HARNESS AS-CAB 2331036 - Caterpillar

Illustration 1 g00519135
(1) Power train oil filter
(2) Inlet
(3) Oil sampling valve
(4) Bypass switch
(5) Outlet
(6) Outlet Power train oil filter (1) is fastened to the left side of the main frame rail behind the front wheel. The oil sampling valve (3) is located on power train oil filter (1).Oil from the power train charging pump section flows to power train oil filter (1) through inlet (2). Power train oil filter (1) has two filter elements.During normal operation, the oil flows through the elements. The oil flows from the elements to outlet (5) and to outlet (6). The oil that flows through outlet (5) is sent to the transmission hydraulic control. This oil is used to engage the proper clutches in the transmission. Some oil will flow from the transmission hydraulic control to the torque converter. This oil will be used as the hydraulic coupling during torque converter drive. Oil that leaves the torque converter is sent to the power train oil cooler. The oil will flow from the power train oil cooler to the transfer gears and to the transmission for lubrication. The oil that flows through outlet (6) is sent to the torque converter lockup clutch and solenoid valve. This oil is used to engage the torque converter lockup clutch. The filter elements stop any debris that is in the oil.If the filter elements become full of debris, the restriction to the flow of oil causes a pressure increase inside the filter. The pressure oil causes a bypass valve to open. Also, bypass switch (4) will be activated and an alarm will be registered in the cab.The oil then flows past the open bypass valve and to the power train system. When the oil does not flow through the filter elements, the debris in the oil will cause damage to other components in the power train system.Use correct maintenance in order to make sure that the filter elements do not become full of debris. If the filter elements are full of debris, the flow of clean oil to the power train system is stopped.