Waterous
70-35-GP
Rev 5
Page 7 of 24
SECTION 2. SHUT-DOWN PROCEDURE
1. Close air valve(s)
2. Turn off Foam proportioner by moving the selector handle to zero
3. Flow clear water through discharge hose(s) until no bubbles are present
4. Close discharge valve
5. Move Auto Sync control to UNLOAD
6. Shut engine down
WARNINGS:
•
Compressed air can be dangerous. Read and understand the operating
instructions for the Waterous compressed air foam unit and individual
components prior to operating.
•
DO NOT use the compressed air foam unit as an air source for SCBA or any
breathing air supply.
•
Discharge outlets that are capped, hose lines that are valved and charged may
contain compressed air. Relieve all pressure BEFORE attempting to remove
any caps, fittings, nozzles, or to perform maintenance to prevent serious
personal injury.
•
Nozzle reaction force is significantly increased at the time the nozzle valve is
opened in compressed air foam operations. OPEN CAFS NOZZLES SLOWLY!
•
Operating the compressed air foam unit with water and compressed air
pumped through a discharge without foam concentrate will create a potentially
dangerous condition known as "slug flow"; where unmixed pockets of water
and air are passed through the nozzle, causing erratic nozzle reaction.
•
For compressed air foam operations, use only fire hose that is rated at 200 PSI
or higher working pressure.
•
The unit operator should have a thorough understanding of "Boyle's Law" (The
law of compressed gases) prior to operating the compressed air foam unit.
•
It is recommended that the operator wear/use full safety equipment (i.e. gloves,
eye protection) on the fire grounds and when operating this system.