If APU still runs, go outside to APU compartment and turn off emergency fuel shutoff valve (see
Transfer pump set-up.
No smoking or open flames are permitted during any refuel or defuel operation and
M88A1's portable CO2 fire extinguisher must be manned and readily accessible.
Check fuel tank FUEL CONTROL VALVES for desired position (see para. 2-11i(6)).
Do not change FUEL PUMP CONTROL handle without setting FLOW REGULATOR
handle to 10.