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Steps of Primary Maintenance for FRP Centrifugal Blower’s Equipment

02 October 2023

  1. Motor Maintenance
    Basically, the motor maintenance includes cleanliness and dryness. The cleaning is important because both dirt and dust is the insulator. When the heat cannot be flowed out, the motor will be overheating which causes lifetime to be shorter. So, the dirt and dust should be consistently blown out of the motor coils by low-pressured air to prevent the possible damages. The appropriate location for motor should be both opened and dry to prevent short-circuit. In case that there is moisture in the motor coils, the pending for dryness should be applied before using the FRP Centrifugal Blower.

    For lubricant, the frequently filling-in should be done as the recommended duration in the manual which depends on the Horse Power (H.P.) of motor, dirty conditions and temperature of motor coils.

  2. V-Belt Drive Maintenance
    Primarily, detect for any dirt which is prickly or sharp. This kind of dirt will touch or obstruct the V-Belt Drive which can cause the damages, less effective operations and shorter lifetime.

    For cleaning the V-Belt Drive, use fine-sanded cloth. Avoid using any cleaning materials which are hard or sharp to prevent the V-Belt from being damaged.

    Constantly, test the tightness or looseness of the V-Belt Drive. In case that the V-Belt Drive is not appropriately leveled which may cause the vibration, reinstall it with proper tension. When the damages which affect the overall operation system are detected on the V-Belt Drive, consider for the necessary replacement. Generally, the lifetime of the V-Belt Drive is around 1-3 years depending on the operations. If the FRP Centrifugal Blower is continuously operated for 24 hours without being stopped, the service life of the V-Belt Drive may be shorter.

  3. Bearing Maintenance
    For bearing maintenance, grease should be applied as the recommended duration in the manual. The lubricant filling as appropriate quantity will help to extend the lifetime of bearings. The proper filling of the grease is to fill in as the same quantity of internally used ones. The over fillings of grease should not be done because there may be the dusts causing the bearings to be overheated. These can cause the bearings to be deteriorated and may cause the FRP Centrifugal Blower to work with strange sound or unusual vibration.

    In addition, the filling of bearing lubricant before shutting the FRP Centrifugal Blower for a long maintenance and monthly turning of bearing shaft can help to prevent to the bearing erosion.

  4. FRP Impeller and Shaft Maintenance
    Always, monitor the dirt on FRP Impeller and shaft. If there is anything unusual on the impeller, this may cause the FRP Blower to be unbalanced and excessively vibrated. The primary fixings are to clean and check the surface of FRP Impeller. If the propeller is damaged or eroded by fume, it will unbalance and may forcedly vibrate. The renewal of the FRP Lining should be appropriately considered according to each site. As the FRP Lining on impeller surfaces can cause the unbalancing of FRP Centrifugal Blower, the balancing should be rechecked by the specialist team with standardized equipment.

    Moreover, the positions and tightness of every nut of FRP Centrifugal Blower must be tested. If there is any loose nut, it has to be retightened as previously. Also, the marker should be applied for identifying the positions of screws or thread-locking which will help the tests to be easier.

  5. Structural Maintenance
    Apart from the mentioned equipment, the structures of FRP Centrifugal Blower should be regularly tested including:

    -  Test the operations of springs or vibration isolators to ensure that they still can run normally.
    -  Check the steel structures and every screw. If any screw is loose, retighten it as previously.
    -  Detect the cracks on concrete surface where the FRP Centrifugal Blower is installed. This is to make sure that the structural areas of the FRP Centrifugal Blower still in the perfect conditions.