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MAINTENANCE
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Servicing Bag Filter
Note: Always have an adequate supply of filter elements on hand.
Changing Bag Filter:
The vacuum gauges on the bag filter vessel show the pressure drop over the filter. 15”HG vacuum indicates the bag filter
element should be replaced.
1.
For a “no mess” bag filter change, the bag filter vessel should be pumped empty.
2.
Close the inlet ball valve and then open the air purge valve on the top of the bag filter housing to allow air to enter.
3.
Turn on the pump at low air pressure (low flow) for a couple strokes until fuel is removed from the bag filter vessel
(pumped dry).
4.
Make sure pump is turned off, pressure is released and discharge valve after the pump is closed (close all discharge
valves), then open the lid.
5.
Replace bag filter element, making sure it seals tight within the perforated basket. For best results bag should be fully
extended into the basket. Check inner housing and basket for debris and sludge and remove if necessary. Also ensure
that the basket is seated correctly and tight on the O-Ring within the bag filter vessel.
6.
Apply a film of lubricating oil to the lid gasket. Replace O-Ring if worn or damaged.
7. Tighten lid screws evenly (alternating the screws) to ensure air cannot enter the system and lid is fully seated onto
O-Ring gasket.
8. Verify inlet and outlet valve positions for proper operation mode.
The material trapped inside the filter can be inspected to better understand the types of contaminants that have been
removed from the tank.
Note: Disposal of fuel, associated waste, and filters must be in accordance with all applicable Federal, State, and Local
rules, laws, standards, and regulations.
Summary of Contents for MTC HC-50
Page 23: ...NOTES...
