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Hitachi UH083 What should I know about them?

Tones

Senior Member
Joined
Mar 15, 2009
Messages
3,083
Location
Ubique
Occupation
Ex land clearing contractor, part-time retired
What's wrong with the H link?
 

Akorn

Member
Joined
Nov 29, 2019
Messages
5
Location
USA
What's wrong with the H link?
Sheared in two! Most likely happened when pin came loose - not sure. Going to clean them up and look for part numbers or sizes. Hoping to find some used replacements.
IMG_2775.JPG
 

Tones

Senior Member
Joined
Mar 15, 2009
Messages
3,083
Location
Ubique
Occupation
Ex land clearing contractor, part-time retired
It could be the same as EX200 so have a good measure , length, hole and bush ID
 

helpless

New Member
Joined
Apr 28, 2020
Messages
2
Location
south alabama
i have a uho83lc best running most dependable machine ive ever had,i do not hire it out so it sits alot . so recently i fired it up walked it a while and got water in fuel problem .i been called a lot of things but never a mechanic. i drained the tank vacuumed it out, vacuumed the lines out fired it up every thing was fine thoroughly cleaned the machine soaped and pressure washed the crap out of the machine , i got years of funk out of center compartment , washed engine compartment. the next day i went to fire it up , i have had this machine for 7 or 8 years and always just touch the key , starts an you can barely hear it run, until now ,crank it and bogs down and goes dead, made a heck of a horrible noise and die after a few times idled it up and kept rolling it till it cranked , the noise stopped and the engine is running under a load, you idle it down and it dies . when id crank at normal idle and it would die there would be bad black smoke . i dont see any differential pressure sensors on this one and i cant find anyone that knows anything about these machines , regular diesel mechanics see the numbers on the machine and close their mind to every thing about the machine. help please
 

Welder Dave

Senior Member
Joined
Oct 11, 2014
Messages
12,536
Location
Canada
Almost sounds like aux. hydraulics are engaged or running against a relief valve. I'd check all controls and linkages. I don't think there's much electronics in those older machines. They were excellent machines though.
 

Tones

Senior Member
Joined
Mar 15, 2009
Messages
3,083
Location
Ubique
Occupation
Ex land clearing contractor, part-time retired
The hydraulic control bank which is behind the cab has 2 rods going to the pumps which accavte the swash plates. Check that have they full and free movement .
 
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