TM 10-7310-281-13&PMODERN BURNER UNIT (MBU)0021 00UNIT MAINTENANCE PROCEDURES0021 00-1CONTROLLER ASSEMBLYTHIS SECTION COVERS:Inspect, Repair, ReplaceINITIAL SETUPMBU disconnected from power source and cooled downMaintenance LevelMaterials/PartsUnitTools and Special ToolsShop Equipment Automotive Maintenance and Repair: Organizational Maintenance, Common No. 1(WP 0038, Table 2, Item 2)GENERALThis procedure contains information and instructions to keep the MBU in good working order byinspecting and replacing the controller hinge pins or the entire controller assembly, consisting of thecontroller, control panel, controller harness, and hinge pins.WARNING!Two Person LiftThe MBU weighs approximately 58 pounds fully fueled (26.3 kg). Two persons must carry theMBU when fully fueled, lifting with legs, not back, to prevent injury.INSPECTInspect condition of controller assembly including the control panel, harness and connector housing, andhinge pins for damage such as a broken or cracked housing, or loose, missing or bent hinge pins, frayedinsulation, loose or exposed wires or broken connector on harness.REPLACEOpen hinged controller assembly(1).Follow the cable harness (2) from the back of the controller assembly into the MBU. Note that the wiresexiting each connector are color coded. Disconnect the eight connectors (3) at the opposite end of theharness. Remove green ground cable (7) and screw (8) from controller assembly (1)To remove the hinge pins, proceed as follows:Remove snap rings(4) from hinge pins (5) with flathead screwdriver and remove hinge pins from frame(6).Remove the entire controller assembly (1) from system.
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