540
TROUBLESHOOTING
Studio ti 03312 540-04usa
342
15
5. Too noisy pump − Wrong pump rotation direction
− Presence of some air in oil
− Oil viscosity causing obstructions to the suction system
− Irregular inflow of oil to the pump, caused by an insufficient filtering capacity of the filter (the filter
could be dirty or not suitable)
− Big lacks of charge along the suction line
− Worn pump’s components
− Relief valve vibrations
− Mechanical vibrations due to a bad anchor action
6. Too high temperature rating − The pump is working at a higher pressure than the allowed one
− Faulty or worn pump causing internal blow-by
− Excessive blow-by through valves and cylinder
− Too viscous oil
− Continuous overloaded operation
− Too high temperature in the room where the pump unit is placed
7. Leakages by seals − Eventual abrasive substances entered into the system and circulating with oil, which have
damaged pump shaft
− Seals are faulty, broken or mounted in a wrong way
− Too hot oil
8. Pump overcharging the motor − Action
− Too viscous oil
− Obstructed delivery fine or excessive resistance
Problem Cause
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