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东风型内燃机车上只装置一台燃料泵电机组,靠它供给柴油机燃油,一旦发生故障停转,常常造成“机破”。我段因燃料泵电机故障发生过几次机破。一般说来,在运行途中燃料泵电机常发生以下几种故障:(1)燃料泵卡死,电机带不动烧保险;(2)电枢匝间短路,严重者烧毁电机;(3)炭刷卡死及电机换向器接触不良;(4)断线。属于前两种故障,乘务员途中处理比较困难。属于后两种情况,乘务员途中可采取应急处理措施,维持运用。如果是炭刷卡死,会产生强烈的火花,电机换向器严重发黑。有这种现象时,只要把炭刷活动活动或把炭刷拔出,用砂布把炭刷侧面磨磨再装进去(装时要注意按原来的方向装,
Dongfeng diesel locomotive only installs a fuel pump motor unit, it supplies diesel fuel, in the event of stalling, often resulting in “machine broken.” I paragraph due to fuel pump motor failure occurred several times broken machine. In general, fuel pump motors often fail on the way of operation as follows: (1) the fuel pump is stuck and the motor is not burning; (2) short circuit between armatures and turns on the motor, and (3) carbon Card stuck and motor commutator poor contact; (4) disconnected. Belong to the first two kinds of faults, steward en route to deal with more difficult. Belong to the latter two cases, flight attendants en route to take emergency measures to maintain the use. If the carbon card stuck, will have a strong spark, the motor commutator serious black. With this phenomenon, as long as the activities of carbon brush or pull out the carbon brush, charcoal brush side grinding and then loaded into (loading time to pay attention to the original direction of loading,