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1. Air compressor oil of different grades and grades is forbidden to be mixed.
2. The old oil must be drained when replacing. It is strictly forbidden to use supplemental or filtration and reuse. Because although the surface of the compressor oil does not change, the consumption of additives may have exceeded the limit.
3. If there is not much oil, put 1/2 new oil, run it for 15 to 60 minutes, and then fill it with new oil. If there is too much carbon in the sludge, after removing the cylinder, manually remove the sludge and carbon deposit, and then wash it with a special cleaning agent, but after cleaning, it must be dried with dry air, then cleaned with cleaning oil for 100 to 200 hours. After that, clean the cleaning oil and finally add the new oil to normal operation. Failure to do so may not only destroy the performance of the oil additive, but may also result in a safety incident.
4. When changing oil, you should also change the oil bypass filter, oil filter, oil and gas separation fine filter, strainer filter element, etc., check whether the filter, air filter, check valve, temperature control alarm, etc. are in good condition. .
5. Oil change index Compressor type Lubrication part Oil change quality specification Note viscosity, (±%) acid value, mgKOH/g residual carbon, (%) n-heptane insoluble matter (%) piston type high pressure internal use (cylinder) ― --- Oil-filled primary lubrication external (bearing) 152.01.00.5 low-pressure cylinder, bearing common 152.01.00.5 rotary rotor, bearing 150.5-0.2 speed seal, bearing 150.5-0.2
6. It is recommended that the oil change time is not a fixed value. The aging of the oil can be accelerated due to the influence of equipment, environment and mechanical impurities. In order to prevent carbon deposition and coking, it is necessary to pay attention to the color, viscosity and oiliness of the lubricating oil during use (every 300 hours), but it is not possible to judge the quality of the oil by color alone. 7. If the oil temperature is too high, you must find the reason, and you can't get rid of the protection device in order to maintain production. The general reason for the temperature is too high:
(1) The oil cooler water pipe has too much dirt or blockage, the temperature control valve of the oil cooler does not operate, and the cooler efficiency is low;
(2) failure of lubricating oil aging;
(3) The oil temperature sensor fails. If PLC control is used, it does not rule out the problem of the integrated circuit board;
(4) Poor fit of moving parts;
(5) The ambient temperature is too high, resulting in a high temperature of the lubricating oil;
(6) Exhaust pressure does not reach the set value; cause selection error (selected small) Intake filter / oil separator block air intake throttle valve does not work or malfunction (in the closed part of the intake valve) screw leakage serious;
(7) The return road is not smooth. The oil filter is clogged! Insufficient oil supply;
(8) The compressor speed is not enough, and the V-belt is too loose, which will also cause the gas volume to drop;
(9) The quality of the lubricating oil is not good, the viscosity increases too fast or the oil is dirty;
If the oil temperature is too high, first check the amount of oil is enough? Then check the cooler, then the spring in the temperature control valve is broken, and finally the oil filter is blocked.
8. Record the time to replace the lubricating oil and other components on site, check the records, and implement the responsible person.
9. It is found that the evaporation loss of the lubricating oil is very large. First, check whether the oil separator is perforated.
10. Screw compressor oil is a special oil and must be managed by a special person to prevent oil mixing accidents in daily life.
After the oil is used up, tighten the lid and do not open the lid.
Screw compressor oil use precautions:
July 06, 2024