In the whole construction project, the prevention work of mixer truck is not only the damage of structural accessories, but also pay more attention to the state of hydraulic oil circuit. In view of the black oil phenomenon in the construction project, we summarize the following effective measures according to the actual operation experience:
Replace the dust seal in time, and it is forbidden to often hit the mixer. The black oil in the hydraulic system of the mixer truck is caused not only by dust, but also by the non-standard filling of butter. When filling butter, lift the mixer truck and press the steel drill into the piston. Each filling only needs to be filled within half the range of the standard grease gun.
If the steel rod is not pressed tightly when filling grease, the filled grease will be at the upper limit of the steel rod groove. When the steel rod is working, the grease will jump directly to the position of the main oil seal. With the reciprocating motion of the piston, the grease will be brought into the middle cylinder, and then with the hydraulic oil in the middle cylinder mixed into the hydraulic system of the mixer truck, resulting in abnormal conditions such as deterioration and blackening of the hydraulic oil.
Install oil return filter device to remove external dust. When replacing hydraulic accessories such as oil pipe, steel pipe and oil return filter element, it is necessary to clean the dust or sundries at the interface before loosening and replacing.
In addition, pay more attention to the maintenance of other aspects of the mixer truck, such as:
Before starting the concrete mixer, it is necessary to check whether the quantity of each component is normal and reliable, whether the bolt connection is fastened, whether the operation is flexible, etc.
The lubrication points of all parts shall be carried out according to the schematic requirements, and the refueling place must be kept clean.
The pipelines of hydraulic and pneumatic systems shall be sealed firmly, and whether there is wear, oil leakage, air leakage and other phenomena shall be checked and handled in time.
Check the hydraulic pump. Hydraulic motor, deceleration bend and other components must be maintained in accordance with the requirements of the product manual.
Regularly check the wear of mixing blades and repair them in time.
Maintenance of reducer: the reducer shall be maintained according to different service life.
Maintenance of radiator: under normal circumstances, the filter element of the radiator is replaced within a fixed cycle. The filter element is replaced every 3 months for new vehicles, and then every 6 months. The precision of the filter element is the same as that of the original filter element. Check whether the radiator fan operates every day, and clean the surface of the radiator blade with an air gun every week to keep the radiator working normally.
Maintenance of water supply system: the water supply mode of concrete mixer truck is pneumatic water supply, and the air is taken from the chassis air reservoir. Therefore, the tightness of its air circuit should be checked frequently to keep the gold chassis air circuit from being affected.
Maintenance of mixing drum: after each work, there must be coarse stones in the mixing drum and washed with clean water. Operate according to the discharging method to drain the accumulated water in the drum. At the same time, wash the cement Residue around the surface and base of the mixing drum. Correct treatment and maintenance can prolong the service life of the mixing drum.
This is the content of effective measures to deal with the phenomenon of black oil in the mixer. If you have relevant needs or other ideas, please pay attention to our website www.zkzdsljbc COM, and then contact information!