Conduct spray operation as per plan and prepare in-flight portion of system log,
At completion of swath, operation or mission9 move valve control lever to close position,
Pump brake should be applied at completion of operation.
Tank contains some spray fluid at end of flights tank must be drained. (Drain hose is provided)
Remove quick-disconnect from ground loading unit and fasten to quick-disconnect on spray system
in aircraft, as in loading operations Locate fluid container immediately underneath and remove quick-
disconnect at end of drain operation.
Using GLU so that it may be flushed also, fill spray tank with water, fuel oil or other desired flushing
Fly to acceptable area and permit system to unload by spraying in conventional manner.
SOME NOZZLES AND/OR PLUGS MAY BE REMOVED PRIOR TO FLUSHING
OPERATION TO EXPEDITE CLEANING AND FLUSHING PROCESS,
An alternate but less thorough method of cleaning and flushing is to dump cleaning fluid by gravity
feed while aircraft is on the ground making sure control valve is in open position, Normal chemical
precaution should be taken,