Pilot Filter
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| Illustration 1 | g02392057 |
Pilot Filter (1) Filter bypass switch. (2) Filter element. | |
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| Illustration 2 | g01153502 |
Pilot Filter (1) Filter bypass switch (2) Filter element (3) Filter housing (4) Oil inlet passage (5) Oil outlet passage | |
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
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| Illustration 3 | g01147771 |
View of the Filter for the Cooling Circuit (6) Filter. | |
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| Illustration 4 | g01147793 |
View of the Pressure Switch (6) Filter. (7) Pressure switch. | |
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| 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. | |
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| 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
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| Illustration 7 | g02392161 |
Case Drain Filter (19B) Case drain filter for the left implement pump (19C) Case drain filter for the rear tandem pump (19D) Case drain filter for the front tandem pump (19E) Case drain filter for the right implement pump | |
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| Illustration 8 | g01153500 |
Case Drain Filter (20) Filter bypass switch (21) Filter housing (22) Oil inlet passage (23) Oil outlet passage (24) Filter element | |
The case drain filter filters any debris that is in the hydraulic oil. The filters prevent debris from the implement pumps 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.
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.
Screens for the Implement Pumps
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| Illustration 9 | g02392436 |
View of the Screens for the Implement Pumps (25) Screens. | |
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| Illustration 10 | g02508278 |
Screen for the Implement Pumps (26) Oil outlet passage. (27) Oil inlet passage. (28) Passage. (29) Screen housing. (30) Screen assembly. (31) Drain Plug. | |
The screens for the implement pumps filter any debris that is in the hydraulic oil. The screens prevent debris from the implement pumps from contaminating the oil that is in the hydraulic system.
Correct maintenance recommendations must be followed in order to ensure that the screen assembly does not become plugged with debris.