• 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!

Volvo ECR50D hydraulic problem

M

Milos 123

Well-Known Member
Joined
Jun 24, 2018
Messages
91
Location
Montenegro
Hello everyone. I have a problem with my Volvo ECR50D excavator. It is too slow and lacks power. The main hydraulic pressure is low at 160 bar. This issue started when I had a problem with the hydraulic boom cylinder, which was damaged internally and the tube was worn. I suspect that some metal debris from the cylinder may have entered the main valve, but I haven't been able to find it. Can anyone help?
 
C

Cliffy

Senior Member
Joined
Oct 14, 2023
Messages
529
Location
Australia
Are all functions low? If so, First i would start with main relief valve. Then look into load sense circuits. If nothing found then look at pump. Swash plate control valve my be jammed. But my guess would be worn out or scoring in pump.
 
M

Milos 123

Well-Known Member
Joined
Jun 24, 2018
Messages
91
Location
Montenegro
Yes all functions slow, I think problem is not in pump because it happens at once when cylinder was demaged, there is no main relief valve only LS line relief valve, maybe to check it ?
 
You must log in or register to reply here.
Top