ENGINE AFES - ENGINE COMPARTMENT FIRE SENSING ELEMENTS: REMOVAL AND INSTALLATION(CONTINUED)INSTALLATIONESecure sensing element (1) in each mounting and clipassembly (4) by flipping clip over each rubber bushing (6)CAUTIONinstalled on sensing element (1). Secure clip using quarter-turn fastener (5).When hand shaping sensing element forinstallation, do not damage sensing elementby crushing or too much bending (allowableradius - 6 inches minimum). Ensure 1/2-inchto 3/4-inch clearance between sensingelement and personnel heater exhaust tube.AInstall 24 rubber bushings (6) spacing equally along lengthFRemove cap from elbow coupling. Join connector of sensingof sensing element (1).element (1) to elbow coupling (3) and tighten.BIf removed, install 24 mounting and clip assemblies (4) on 24G Remove cap from elbow coupling. Join connector of sensingengine compartment clip assembly mounts, securing eachelement (1) to bulkhead elbow coupling (2) and tighten.with one screw (7) and one new lockwasher (8).Close battery and louvered engine access doors.CInstall sensing element. Shape sensing element (1) by handto fit in engine compartment. Route sensing elementcorrectly through front portion of engine compartment.DAfter sensing element is installed, move rubber bushings (6)on sensing element (1) so each will engage one mounting andclip assembly (4).CAUTIONBefore installation, clean connector fittingsthoroughly with an electrical contact cleaner(item 74, Appx D).WARNINGRemove locking pin in valve actuator guardof engine extinguisher cylinder bottle no. 2 (p14-28). Turn engine T/A panel Maint-enance switch to horizontal position. TurnMASTER switch ON to activate engineAFES.14-19Change 3
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