Hi everyone, I’ve recently purchased a 2015 135us-3 excavator. I’ve got a couple of questions. Is it possible to fit a progressive switch for tilt bucket operating? It is button style at the moment and each press of the buttons make the tilt violently go left and right. It has a an air suspension seat (which is not working) are there any common faults, relay etc It doesn’t appear to have a floating blade? Is this correct and if so has anyone got the hydraulics modified to suit. Thanks in advance Ryan
For the tilt circuit an easier way is to fit flow restrictors which can be fitted on the bucket but not the digger. A good hydraulic shop should have them. As for the blade float, it's easier and cheaper to learn to work without it IMO.
Air seat: Does the motor turn on (do you hear a hum?) does it have power? Blade: these aren't dozers, you'll blow out your final drives pushing too much. Blade is only good for pushing dirt back into a ditch or leveling the machine for digging.
Thanks for that Tones, flow restrictors fitted much better
Thanks for your reply Zewnten, I found that the wiring had be severed to the motor behind the seat - rejoined it but still not working. Do you know if there is a fuse for it? I can’t find it in the fuse box.
Usually fused. Do you have an operator's or service manual to identify the fuses?
i found all different books you might need for this repair even the wiring diagram https://diyrepairmanuals.com/product-category/construction/hitachi/excavators-hitachi/zaxis135us-3/
Why not buy them straight from the dealer for that price and know you got the exact manual? Based on your post history you're promoting your website, are you listed as a vendor or just spammer trying to fly under the radar?
oh i guess i didn't look closely just saw there were a lot of different books, sorry thought I was being helpful