Removal and Replacement of Air Filters

TM 11-5820-695-35

3-20.1 Removal and Replacement of Air Filters

T-1054/GRC-144 is equipped with three air filters, as is

equipment R-1467/GRC-144. Two air filters are located

inside the electrical equipment cabinet (1A15 or 2A15),

one on each of the two doors (Fig. 3-1,3-3.1). A third

filter is mounted on top of the cabinet.

a. Door Mounted Air Filters To remove or replace a

door mounted air filter proceed as follows:

(1) Lift and turn the three cabinet door latch

handles and open the two cabinet doors.

(2) If the air filter is seated in a retaining frame

merely slide the filter upward and remove from the frame

If the filter is retained by six captive screws, first loosen

the screws and then slide the filter upward to remove (Fig.

(3) If the air filter is to be cleaned, use a

solution of water and detergent Allow to dry before

replacing (4) Insert cleaned or replacement filter Into the

retaining frame If the filter is retained by six captive

Figure 3-3.1. Door mounted air filter removal.

screws, tighten the screws loosened in (2) (5) Close and

latch the two cabinet doors.

b. Cabinet Mounted Air Filters To remove or replace

the air filter mounted on top of the electrical equipment

cabinet 1A15 (Fig 3-7) or 2A15 (Fig 3-20) proceed as

follows.

(1) Set POWER ON-OFF switch on the meter

panel assembly 1A15A8 or 2A15A2 to OFF.

(2) Loosen lint, do not remove the facer air

filter screws securing the air filter to the top of the

electrical equipment cabinet.

(3) Remove air filter.

(4) If the filter is to be cleaned, use a solution

of water and detergent. Allow to dry before replacing.

(5) Place the cleaned or replacement filter on

top of the electrical equipment cabinet, aligning the four

screw holes. Tighten the screws.

Change 5 3-34.1