TM 10-7310-281-13&PMODERN BURNER UNIT (MBU)0009 00TROUBLESHOOTING PROCEDURES0009 00-4THIS PROCEDURE COVERS:MBU Shut-down during operationINITIAL SETUP:Maintenance LevelMaterials/PartsOperatorNoneANY INDICATORS LIT?YesNoCHECK POWER SOURCE, BATTERY PACK, ORPOWER CONVERTER SWITCHES. CHECK 24VDCPOWER EXTENSION AND BRANCH CABLES FORPROPER CONNECTIONS. WHEN HOUR METERBACKGROUND IS LIT, RE-START PMB IAW WP0005 OF 10-7310-281-13&P. IF HOUR METERBACKGROUND DOES NOT LIGHT UP, VERIFYPOWER REQUIREMENTS ARE BEING SUPPLIED.RED INDICATOR LIT ?LOW FUEL? FILL FUEL TANK AND START MBU IAW WP 0005 OF TMVOLTAGE? VERIFY POWER IS AVAILABLE AT SOURCE. ENSURE 24VDC EXTENSION AND BRANCH CABLES AREFIRMLY CONNECTED TOGETHER, TO 24VDC SOURCE, AND TO MBU. WHEN HOUR METER BACKGROUND IS LITSTART MBU IAW WP 0005 OF TM.YesNoREFER MBU TO UNIT MAINTENANCEPROCEED WITH OPERATION.SERVICE?ATTEMPT RE-START OF MBU IAW WP 0005. OF TM UP TO THREE TIMES (TO PURGE ANY AIR THAT MAY BEIN THE FUEL SYSTEM). IF INDICATOR IS STILL LIT, FUEL FILTER MAY BE DIRTY, AIR ASPIRATING NOZZLE CLOGGEDOR IGNITOR MALFUNCTIONING. REPLACE THESE PARTS IN THE ORDER STATED IAW THE TM.MBU OPERATES NORMALLY?
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