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| Illustration 1 | g06232094 |
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Location of the oil filter for the steering and braking system | |
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| Illustration 2 | g01445890 |
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Oil filter for the steering and brake system (1) Filter bypass switch (2) Filter housing (3) Oil inlet passage (4) Oil outlet passage (5) Filter element | |
Note: The steering system and the brake system use the same hydraulic oil filter.
Pressure oil from the oil pump flows into filter housing (2) through oil inlet passage (3). During normal operation, the oil flows through filter element (5) to oil outlet passage (4). The oil then flows through oil outlet passage (4) to the cooling system. The filter element stops any debris that is in the oil.
Correct maintenance recommendations must be followed in order to ensure that the filter does not become plugged with debris. If the filter is plugged, the flow of filtered oil to the system stops. However, unfiltered oil will flow past the bypass valve which is located inside the filter housing (2). This oil will then flow to the hydraulic tank. When the oil does not flow through the filter element, the debris in the oil could damage the other components in the hydraulic system.
Filter bypass switch (1) is monitored by the implement ECM. When the filter element is plugged, oil pressure in filter housing (2) increases. This causes filter bypass switch (1) to move to the OPEN position.
The implement ECM will activate a Warning Category 2 event when the filter has been plugged for more than 30 seconds. This event will be displayed on the Advisor display and logged in the Vital Information Management System (VIMS). A Warning Category 2 indicates that the filter has been plugged for more than 30 seconds. The operator needs to notify the shop.
Note: The oil will also bypass the filter element during cold start-up conditions when the oil is below
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| Illustration 3 | g00341532 |
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| Illustration 4 | g02605317 |
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Left side of compartment (6) Case drain filter for the steering and brake pumps | |
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| Illustration 5 | g01445913 |
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(7) Filter bypass switch
(8) Filter housing (9) Oil outlet passage (10) Filter element | |
The case drain filters remove any debris that is in the hydraulic oil. The case drain filters also prevent contamination between the various systems. Contaminated oil is prevented from returning to the hydraulic tank.
During normal operation, the oil flows through filter (10) to oil outlet passage (9).
Correct maintenance recommendations must be followed in order to ensure that the filter does not become plugged with debris. If the filter is plugged, the flow of filtered oil to the system stops. However, unfiltered oil will flow past the bypass valve which is located inside filter housing (8). This oil will then flow to the hydraulic tank. When the oil does not flow through the filter element, the debris in the oil could damage the other components in the hydraulic system.
The filter bypass switch is monitored by implement ECM. When the filter element is plugged, oil pressure in filter housing (8) increases. This causes filter bypass switch (7) to move to the OPEN position.
The implement ECM will activate a Warning Category 2 event when the filter has been plugged for more than 30 seconds. This event will be displayed on the Advisor display and logged in the Vital Information Management System (VIMS). A Warning Category 2 indicates that the filter has been plugged for more than 30 seconds. The operator needs to notify the shop.
Note: The oil will also bypass the filter element during cold start-up conditions when the oil is below