Preventative Axial Fan Maintenance Tips
Many axial fan installations out there are likely to fail in future if they are not checked and maintained on a regular basis. In addition, as the fans get older, their maintenance should ideally be done more often than usual. In most buildings, the owners have installed vibration sensors or switches on their motors or fans to help in the protection, alarm, shutdown, or trend conditions. The following expert recommendations will help save a life; prevent serious injury from occurring as well as cost and inconvenience most often experience when major repairs are needed.
Check your blades for excessive looseness. If your fan blades are too loose, you have a major problem. No matter the position of the blade, the shaft lock nuts on your fans should be secure and tight. That means that the blade nuts ought to be set in order to ensure that the blade will never get free during radial direction. The clearance between blade tips and casing of your axial fans is, most often, small; this means looseness can cause rubbing.
Check Internal Conditions
Axial fans manufacturers recommend that you check, service and record all internal conditions of your fan including torque clamps, motor shaft bolt torque, side channel blower, and mechanical stop rods. You should also keep a complete record of the axial fan actuator section, reaction plate, rubber diaphragm, and rollers. Do not forget to check regularly on the thrust bearing lubrication, clevis assembly, lever arm ball bushings or joint, and lock nuts. During this inspection ensure that the nylon washers, blade shaft sleeves and slide ways or shaft lubrication are give a thorough once over.
If this type of inspection has never been recorded in the past, check your fans as soon as possible!
Check Fan Hub and Motor Shaft
Ensure that there is no loose fit in the motor shaft and fan hub. If loose, one of the most noticeable symptoms is increased vibrations and erratic mechanical noises like clunking. Try prying a fan blade at the six o’clock position using a flat bar to detect if there is any excessive play. If you find excessive looseness, you usually require axial fans Australia machine shop repairs.
Check Your Blades
Thoroughly inspect all the blades for any signs of defects like chips, hairline cracks, dents, or casting imperfections. Make a record of the blade condition by numbering each of them. If unsure about a certain imperfection, do not hesitate to call in an engineer who will inspect and advise you accordingly. You can also take digital photos of the fan blades as well as other parts and email them to the professionals.
At AirEng, the professionals take your axial fan seriously. The team has taken in its stride to design and build fans for challenging applications. The number of AirEng fans installed all over the world is a clear testament of the success and expertise they have. AirEng products offer generous service factors that ensure any product you purchase offers you a reliable and long service life, no matter the application. The professionals at AirEng also carry out stress analysis to ensure that every product performs in a consistent and reliable manner for many years to come.
For more inquiries, just visit http://www.aireng.com.au/products/axial-fans.