• Thank you for visiting HeavyEquipmentForums.com! Our objective is to provide industry professionals a place to gather to exchange questions, answers and ideas. We welcome you to register using the "Register" icon at the top of the page. We'd appreciate any help you can offer in spreading the word of our new site. The more members that join, the bigger resource for all to enjoy. Thank you!

Variable pressure compensated valve on hitachi ex220lc-3

N

natetate100

Member
Joined
May 23, 2023
Messages
24
Location
Arkansas
Hey guys, so I've been having trouble getting my arm cylinder to move right. It moves extremely slow. So I was going through the stuff trouble shooting and went to check the pressure going from the solenoid valve to the vpcv and the pressure stays from 600 to 900 psi depending on the rpm it doesn't change when you move the lever. I cleaned it nothing changed. I also checked the voltage to it, reads 27 volts just like the boom. Also when it was unhooked the arm moves completely fine. So 4 questions, first what would be causing that? Is the pressure supposed to change when you move the spool. Last is does it have to be hooked up? Can I run it without that pressure going to the vpcv? I appreciate all of your help.
 
You must log in or register to reply here.
Top