TabIe 4-1. UNIT PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS) - (cont.)
Item To Be
Conditioned Air Outlet Grille
a. Check operation of louvers for stiffness or binding.
b. Remove, clean, inspect, repair, and lubricate grille as
a. Remove screws and flat washers, and remove fabric
cover to gain access to top panel.
b. Remove, clean, and inspect the top panel.
c. Remove, clean, inspect, and service the mist eliminator
d. Replace the mist eliminator if it is damaged.
Compressed air used for cleaning purposes will
not exceed 30 psi (2.1 kg/cm2). Do not direct
compressed air against skin. Use goggles or full
a. Blow accumulated dust out of the air passages in the
evaporator coil using compressed air or the discharge
side of a portable vacuum cleaner. Blow from front to
back in the opposite direction from operational airflow.
b. Inspect coil for obvious damage and all mounting hard-
ware for tightness and security.