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main pin on U-frame BD2G

penetrater

Member
Joined
Feb 6, 2017
Messages
6
Location
oklahoma city
HI their, I have a BD2G that I just rebuilt one of the hydraulic lifting cylinders on , afterwards I noticed that the blade would shift from one side to the other while lifting or pushing down with the blade,, after a lot of looking I found out that the main pin and keeper were missing from the left side . both of the keeper bolts are broken off and no pin at all , and now I see only one bolt on the other sides keeper is still intact but at least the pin is holding.

I have looked and called every place I can find in the US without any luck finding a new or even a used one.
Mitsubishi has stopped sending replacement parts to the US ,or at least that is what I have been told.
I haven't been able to find even a part Number for the pin.

looking for any information I can get , Is their one used on another dozer that will fit ?
Thanks, Mark
 

Willie B

Senior Member
Joined
Jan 2, 2016
Messages
5,009
Location
Mount Tabor VT
Occupation
Electrician
I doubt these pins are special enough to be a big problem. Measure the one you have, get a piece of pin stock, cut, and drill. McMaster Carr, or any steel vendor can sell you cold rolled stock. On other makes of tractor these pins are not special steel.

Your problem may be excessive wear in the holes the pin passes through. In my Dresser, the C frame has replaceable bushings. The pin remains in the holes on the main frame of the tractor, still they wear. If this is the case, line boring, or the EXPANDER SYSTEM will be needed neither approach is cheap.

Willie
 

penetrater

Member
Joined
Feb 6, 2017
Messages
6
Location
oklahoma city
making one is what I was thinking I might have to do, some where I remember reading that the bd2g and a small ,, I think a Case model of around 40hp some of the parts were interchangeable .
thanks for all your advice and help.
 

DMiller

Senior Member
Joined
Feb 21, 2010
Messages
19,278
Location
Hermann, Missouri
Occupation
Cheap "old" Geezer
Hate to say it but the little monsters look to be a cloned Allis HD4 or 655 series.
 

Crummy

Senior Member
Joined
Jul 9, 2017
Messages
919
Location
Idaho
Weren't they at one point the same as a Cat D4? Something rattling in the darkness & cobwebs of my memory.
Kind of like my old "Cat" 307 was mostly (I think, memory again) Mitsubishi.
 

Willie B

Senior Member
Joined
Jan 2, 2016
Messages
5,009
Location
Mount Tabor VT
Occupation
Electrician
Cat D3 is approximately 7 tons. Looking at this tractor, I'd estimate 4 tons. There's a lot of size difference between a D4, and this. Nice little machine, but like my Mitsubishi Satoh compact diesel 4x4 tractor, it's a bit of an orphan. I have a lathe. I seek the knowledge of others to source, or build parts. You are fortunate this time. The part you need is simple to fabricate. I suggest making more than one. You, or someone else might need another later.
 

DMiller

Senior Member
Joined
Feb 21, 2010
Messages
19,278
Location
Hermann, Missouri
Occupation
Cheap "old" Geezer
th

1995_mitsubishi_bd2g_ii_crawler_dozer_5_lgw.jpg

Allis and mitsu
 

Willie B

Senior Member
Joined
Jan 2, 2016
Messages
5,009
Location
Mount Tabor VT
Occupation
Electrician
I'd avoid grease. It stands no chance down in the dirt. Grease would quickly turn into an abrasive paste.
 

penetrater

Member
Joined
Feb 6, 2017
Messages
6
Location
oklahoma city
well I found the pin !

I had about an hour to kill so I thought id try with my metal detector, and their it was about 6" deep in the house/shop pad I built. really lucky ,this place is 10 acres .

after I get it all cleaned up ill take a pic , the pin and keeper are one piece ,thought it was two,,, I'm going to have a machinist make another one , that way I and anyone can have access to one.,
on a side note ,that was all the luck I had,, lost $60 at the casino later that night,, it was worth a shot !
 
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