TM9-4120-400-14
FRESH AIR DAMPER AND ACTUATOR. - continued
5-5.
INSTALLATION
1.
Insert blind nut (14) into actuator pIate (19) and secure with push on nut (20).
2.
Install screw (13) into blind nut (14). Do not tighten.
Attach two sleeve bearings (22), cover (23), mechanical post (2), and self-locking nut (21) to damper (7).
3.
4.
Install screw (1) into mechanical post (2). Do not tighten.
Install actuator plate (19) with screw (16), two spring washers (18), and self-locking nut (17).
5.
Install damper (7) in opening of housing.
6.
7.
Secure damper cover (23) to housing with two screws (4), lock washers (5), and flat washers (6).
Install one nut (15) seven turns onto each end of push-pull control cable (3).
8.
Install ends of cable through openings in housing.
9.
10. Install outer nuts (15) on push-pull control cable (34) and tighten.
11. Insert cable (3) ends into mechanical post (2) and blind nut (14).
12. Install loop clamp (12), spacer (11), screw (8), nut (10), and washer (9).
NOTE
Be sure equal lengths of push-pull control cable (3) extend from ends.
13. Put actuator plate (19) in center position and tighten screw (13).
14. Put damper (7) in center position and tighten screw (1).
ADJUSTMENT
Loosen screw (13) on blind nut (14) to release push- pull control cable end.
1.
Move move push-pull cable (3) in and out and determine the center between the two extreme stop points.
2.
Move actuator plate (19) so that it is also centered on the curved portion of the plate.
3.
4.
Tighten screw (13) on blind nut (14).
5.
Check actuator plate (19) for smooth operation.
NOTE
FOLLOW-ON MAINTENANCE:
Install compressor (para 5-34).
Install mist eliminator (para 4-16).
Install supply air louver (para 4-14).
Install return air louver (para 4-13).
5-9
