Subject to flight plan, manual fan brake may be released immediately after takeoff to permit pre-
WARNING: DO NOT RUN PUMP DRY IN ACTUAL OPERATION
When planned altitude and speed have been attained and aircraft has reached designated test or
operational area, in-flight check-out may proceed.
If brake has not been previously released, release at this point. Open valve and visually check
nozzles for spray.
Observe pressure gauge for proper reading (as per flight plan), observe nozzles for proper operation
and flow and check for system leaks.
After approximately 30 seconds, close valve.
Check for nozzle drip and note for future action.
Repeat in-flight spray system checkout (steps 3 through 6).
Apply pump brake handle or permit pump to run as per flight plan.
NOTE: SYSTEM IS NOW READY FOR OPERATION.
Prior to reaching spray area, release pump brake, if not in a release position.
At desired point, move valve control lever to open position.