Hi, I need some help , three troubles: 1- Both PUMP are 700 psi loaded at neutral in FC, S and H modes, but perfect at D mode. 2- ANY combined movements between BUCKET and BOOM can be performed. 3- RL TRAVEL is a little slow only in a single travel operation. In D mode, both pumps work fine, and in neutral is 0 PSI ** Questions: There is a relation between these troubles? There is a procedure to check and Adjust the pressures of the different relief valves at control valve . I have the shop manual, but all I can find is a table of the pressure of the different circuits to be adjusted at the regulator but not about relief pressures. Comments are welcome and very appreciate. Regards Tiko
First Thing, somebody know what is happening about 700 psi at H, S & FC modes? I thing is about main relief valve or something with the negative control pressure.