Shop Floor Talk  

Go Back   Shop Floor Talk > Welding and Metalworking Forums > Fabrication

SFT Search:   
Reply
 
Thread Tools Display Modes
  #1  
Old 05-05-2007, 03:43 PM
jksweld's Avatar
jksweld jksweld is offline
Senior Member
 
Join Date: Dec 2005
Location: Clay WV
Posts: 654
Default H-Member Repair on Hitachi EX120 excavator

Got a call Thursday from the guy I've been doing some work for and the pin that holds the H-member and the bucket together broke. It was a greaseable pin and had broke right through the grease hole, which is normal. So I went out this morning between rain storms and took it off and brought it back to the house, so I could work on it in the building out of the rain.

I did away with the greaseable pin and drilled and tapped the arms for grease fittings, tomarrow I'am gone to weld some pipe stubs over them for protection. Also there were no bushings in the ends just in the middle so I had some bushings and a new pin made, put the bushings in the freezer for 28 hours. Cleaned up the bores after drilling the new grease holes and took the bushings out of the freezer and slid them in, one side slid right in and the other side took a few pecks with a hammer, checked the pin and it is a great fit. I have to go out in the morning and put it back on and do some more welding on the bucket and thumb, its better now then what it was.

pic1- H member
pic2 - no bushings on the ends
pic3 - new grease fittings
pic4 - new bushings in the ends
pic5 - done with pin in the new bushings

thanks James
Attached Thumbnails
Click image for larger version

Name:	H member.jpg
Views:	622
Size:	55.8 KB
ID:	22969   Click image for larger version

Name:	H member 2.jpg
Views:	582
Size:	49.3 KB
ID:	22970   Click image for larger version

Name:	H member 3.jpg
Views:	577
Size:	74.8 KB
ID:	22971   Click image for larger version

Name:	H member 4.jpg
Views:	566
Size:	34.1 KB
ID:	22972   Click image for larger version

Name:	H member 5.jpg
Views:	596
Size:	64.5 KB
ID:	22973  

__________________
When the weldin' hood drops the Bulls**t stops

SAGO MINE TRAGEDY
WE WILL NEVER FORGET
1-2-06
Reply With Quote
  #2  
Old 05-05-2007, 09:02 PM
Jeff's Avatar
Jeff Jeff is offline
Big Iron
 
Join Date: Feb 2005
Location: N.E.SD
Posts: 1,891
Default

Nice work James.
__________________
Jeff
Reply With Quote
  #3  
Old 05-05-2007, 09:23 PM
LW Hiway's Avatar
LW Hiway LW Hiway is offline
Lord of the Minions
 
Join Date: Jun 2005
Location: Fuck Lake Charles
Posts: 21,434
Default

James, nice work bud. Curious tho, did you ever make, find, buy a line bore set? Or is that still in the works?

Looking at the pics, #3 in particular, for the zerks safety from getting or taking a hit and breaking off, would it be possible to weld a, say, 1/2" tall, 3/4" id heavy wall piece of pipe to surround the zerk? It would seem that this area of the knuckle will take hits, swipes and abuse from the work performed on a daily basis.

Nice to be able to do some of these things inside ain't it?
LW
Attached Thumbnails
Click image for larger version

Name:	H_member_3.jpg
Views:	428
Size:	75.4 KB
ID:	22983  
__________________
God, if you would grant me one request through Prayer, please help me be the Man my Dog thinks I am. Please.

Quoting "The Hunt". "A man will walk into hell with both eyes and arms wide open. His dog will know better."

I never thought I'd live long enough to become a grumpy old bastard. Here I am, killing it!
Reply With Quote
  #4  
Old 05-05-2007, 09:33 PM
84ZMike's Avatar
84ZMike 84ZMike is offline
Elite Member
 
Join Date: Jan 2007
Location: Lillington, NC
Posts: 1,014
Default

Quote:
Originally Posted by lwhiway
for the zerks safety from getting or taking a hit and breaking off, would it be possible to weld a, say, 1/2" tall, 3/4" id heavy wall piece of pipe to surround the zerk? It would seem that this area of the knuckle will take hits, swipes and abuse from the work performed on a daily basis.
Quote:
Originally Posted by jksweld
I did away with the greaseable pin and drilled and tapped the arms for grease fittings, tomarrow I'am gone to weld some pipe stubs over them for protection.
Nice work there....
Mike
__________________
"We will fight them there or we will fight them here."
Marine Lance Cpl. Matthew Medlicott(KIA Aug.25,2007)Semper Fi Brother


