1、空（kōng）壓機油混入金屬粉末的（de）鑒別。通常在換空壓（yā）機（jī）油和（hé）油過濾（lǜ）器時，應檢查放油堵頭及油過濾器內（nèi）金屬粉末的情況，以便粗略地判斷磨損情況和（hé）可能發生故障的部件。從加（jiā）油口抽取0.05~0.08L空壓機油油樣（yàng），通過原子關譜儀進行分析，取得各種磨削金屬（shǔ）的含量，從而掌握空壓機的磨損情況，並結合（hé）其他檢查情況，提前做好修理準備工作。

1. The identification of air compressor oil mixed with metal powder. Usually, when the oil and oil filters are replaced, the oil plugging head and the metal powder in the oil filter should be checked in order to roughly judge the wear and the possible failure parts. The 0.05~0.08L air compressor oil sample is extracted from the filling port and analyzed by atomic spectrum analyzer. The content of various grinding metals is obtained, thus the wear of the air compressor is grasps, and the repair preparation work is done in advance in advance with other inspection conditions.

2、空壓機（jī）油混入水的鑒別。從油底殼放出少量空壓機油，檢查空壓機（jī）油麵是否被乳化，水箱水位是否降低，空壓機油油（yóu）麵是否增高；冷機時打（dǎ）開空壓機油口的加油蓋，檢查蓋內側是否有水珠；空壓機運轉到正（zhèng）常工作溫度時，在不停止運轉的情況下，迅速抽出空壓機油尺，使（shǐ）空壓機油尺上黏附的空壓（yā）機油滴在渦輪增壓器的（de）外殼上，看是否有水滴迸發。

濟南空壓機

2. The identification of air pressure oil mixed with water. A small amount of air compressor oil is released from the oil pan to check whether the oil surface of the air compressor is emulsified, the water level of the tank is reduced, the oil surface of the air compressor is increased, and the air cover of the air compressor oil port is opened in the refrigerator, and the water beads on the inside of the lid are checked. Draw out the dipstick of the air compressor so that the air compressor oil attached to the air pressure oil gauge drops on the shell of the turbocharger to see if there is any water droplet erupting.

3、空壓機油混入燃油的鑒別。空壓機（jī）油已混（hún）入大量燃油時（shí），可根據氣味，黏度是否降（jiàng）低，油麵是否增高來判斷；取空（kōng）壓機油（yóu）數滴滴入空壓（yā）機的檢查器皿中，將其加（jiā）熱到標準溫度，然後看它能否被點燃。

3. The identification of air pressure oil mixed with fuel oil. When the air compressor oil has been mixed with a large amount of fuel, it can be judged according to the smell, whether the viscosity is reduced, the oil surface is increased, and the number of the air compressor oil drops into the air compressor's inspection vessel, and then it is heated to the standard temperature, and then it can be ignited.