howo 4×2 tipper truck operating proceduresedit

1. Don’t suddenly push the lifting handle to the “down position” in the middle of full-load lifting.
   If this operation error occurs, the car suddenly rushes down, which will bring a great impact to the frame, and even an accident may occur. Therefore, the above operations should be avoided as much as possible, and the operation must be carried out carefully if there are special circumstances.
2. Do not use heavy lifting trucks-heavy brakes for unloading.
   Due to the high inertia force of the heavy lifting vehicle (usually 5-20 times the rated lifting force), it is very easy to cause permanent deformation of the frame, open welding of the carriage and auxiliary frame, burning of the oil pump or damage to the sealing ring, damage to the hydraulic cylinder, etc. , The service life of the vehicle is reduced, and in severe cases, a rollover accident may occur. Therefore, dump trucks are generally prohibited from driving while lifting.
3. After the dump truck has finished unloading the cargo, the power take-off must be disengaged before it can be driven.
   If this operation error occurs, when the dump truck is driving, because the power take-off is in the “engaged” position, the oil lift pump will run at high speed and no load for a long time under the “small cycle” state. As a result, the oil temperature of the hydraulic oil rises quickly, which can easily cause damage to the oil pump oil seal, and even cause the oil pump to “burn out.” Accident.
4. The power take-off must not be in the “on” position when driving.
   If it is in the “on” state (the red light is on), the oil pump will continue to rotate, and the hydraulic system will have a power source. This will cause the car to automatically lift due to misoperation on the pneumatic control valve; Even if the control distribution valve is in the “down” position, oil must enter the oil pump, which will burn out the oil pump.