TM 5-4520-241-14
(5) Remove the cap screws and washers which fasten the mounting brackets to the heater case. Reposition
them to permit mounting of the heater with 5/16 inch (8 mm) bolts or lag screws.
(6) Open the control box, and unlock the two studs which secure the control box to the heater case. Rotate the
control box so that the printing on the control box cover is upright, and tighten the two studs. Close the control box.
c. Left Side Mounting.
(1) Disconnect the fuel line from the carburetor. Remove the four machine screws and lock washers which
secure the carburetor to the burner head. Rotate the carburetor 90 degrees so that the float bowl is vertical, and reinstall
the screws. Reconnect the fuel line to the carburetor.
(2) Rotate the fuel filter so that the bowl is hanging below the filter body.
(3) Adjust the louver control handle to open or close the louvers as required.
(4) Remove the cap screws and washers which fasten the mounting brackets to the heater case. Reposition
them to permit mounting of the heater with 5/16 inch (8 mm) bolts or lag screws.
(5) Open the control box, and unlock the two studs which secure the control box to the heater case. Rotate the
control box so that the printing on the control box cover is upright, and tighten the two studs. Close the control box.
d. Inverted Mounting.
(1) Disconnec t the fuel line from the carburetor. Remove the four machine screws and lock washers which
secure the carburetor to the burner head. Rotate the carburetor 180 degrees so that the float bowl is vertical, and reinstall
the screws. Reconnect the fuel line to the carburetor.
(2) Remove the screws that secure the assembled fuel receptacle, and fuel filter to the front of the heater case.
Invert the position of the receptacle and the fuel filter assembly.
(3) After the fuel receptacle is secured, make sure that the fuel filter bowl is hanging below the filter body.
(4) Adjust the louver control handle to open or close the louvers as required.
If both louver openings are
obstructed, remove the bottom plate to provide an air inlet.
(5) Remove the cap screws and washers which fasten the mounting brackets to the heater case. Reposition
them to permit mounting of the heater with 5/16 inch (8 mm) bolts or lag screws.
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