The upper electrical system of the mixer consists of three parts: the electric control device of the water supply system (electric water pump control part, pneumatic water supply system electric control alarm device), the cooling fan control part and the rear clearance lamp, side marker lamp and work lamp.
1）供水係統電控裝置
1) Electric control device of water supply system
①電動水泵控製部分 電動水泵操作開關位於車後部右側開關盒上，在電動水泵工作前應先確保發動機運轉、水箱有水、水管閥門打開。水箱水用完時應關停水泵，嚴禁無水空轉電動水泵，以免損壞電動水泵。電 動水泵工作時開關盒內蜂鳴器鳴叫，起警示作業。
① The electric water pump operation switch of the electric water pump control part is located on the right switch box at the rear of the vehicle. Before the electric water pump works, ensure that the engine runs, the water tank has water and the water pipe valve is opened. When the water tank is used up, the water pump shall be shut down. It is strictly prohibited to idle the electric water pump without water to avoid damaging the electric water pump. When the electric water pump is working, the buzzer in the switch box will sound for warning operation.
②氣壓式供水係統電控報警裝置 打開駕駛室內原水泵開關，氣壓式供水係統蜂鳴控製器繼電器得電，蜂鳴器鳴叫，同時電磁氣閥接通，氣源從儲氣筒經電磁閥進入噴水壓力水罐，打開噴水閥進行噴水洗車作業，噴水洗車完畢後蜂鳴器仍在鳴叫，提醒操作者關閉水泵開關。
② The electric control alarm device of the pneumatic water supply system turns on the raw water pump switch in the cab, the buzzer of the pneumatic water supply system buzzes, the relay of the controller is powered on, the buzzer buzzes, and the solenoid valve is connected. The air source enters the water spray pressure water tank from the air reservoir through the solenoid valve, and the water spray valve is opened for water spray car washing. After water spray car washing, the buzzer still buzzes, Remind the operator to turn off the water pump switch.
2）冷卻風扇控製部分
2) Cooling fan control section
冷卻風扇的啟停由溫控開關自動控製，溫度高於65℃時風扇啟動，低於60℃時風扇停止。溫控開關位於冷卻器上，繼電器與保險片在駕駛室內配電盒內。
The start and stop of the cooling fan is automatically controlled by the temperature control switch. The fan starts when the temperature is higher than 65 ℃ and stops when the temperature is lower than 60 ℃. The temperature control switch is located on the cooler, and the relay and fuse are in the power distribution box in the cab.
3）後示廓燈、側標誌燈、工作燈部分 後示廓燈、側標誌燈用於夜間表示車後部輪廓大小、側麵輪廓，與後牌照燈同時點亮、熄滅。工作燈用於夜間進料與卸料照明，開關在駕駛室內。
3) Rear clearance lamp, side marker lamp, work lamp part rear clearance lamp and side marker lamp are used to indicate the size and side contour of the rear of the vehicle at night, and turn on and off at the same time as the rear license plate lamp. The working light is used for night feeding and unloading lighting, and the switch is in the cab.
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