TM 10-7310-281-13&P
MODERN BURNER UNIT (MBU)
0009 00
TROUBLESHOOTING PROCEDURES
0009 00-4
THIS PROCEDURE COVERS:
MBU Shut-down during operation
INITIAL SETUP:
Maintenance Level
Materials/Parts
Operator
None
ANY INDICATORS LIT?
Yes
No
CHECK POWER SOURCE, BATTERY PACK, OR
POWER CONVERTER SWITCHES. CHECK 24VDC
POWER EXTENSION AND BRANCH CABLES FOR
PROPER CONNECTIONS. WHEN HOUR METER
BACKGROUND IS LIT, RE-START PMB IAW WP
0005 OF 10-7310-281-13&P. IF HOUR METER
BACKGROUND DOES NOT LIGHT UP, VERIFY
POWER REQUIREMENTS ARE BEING SUPPLIED.
RED INDICATOR LIT ?
LOW FUEL? FILL FUEL TANK AND START MBU IAW WP 0005 OF TM
VOLTAGE? VERIFY POWER IS AVAILABLE AT SOURCE. ENSURE 24VDC EXTENSION AND BRANCH CABLES ARE
FIRMLY CONNECTED TOGETHER, TO 24VDC SOURCE, AND TO MBU. WHEN HOUR METER BACKGROUND IS LIT
START MBU IAW WP 0005 OF TM.
Yes
No
REFER MBU TO UNIT MAINTENANCE
PROCEED WITH OPERATION.
SERVICE? ATTEMPT RE-START OF MBU IAW WP 0005. OF TM UP TO THREE TIMES (TO PURGE ANY AIR THAT MAY BE
IN THE FUEL SYSTEM). IF INDICATOR IS STILL LIT, FUEL FILTER MAY BE DIRTY, AIR ASPIRATING NOZZLE CLOGGED
OR IGNITOR MALFUNCTIONING. REPLACE THESE PARTS IN THE ORDER STATED IAW THE TM.
MBU OPERATES NORMALLY?