A veteran is someone who, at one point in his life wrote a blank check made payable to The United States of America for an amount of "up to and including my life."
That is Honor, and there are way too many people in this country who no longer understand it.
Reply With Quote
  #5  
Old 05-05-2007, 09:51 PM
LW Hiway's Avatar
LW Hiway LW Hiway is offline
Lord of the Minions
 
Join Date: Jun 2005
Location: Fuck Lake Charles
Posts: 21,434
Default

Note to self. Must remember to wear glasses at all times when reading posts on SFT. And be gracious to those that so "quietly" point that out. Thanks Mike. lol
__________________
God, if you would grant me one request through Prayer, please help me be the Man my Dog thinks I am. Please.

Quoting "The Hunt". "A man will walk into hell with both eyes and arms wide open. His dog will know better."

I never thought I'd live long enough to become a grumpy old bastard. Here I am, killing it!
Reply With Quote
  #6  
Old 05-05-2007, 10:09 PM
jksweld's Avatar
jksweld jksweld is offline
Senior Member
 
Join Date: Dec 2005
Location: Clay WV
Posts: 654
Default

Thanks Guys

LW the line borer is in the slow works, but wasn't needed for this job I just added some extra bushings for better support. I've been scroungin stuff up like a gearmotor and a baby dodge speed reducer and a motor speed control, just seen this stuff layin around so I figured what the heck might be able to use it for the bore rig


Thanks James
__________________
When the weldin' hood drops the Bulls**t stops

SAGO MINE TRAGEDY
WE WILL NEVER FORGET
1-2-06
Reply With Quote
  #7  
Old 05-06-2007, 02:07 PM
houlibar's Avatar
houlibar houlibar is offline
Lord of the Reins
 
Join Date: Jul 2005
Location: SoCal, most advanced third world country
Posts: 1,893
Default

Good repair, James! Always interesting to see your work.
__________________
Scott
Reply With Quote
  #8  
Old 05-06-2007, 02:57 PM
cutter's Avatar
cutter cutter is offline

12-29-1943 to 1-17-2020
Curmudgeon emeritus
 
Join Date: Jun 2004
Location: Lubbock,Texas
Posts: 33,110
Default

You know what, James? I have figured out why you don't get more replies to your repair threads:
You just make it look too easy.
Heck, you need to fiddle and faddle a little bit, look indecisive, ask for opinions (you can always ignore them anyway) and you know - struggle a little bit.
But shoot, you just lay it out there & say "so I fixed it this way" - no angst or blood on the ground so they all just read it & nod "umm huhmm", click right on through.

Good job as always.
__________________
cutter
Housekeeping Staff: the Gatekeeper
Director of Policy, Syntax and Grammar (by appointment)

"Dr. Chandran, will I dream?"

Just Keep Walking

"I am not a body, I am free.
For I am still as God created me."
Reply With Quote
  #9  
Old 05-06-2007, 06:52 PM
jksweld's Avatar
jksweld jksweld is offline
Senior Member
 
Join Date: Dec 2005
Location: Clay WV
Posts: 654
Default

Thanks Cutter and Scott

There was some blood shead today, I was cleanin out the building after I got back today and mowed the grass. I put a broken light bulb in a trash bag and when I put it in the trash can I pushed down on the bag and the light bulb came up and got me, needless to say I got a little slice out of the deal

Went out this morning and put the H member back on and did some welding on the bucket, so they are ready to dig out another apartment foundation

Heres some pics of the rings I put on to protect the grease fitting

James
Attached Thumbnails
Click image for larger version

Name:	H member6.jpg
Views:	383
Size:	55.5 KB
ID:	23004   Click image for larger version

Name:	H member 7.jpg
Views:	377
Size:	70.9 KB
ID:	23005  
__________________
When the weldin' hood drops the Bulls**t stops

SAGO MINE TRAGEDY
WE WILL NEVER FORGET
1-2-06
Reply With Quote
  #10  
Old 05-06-2007, 07:51 PM
midmosandblasting's Avatar
midmosandblasting midmosandblasting is offline
Blast this!
 
Join Date: Oct 2005
Location: Calhoun ,Mo
Posts: 8,874
Default

JK I forget is this your full time gig or after hours work ?
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Web Search:

All times are GMT -5. The time now is 11:14 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2022, vBulletin Solutions Inc.