Pressure-type fuel tanks should always pay attention to the pressure of the fuel tank during work, and the pressure must be kept within the range specified in the accompanying "Instruction Manual". If the pressure is too low, the oil pump will easily be damaged due to insufficient oil suction. If the pressure is too high, the hydraulic system will leak oil and easily cause the low-pressure oil circuit to burst. For the equipment after maintenance and oil change, after exhausting the air in the system, check the oil level according to the "Instruction Manual" provided with the machine, stop the machine in a flat place, and recheck the oil level after the engine is turned off for 15 minutes, if necessary Be supplemented.
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