| 摘要 |
PROBLEM TO BE SOLVED: To provide a hydraulic unit with a control function capable of continuing operation safely by effectively preventing overheating of an engine and a rise in temperature of hydraulic oil.SOLUTION: A hydraulic unit controller 17 which controls a hydraulic unit includes: temperature detection means (a water temperature sensor 18 and a water temperature switch 19) of detecting the temperature of cooling water of an engine; first warning generation means of generating a first temperature rise warning when the detected temperature of the temperature detection means rises above a preset first set temperature; and second warning generation means of generating a second temperature rise warning different from the first temperature rise warning when the detected temperature of the temperature detection means rises above a preset second set temperature higher than the first set temperature. |
