Ventilation fans daily inspection and maintenance.

Do the following:
1. Ventilation fans daily inspection should have the following fan project.
A. Ventilation fans running the change of the voice.
B. Ventilation fans bearing and the motor bearing vibration and noise.
C. Ventilation fans vibration (including impeller, coupling).
D. all kinds of bearing temperature (absolute temperature should be less than 40゜C).
E. Ventilation fans belt the quality condition.
F. above all should be insisted on inspection, and make a record, often can make you familiar with inspection fan normal state, once anomalies can quickly find.
2. The daily maintenance of ventilation fans.
A. regular grease filling (please user strict regulation, special quantitative filling grease, form the regular system)
B. Note the amount of oil is commonly 30 grams of ~ 50 grams every time, time interval for 2500 to 3000 hours (working time).A factory workshop of the experience is that oil gun come on and started A few has no stress, to have stress again when charging a few can. B factory workshop of experience is: not usually come on, every 3 months will open the bearing, the internal grease all out, clean diesel and bearing on both sides and bearing room all filled with grease. Excessive refueling will lead to bearing temperature rise become tall, but this is normal, the operation after period of time temperature will return to normal.
3. Ventilation fans should be maintained a regularly every year or two.
4. Regular maintenance of preparation, should with daily maintenance record according to identify key maintenance projects, should be ready for all kinds of spare parts, wearing parts.
5. Regular maintenance projects:
A. impeller inspection and replacement. Open ventilation fan view hole into the mouth or the clear grey, observe whether crack and leaf excessive wear.
B. Ventilation fans bearing check, replacing and note oil.
C. coupling inspection and wearing parts replaced. Check the dowel pin and elastic sleeve. Drive carefully before coupling of one around, with flat feet on coupling different positions of the check and adjustment, until completely with one so far.
D. motor bearing check, replacing and note oil.
E. belt examination and replacement. Two pulley to is, forbidden belt distortion. The belt a critical moderately. Remove the belt pulley shall first will center distance down, it is strictly prohibited to rigid loading and unloading belt.
6. Before the first test should be manual dish car, inspect for abnormal friction, if the normal can electrify commissioning. Into the mouth or out the mouth opened to the test should be simultaneously monitor current, avoid motor overloaded.

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