Table 3-1. Preventive Maintenance Checks and Services. (Continued)
EQUIPMENT IS NOT
ITEM TO BE INSPECTED
B D AWMQ
Drain Cock .
Open the drain cock (1) and allow all condensed
moisture to drain off. Close the drain cock.
Air Filters .
Clean the air filters as follows:
Remove wing nut (1), washer (2), and co-
ver (3). Remove filter (4) and screen
(5). Clean filter (4) and screen (5)
in a solution of mild soap and water.
Rinse thoroughly and allow to dry. Wipe
the cover (3) and body (6) clean with
a clean cloth. Install screen (5),
filter (4), cover (3), washer (2), and
wing nut (1).