul 10, 2012 4:27 am Post subject: Nose Wheel Torque |
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The bolt is threaded but there is no thread in the nose leg so it just slides in and out. The roll pin is what holds it in the nose leg. The only thing I can think is that instead of fabricating bolts for the nose gear they just purchased a standard 3/4" threaded stud and drilled the appropriate holes.
How do you measure 10lbs at the rear of the nose fork?
Galin
On Tue, Jul 10, 2012 at 6:45 AM, Mike and Michele Patten <mikepapa(at)bigpond.com (mikepapa(at)bigpond.com)> wrote:
[quote]
Galin,
I didn’t realise the bolt on your aircraft was threaded into the nose leg. On my aircraft the shaft which protrudes out of the leg is parallel on the top section where it goes into the leg and is held into the leg by the roll pin alone. The threaded section on the bottom is only about 1inch long and supports the belville washers and castellated nut. I assumed this was the upgraded gear, which replaced the original. The tension of the retaining nut is not definitive, but a function of a load required to move the wheel at a certain radius. Can’t remember the load, but something like 10lbs at the rear of the nose fork. Best to err on the high side otherwise it will shimmy, which is not as obvious to the pilot as someone on the ground observing. Hope this all makes sense.
Regards,
Mike.
From: owner-kis-list-server(at)matronics.com (owner-kis-list-server(at)matronics.com) [mailto:owner-kis-list-server(at)matronics.com (owner-kis-list-server(at)matronics.com)] On Behalf Of Galin Hernandez
Sent: Monday, 9 July 2012 10:37 PM
To: kis-list(at)matronics.com (kis-list(at)matronics.com)
Subject: Re: Nose Wheel Torque
Thanks Mike. I am going to make it so the pin extends completely from one side to the other. It just seems logical to me. Also, how much torque do you put on the bolt? I read to tighten it until it takes between 20-30 ft/lb to move the nose gear but how do you measure this without special equipment? I have a torque wrench so I can put a specific amount on the bolt.
Galin
On Mon, Jul 9, 2012 at 6:20 AM, Mike and Michele Patten <mikepapa(at)bigpond.com (mikepapa(at)bigpond.com)> wrote:
Galin,
The nose gear bolt on my KIS TR1 which has 1200 hrs on it with this part still intact has a roll pin which extends completely through from one side to the other. In my opinion this would be best engineering practice, and can’t see any reason why you would do otherwise.
Regards,
Mike.
From: owner-kis-list-server(at)matronics.com (owner-kis-list-server(at)matronics.com) [mailto:owner-kis-list-server(at)matronics.com (owner-kis-list-server(at)matronics.com)] On Behalf Of Galin Hernandez
Sent: Monday, 9 July 2012 1:57 PM
To: kis-list(at)matronics.com (kis-list(at)matronics.com)
Subject: Nose Wheel Torque
Has anybody had problems while torquing the nose gear friction bolt? I sheared the pin holding the bolt and had to get a new bolt machined. But it doesn't seem logical that the pin holding the bolt doesn't go all the way through to the other side. Does anybody know if there is a reason why the pin doesn't go all the way through the nose gear or can I drill the nose gear so the pin holds in two places not just one? Also, is that a special pin or would any rolled steel pin work?
Galin
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ftyoder(at)yoderbuilt.com
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| Posted: Tue Jul 10, 2012 6:55 am Post subject: Nose Wheel Torque |
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Galin,
I use a simple fish weight spring scale to set the torque on my TR-1. I hook it on the yoke at the axel point and tighten the nut until It takes 30# of pull on the scale to move the yoke. The pounds required should be in your manual.
Tim
[quote] ---
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galinhdz(at)gmail.com
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| Posted: Tue Jul 10, 2012 10:02 am Post subject: Nose Wheel Torque |
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Tim,
What do you mean you hook it on the yoke at the "axle point"?
Galin
On Tuesday, July 10, 2012, F. Tim Yoder wrote:
[quote] Galin,
I use a simple fish weight spring scale to set the torque on my TR-1. I hook it on the yoke at the axel point and tighten the nut until It takes 30# of pull on the scale to move the yoke. The pounds required should be in your manual.
Tim
[quote] ---
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galinhdz(at)gmail.com
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| Posted: Tue Jul 10, 2012 10:04 am Post subject: Nose Wheel Torque |
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Tim,
Now that I re-read your e-mail it makes complete sense. "DUH"
I will check to see how much torque is needed to move the nose gear fork.
Galin
On Tuesday, July 10, 2012, Galin Hernandez wrote:
[quote]Tim,
What do you mean you hook it on the yoke at the "axle point"?
