DRAFT
TM 5-4210-249-13&P-1
OPERATOR MAINTENANCE
FOAM SYSTEM FLUSHING
FOAM SYSTEM FLUSHING
CAUTION
Foam agent can cause operating components, such as valves, to stick if solution is
allowed to dry. Many types of foam agents have penetrating properties, which can
remove or accelerate deterioration of greases and/or lubricants. Special attention
should be given to lubrication requirements of equipment normally in contact with
foam solution such as valves, monitors, nozzles, etc. More frequent lubrication
may be necessary. It is recommended that the water pump and delivery system
components be flushed before they are returned to a "ready" condition.
The foam system is composed of materials that are compatible with foam agents.
END OF TASK
FOAM AGENT PIPING FLUSH PROCEDURE
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WARNING
ICON 5, 66
Open and close all valves slowly during any procedure. Sudden changes in
pressure may cause equipment to react faster than personnel can be alerted.
Ensure surrounding personnel are aware of changes being made to settings on
equipment. Failure to comply may result in injury or death to personnel and
damage to equipment.
NOTE
Make sure to close all valves once water runs clear.
Foam system flushing procedure must be done using onboard water tank.
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0040-1
