Hitachi Construction Machinery Co., Ltd.

Yoshiyuki Umeno

Hiroyuki Adachi

Genroku Sugiyama

Hiroshi Watanabe

Koichi Shibata

Hideo Karasawa

Hiroshi Ogura

Osamu Tomikawa

Shuichi Miura

Kiyoshi Ono

Yasushi Ochiai

A working machine failure diagnosis method for performing a failure diagnosis by transmitting and receiving signals through communication devices provided at a working machine and at an information management center, according to the present invention, includes: a first step in which a first signal related to a failure of the working machine is generated at the working machine and the first signal is transmitted to the information management center from the working machine via the communication devices; a second step in which, after the first signal is transmitted, the information management center generates a second signal for identifying a location of the failure based upon the first signal and the second signal is then transmitted from the information management center to the working machine via the communication devices; and a third step in which failure information corresponding to the first signal and the second signal is provided to an operator.

Working machine, trouble diagnosis system of working machine, and maintenance system of working machine

Growing community of inventors

Kuwana, Japan

Yoshiyuki Umeno