DETROIT DIESEL EXHAUST GAS ASPIRATORS y-r e&n’ \ REP&ABLE CENTRIFUGAL DUST BIN FlLTER ELEMENT AIR CLEANER 2612 Fig. 8 - Dry Type Air Cleaner into the atmosphere along with the engine exhaust gases. Approximately 90% of the total dust load is disposed of in this manner. The centrifugal air cleaner is fully effective at either high or low velocities. Fig. 10 Typical Dry Type Air Cleaner Mounting The remainder of the air in the cleaner reverses direction and spirals back along the discharge tubes again centrifugally moving the air. The filtered air then reverses direction again and enters the replace- able filter element through the center portion of the discharge tubes.
The air is filtered once more as it passes through the pleats of the impregnated paper element before leaving the outlet port of the cleaner housing. the indicator reset by pushing the plunger all the way up and then releasing it. Service The first stage centrifugal air cleaner tends to be self- cleaning due to the action of the exhaust gas aspirator. However. it should be inspected and any accumulated foreign material removed during the periodic replacement of the impregnated paper filter element. Overloading of the paper element will not cause dir? particles to by-pass the filter and enter the engine, but will result in starving the engine for air.
An air cleaner restriction indicator (Fig. 10) may be attached near the outlet side of the cleaner. As the restriction in the cleaner increases, suction created will pull the indicator plunger upward. A brightly colored card, attached to the plunger and visible through a small window in the indicator, will indicate the relative amount of air restriction in the oleaner. When the card is fully visible, the air cleaner should be cleaned and r- INLET, TUBE The filter element may be replaced as follows: 1. Disconnect the flexible aspirator hose at the dust bin of the air cleaner. 2. Loosen the wing nuts on the filter fasteners and swing the retaining bolts away from the cleaner.
PRIMARY CHAMBER I 3. Lift the cleaner away from the housing and inspect it. Clean out any accumulated foreign material. 4. Withdraw the paper filter element and discard it. 5. Install a new filter element. New sealing gaskets are provided with the element to insure a positive air seal at all times. 6. Install the cleaner and secure it in place with the fasteners. Fig. 9 - Flow of Air Through Filter Element 7. Connect the aspirator hose to the dust bin, making sure the connection is air tight. Segment