TM 5-4520-253-13ADJUST/lNSPECT/SERVICE/REMOVE/lNSTALL DOORS ANDB O T T O M C O V E R ( C O N T)REMOVAL:Death or serious injury could occur if precautions are nottaken when maintaining this equipment. Position HEATER-OFF-FAN switch to OFF, remove power cable plug fromPOWER RECEPTACLE, and ground capacitors C1 and C2at end cover of combustion blower. Always have anotherperson standing by who is trained in electric shock first aid.Remove electrical charge from ventilating air motor capaci-tor C3 by shorting out contacts using tool having insulatedhandle.Allow sufficient time for heater to cool to room tempera-ture before gaining access to heater compartments.NOTEOpen right and left doors andfront access door to allow accessto hardware inside heater case1.2.3.during removal.Remove six screws (1) and lockwashers (2} and lift off bottomcover (3).Remove four screws (4), lockwashers (5), and nuts (6).Lift off left door (7). Usesame procedure for removingright door.RemovewashersLift offthree screws (8), lock(9), and nuts (10).front access door (11).3-78
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