VALVE GP-CONTROL 4537464 - Caterpillar

The pilot filter filters any debris that is in the hydraulic oil. The filter prevents debris from the pilot pump from contaminating the oil that is in the hydraulic tank.Correct maintenance recommendations must be followed in order to ensure that the filter element does not become plugged with debris. If the filter element is plugged, the flow of filtered oil to the system stops. However, unfiltered oil will flow through the bypass valve.Prior to the oil bypassing the filter, the Vital Information Management System (VIMS) will trigger a warning category 2. The warning notifies the operator that the filter element is plugged.A Warning Category 2 indicates that the filter element has been plugged for longer than 30 seconds.For additional information on the VIMS, refer to Service Manual, RENR6318, "Vital Information Management System (VIMS)".Note: The oil will also bypass the filter element during cold start-up conditions when the oil is cold. However, the VIMS will not display a warning. As the oil warms up, the bypass valve will move to the CLOSED position. This action will allow the oil to flow through the filter element unless the filter element is plugged.Filter for the Implement Oil Cooler
Illustration 3 g01147771
View of the Filter for the Cooling Circuit (6) Filter.
Illustration 4 g01147793
View of the Pressure Switch (6) Filter. (7) Pressure switch.
Illustration 5 g01153539
Filter (8) Retainer. (9) Retainer spring. (10) Bypass valve. (11) Spring. (12) Filter housing. (13) Filter element. (14) Outlet passage. (15) Inlet passage. (16) Location of the differential pressure switch.
Illustration 6 g01153567
View A-A (17) Oil inlet port. (18) Oil outlet port.The filter for the cooling circuit filters any debris that is in the hydraulic oil. The filter prevents debris from contaminating the cooling circuit.Correct maintenance recommendations must be followed in order to ensure that the filter element does not become plugged with debris. If the filter element is plugged, the flow of filtered oil to the system stops. However, unfiltered oil will flow through the bypass valve. This oil will then flow to the oil cooler.If the pressure of the oil in passage (15) is 137.9 13.8 kPa (20.0 2.0 psi) greater than the pressure that is inside passage (14), differential pressure switch (7) will actuate. When the oil is bypassed, the Vital Information Management System (VIMS) will trigger a warning category 2. The warning notifies the operator that the filter element is plugged. A Warning Category 2 indicates that the filter element has been plugged longer than 30 seconds.For additional information on the VIMS, refer to Service Manual, RENR6318, "Vital Information Management System (VIMS)".Note: The oil will also bypass the filter element during cold start-up conditions when the oil is cold. However, the VIMS will not display a warning. As the oil warms up, the bypass valve will move to the CLOSED position. This action will allow the oil to flow through the filter element unless the filter element is plugged.Case Drain Filter
Illustration 7 g02392161
Case Drain Filter (19B) Case drain filter for the left implement pump (19C) Case drain filter for the