Air Cleaner Clogged.

TM 5-3835-222-BD

e. Reinstall blower drive shaft.

Record the BDAR action taken. When the mission is completed, as soon as practicable, repair

the equipment using standard maintenance procedures.

4-10. Air Cleaner Clogged. The air cleaner is essential for keeping dirt and dust from getting into

the engine. Under heavy dust conditions it can become clogged and restrict the air flow. Lack of air

will result in incomplete fuel combustion resulting in reduced power and excessive exhaust smoke.

Dirt should be blown out of the filter with compressed air directed from the inside of the filter element.

The filter element should not be hit to dislodge dirt as this can deform the sealing element and let

dirt into the engine causing internal damage.

Personnel/Time Required:

1 soldier - 15 minutes

Procedural Steps:

a. Remove air cleaner elements.

b. Clean filters using one of the following possibilities:

(1)

Dismount a blower motor (such as dust exhausters), connect to power source with long leads,

and blow dirt from air cleaner.

(2)

Disconnect exhaust holes from all but one blower. Connect hoses together using tape to gain

sufficient length to reach outside. Start engine and blower, blow dirt deposits from filters.

(3)

Use air from a disabled wheeled vehicle's tires. Remove valve stem and connect rubber

hose to valve and proceed to blow out filters.

(4)

Use brake air tank from wheeled vehicle by connecting rubber hose or place filter directly

under air flow from valve.

Other Options:

Use vacuum cleaner.

Gently tap filter against hard surface.

Record the BDAR action taken. When the mission is completed, as soon as practicable, repair the

equipment using standard maintenance procedures.

4-11. Air Cleaner Damaged/Leaking. The air cleaner must filter all incoming air for the engine.

Damage or leaks that cause the air cleaner to be ineffective must be repaired. Any leaks in the filter

housing or duct work can be taped over or covered by a rag that will filter any air coming through the

leak. Sealing the leak is preferred. Only as a last resort should the air cleaner bypassed or

eliminated. Damage will occur as the engine ingests the dirt and dust in unfiltered air. If the only

option is to eliminate the air filter this procedure will allow a minimum amount of air filteration.

Limitations:

Possible degraded output.

4-4