DEKKER Vacuum Technologies, Inc. – HullVac / September 2016
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MAINTENANCE SCHEDULE
WARNING: Before attempting any maintenance such as changing the fluid, disconnect all
power from the system by switching off the main breaker or disconnect switch. This will
prevent the system from automatically starting from a vacuum switch.
To help ensure trouble free system operation, a basic maintenance schedule consisting of the following
system checks is recommended.
During First Month of Operation
Check belt tension weekly.
Verify tightness of pump mounting bolts weekly.
Torque the side cover bolts at the end of first month of operation to 45 foot-pounds.
Every Day
Check oil level daily - oil level should be between 1/2 and 2/3 level in the site port while in operation.
Check pump temperature daily - casing temperature should not exceed 180°F.
Every 3 Months
Check belt tension.
Verify tightness of pump mounting bolts.
Every Year
Remove the oil reservoir access plate. Clean and inspect the sump for signs of metal filings that may be
an indication of excessive internal wear. Strain the oil through a mesh bag to inspect for particulates.
Remove the oil / air separator and the valve deck cover. Verify the valves are intact and free to move
up and down. Examine for signs of excessive wear.
If needed, replace the valve deck springs and wear plates.
Examine the belts for signs of excessive wear and replace as needed.
Verify if motor lubrication is required for pump motor.