Industry News

Isuzu sprinkler truck is a vehicle specially used for spraying water sources. It is usually used in environmental protection and urban management work such as road cleaning, irrigation, dust suppression, and construction site dust reduction.Common faults of Isuzu sprinkler trucks include the following:

1. Car chassis failure: including chassis wear, suspension system failure, braking system failure, etc. These faults may cause the vehicle to be unstable, have obvious bumps when encountering uneven roads, or cause the brakes to become insensitive.
2. Sprinkler system failure: including sprinkler pump failure, sprinkler pipe blockage, nozzle failure, etc. These faults may cause problems such as uneven watering, poor watering effect, or the sprinkler system not working properly.
3. Electrical system failure: including lighting failure, circuit short circuit, etc. These faults may cause the vehicle's lights to fail to work properly, affecting driving safety.
4. Hydraulic system failure: including hydraulic pump failure, hydraulic pipeline oil leakage, etc. These faults may cause the hydraulic system to fail to work and affect the realization of the sprinkler function.
5. Cooling system failure: including excessive water temperature, cooling water leakage, etc. These faults may cause the engine to overheat and affect the normal operation of the vehicle.

1. Motor part

1. No response after turning on the power. Most of them are caused by short circuits in the power plug, power leads and motor windings.
2. It is difficult to start or cannot start, and there is a "buzzing" sound. During maintenance, you can use small bamboo pieces to quickly move the fan blades in the direction of rotation. If the motor starts running quickly, it means that the starting capacitor or starting winding is damaged. You should replace the capacitor with the same capacity or repair the starting winding. If the motor is stuck, it is mostly the motor and pump head. Mechanical failure, such as bearing damage, impeller stuck, etc.

3. The motor can run, but the speed is slow, and the casing is overheated and has a burning smell. Most of them are caused by a short circuit in the motor windings. The motor should be disassembled and repaired by welding, jumper wires, isolation, rewinding and other measures depending on the damage.
4. There is loud noise and vibration during operation. Most of the time, the bearing is damaged or the bearing and the casing are not properly matched. The motor needs to be disassembled and inspected. If the bearing is damaged, it should be replaced; if the bearing is on the outer circle, the mating surface of the pump casing can be chiseled; if the bearing is on the inner circle, it can be The worn parts of the motor shaft are chiseled. If the wear is serious, repair it by first overlaying welding and then turning.

2. Sprinkler truck pump head part

1. The motor is running normally but the water output is small or no water at all. In this case, you should first check the seal of the water pump of the sprinkler truck. During the inspection, you should first unplug the power plug, block the water suction port with your hand, fill the water pump with water, hold the outlet with your mouth and blow inward hard, and observe whether the pump head is leaking. , the leakage point is where the seal is damaged. Common faulty parts include the suction port pad, water outlet pad, and impeller cover pad, which should be replaced during maintenance. If there is no water-filled phenomenon, it is likely that the impeller is damaged, the inner water barrier between the suction chamber and the water outlet chamber is corroded, the water barrier of the pump head is worn flat, the gap between the impeller and the pump casing is increased, etc. The impeller and pump casing should be replaced. . When replacing the impeller, care should be taken to completely remove the remaining copper blades in the pump to avoid damaging the new impeller again.

2. The casing is charged. Most of them are caused by water seal damage. Water penetrates into the motor through the motor shaft and deteriorates the insulation performance of the motor. It can be repaired by replacing the water seal, drying the motor, etc. It should be noted that because the water pump is in contact with water for a long time and works in the open air, it is easily affected by moisture and causes deterioration of insulation performance.