Importance

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Abstract

The invention relates to a device which aims to improve safety and reliability in a remote engine starting and stopping device for construction machines. A starting signal for starting an engine is transmitted to a construction machine from a transmission which is separate from the construction machine. The starting signal is received by a receiver on the construction machine. When the starting signal is received by the receiver, an engine starting device is driven for starting of an engine on condition that an operating lever for a working machine being on a neutral position is detected by a neutral position detection. As a result, a danger of the working machine coming into motion in an unmanned state is avoided for improvement of safety. Further, if the engine having worked is detected by a working condition detection after an engine starting device is driven by the engine start, the engine is made to work until a predetermined period of time elapses after a point of time when the detection is effected. As a result, warm-up is performed for a preset time after a point of time when the engine is actually made to work, so that reliability in unmanned operation is improved.

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First Claim