DEKKER Vacuum Technologies, Inc. – HullVac / September 2016
21
Every 5 Years
Replace the bearings, shaft seals, shaft seal wear sleeves, and o-rings.
Replace the oil flow solenoid valve wear components.
Replace the gas ballast valves.
MAINTENANCE
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.
Seal Fluid/Oil
The product(s) are shipped with DEKKER’s specially formulated
HullVac
seal fluid (hereafter referred to
as oil). DEKKER recommends that this oil be used to obtain the ultimate performance from the
HullVac
product and to maintain the 3-year warranty period.
Oil should be changed whenever it appears white or yellow, foams consistently, or when dirty. Oil change
frequency depends on the materials being pumped. For clean operation, oil should be changed every 3000
operating hours or every 9 months, whichever comes first. For other operation, oil change could range
from once or twice a week or less dependent upon the type of application.
The most common contamination is water in the oil and can be recognized by a milky appearance visible in
the site port. Closing the pump inlet valve and operating the gas ballast valves for 2 to 4 hours can remove
this water. If this does not clear the oil, change it. In applications with consistent water accumulation,
draining the water from the reservoir prior to operation is recommended.
HullVac Oil
Container Size
Standard
Water Application
1 Gallon Container
5120-0010-002
5120-0010-003
5 Gallon Container
5120-0050-000
5120-0050-008
55 Gallon Drum
5120-0550-000
5120-0550-002
Safety Data Sheets (SDS) available upon request.
