A.Oil inlet valve opening too quickly
B.Oil temperature too high
C.Diameter of gravity disc too small
D.Viscosity of oil too low
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A.cut off the power
B.cut off the oil inlet
C.open guide water valve
D.close oil outlet value
A.acid
B.sludge
C.mechanical impurity
D.salinity
A.too little seal water
B.improper gravity disc
C.oil discharging pump not working very well
D.low water level of the working water
A.100%
B.80%
C.1/2
D.1/3
A.100%
B.1/2
C.1/5
D.1/3
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