Hello my friends, I have a Komatsu PW130-6k,the machine is only used a few times a month. After working a 10 minutes she becomes very slow and not even moving, tomorrow if I have a spare time I will go there to check pump and pilot pressures, I am suspecting to have some internal pump problem. Does anybody knows the pressures values?
A photo of the pumps would be helpful. As I recall the PW machines used a higher Dash number for the hydraulic systems than the PC. For instance a PW90-5 used the same hydraulic system as a PC90-3. I've never seen a PW130 so a photo of that would also be nice.
I measured Hydraulic pressure, when cold the machine reaches 300bar, after working a little bit I doesnt got after 100bar.
I am thinking taking the pump out and taking it to an hydraulic shop, the engine works fine, never goes down with revs.