| 摘要 |
PURPOSE:To eliminate a semi-engaged clutch and to prevent a seizure of a clutch by measuring the oil pressure after a specific time passes from an engine starting, and stopping the feeding of operation oil by shutting a shut-off valve when the oil pressure is less than a prescribed value. CONSTITUTION:The oil pressure in a tube passage 7 after a specific time passes from an engine starting is measured by an oil pressure sensor 18, and the result is transmitted to a controller 17 as an electric signal. The controller 17 judges the electric signal of a limit switch 16 and the signal of the oil pressure sensor 18, and operates a shut-off valve 5 by an electric signal. When the above oil pressure is the prescribed value or higher, the shut-off valve 5 is kept as opened, and the clutch is operated normally by operating a gear shifting lever 12-1. When the above oil pressure is less than the prescribed value, the shut-off valve 5 is closed, the operation oil to the clutch is stopped, and at the same time, an alarm is given to inform a trouble. Consequently, a semi-engaged clutch condition is eliminated and a seizure of the engine can be prevented. |
