| 摘要 |
PROBLEM TO BE SOLVED: To provide a system for confirming operation of a hydraulic equipment by air pressure. SOLUTION: In this operation confirmation system, an oil passage 2 for a low gear, an oil passage 3 for a second gear, an oil passage 4 for a third gear and an oil passage 5 for a top gear are branched from a main oil passage 1, a clutch 2a is provided in the oil passage 2 for the low gear, a clutch 3a and a valve 3b are provided in the oil passage 3 for the second gear, a clutch 4a and a valve 4b are provided in the oil passage 4 for the third gear, and a clutch 5a and a valve 5b are provided in the oil passage 5 for the top gear. When an O-ring or a seal ring is not attached yet or is displaced under the condition where a pressurized air source 6 is connected to one end of the main oil passage 1, air is leaked from a portion therein (not attached or shifted) to reduce pressure. For example, the clutches 4a, 5a for the third and top gears are not operated (not shifted) by the air pressure, when the air is leaked in the valve 3b for the second gear. COPYRIGHT: (C)2005,JPO&NCIPI
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