MODERN BURNER UNIT (MBU)
UNIT MAINTENANCE PROCEDURES
FUEL INTERFACE FITTING
THIS SECTION COVERS:
MBU shut-down, cool, and disconnected from power source (WP 0005)
Drain Fuel Tank (WP 0011)
Joint Sealer Compound
Tools and Special Tools
(WP 0060, Table 1, Item 2)
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 fuel interface fitting.
Two Person Lift
The MBU weighs approximately 58 pounds fully fueled (26.3 kg). Two persons must carry the
MBU, lifting with legs, not back, to prevent injury.
Inspect the fitting for physical damage and secure attachment. Check free movement of the valve stem.
Fire / Fuel Contamination
Before proceeding with this procedure, the MBU fuel tank must be drained completely as
described in work package 0011. Have rags on hand to clean up fuel spillage that may occur
to prevent contamination. Do not perform this procedure near an open flame to prevent fire.
To replace the fuel interface fitting (1) loosen and remove the fitting from the union (2) using a wrench,
while holding the union in place with a second wrench.