TM 10-7310-241-12&P                                                                                                                                                               Change 1     4-22.21                  4-16.1  REPLACING THE CONTROL PANEL ASSEMBLY FOR MODEL 471012 (Continued) dd.  Replacing the Heating Element.       (1)  Remove the base plate (Subparagraph 4-16.1q, steps (1) thru (3)).            (2)  Disconnect the two heating element leads (1) from the leads attached to the circuit board (2).        (3)  Remove the two locknuts (3) that secure the heating element retaining plate (4).        (4)  Remove the retaining plate (4), fiberglass cloth, and the heating element (5) from the mounting studs. ee.  Installing the Heating Element.   NOTE When installing the heating element, ensure that the bottom surface of the main container and the top surface of the heating element are free from grit or particles of insulation.    (1)  Apply insulating compound to the non-seam side of the heating element.  Ensure that the heating       element surface, with the seam, faces towards the base plate away from the container.       (2)  Install the heating element (5), fiberglass cloth, and the retaining plate (4) to the mounting studs.       (3)  Install the two lock nuts (3) to secure the heating element retaining plate (4).       (4)  Connect the two heating element leads (1) from the leads attached to the circuit board (2). (5)  Install the piece of insulation (6) covering the heater, and the base plate (1)          (Subparagraph 4-16.1r, steps (1) thru (3)). 1 2 3 4 5 6