MODERN BURNER UNIT (MBU)
UNIT MAINTENANCE PROCEDURES
REFLECTIVE HEAT SHIELD AND BURNER TUBE ASSEMBLY
THIS SECTION COVERS:
MBU shut-down, cool, and disconnected from power source
Tools and Special Tools
Shop Equipment Automotive Maintenance and Repair: Organizational Maintenance, Common No. 1
(WP 0038, Table 2, Item 2)
This procedure contains information and instructions to keep the MBU in good working order by
inspecting and replacing the reflective heat shield top fasteners, or the entire reflective heat shield
assembly, consisting of the reflective heat shield, insulation layer, burner well, carriage bolts, and self
Two Person Lift
The MBU weighs approximately 58 pounds fully fueled (26.3 kg). Two persons must carry the
fully fueled MBU, lifting with legs, not back, to prevent injury.
Do not attempt service procedures on a burner that has recently been in operation. Let the
burner cool down before performing these procedures to avoid the possibility of serious burns.
Inspect the reflective heat shield and burner tube assembly for physical damage, such as dents,
perforations or severe warping. Check mounting hardware for security.
Temporarily remove the Fuel Delivery Block from the burner tube mounting shafts as described in WP