Dump Truck repair

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Subject Author Date
Dump Truck repair jp2express 07-10-2007
Posted by jp2express on July 10, 2007, 9:52 am
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I've been asked to repair the main hinge on an old dump truck where the
holes are nearly worn through.

Here are some pictures:
http://www.joeswelding.biz/VolvoEars/P1000658.JPG
http://www.joeswelding.biz/VolvoEars/P1000657.JPG
http://www.joeswelding.biz/VolvoEars/P1000656.JPG
http://www.joeswelding.biz/VolvoEars/P1000655.JPG
http://www.joeswelding.biz/VolvoEars/P1000659.JPG
http://www.joeswelding.biz/VolvoEars/P1000660.JPG

The round bar that the bed hinges on is 1-1/2 inch diameter.

The four "ears" are 3 inches tall, 4 inches long, and 7/16 inch thick.

I have some 1/2 inch plate that I can cut some new "ears" out of. It doesn't
really look like the extra 1/16th inch is going to hurt.

Either the original setup did not have any bushings/bearings, or they are
long gone!

Here's my plan:
1. Cut the ears out of my plate with 45 degree bevels along the weld sides.
2. Take them to a machine shop to have the 1-1/2 inch diameter holes milled.
3. Have machine shop include brass bushings or not?
4. With new ears in hand, cut out old ears using my torch. Grind smooth.
5. Grab my welding machine and glue the new ones in place with 1/8th inch
6011 SMAW.

I'll need to make more passes than the original single pass weld when it was
manufactured, but it should be plenty strong.

Comments?

Suggestions?

I want to make sure I have considered all options before I cut these ears
off.

Thanks!
Joe



Posted by jp2express on July 10, 2007, 10:15 am
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Damn!

Sorry about that, but the links are slightly off.

Please replace "/VolvoEars/" with "/photos/VolvoEars/" and they should come
up.

Lordy! How embarrassing!

Again, my apologies!
~Joe

http://www.joeswelding.biz/photos/VolvoEars/P1000658.JPG
http://www.joeswelding.biz/photos/VolvoEars/P1000657.JPG
http://www.joeswelding.biz/photos/VolvoEars/P1000656.JPG
http://www.joeswelding.biz/photos/VolvoEars/P1000655.JPG
http://www.joeswelding.biz/photos/VolvoEars/P1000659.JPG
http://www.joeswelding.biz/photos/VolvoEars/P1000660.JPG

> I've been asked to repair the main hinge on an old dump truck where the
> holes are nearly worn through.
>
> Here are some pictures:
> http://www.joeswelding.biz/VolvoEars/P1000658.JPG
> http://www.joeswelding.biz/VolvoEars/P1000657.JPG
> http://www.joeswelding.biz/VolvoEars/P1000656.JPG
> http://www.joeswelding.biz/VolvoEars/P1000655.JPG
> http://www.joeswelding.biz/VolvoEars/P1000659.JPG
> http://www.joeswelding.biz/VolvoEars/P1000660.JPG
>
> The round bar that the bed hinges on is 1-1/2 inch diameter.
>
> The four "ears" are 3 inches tall, 4 inches long, and 7/16 inch thick.
>
> I have some 1/2 inch plate that I can cut some new "ears" out of. It
> doesn't really look like the extra 1/16th inch is going to hurt.
>
> Either the original setup did not have any bushings/bearings, or they are
> long gone!
>
> Here's my plan:
> 1. Cut the ears out of my plate with 45 degree bevels along the weld
> sides.
> 2. Take them to a machine shop to have the 1-1/2 inch diameter holes
> milled.
> 3. Have machine shop include brass bushings or not?
> 4. With new ears in hand, cut out old ears using my torch. Grind smooth.
> 5. Grab my welding machine and glue the new ones in place with 1/8th inch
> 6011 SMAW.
>
> I'll need to make more passes than the original single pass weld when it
> was manufactured, but it should be plenty strong.
>
> Comments?
>
> Suggestions?
>
> I want to make sure I have considered all options before I cut these ears
> off.
>
> Thanks!
> Joe
>



Posted by Ignoramus22010 on July 10, 2007, 11:39 am
Please log in for more thread options
> I've been asked to repair the main hinge on an old dump truck where the
> holes are nearly worn through.
>
> Here are some pictures:
> http://www.joeswelding.biz/VolvoEars/P1000658.JPG

These pages do not work for me.

i
The page you tried to access does not exist on this server. This page
may not exist due to the following reasons:

1. You are the owner of this web site and you have not uploaded (or
incorrectly uploaded) your web site. For information on uploading your
web site using FTP client software or web design software, click here
for FTP Upload Information.

