When the volumetric power drops to 72%, the power of the hydraulic pump system depends on the volumetric power of the hydraulic pump. It is necessary to carry out routine repairs, replace bearings and aging seals, and even correct gaps or replacement parts that exceed friction partners to restore performance. Hydraulic pump repair method:
There are also hydraulic pump oil supplemented with liquid centrifugal oil that provides pressure oil to the hydraulic pump inlet port. The self-absorption capacity of the pressure pump is very strong. 1. The oil supply method of the hydraulic pump. The straight-axis swash plate type pressure is divided into two types: the self-absorption type of the sub-pump plunger force supply type. The pressure-supply liquid oil for the large pump is selected with a gas pressure tank. No external oil supply is required. If it is found that the speed of the hydraulic cylinder drops or is stuffy, it is time to repair the hydraulic pump, check whether the scratches on the edge of the impeller are scratched, and whether the gap of the internal gear pump is too large. Regarding self-priming oil, the oil in the pump plug-type pressure tank must not be lower than the lower limit of the oil standard enough to maintain the required amount of hydraulic oil. The more clean the hydraulic oil is, the longer the service life is.
If there is play in the bearing, 2. The heaviest shaft of the plunger pump for the bearing of the hydraulic pump is the bearing of the part. It is impossible to maintain the normal clearance of the three pairs of friction pairs in the pump pressure fluid in the department, and the thickness of each broken hydrostatic support oil film will also be rubbed together, reducing the life of the bearing pump used by the plunger. According to the data provided by the hydraulic pump manufacturer, the bearing is even, and the service life is 10000h. The shaft can be unloaded and unloaded. Without professional testing equipment, it is impossible to detect the bearing of the gap. Only visual inspection can be used. If the roller table is changed or the mark is scratched, it must be replaced. It should be more appropriate, when changing the bearing, pay attention to the English alphabet and model of the original bearing. The large bearing bearing plug of the column selects a large load capacity bearing. It is best to buy the original standard and the product of the factory. Personnel with experience in bearing consultation should look up the table and exchange it, the purpose is to adhere to the equally accurate bearing level and load capacity.
3. Three pairs of corrections for inspection and inspection
Can choose to replace the copper sleeve method to modify. The diameter of the first stopper rod of the column group is trimmed to a uniform size, and the copper fitting of the 1 cylinder is installed. Then use a light of more than 1000 # to throw paper sand.
2 The sintering cylinder is a square combination body and copper sleeve.
3 working face table "using mining technology
4 cylinder bores The material of the copper sleeve of the materialless cylinder is mostly made of nodular cast iron.
