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ji you ya li biao de jian xiu
Author(s): 
Pages: 69
Year: Issue:  6
Journal: Farm Machinery Using & Maintenance

Abstract: 机油压力表是指示发动机润滑系统油压的仪表,它与装在发动机润滑系统主油道上的传感器配套使用.常用机油压力表多为电热式机油压力表. 一、机油压力表常见故障排除 机油压力表常见故障有指示表指针不动、示值不准、指针摆动无规律等. 1.机油压力表指针停在"0"位不动 机油压力表指针停在"0"位不动,是因为指示表上双金属片的加热线圈被烧断,或电源开关闭合失灵,或电路接线松脱等电路故障所致.可在断电情况下用万用表电阻挡测量电路各段的通断情况,若加热线圈断路应更换表头,若传感器内部电路断路,须更换传感器.当电路故障排除后,接通电源指针仍无偏转,则可能是发动机润滑系统有故障,致使油路堵塞,传感器膜片感受不到油压.
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