Oil separator failure

① fuel hand pump filters (including conical strainer) congested. Filters should be cleaned to remove debris; ② oil separator valve stuck untapped oil tanker caused no diesel hand pump. Maintenance should remove the oil valve, re-installed after clearing the debris, so that it can move up and down freely; ③ small oil separator float into the oil or fall off, resulting in a high-pressure hyperbaric chamber can also cause tanker ④ oil separator pressure pad superstructure damage caused by high-pressure chamber communicating with the pressure chamber, resulting in high-pressure hyperbaric chamber not form leaving no oil tanker; no oil. ⑤ hydrocarbon human separator filter pads or spring seat damage. Replace damaged gaskets; ⑥ oil separator cone valve is not shutting.