Kobelco sk330-6 excavator change new hydraulic pump and I check the pressure it seems same as apec . But the problem is become hydraulic system slow and when put HL system overloaded and engine shut down automatically My engine idle rpm is 900 and high Rpm is 2380 Can any one help me regarding the issue
How many rpms do you have full idle and hydraulikz on full stroke, should be around 1850 +/- 100 rpms
Yes I mean engine full RMP is almost 2300 And also checked the pilot pump pressure it almost 45bar and hydraulic main pressure is also more then 50 bar . But the problem is when I operate boom lift it will go load and engine shut down . Is this probleem for the hydraulic valve block spool stucks? Or Main relief valve ?