• 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!

PC220-7 stalling under load and bellowing black smoke

rockfall

Well-Known Member
Joined
Jul 17, 2011
Messages
98
Location
Dh
Hi guys,
I just had my hydraulic pump done. Replaced almost every inner parts along with the two solenoids. I also replaced the pilot valve but the function speed is not satisfactory. It stalls and blow black smoke. I had the air intake line cleaned.

any ideas?

Thanks
 

John C.

Senior Member
Joined
Jun 11, 2007
Messages
12,870
Location
Northwest
Occupation
Machinery & Equipment Appraiser
Have you checked any pressures? It sounds like something didn't get put together properly.
 

rockfall

Well-Known Member
Joined
Jul 17, 2011
Messages
98
Location
Dh
The smoke was there before and I have set the tracks on 380 bars and boom raise is something around 330 bars
 

John C.

Senior Member
Joined
Jun 11, 2007
Messages
12,870
Location
Northwest
Occupation
Machinery & Equipment Appraiser
Have you checked you load sense pressure differentials?
 
Top