2. The spiral distributor does not work:
Sometimes the left and right spreaders do not work on the paver. The reason is generally that the oil replenishment system is faulty. The reasons for the low pressure of the charge system include: the charge pump inlet is not smooth; the charge pump relief valve pressure is low; the charge pump itself malfunctions; the hydraulic motor is seriously leaking. Generally, check the charge pump and its overflow valve.
Precautions:
In the use of the paver, the maintenance of the hydraulic system can greatly reduce the failure. Generally, the following points should be noted:
(1) Before adding the hydraulic oil to the hydraulic oil tank, it should be filled in a clean container. The hydraulic oil must be filtered by the oil filter and then added to the hydraulic oil tank; the replacement period of the hydraulic oil depends on the quality of the oil used (generally, it is replaced once every 1000h ); The replacement of hydraulic oil should be carried out at operating temperature; in order to ensure good heat dissipation of the hydraulic system, the hydraulic oil radiator should also be cleaned regularly.
(2) As the construction environment of the asphalt paver is generally harsh, the replacement cycle of the hydraulic oil filter element should also be shortened (generally 750h is appropriate). Check when replacing the new filter element. It is strictly forbidden to use deformed, contaminated or rusted ones. Filter element.
(3) When starting the engine every day, you should first idling for a period of time, and then manipulate the various actuators to work, which is beneficial to the use of hydraulic pumps.
(4) Due to long-term use of the paver, its hydraulic system parameters sometimes change. Therefore, the parameter settings of the hydraulic system should be checked regularly and adjusted in time.
