The replacement process of excavator hydraulic cylinder is as follows:
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In the cold winter, the maintenance of the cooling system is critical, first of all to check the cooling system from the appearance, such as: the water drain hole of the pump, the thermostat joint, the upper and lower water pipe joints, the water outlet, the water tank cover and the water tank, etc. There is no trace of leakage at the site. When everything is OK, check the freezing point of the antifreeze. In addition, check the thermostat. If the thermostat does not work properly, the engine will be in a low-temperature state for a long time. This will increase the wear of the engine and shorten the life of the engine. Winter tire rubber will also become hard, the first thing to pay attention to is the tire pressure; secondly, pay attention to the pattern of the tire.
1. Turn off the hydraulic system: Before replacing the hydraulic cylinder, it is necessary to turn off the system to avoid liquid leakage in the hydraulic system.
2. Disassembling the hydraulic cylinder: Disassembling the hydraulic cylinder requires the use of tools such as wrenches, screwdrivers, etc. Firstly, the hydraulic pipeline needs to be removed, and then the bolts of the hydraulic cylinder need to be removed to remove the hydraulic cylinder from the machine.
3. Check the hydraulic cylinder: Check if there is any damage to the hydraulic cylinder, and if there is any damage, replace it.
4. Install a new hydraulic cylinder: Install the new hydraulic cylinder onto the machine and secure the cylinder with bolts.
5. Connect hydraulic pipeline: Connect the hydraulic pipeline to the hydraulic cylinder, pay attention to the position and direction of the connection, and ensure that the connection is secure.
6. Test system: after replacing the hydraulic cylinder, it is necessary to test whether the system operates normally, check whether the hydraulic cylinder operates normally, and deal with any problem in time.
7. Cleaning work: Clean the liquid and debris in the hydraulic system to ensure that the system is clean and avoid any impact on the system.
Maintenance of winter car cooling system is key
In winter, the atomization conditions of gasoline are poor, and it is generally not easy to start. It is also impossible to immediately switch to normal operation after startup. Therefore, during winter maintenance, it is necessary to clean and clear the oil passages and air passages, and check the working conditions of the throttle valve, choke valve, acceleration pump, and vacuum pump, and should be adjusted to the best condition. The circuit is mainly to check the platinum gap of the distributor and the electrode gap of the spark plug. The distributor platinum contacts should be clean and free from ablation, the contact surface should be above 70%, and the gap should be between 0.3 and 0.45 mm.