
| The oil filter removes foreign matter (metal particles, iron filings) from the hydraulic oil. The oil filter protects the various devices in the hydraulic system from contamination, to which they are extremely susuceptible. There are two types: those installed in the tank, and those installed in the hydraulic circuit. |
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| 1 Suction Filters | |
These Filters remove contaminants on the pump intake side. |
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| 2 Line Filters | |
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These are used in the primary pressure circuit. Unlike suction filters, there filters mostly are extreamly fine-mesh filter elements(5-20 microns). These filters are always inserted in the brake circuit, clutch circuit, and automatic cutout circuit. |
| 3 Return Filters | |
| These filter remove contaminants at the return side of the oil tank. Some are installed inside the tank, while others are installed in the return line. |
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