Maintenance of the fan
1. Don’t allow fan with trouble running.
2. Don’t freely change the maintenance person, specific person operating and repair the fan is preferred.
3. Regularly remove dust, contamination and the foreign materials and prevent rust .
4. Maintenance can be carried out during shut down of fan to assure operators safety.
5. When the fan is repaired, the motor switch must be monitored or locked.
6. Inspect the thermometer and oil indicator regularly.
7. During the star-up, shut-down or operation of the fan, if some abnormal thing happens, inspections shall be carried out immediately; if it is small failure, the reason shall be checked out and eliminated, if it is a big failure, the fan shall be stopped and inspection and maintenance shall be made immediately.
8. Except replacing the lubricant after overall, replace the lubricating oil periodically.
The main failure and reason of the fan
1) severe vibration of the fan
①friction between casing (or suction unit)and impeller.
②Foundation is not rigid enough or firm enough.
③loosing of rivets in impeller or deformation of impeller.
④Loose match of shaft with impeller disc
⑤Loose of connecting bolts between casing and support, and between motor and support.
⑥The installation of inlet and outlet ducts is improper which causes the casing deformation and resonance.
⑦Rotor unbalance caused by dust, contamination on blades, wear of blades, deformation of impeller and bending of shaft.
2) High rise of bearing temperature
①severe vibration
② lubricant is poor in quality, deteriorated, mixed with dust, sand, contamination and etc, or insufficient in quantity.
③Wornout of rolling bearing
3) Overcurrent and high temperature rise in motor.
① The valves on inlet and outlet pipes are not closed completely when starting-up.
② Input voltage is low or a single phase of power supply is cot out.
③ Influence caused by severe vibration
④ The speed of main shaft is bigger than the rated value.
Purchase information
When ordering, please the fan type, machine number, flow rate, full pressure, the transmission medium, the use of temperature, exit angle and rotation direction,etc..
If the user′s needs are not in conformity with the specifications provided in this manual, please contact the design department of our factory for special design.
Huashide(shandong)fan Co.，Ltd
Http:www.hsdfans.com
Add:kunmingrod.linyi.P.R.china
E-mail:17853928877@163.com
Tel: 17853928877
