Leading to several reasons excavator computer board burned! The owner often meet many excavator wheel excavator shook his head bowed head, said excavator computer board and burned a used wheel excavator, instrument and will not bright. In fact, encounter this problem, most of them are man-made fault, usually excavator computer boards and instruments are in a few thousand dollars to the million or more, it burns the inevitable heartache, so usually excavator use, note the following aspect, it can reduce the chance of burn excavator electrical parts and cause damage. First, the battery cable pile head is bad, the contact surface oxidation, the probability of damage PC board CPU and instrumentation greatly enhance wheeled mining machinery, electrical schematics with the same household use, if the fuse box or switch contact is bad bad, Lamp always bright and dark it is easy to change the bulb burned. Electrical system excavator with household appliances on the same token, it usually must pay attention to the battery pile head contact is secure. Second, the battery cable is reversed, it is a very serious mistake, damage rate greatly, ranging from seizure wires, while burnout computer board instrument power circuit and CPU, the diode string some digging machine lines, power supply positive and negative polarity, then the basic these diodes will be burned, the fuse is certainly not immune. Third, the throttle motor throttle motor failure or abnormal operation, digging machines used are DC motors and stepper motors, motor overheating if a short circuit is extremely easy to put the computer board burned throttle control circuit, it is inevitable failure, usually pay more attention Let excavator throttle motor assembly to keep clean and clean, it will reduce the probability of failure; the driving power when digging machine digging machine motor throttle pull rod is not moving, if we seek to move the throttle lever force, most likely it would excavator computer board burned out. Tai Anjia and excavators Heavy Machinery Co., Ltd. for air conditioning is not cooling country? Ensure the normal operation of the excavator air conditioning cooling device each time before driving please check the following essentials. 1. If the compressor is dirty condenser cooling effect is reduced if there is dirty, wash with water and so on. Note: Do not use high-pressure water cleaning condenser. Condenser mounted in front of the radiator are particularly vulnerable to gather dirt wheeled excavators, please wash with water. 2, V-belt tension check if the V-belt tension relaxation, the V-belt life because the belt sliding, rocking significantly diminished, hand pressure way to detect whether the V-belt slack. 3, pipe connection parts Please check attached to the case confirmed that oil penetration of the connecting portion of the cooling device, dirt and dust by visual way. 4, after a very long time without the use of reused · Refer to "check the cooling means" to conduct a comprehensive inspection of all. ? When starting the cooling device, please do not dramatically increase the speed of the compressor. Note that in order to extend the life of the cooling system and maintain good performance, inspection is recommended to start using when prevention preparedness check. 5, off-season (not often) when operating · Whether summer, winter and all please install the cooling device components, add refrigerant. Note: Regardless of summer and winter, are well install the compressor drive belt. 6, will not be used ? Make every 2 to 3 weeks to run 1 to 2 times the cooling device. Compressor seals to prevent gas leakage site effect. In addition, the oil can be prevented from leaking components help to maintain the performance and life of the compressor.泰安嘉 and Heavy Machinery Co., Ltd. Wheel Excavators much money, Kerry and Heavy Industries (online consultation), Hengshui wheeled excavators offered by 泰安嘉 and Heavy Machinery Co., Ltd .. Wheeled Excavators much money, Kerry and Heavy Industries (online consultation), Hengshui wheel excavator is Taian Jia and Heavy Machinery Co., Ltd. (www.tajhzg.com/) this year introduced a new upgrade, the above picture is for reference only, please dial this Tel pages or pictures on obtain the latest information, contact: punishment manager.