Fault detector of excavator

Abstract

The invention discloses a fault detector of an excavator. The fault detector of the excavator comprises a detection wiring harness, an electric device drive module, a meter control panel and a power line. The electric device drive module is used for driving to-be-detected electric devices in an air conditioner system, an electronic throttle control system and a flameout system for simulated working state demonstration. The meter control panel comprises an electric device working state demonstration control button, an electric device working state indicator lamp and a display module, wherein the electric device working state demonstration control button is used for controlling the electric device drive module to achieve simulation demonstration of the working state of the to-be-detected electric devices; the electric device working state indicator lamp is used for displaying the working state of the to-be-detected electric devices; the display module is used for displaying related data information and / or related data information change situations of the to-be-detected electric devices in the air conditioner system, the electronic throttle control system and the flameout system under the simulated working state. The fault detector of the excavator can rapidly and accurately detect electric devices which cannot be easily detected or are large in detection difficulty in the maintenance process of the excavator and remove faults, and operation is visual, easy and convenient.

Description

technical field [0001] The invention relates to an excavator fault detector, which is suitable for rapid detection and elimination of electrical systems such as an electronic throttle control system, an air-conditioning system, and a flameout system of the excavator. Background technique [0002] In the field of excavator fault detection technology, common fault detectors include Hitachi excavator computer fault detector, Carter detector-ET, imported Kobelco-8 detector and so on. [0003] Hitachi excavator computer failure detector, also known as computer small doctor, is suitable for various models of Hitachi excavators, and can detect the pressure of the hydraulic pump of the excavator, the speed of the engine, and the quality of various sensors. The Hitachi excavator instrument displays only a few limited data for the operator, such as: water temperature, water level, fuel level, engine oil level, engine oil pressure, air filter, etc. In the process of repairing, it is i...

AI Technical Summary

Problems solved by technology

[0025] The traditional detection method is to take the fuel level sensor out of the fuel tank, use a multimeter to measure the two signal lines of the connector terminal of the fuel level sensor, and move the fuel float slowly from the low end to the top, and the multimeter shows that the data will gradually change from 83Ω to the top. Reduced to 3Ω, this detection method requires the detection personnel to use the multimeter proficiently, and it is difficult for a detection personnel to achieve independent operation

[0026] In addition to the traditional maintenance methods mentioned above, some maintenance personnel will also use the electrical component replacement method, that is, select new electrical components to replace suspected faulty electrical components. Electrical components were also burned, causing huge losses

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