| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a front loader capable of surely moving a hydraulic cylinder forward and backward and moving a lift arm up and down according to the operation of an operator even when an engine speed is low, an outside air temperature is low and a drive voltage drops, or the oil temperature of a working oil is low. SOLUTION: This front loader comprises a lift arm rotating angle detection means for detecting the rotating angle of a lift arm. A controller is controlled to increase a duty ratio for driving a proportional control valve until the lift arm rotating angle detection means detects that the lift arm is rotated.</p> |
