Does anyone know the new track chain rail height or where abouts I can find wear tables on the internet for a hitachi EX100 or EX120? Also whats the limit on the slew brearing? (up / down etc)
EX120-5 Swing bearing play Max allowable 3.7mm
Great thanks,
I am showing two different chains for this machine one with a 2" bushing and the other w/ a 2 1/8" bushing. On the 2" bushing chain---new is 90mm and 100% wore is 83mm On the 2 1/8 bushing chain---new is 95.5mm and 100% wore is 89mm Your internal wear for both chains new is 686mm and 100% wore is 704mm ***stretch your chain tight and measure across 5 pins center to center to get your internal wear. Good luck, Quicktrax
Great thats what I needed.
Two quick ways to tell if your excavator chain is worn out. First check the front idler support blocks. If they are sticking out the ends of the track frames, you are running on scrap metal. Second, look at the links bending around the front idlers. If the outside links are spread out so you can just about stick your finger in there, you are still riding on scrap metal. Keep in mind that you can run that way for as long as you can stand putting the tracks back on.
John, Great pics and good advice!!!
hi, i have a john deer 790 elc 94' , is made in japan, after 40 minutes of work the hydraulic power goes down, i was looking for some john deer reference or hydraulics diagrams, and is very dificult to fiend it, some guy told me that my machine is a hitachi......whats next? i f anyone can help me with the hidraulic diagram or hydraulic sensors diagrams, that will be great, thanks guys
the hydraulic pump has 2 power lines,it is like a screw compresor, my email [email protected] , thanks for the help
Whats the pros / cons (apart from the obvious working in tight area's etc) for a zero tail swing digger. Can they lift the same weight / more expensive to fix?