AIR COMPRESSOR GP 3602196 - Caterpillar

Illustration 1 g01263773
Components of the lubrication relief valve (1) Outlet passage to the sump (2) Spring (3) Valve spool (4) Outlet passage of the lubrication oil for the front of the transmission (5) Inlet passage from the power train oil cooler (6) Outlet passage of the lubrication oil for the rear of the transmission (7) Valve bodyThe lubrication relief valve is fastened to the front of the transmission case. The lubrication relief valve limits the oil pressure of the oil that is used to lubricate the transmission. The lubrication relief valve maintains the pressure of the lubrication oil of the transmission at approximately 140 kPa (20 psi).Oil from the power train oil cooler flows into valve body (7) at inlet passage (5). The oil is directed through outlet passage (4) and outlet passage (6). The oil from outlet passage (4) is used to lubricate the components at the front of the transmission. The oil from outlet passage (6) is used to lubricate the components at the rear of the transmission. Refer to Systems Operation, "Trasmission Lubrication" for more information about the lubrication of the transmission. When the oil pressure in inlet passage (5) exceeds the force of spring (2) valve spool (3) opens. The excess oil flow passes through the orifices in valve spool (3) and the oil flows through outlet passage (1) and returns to the sump.