5. VACUUM SYSTEM CHECK LIST
CHECK POINT
CHECK
Before
Operation
Open Cooling water supply valve. Is it flow properly ?
Close Vacuum suction line
Open Discharge line
Check lubricant color and level. Is it acceptable ?
Check Belt Tension(for V-belt type only)
Run Vacuum pump for few minute before open the Suction line
During
Operation
Check Vacuum level in full vacuum. Is it normal ?
Check Electric condition(Voltage & Amperage) in full vacuum.
Is it acceptable ?
Any abnormal noise ?
Check operation temperature. Is it normal ?
Check lubricant color and level. Is it acceptable ?
Stopping
Run Vacuum pump for few minute after closing Suction line
If foreign material is introduced inside of Vacuum pump, clean it
with cleaning agent.
Discharge cooling water from vacuum pump if the pump is
stopped for long time
Make sure that Suction & Discharge line is closed
Make sure Power supply is cut off
