When you start refueling tanker, the flow rate is slow

A mechanical pump filter clogging (including cone filter and oil filter gun); 2, tanker or pipeline leak components lead to a lot of air into the gas into the vane pump Separator greater than the maximum amount of gas. Boot test, oil separator exhaust pipe will exhaust blows, and depending on the oil at a large number of bubbles. Maintenance should first check whether the parts tanker leak exists, then check the oil line and bottom valve Mifengbuyan problem; 3, vane pump failure; ① vane pump or pump relief valve closed lax anti-pad wear, damage is also one of the reasons for the slow drain vane pump; ② badly worn blade or vane pump with debris stuck to the blade, resulting in the individual blades can not pop, but also make the inner vane pump discharge increases, the oil tanker discharge rate change slow. 4, oil separator fault ① oil separator or small float off into the oil, a normally open valve leading to insufficient pressure hyperbaric chamber; ② oil separator too much debris in the lower part of the oil valve resorted to the oil valve can not be effectively open; ③ manual gas pump separator pressure pad superstructure damage, resulting in insufficient pressure hyperbaric chamber Mifengbuyan, drain slower.