Dump truck hydraulic pump does not rise, what will happen?

Answer:

In situations like this up and then slowly decline, will not stay, is a one-way valve problem (or gear pump one-way valve is broken, or limit the one-way valve in the valve is broken), this situation can only change, please contact the container manufacturer, has six customer service, even. Paul they will help identify the problem.

Dump truck hydraulic cylinder general down in several cases:There is a problem with the hydraulic cylinder;Gear pump in the oil one-way valve problems, it was one-way, and indeed back to the oil;The check valve in the limit valve has the problem of returning oil; the problem caused by the hydraulic cylinder is not slowly uniform but rather fast falling and stopping for a while;