What is the reason that the oil tank in the loader is too high?
(5) the machine is in normal load condition. (6) measured the work pressure of hydraulic pump and compared with the standard value, if the working pressure is too low, can be removed and a hydraulic pump overhaul. If the hydraulic pump wear or damage, the other should take a pump back. (7) measured variable outlet pressure converter And the transmission oil pressure and compared with the standard value. If the torque converter outlet pressure is too high, can be adjusted to the normal value. If the torque converter outlet pressure is too low and the pump pressure and the converter inlet oil pressure is normal, you should remove the converter will replace the damaged parts, such as gearbox oil pressure too; low converter inlet oil pressure is normal, detachable torque converter and gearbox and the disintegration of the damaged parts will be replaced. Gongyi City Huatong machinery factory contract and keeping promises, the quality of three bags.
Transmission oil is too small; transmission oil cooler oil plug; transmission hydraulic pump oil filter clogging; heat dissipation water tank; machine serious overload; transmission hydraulic pump serious wear or damage; system serious leakage, converter inlet ratio control valve work is not normal; the gearbox clutch slip will the cause of high transmission oil temperature, to introduce you to a few points below Huatong repair and maintenance method! (1) through the gearbox dipstick check the oil level, if the level is too low, the oil should be filled. (2) the transmission oil cooler and oil pipeline removed, check back after cleaning. (3) the oil filter and remove the magnet filter, check back after cleaning. (4) heat capacity the water tank is poor, sometimes causing the engine temperature; in addition, engine operating temperature is too high will cause the tank cooling capacity is insufficient. Therefore, they can check the fan belt is working properly, and then check whether the tank is dirty, when necessary, be clean; and then eliminate the cause engine heat.
The reason that the oil temperature of converter is too high is caused by the following aspects:1, the transmission oil level is too high or too lowCheck the oil quantity of the transmission oil pan and adjust the drive oil to the required position.The correct method of operation is:Park the machine on a horizontal floor, shift the handle in neutral and lock it. Loosen the choke and see if the oil is leaking. If the outflow of oil is too much, should be part of the oil release; if there is no oil flow, then the oil level is too low, should be filled with hydraulic transmission oil to the oil flow.2, variable speed pump damage, oil suction pipe impededThe function of the variable speed pump is to control the high pressure oil produced by the torque converter, and the high-pressure oil is distributed to the 2 shaft assembly through the variable speed distribution valve to realize the advance and retrogression of the forklift. The transmission pump damage will cause the gear supply to be impeded.With the increase of the loader's use time, the wear will be increased, the transmission pump will be discharged, and the transmission pressure and mechanical efficiency can not meet the requirements. Thus causing oil absorption pipeline oil supply is not smooth, the oil can not lubricate all parts of the movement, increased friction, but also cause overheating of the system. It should be noted that the transmission pump suction pipe leakage or obstruction phenomenon, will also cause insufficient flow, resulting in excessive oil temperature.3, hydraulic transmission oil metamorphismThe hydraulic transmission oil in the transmission is deteriorated, and the lubrication effect will not be reached. It will cause excessive wear and tear of the system and cause high temperature of the parts in the generator. It is recommended that the loader change the hydraulic transmission oil every 1500 hours.
