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拖拉机、农用车的电喇叭常被忽视,发出的声调难听而污染环境等故障。应当进行如下的维护。 1 常见的故障与排除 (1)声音沙哑。①喇叭支架安装松动,或励磁线圈松动,应分别加以紧固。②振膜有破裂,应更换新振膜。 (2)喇叭不响也不耗电流。①单音喇叭按钮或搭铁接触不良;接线松脱;触点不能闭合。排除方法是重新接线,或调整触点位置。②双音喇叭,继电器工作不良。用导线连接喇叭线和电池线,若发音正常即为继电器损坏,应更换。或修复触点。若仍不正常,应重新接线
Tractors, agricultural vehicles, electric horn is often overlooked, the tone of the audible and pollute the environment and other failures. The following maintenance should be carried out. A common fault and exclusion (1) hoarseness. ① Speaker bracket loose, or excitation coil loose, respectively, to be fastened. ② diaphragm rupture, new diaphragm should be replaced. (2) the speaker does not ring nor consume current. ① tone horn button or ground contact bad; loose wiring; contacts can not be closed. Remedy is to re-wiring, or adjust the contact location. ② dual tone speakers, relays work bad. Use the wire to connect the speaker cable and the battery cable. If the sound is normal, the relay is damaged and should be replaced. Or repair contacts. If still not normal, should be re-wiring