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General Inspection
Check vacuum pump for any visible damage or wear
Inspect the pump's oil level
Examine the pump's inlet and exhaust filters
Lubrication
Change the pump oil
Apply grease to the motor bearings
Mechanical Inspection
Check the pump's coupling/belt for wear
Inspect the pump shaft for signs of scoring or seizure
Verify the pump's operating speed
Electrical Inspection
Measure the motor's current draw
Check the motor's insulation resistance
Inspect the pump's electrical connections
Cleaning and Maintenance
Clean the pump's exterior surfaces
Check and clean the pump's inlet and exhaust filters
Inspect the pump's internal components for debris