4-30. REMOVE/INSTALL PURGE INTAKE DOOR DAMPER MOTOR.
This task covers:
General Mechanics Tool Kit, (Appendix B, Section II, Item 2)
General Safety Instructions
Before performing any maintenance actions on electrical equipment, ensure all electrical power
has been turned off. Death or serious injury may occur from failure to do this.
Remove Intake Door Damper Motor. See figure 4-19.
Open purge intake door.
Remove two retaining nuts and flat washers and lift purge door limit switch with mounting bracket attached, clear
of filter screen.
At 2" x 4" junction box located on ECU plenum, remove two screws and cover. Disconnect three leads from
damper motor and tag for reconnection. Attach line to leads to facilitate installation.
Remove four retaining screws with flat washers and remove screen and filter.
Remove fourteen screws and flat washers from damper enclosure flange and remove enclosure with frame,
damper and motor. Carefully pull motor leads from junction box and through conduit until they are clear.
Remove two screws, flat washers, lock washer and nuts attaching motor linkage to damper blade.
Remove two screws, lock washer, and flat washer attaching motor to mounting plate and remove defective motor
Unclip linkage and remove from defective motor.