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1992 Hitachi EX120-2 questions

bobsimon

New Member
Joined
Jun 23, 2012
Messages
1
Location
Golden BC
Hi, I am new to this forum but it looks very helpfull. I have a 1994 Ex 120-2 that I bought gray market about 6 nyears ago. Other than some hydraulic leaks it has been trouble free. Last week the swing and track power went on it. It only swings very slow; when I double function it speeds up a little but still only about 20% of normal. Track power was the same, I had to use the stick to pull the machine out of the work site to where I could work on it.I pulled the spools and checked then, found some small scratches on them. These I polished with 100 grit paper, cleaned and reinstalled. This returned some track power but not the swing. I again pulled the spools and disassembled the swing spool. Everything was good, springs not broken, seat in good shape but still no swing power. reading this site I see a lot of discussion on electronic issues.
Can anybody help me with this? I also would like to find a set of manuals as none came with it. Thanks
 
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