Galin
On Tuesday, July 10, 2012, F. Tim Yoder wrote:
[quote] Galin,
I use a simple fish weight spring scale to set the torque on my TR-1. I hook it on the yoke at the axel point and tighten the nut until It takes 30# of pull on the scale to move the yoke. The pounds required should be in your manual.
Tim
[quote] ---
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ftyoder(at)yoderbuilt.com
Guest
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| Posted: Tue Jul 10, 2012 10:48 am Post subject: Nose Wheel Torque |
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Galin,
It needs to be pretty tight. you may need to use both hands to move the yoke. The wheel needs to be off the ground, of course.
I have seen a Cirrus nose wheel shimmy so bad it blew up the wheel pant.
Tim
al Message -----
[quote] From: Galin Hernandez (galinhdz(at)gmail.com)
To: kis-list(at)matronics.com (kis-list(at)matronics.com)
Sent: Tuesday, July 10, 2012 11:03 AM
Subject: Re: Nose Wheel Torque
Tim,
Now that I re-read your e-mail it makes complete sense. "DUH"
I will check to see how much torque is needed to move the nose gear fork.
Galin
On Tuesday, July 10, 2012, Galin Hernandez wrote:
[quote] Tim,
What do you mean you hook it on the yoke at the "axle point"?
Galin
On Tuesday, July 10, 2012, F. Tim Yoder wrote:
[quote] Galin,
I use a simple fish weight spring scale to set the torque on my TR-1. I hook it on the yoke at the axel point and tighten the nut until It takes 30# of pull on the scale to move the yoke. The pounds required should be in your manual.
Tim
[quote] ---
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bakerocb
Joined: 15 Jan 2006
Posts: 727
Location: FAIRFAX VA
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| Posted: Wed Jul 11, 2012 3:17 am Post subject: Nose Wheel Torque |
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7/11/2012
Hello Galin, Why not drill all the way through like you plan to and use an AN 3 bolt with a stop nut on it instead of the roll pin to hold your large bolt in place?
I have had very good luck using nylon washers in my KIS TR-1 nose gear stack up to provide friction – no shimmy problems. Nylon washers are available from a good hardware store or you can make them yourself using nylon sheet and hole saws of the correct diameter.
OC
=======================================
From: owner-kis-list-server(at)matronics.com (owner-kis-list-server(at)matronics.com)
[mailto:owner-kis-list-server(at)matronics.com] On Behalf Of Galin Hernandez
Sent: Monday, 9 July 2012 10:37 PM
Subject: Re: KIS-List: Nose Wheel Torque
Thanks Mike. I am going to make it so the pin extends completely from one
side to the other. It just seems logical to me. Also, how much torque do
you put on the bolt? I read to tighten it until it takes between 20-30 ft/lb
to move the nose gear but how do you measure this without special equipment?
I have a torque wrench so I can put a specific amount on the bolt.
Galin
[quote][b]
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http://www.matronics.com/Navigator?KIS-List |
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kentpyle(at)iland.net
Guest
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| Posted: Wed Jul 11, 2012 3:26 pm Post subject: Nose Wheel Torque |
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I too suffered nose wheel pant damage from shimmy. My mechanic recommended balancing the nose wheel to help solve this problem. Kent
From: F. Tim Yoder (ftyoder(at)yoderbuilt.com)
Sent: Tuesday, July 10, 2012 1:48 PM
To: kis-list(at)matronics.com (kis-list(at)matronics.com)
Subject: Re: Nose Wheel Torque
Galin,
It needs to be pretty tight. you may need to use both hands to move the yoke. The wheel needs to be off the ground, of course.
I have seen a Cirrus nose wheel shimmy so bad it blew up the wheel pant.
Tim
al Message -----
[quote] From: Galin Hernandez (galinhdz(at)gmail.com)
To: kis-list(at)matronics.com (kis-list(at)matronics.com)
Sent: Tuesday, July 10, 2012 11:03 AM
Subject: Re: Nose Wheel Torque
Tim,
Now that I re-read your e-mail it makes complete sense. "DUH"
I will check to see how much torque is needed to move the nose gear fork.
Galin
On Tuesday, July 10, 2012, Galin Hernandez wrote:
[quote] Tim,
What do you mean you hook it on the yoke at the "axle point"?
Galin
On Tuesday, July 10, 2012, F. Tim Yoder wrote:
[quote] Galin,
I use a simple fish weight spring scale to set the torque on my TR-1. I hook it on the yoke at the axel point and tighten the nut until It takes 30# of pull on the scale to move the yoke. The pounds required should be in your manual.
Tim
[quote] ---
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http://www.matronics.com/Navigator?KIS-List |
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