B-17 Pilots Manual.pdf

.PI LOT(14) When the engine fires, move the mixture controlto"AUTOMATIC RICH."CAUTIONDo not advance the throttles as lean mixtureand backfire hazard will result.COPILOT.f.. Throw "MESH" switch while "START"switch is held on.(14) When the starter is meshed, prime withquick strokes (to atomize the primer charge)until the engine fires.(15) If necessary to prevent engine from quittingdue to lack of fuel, pump primer with severalslow strokes.(18) If no oil pressure is indicated within 1/2minute after starting, direct copilot to stopengine with mixture control. Cut ignitionand investigate.(19) In case of fire' in the exhaust system, runup the engine in an attempt to blowout thefire. If this fails, direct copilot to stop theengine.(20) Close cowl flaps if the fire is in nacelle 1 or 2.(21) If fire is not smothered by closing the cowlflaps, close fuel shut-off valve, stop boosterpump, and direct copilot to pull fire extinguisher,both charges if necessary.(22) Before resuming operations after fire, besure that CO2 cylinders are replaced.CAUTIONReturn primer to "OFF" position.(16) Shut off booster pump if fuel pressure fromengine pump remains steady.(17) If engine stops, return mixture control to"ENGINE OFF" immediately, cut ignitionswitch and repeat the starting procedure.(18) After engine starts, check for indication ofoil pressure. If no pressure is indicatedwithin 1/2 minute, notify pilot; move mixturecontrol to "ENGINE OFF" when directedby pilot.(19) When directed by pilot, stop engine by moyingmixture control to "ENGINE OFF."(20) Close cowl flaps if the fire is in nacelle 3 or 4.(21) Pull fire extinguisher charges (if available)at command from pilot.NOTEIf engine accessory cowling is not installed, itis unlikely that the fire can be extinguished bythe CO2 system. External fire extinguishersmust, therefore, .be used.*28