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Bucket Cylinder removal

rumblecloud

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May 6, 2012
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188
Location
Michigan
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Living the dream...:]
Update and a question...

I did end up at AIS and they were able to get the bolt out. They had to heat the bolt head and use the big two-handed impact gun. There was quite a lot of thread locker on it.

Piston Bolt cropped.png

I do have a question on replacing a couple of the rings on the piston. The kit I bought from Reliable Aftermarket Parts did not include the two black seals (I guess that's what they are) that are on either side of the yellow seal, (which came in the kit) in the center. The question is are those two black "seals" supposed to be replaced? They got a little scuffed in the removal process.

Thanks
R

Seal question.png
 

Swetz

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Happy times! Glad you got it cracked loose!

The black pieces you pointed out are often called bearings or guides. They are used to keep the piston square in the bore. They are oftentimes not available separate from the piston itself on NH machines. They do not seal so if they got a little roughed up, no big deal. Make sure there isn't any metal imbedded in them, they are smooth, and clean, and reuse them.

If you are going back to have the piston bolt reinstalled, carefully wrap the piston to protect it. It is not ok if the seal in the middle gets banged up at all.
 

rumblecloud

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May 6, 2012
Messages
188
Location
Michigan
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Living the dream...:]
Happy times! Glad you got it cracked loose!

The black pieces you pointed out are often called bearings or guides. They are used to keep the piston square in the bore. They are oftentimes not available separate from the piston itself on NH machines. They do not seal so if they got a little roughed up, no big deal. Make sure there isn't any metal imbedded in them, they are smooth, and clean, and reuse them.

If you are going back to have the piston bolt reinstalled, carefully wrap the piston to protect it. It is not ok if the seal in the middle gets banged up at all.


Dang...unbelievable.
You sir are a God send.
I just finished posting a ticket with Reliable and I return here to find the answer to all my questions.

Bless you.
R
 

rumblecloud

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Messages
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Living the dream...:]
Success! Cylinder is back on and not leaking - so far :D
One last question:
What is the secret for installing these:

C-Clips.jpg

What a total PIA they are. I tried pretty much all the tricks I have and ran out of daylight.

Thank you all again.
R
 

Swetz

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I have 2 different pairs. This one is the best, in my opinion. The lower right hand pic shows the little dimple in the face. The ends of the lock ring go in the dimple.

Regardless, you are correct, these locks are a pain in the....
238-2385384_donkey-kick-png-donkey-kick-clip-art-transparent.png


s-l1600.jpg

 

rumblecloud

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Messages
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Michigan
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Living the dream...:]
It was quite a learning experience. And I was able to do it without any help -- except for AIS.
But now that I know how they did it -- using heat -- I may be able to handle the next one on my own.

Cylinder rods are heavy :p

I'm currently shopping for snap ring pliers (thanks for the tip) and different style snap rings...hah!
 

joe--h

Senior Member
Joined
Jul 22, 2009
Messages
1,259
Location
Utah
But now that I know how they did it -- using heat

See post #2 back when you started.

Heat and long bars are you friend.

Congratulations, it wasn't rocket science after all, was it?

Joe H
 

rumblecloud

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Living the dream...:]
@Joe H
I do remember.

Their (AIS) equipment might be a little more sophisticated and they probably brought more heat than I can, but I am persistent.

I do have to pay my respects to AIS though. They quoted me a price of $180 for an hours worth of their time. But when I went to pick it up, they waved me out with no charge. I did however go back to the tech guy who did the work and gave him $20.
 

NH575E

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Dec 30, 2015
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North, FL
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Retired Machinist
Success! Cylinder is back on and not leaking - so far :D
One last question:
What is the secret for installing these:

View attachment 291311

What a total PIA they are. I tried pretty much all the tricks I have and ran out of daylight.

Thank you all again.
R

I have the same spreader pliers that Swetz has for these type c-clips but I have sometimes started one end and taped it into the groove by following around it with a hammer or punch.

Where are these used on your machine? My bucket cylinder pins have flat covers that prevent a pin from falling out.
 

NH575E

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North, FL
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My bucket pins are made different. They have a flat groove about a quarter inch wide a metal band fits in. Under the band is a hole a loose fitting pin is in and the band prevents the pin from falling out.bucket-pin.jpg
 
Last edited:

rumblecloud

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Location
Michigan
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Living the dream...:]
Hmmm...sounds like a tractor-style clevis pin.

Better design and much easier to remove and install.
 
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