要使农用运输车上的喇叭发出的声音更加悦耳而且易于辨别,以利农用运输车的安全行驶。当喇叭的音量和音调发生变化时,应及时予以调整,具体调整方法如下: 农用运输车电喇叭的音量和工作电流随电源电压升高而增大,在调整过程中应以在额定电压时进行调整,同时在允许电压变化范围内,兼顾电压变化对喇叭工作的影响。如DL34DG/12 Make the sound from the speakers on the farm truck more pleasing and easily discernible for the safe driving of the farm truck. When the speaker’s volume and tone changes, it should be promptly adjusted, the specific adjustment method is as follows: The volume and operating current of agricultural vehicles electric horn increases with the power supply voltage, the adjustment process should be carried out at rated voltage Adjustment, while allowing the voltage range, taking into account the impact of voltage changes on the speaker. Such as DL34DG / 12