TOPIC 7. AIR CLEANER (PRT)

TM 10-3930-644-14 & P

A. DESCRIPTION

It may be necessary to inspect the element mare often in

an atmosphere heavily laden with dust, chaff and lint.

The air cleaner is mounted on the left side of the engine

and is connected by hoses to the carburetor air intake

CAUTION

and the crankcase. It prevents dust, chaff or other

Never remove the air cleaner while

foreign matter, the chief causes of engine wear, from

engine is running, and do not run the

entering the manifold and engine (Figure 13).

engine unless air cleaner is in place.

The air enters the cleaner and passes through a

C. REMOVAL

replaceable type, dry filter element. The element is

constructed of folded paper and a fine wire mesh screen

1. Loosen hose clamps and remove wing nut and

bound at the edges with plastic. This construction filters

rubber washer.

and removes the fine dust particles from the intake air

stream. The clean and purified air is then drawn through

2. Slide cleaner assembly down far enough to

the center tube of the element and into the carburetor

remove cover.

and intake manifold. For continued efficient engine

operation, the air cleaner must be properly serviced.

D. DISASSEMBLY AND INSPECTION

1. With filter assembly free of securing cover,

remove filter element from base of cleaner.

2. Clean inside and outside of cover and base

assembly with a suitable solvent.

3. Shake the dust and lint from the filter element.

4. If element is badly clogged with dirt and lint,

replace with a new element.

5. Check tie cover exterior for cracks and hose for

deterioration which would allow unfiltered air to

enter the system.

6. Repair or replace any unacceptable component.

E. INSTALLATION

Figure 13. Air Cleaner Assembly

1. Install filter element in base assembly.

2. Replace cover and secure wing nut, rubber

B. INSPECTION

washer and hose clamps.

Inspect the filter element at intervals frequent enough to

3. All connections must be air tight.

ensure having a clean element.

NOTE

For SRT model air cleaner service, see page 2-18a.

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