How much hydraulic oil needs to be added to a 1-ton excavator depends on the specific model and specification of the excavator. Different excavators require different amounts of hydraulic oil. Generally speaking, the user manual or instructions of the excavator will list the required hydraulic oil volume and specifications in detail. If you don't have a manual or instructions, you can find a label on your excavator's hydraulic tank that will show the required hydraulic fluid volume and specifications.
In addition, it should be noted that certain steps and precautions should be followed when adding hydraulic oil. First, proper containers and tools should be used for refueling. Secondly, before adding hydraulic oil, the hydraulic oil tank and filter element should be cleaned to ensure the quality and purity of the hydraulic oil. Finally, after adding hydraulic oil, you should check that the hydraulic oil level is correct and check for any leaks or problems.
Normally, the added pressure should be about 1.4-1.6MPa (approximately equal to 14-16kg). The new and repaired hydraulic breaker must be refilled with nitrogen when it is used, and its pressure is 2.5, ± 0.5MPa. The more nitrogen is added, the greater the pressure in the accumulator, and the optimal working pressure of the accumulator will be slightly different according to the specifications and models of the breaker and the external climate conditions.
350 excavator hydraulic oil plus 300 liters. Adding too much hydraulic oil to the excavator will increase the resistance of the hydraulic system and reduce the working space. If too much hydraulic oil is added, the breather filter (air release valve) on the hydraulic oil tank may be damaged. Too much hydraulic oil will cause excessive hydraulic oil pressure, which will cause damage to the O-ring of the hydraulic oil pipe and the seals of the hydraulic components. Adding more hydraulic oil will cause the temperature of the excavator to rise, resulting in high temperature of the hydraulic system.
In short, in order to ensure the normal operation of the excavator and prolong the life of the excavator, it is very important to add the right amount of hydraulic oil correctly. If you are not sure how much hydraulic oil should be added, please refer to the user manual of the excavator or contact a professional technician for consultation.