| 摘要 |
PROBLEM TO BE SOLVED: To carry out smooth control by coupling the first auxiliary control valve with a hydraulic circuit, providing a variable operator input signal by the first operator input device and coupling a controller with the first operator input device and the first auxiliary control valve. SOLUTION: An attachment circuit 124 discretely transmits an input to a microprocessor 82 through an attachment-input coupling 126 or is hard-wired to rear-mounted auxiliary input switches 84, 86 transmitting an input signal. The microprocessor 82 controls the hydraulic system in a desired shape on the basis of a received specific attachment input signal. The circuit 124 is hard- wired to the microprocessor 82 from the switches 84, 86, and coupled at positive voltage. The signal received by the microprocessor 82 displays the angle broom of an attachment mounted on the loader to the microprocessor 82. Accordingly, the microprocessor 82 can assign specific functions to various other operator control so that the angle broom is operated correctly.
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