50 UNLOADING
Check to make sure that the pressure relief device is in proper working condition. Make sure that the valve body and exhaust vents are kept clear of buildup and other obstructions. Periodically check to ensure thread tightness. Blower vibration may loosen them over time. Ensure that all the gauges are in proper working order. If the gauges are unresponsive during working conditions, check for clogs. (1) Tank air pressure gauge (1) Line air pressure gauge
Start the blower and pressurize the tank through the aerator(s) to normal
the product as well. The line pressure should read 0 during this process. Make sure the blow down valve is closed. (see TTMA RP No. 83,84)
All product valves must be closed before removing the discharge cap. Beware of possible product retention under the cap when it is being removed. Make sure that you have a good connection of the discharge hose before opening the product valves.
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