| 摘要 |
PROBLEM TO BE SOLVED: To provide an oil filter condition display device having high visibility at a low cost. SOLUTION: A hydraulic indicator 20 is arranged inside an operator's cab 16 of a construction machine, and an oil filter 18 inside an engine compartment 13 and the hydraulic indicator inside the operator's cab are connected to each other through a hydraulic hose 21. The hydraulic indicator is arranged at a position not preventing a sight of an operator and easy to be seen. The operator can always confirm the blinding condition of the oil filter during the rotation of the engine to perform an appropriate maintenance. In comparison with the electric structure such as a monitor device for displaying pressure detection values of a pressure sensor, the cost is low and visibility is excellent. COPYRIGHT: (C)2004,JPO&NCIPI
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