4-16. REMOVE/INSTALL PURGE PORT DAMPER ASSEMBLY - continued.
Install damper mechanism with motor attached in damper housing. See figure 4-7.
Place new damper mechanism into new damper housing and attach with four screws,
flat washers, lockwashers, and nuts.
Tighten damper mechanism mounting screws and nuts.
Install the purge port damper assembly. See figure 4-7.
Place purge opening frame on damper housing and insert housing with damper
mechanism and motor attached into laboratory purge opening.
Fasten damper housing in place with two rivets
Insert four long screws with flat washers through door hinge, damper flange, purge
opening frame, and laboratory wall, install flat washers and nuts, tighten screws and
Place filter on damper housing, attach with four screws and flat washers, tighten screws.
Connect motor electrically and remove tags.
Restore power to the laboratory and run an operational test of the purge system.