Hello Folks I'm new to this forum. I'm John.
I'm looking for any help I can get regarding my Komatsu PC28UU-2E.
I can't find any manuals out there at all. Nothing.
My problem is the arm started moving slow and now the boom is slow going up.
Every other function seems normal.
I did read about the potentiometers on the arm and boom. But, I cannot find any definite information on how to troubleshoot these potentiometers. Does anyone have a service manual with more info so I can start
trying to figure out if they are functional or not. I'm going to start there and follow the wires back to their termination point at the other end.
I do not have a operators manual either. I'm wondering/asking if the switch by the ignition key can reset the safety functions. There is a flashing light on the dash with what I believe to be a Japanese symbol for caution.
Otherwise the machine works good.
Thanks.........John
I'm looking for any help I can get regarding my Komatsu PC28UU-2E.
I can't find any manuals out there at all. Nothing.
My problem is the arm started moving slow and now the boom is slow going up.
Every other function seems normal.
I did read about the potentiometers on the arm and boom. But, I cannot find any definite information on how to troubleshoot these potentiometers. Does anyone have a service manual with more info so I can start
trying to figure out if they are functional or not. I'm going to start there and follow the wires back to their termination point at the other end.
I do not have a operators manual either. I'm wondering/asking if the switch by the ignition key can reset the safety functions. There is a flashing light on the dash with what I believe to be a Japanese symbol for caution.
Otherwise the machine works good.
Thanks.........John