Check whether the lubricating oil in the oil tank is lower than the low oil level. If the oil storage is insufficient, please add oil (68 # hydraulic oil is recommended, and the oil grade can be appropriately reduced in low temperature and cold areas).

检查机油是否混入水份等污物而变质，如变质请及时更换机油。

Check whether the engine oil deteriorates due to water and other dirt. If it deteriorates, please replace the engine oil in time.

清洗油过滤器，如太脏请及时更换。

Clean the oil filter and replace it in time if it is too dirty.

检查滴油嘴的滴油状况是否正常，如滴油嘴脏了可卸下调整螺钉清洗。

Check whether the oil drip condition of the oil drip nozzle is normal. If the oil drip nozzle is dirty, remove the adjusting screw for cleaning.

保持风机房环境卫生，周边无油污或杂质，保持良好通风很关键。

It is very important to keep the fan room clean and free of oil or impurities.

空气滤清器的检查，如脏了可卸下空气滤清器，旋开蝶型螺母，拿开盖子，清洗过滤海绵如太脏请及时更换（卸滤清器时注意不要把脏物掉进风机主机内）。

Check the air filter. If it is dirty, remove the air filter, unscrew the butterfly nut, remove the cover, and clean the filter sponge. If it is too dirty, please replace it in time (pay attention not to drop the dirt into the fan host when removing the filter).

检查风机是否有漏油或漏气。如果出现这种情况，请及时修理，或联系生产厂家进行维修。

Check the fan for oil or gas leakage. If this happens, please repair it in time or contact the manufacturer for professional repair.

检查皮带，风机运转一段时间后，皮带会松动或断裂。如果松弛松弛，松开电机的固定螺栓，移动电机，将V形皮带拧紧到合适的位置，然后拧紧电机固定螺栓。并注意电机皮带轮的端面和风机皮带轮应在同一平面上，并检查两个皮带轮的顶部螺钉是否松动。如果松动，请握紧。

Check the belt. After the fan runs for a period of time, the belt will loosen or break. If it is loose, loosen the fixing bolts of the motor, move the motor, tighten the V-belt to the proper position, and then tighten the fixing bolts of the motor. Pay attention that the end face of the motor pulley and the fan pulley should be on the same plane, and check whether the top screws of the two pulleys are loose. If loose, hold tight.

检查阀的灵活性。如果不灵活，请清洁和调试，以确保可靠的打开和关闭。

Check the flexibility of the safety valve. If it is not flexible, please clean and debug to ensure reliable opening and closing.

检查低噪音回转风机及电机的运行状态，如果发现异常振动或噪音，温度不正常应及时停止并修复温度，以找出故障原因和相应的处理方法。

Check the operation status of low-noise rotary fan and motor. If abnormal vibration or noise is found and the temperature is abnormal, stop and repair the temperature in time to find out the cause of the fault and corresponding treatment methods.