TUBE AS 3941243 - Caterpillar

Illustration 1 g00281653
Air cleaner and precleaner
(1) Precleaner
(2) Air cleaner
Illustration 2 g00281655
Precleaner (typical example)
(3) Chamber
(4) Vanes
(5) Tubes
(6) Cone The air inlet system for this machine is designed for applications with extremely heavy dust. A separate precleaner (1) and air cleaner (2) is used to filter the air for each turbocharger.In order to increase the life of the air cleaner elements, a precleaner is used. The precleaner removes most of the larger particles of dust before the particles reach the elements in the air cleaner. As the air enters the upper part of tubes (5), the air must pass through vanes (4). The vanes cause the air to move in a fast, circular movement. Centrifugal force spins the heavier dust to the outer wall of the tube. The dust falls down the wall of the tube, past cone (6), and into chamber (3). The cleaner air continues through the center of cone (6) to the air cleaner chamber. The filter elements are located in the air cleaner chamber.Chamber (3) is connected with a tube to the dust ejector system in the muffler. The suction from the muffler pulls the dust from chamber (3). The suction sends the dust through the muffler and through the exhaust stack.