Section 5: Filters
Filter Maintenance
2020 Heli-Pump Operations Manual
(Version F)
30
We Engineer Solutions
6.
Remove the head gasket and discard.
7.
Remove and discard the expended cartridge in a fire-safe place, in accordance with local and
national regulations.
8.
Flush the interior of the housing with clean, processes, filtered product or suitable solvent. A non-
metallic bristle brush will help to remove caked-on debris. Rinse the housing and unit cover with
a clean solvent and dry with soft lint-free wiping cloths.
9.
Lightly lubricate new head gasket with Vaseline or petroleum jelly and position it on the head. If
Vaseline is not available, lubricate the gasket with the fuel or oil.
10. Insert a new cartridge into the housing. Position housing (with cartridge) underneath filter head.
Push/twist cartridge onto head spigot. The head conical spring will seat/seal the cartridge in the
housing.
11. Rotate housing onto the collar bolts. Hand tighten knobs until head is snug to housing.
12. Close the drain plug or valve on the bottom of the housing.
13. Leave the vent valve on top of the unit open to allow entrapped air to escape while filling.
14. When a small amount of fluid flows from the vent valve, close it tightly.
15. During the initial filling and, after the above maintenance, and while the unit is in operation,
examine the housing and all connections for leaks, including the head/flange junction.
16. Ensure any and all leaks are identified and repaired before allowing fuel to flow through housing.
