Quantcast ENVIRONMENTAL CONTROL UNIT INTAKE DAMPER/MOTOR - TM-10-6640-239-13_198

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TM 10-6640-239-13 4-65 4-29.    ENVIRONMENTAL CONTROL UNIT INTAKE DAMPER/MOTOR. This task consists of: a. Remove b. Install INITIAL SET-UP Tools Required General Mechanics Tool Kit, (Appendix B, Section III, Item 1) Materials/Parts Required Lockwashers, (12) Electrical Wire Splice (3) General Safety Instructions WARNING ELECTRICAL SHOCK Before  performing  any  maintenance  actions  on  electrical  equipment,  ensure  all electrical power has been turned off.  Failure to comply with this warning may result in serious injury or death. NOTE Procedures for removing and replacing any of the ECU intake dampers and motors are identical to those outlined in the following paragraph. REMOVE Remove ECU Intake Damper Motor.  See Figure 4-19. a. Loosen eight captive screws (1) and remove screen (2) and filter (3) from ECU intake. b. Remove two screws (4) and cover (5) from electrical junction box (6) located on plenum (7).  Tag and disconnect motor leads.  Attach line to leads to facilitate installation. c. From plenum, remove eight screws (8), lockwashers (9), 16 washers (10), and eight nuts (11) that fasten damper enclosure (12) to plenum (7).  Discard lockwashers. d. From electrical junction box (6), remove lock nut (13) from conduit (14) and carefully remove damper enclosure (12) and motor (15) from plenum (7). e. Loosen conduit nut and remove conduit (14) from motor (15).  Disconnect line attached to motor leads. f. Remove two screws (16), washers (17), lockwasher (18), and nuts (19) that attach motor linkage (20) to damper blade (21).  Discard lockwashers. g. Remove two screws (22), lockwashers (23), washers (24) and separate motor (15) with linkage (20) from damper motor mounting plate (25).  Discard lockwashers. h. Detach linkage (20) from motor (15). INSTALL Install ECU Intake Damper Motor.  See Figure 4-19. a. Attach linkage (20) to motor (15) and fasten motor in place on damper mounting plate (25) with two screws (22), lockwashers (23), and washers (24).


 


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