2. The URL that you have entered in your browser is
incorrect. Please re-enter the URL and try again.

3. The Link that you clicked on incorrectly points to this
page. Please contact the owner of this web site to inform them of this
situation.
> http://www.joeswelding.biz/VolvoEars/P1000657.JPG
> http://www.joeswelding.biz/VolvoEars/P1000656.JPG
> http://www.joeswelding.biz/VolvoEars/P1000655.JPG
> http://www.joeswelding.biz/VolvoEars/P1000659.JPG
> http://www.joeswelding.biz/VolvoEars/P1000660.JPG
>
> The round bar that the bed hinges on is 1-1/2 inch diameter.
>
> The four "ears" are 3 inches tall, 4 inches long, and 7/16 inch thick.
>
> I have some 1/2 inch plate that I can cut some new "ears" out of. It doesn't
> really look like the extra 1/16th inch is going to hurt.
>
> Either the original setup did not have any bushings/bearings, or they are
> long gone!
>
> Here's my plan:
> 1. Cut the ears out of my plate with 45 degree bevels along the weld sides.
> 2. Take them to a machine shop to have the 1-1/2 inch diameter holes milled.
> 3. Have machine shop include brass bushings or not?
> 4. With new ears in hand, cut out old ears using my torch. Grind smooth.
> 5. Grab my welding machine and glue the new ones in place with 1/8th inch
> 6011 SMAW.
>
> I'll need to make more passes than the original single pass weld when it was
> manufactured, but it should be plenty strong.
>
> Comments?
>
> Suggestions?
>
> I want to make sure I have considered all options before I cut these ears
> off.
>
> Thanks!
> Joe
>
>

Posted by jp2express on July 10, 2007, 11:52 am
Please log in for more thread options
Yeah, I posted a reply about 15 minutes later (had to give the message board
time for the new post to arrive before I was able to test my links).

Here are the corrected links as I "reposted" shortly after:

--- "Joe" reposted with this:
Damn!

Sorry about that, but the links are slightly off.

Please replace "/VolvoEars/" with "/photos/VolvoEars/" and they should come
up.

Lordy! How embarrassing!

Again, my apologies!
~Joe

http://www.joeswelding.biz/photos/VolvoEars/P1000658.JPG
http://www.joeswelding.biz/photos/VolvoEars/P1000657.JPG
http://www.joeswelding.biz/photos/VolvoEars/P1000656.JPG
http://www.joeswelding.biz/photos/VolvoEars/P1000655.JPG
http://www.joeswelding.biz/photos/VolvoEars/P1000659.JPG
http://www.joeswelding.biz/photos/VolvoEars/P1000660.JPG



"Ignoramus22010" wrote:
> These pages do not work for me.
>
> i
> The page you tried to access does not exist on this server. This page
> may not exist due to the following reasons:
>
> 1. You are the owner of this web site and you have not uploaded (or
> incorrectly uploaded) your web site. For information on uploading your
> web site using FTP client software or web design software, click here
> for FTP Upload Information.
>
> 2. The URL that you have entered in your browser is
> incorrect. Please re-enter the URL and try again.
>
> 3. The Link that you clicked on incorrectly points to this
> page. Please contact the owner of this web site to inform them of this
> situation.
>> http://www.joeswelding.biz/VolvoEars/P1000657.JPG
>> http://www.joeswelding.biz/VolvoEars/P1000656.JPG
>> http://www.joeswelding.biz/VolvoEars/P1000655.JPG
>> http://www.joeswelding.biz/VolvoEars/P1000659.JPG
>> http://www.joeswelding.biz/VolvoEars/P1000660.JPG
>>
>> The round bar that the bed hinges on is 1-1/2 inch diameter.
>>
>> The four "ears" are 3 inches tall, 4 inches long, and 7/16 inch thick.
>>
>> I have some 1/2 inch plate that I can cut some new "ears" out of. It
>> doesn't
>> really look like the extra 1/16th inch is going to hurt.
>>
>> Either the original setup did not have any bushings/bearings, or they are
>> long gone!
>>
>> Here's my plan:
>> 1. Cut the ears out of my plate with 45 degree bevels along the weld
>> sides.
>> 2. Take them to a machine shop to have the 1-1/2 inch diameter holes
>> milled.
>> 3. Have machine shop include brass bushings or not?
>> 4. With new ears in hand, cut out old ears using my torch. Grind smooth.
>> 5. Grab my welding machine and glue the new ones in place with 1/8th inch
>> 6011 SMAW.
>>
>> I'll need to make more passes than the original single pass weld when it
>> was
>> manufactured, but it should be plenty strong.
>>
>> Comments?
>>
>> Suggestions?
>>
>> I want to make sure I have considered all options before I cut these ears
>> off.
>>
>> Thanks!
>> Joe
>>
>>



Posted by utahparx on July 10, 2007, 12:35 pm
Please log in for more thread options
Joe- not so much advice, but can you answer a few questions for my own
reference?

1. Is the ear surface is way too far gone to repair with hardfacing?

2. how true is the subframe the ears mount to? if it's twisted in any
way it seems like it could be a serious pain to get the pin back in
the right place.

3. how tight is the tolerance between the pin and the bore of the ear?

Is torching out 4 new ears that have to be milled to a common center
going to be difficult?
(i know it would be for me, but I'm not the best guy with a torch
either)

thanks for the info, and good luck on the repair.




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