CONDENSER LOUVER ACTUATOR

TM 5-4120-369-14

CONDENSER LOUVER ACTUATOR

5-29.

Removal. Remove actuator as follows:

Caution should be exercised with fluorocarbon refrigerant

gas as they can displace oxygen and thereby cause suffocation.

Personnel with a history or other evidence of cardiac

rhythm abnormalities should be made aware of the potential

for aggravation of existing cardiac rhythm abnormalities or

the induction of arrhythmias, as a result of exposure to

fluorocarbon refrigerant gases (freons). Such individuals

should be evaluated by local medical authorities before

working in environments where potential freon exposure

may occur.

(1) Refer to paragraph 6-3 and discharge the refrigerant system.

(2) Refer to paragraph 4-18 and remove housing covers.

(3) Refer to figure 5-13 and loosen mechanical screw end to loosen control wire.

(4) Remove screw, lockwasher and loop clamp.

(5) Remove push-pull control assembly clips at each end and remove push-pull control.

(6) Disconnect flare nut from end of actuator cylinder.

(7) Remove two nuts and lockwashers (located inside fan housing) from bracket and

remove actuator cylinder. If cylinder is to be replaced, remove rivets and retain push-pull

control assembly brackets.

Install actuator cylinder as follows:

Installation.

(1) Reinstall push-pull control assembly brackets on replacement cylinder.

(2) Install actuator cylinder (figure 5-13) with studs through openings in fan housing.

Install lockwashers and nuts on studs.

(3) Connect flare nut to actuator

(4) Install push-pull control clips to hold control in position.

(5) Adjust control as described below.

Adjustment.

Before system is charged, adjust louver push-pull control as follows:

(1) Close louver blades and tighten screw in mechanical post to lock wire on that end.

(2) Extend actuator rod until there is a 1/4 inch space between inner edge of

mechanical post bracket and the face of the cylinder. Tighten the screw.

(3) Refer to paragraph 4-19 and install housing top covers.