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Author Topic: Well that's going to leave a mark.  (Read 1132 times)

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Offline DR_Buck

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Well that's going to leave a mark.
« on: December 30, 2019, 07:13:56 PM »

It actually didn't leave a visible mark but I am currently hard down.    This evening as I was finishing up resawing some beams for a customer and my debarker  just fell off.   :o      I hadn't even used it today.  It was just hanging out there out of my way.  Then while dragging a board back it just dropped off.    It looks like the pin that the assembly pivots on is broke in half.   It was getting dark so tomorrow I'll take a closer look but it appears the pin is welded in place to the support arm that holds the debarker.    I've sent Marty Parsons an email and some photos and I will follow up with him in the morning to figure this out.    I'm just glad I was milling at home and not out on a portable job.  




 





 


 


  
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Offline KenMac

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Re: Well that's going to leave a mark.
« Reply #1 on: December 30, 2019, 07:19:27 PM »
That's an odd thing to happen!! Will warranty cover repairs? :-\
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Online Southside

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Re: Well that's going to leave a mark.
« Reply #2 on: December 30, 2019, 07:22:29 PM »
Is that something along the lines of a 1"+ steel rod that sheared off? 
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Online GAB

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Re: Well that's going to leave a mark.
« Reply #3 on: December 30, 2019, 07:45:57 PM »
Could you post pictures of the failure point on all pieces involved?
GAB
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Offline DR_Buck

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Re: Well that's going to leave a mark.
« Reply #4 on: December 30, 2019, 07:55:32 PM »
Could you post pictures of the failure point on all pieces involved?
GAB
This is a close up of the swing arm that holds the debarker.  The round gray area is the broken shaft/pin.


 




This is a close up of where the shaft/pin is supposed to be attached.   It broke off up inside the assembly and dropped out.





 
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Offline Oliver05262

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Re: Well that's going to leave a mark.
« Reply #5 on: December 30, 2019, 07:56:13 PM »
In picture number 2 I can see the beach marks. Probably a nick or a weld stress in the pin started the failure.
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Offline WDH

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Re: Well that's going to leave a mark.
« Reply #6 on: December 30, 2019, 09:05:00 PM »
I hate it when that happens. 
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Offline charles mann

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Re: Well that's going to leave a mark.
« Reply #7 on: December 30, 2019, 10:38:13 PM »
can you not just disconnect the cannon plug and continue mission? 
it looks as is it was a fresh brake, no signs of corrosion, indicating a crack prior to failure. as if it literally just broke for no apparent reason. 
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Offline Magicman

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Re: Well that's going to leave a mark.
« Reply #8 on: December 31, 2019, 08:17:35 AM »
I wonder if that arm wasn't swinging freely (binding) and causing the circuit breaker problem?  
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Offline DR_Buck

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Re: Well that's going to leave a mark.
« Reply #9 on: December 31, 2019, 09:52:31 AM »
I wonder if that arm wasn't swinging freely (binding) and causing the circuit breaker problem?  
It seamed to move OK.  I greased it and  I could push it out of the way when changing blades.
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Offline Stephen1

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Re: Well that's going to leave a mark.
« Reply #10 on: December 31, 2019, 10:12:17 AM »
I broke mine there in the 1st month I had the mill. My mistake, I was putting the head in it's travelling position and forgot to swing the debarker into position, i dropped it onto the support leg. I was sent the next revision  debarker arm. I installed it and still found the debarker does not swing quite enough to saw those big ugly logs, it was 1" inside the outside bearing so I could only saw 31" wide. I have now got rid of the "V" that controls the swing of the debarker, I can swing it all the way past and actually saw close to the 34". I can also swing the debarker to 180 degree to change the blades.
I used to swear at that debarker every time I wanted to change the blade or try to squeeze by a bump.
 I also now move the saw head to the far end to change blades and am able to swing the debarker all the way out. Just have to be carefull that I don't swing it 360 degree as the wiring starts to wind up. ::)
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Offline Rhodemont

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Re: Well that's going to leave a mark.
« Reply #11 on: December 31, 2019, 10:29:50 AM »
Good thing you were not using it when it fell off.  That would have really left a mark with the blades turning.
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Offline DR_Buck

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Re: Well that's going to leave a mark.
« Reply #12 on: December 31, 2019, 10:50:56 AM »
Good News.    I'm not the first to have this happen.   It's covered by warranty.  8)   And, the new, revised part is on order.    

I broke mine there in the 1st month I had the mill. My mistake, I was putting the head in it's travelling position and forgot to swing the debarker into position, i dropped it onto the support leg. I was sent the next revision  debarker arm. I installed it and still found the debarker does not swing quite enough to saw those big ugly logs, it was 1" inside the outside bearing so I could only saw 31" wide. I have now got rid of the "V" that controls the swing of the debarker, I can swing it all the way past and actually saw close to the 34". I can also swing the debarker to 180 degree to change the blades.
I used to swear at that debarker every time I wanted to change the blade or try to squeeze by a bump.
 I also now move the saw head to the far end to change blades and am able to swing the debarker all the way out. Just have to be carefull that I don't swing it 360 degree as the wiring starts to wind up. ::)
I know what you mean about the "V" but I've not had the need to saw at 32" yet.   I have been changing blades at the far end of the mill for some time and compared to the old non-wide version of the debarker it is some what of a PAIN to work around.    I've banged my head a few times.    ::)

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Online GAB

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Re: Well that's going to leave a mark.
« Reply #13 on: December 31, 2019, 11:53:10 AM »
Could you post pictures of the failure point on all pieces involved?
GAB
This is a close up of the swing arm that holds the debarker.  The round gray area is the broken shaft/pin.

(Image hidden from quote, click to view.)
 




This is a close up of where the shaft/pin is supposed to be attached.   It broke off up inside the assembly and dropped out.




(Image hidden from quote, click to view.)

Thanks for the pictures.
Can you tell if that was a machined pin or was it a cast or forged part.
The last part I saw that looked like that was a poor quality forging.
GAB
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