VENTILATION GUARD AND VENTILATION AIR FILTER UNIT MAINTENANCE

TM 9-4120-425-14&P

VENTILATION GUARD AND VENTILATION AIR FILTER UNIT MAINTENANCE

THIS WORK PACKAGE COVERS:

Removal, Inspection, Service, and Installation

INITIAL SETUP:

Maintenance Level

Materials/Parts

Unit

Dry cleaning solvent (Item 16, WP 0121-00)

Warm soapy water

Tools and Special Tools

Tool Kit, General Mechanics (Item 1, Table 2, WP 0118-00)

Equipment Condition

Canvas cover rolled up and tied (WP 0018-00).

WARNING

Disconnect air conditioner power input connector.

NOTE

The ventilation guard and ventilation air filter mounted on the rear wall of the

housing, covers the fresh air inlet opening to prevent airborne matter from entering

the air conditioner. This unit was designed for use with CBR.

REMOVAL

Remove four screws (1), four lockwashers (2), and ventilation guard (3).

Remove ventilation filter (4) from unit (5).

INSPECTION

Inspect ventilation filter for dirt or debris that cannot be removed without damaging filter. If filter is unable to be

cleaned, replace it with a new filter.

SERVICING

Inspect filter (5). Replace damaged filter. Clean with warm soapy water or dry cleaning solvent (Item 16, WP 0121-

00). Hose with water in both directions.

Replace filter having breaks, tears, excess accumulations of dirt or grease, or other major damage.

Lubricate air filter with filter-kote (Item 17, WP 0121-00).

INSTALLATION

Install ventilation air filter (4) into unit (5).

Install ventilation guard (3), for lockwashers (2), and four screws (1).

0022-00-1