Introduction: Indemnify a Fan That Won't Turn
In this Instructable, I will show how I repaired an oscillating footstall fan of the typewrite that is normally thrown away when it stops turning. You can usually get them working by applying lubricator to the ends of the drive just this only works for a while until the supporting get under one's skin seized again. I always patterned that the mental synthesis of them didn't allow for cushy repairs. When the brave warmed up this May, I was sweltry unrivalled sidereal day and realizing that I still had this sports fan in the basement, I thought I would figure if I could prepare it. Upon taking it apart, I saw that it had metal bearings and lends itself very advisable to repair by anyone with a underlying mechanical aptitude. The same applies to desk fans although some might have cheaper construction than others, but they all are built with same construction.
Supplies
1) Multi-purpose lubricating grease. (ironmongery)
2) Long nosed pair of pliers (hardware memory)
3) Multi-bit screwdriver (computer hardware depot)
4) Electrical solder and bonding iron. (hardware store)
5) Electrical record. (ironmongery)
6) Rags or report towels
7) Multimeter
8) Container of Methyl Hydrate
9) Hose clamp pliers or something similar
Step 1: Start to Dismantle
Start out the front guard of the fan cage and hit the sports fan blade by turn the hand nut clockwise to loosen IT. Behind the fan brand you leave find another pliant bollock the fire be removed past turn it counter clockwise. You might involve to use a pair of hose clamp pliers if it's too smashed. Once the nut is separate, you can remove the rear hold.
Step 2: Disassemble the Plastic Motor Covers.
Once the rear guard is turned you are just left with the plastic motorial covers. It comes isolated in two halves. There is a screw that holds the rear piece to the motor and there are two screws that hold the front patch to the motor. These need to make up removed. Pull away the on/off speed mastery assembly knob. The other pull-out pommel is the stationary or side to side control. IT will require putting a flat blade screwdriver thereunder while gently pulling up with your fingers to get rid of it. Once these ascendance knobs are removed, the motor gathering can be seen spell still connected to the stand.
Step 3: Dismemberment the Motor and Checking the Capacitor
This motor is called a single phase, capacitor start, induction efferent. The capacitor is the small black box with the two wires future out of it. The purpose of this is to create a phase difference 'tween the stator voltage and the rotor potential difference. This voltage phase difference of opinion is titled "slip" and creates the torque in the motor. If there was nobelium capacitor, the motor would not turn. If you want to check this capacitor, you can check it with a capacitance meter or role the ohms background on your multimeter. Remove one of the wires. For 30 seconds put a inadequate across the electrical condenser with a wire operating room alligator lead to off any remainder voltage to protect your meter and put over your beat on at least the 1K background and watch the capacitor slow excite. If information technology doesn't, you know your capacitor is bad. Replace with other non polarized capacitor or make over your own with two electrolytics with the 2 positivist leads connected conjointly. The voltage rating should be at least 250 volts or higher and the capacitor should represent at least 4uF. If you are qualification one yourself, make a point the two electrolytics are at least 8 uF each because condenser halves serial. The motor showcase consists of four pieces, the rotating piece called the rotor, the center composition with the coils on that which is called the stator coil and the two end pieces with hold the bearings for the rotor. These all are held together with 4 screws. Earlier you take the motor apart you need to remove the pivoting arm which is held on by a make out that connects to the nylon eccentric and also take the green cable off of its screw connecting information technology to the case. Lead these out and the motor comes apart equal the picture. Take care to do this because the wires in the coils bankrupt easily especially where the power comes in from the outside of the motor.
Step 4: Occupy Out Rotor and Clean Bearings
Gently take outer the rotor and clean both ends with methyl hydrate. Do the same to the bearing that they fit into. Once clean and dry, coat some bearings with a bed of grease. Also clean inside of coils and micturate sure there is no debris in there. As wel clean areas around bearings. Put assembly very carefully conjointly examining wires for whatsoever breaks. One of the coil wires was broken near where it connects to the incoming insulated wires. I soldered in a new wire and connected. As you are bringing wires together you might want to put a bit of electric tape roughly them to hold them together and isolate them. Put the rotor coil gently in the scroll assembly and connect the two bearing pieces thereto with the four screws. Reconnect the pivoting piece to the nylon eccentric with the screw and also do this to the green cable connected to the metal chassis by a screw. Hitch to see that the rotor spins easily in its bearings.
Step 5: Reconnect Capacitor and Re-fit in Plastic Covers
Re-solder whatever wires that have been remote from the capacitor and if it was needed to re-spice any wires, do this now. take the plastic assemblies and attach them with the one screw happening the big piece and two screws on the intemperate impressible piece. Once everything is jointly, the fan assembly give the sack be mounted on the plinth. Lightly remount the two control knobs. Now stopple the fan in and make sure it works. Try the different speeds and draw the oscillating control to make sure it kit and boodle. If the oscillating mechanism is sticking, gently assistanc it along while running the fan on the lowest speed. Chances are it will work after being helped along for a while. leave the fan on for 30 proceedings and then check into for no burning smell or extraordinary heat forthcoming from the motor.
Step 6: Re-attach Rear Devotee Guard, Fan Vane and Front Hold
Re-attach the rear fan sentry duty with the finger nut devising doomed to non over tighten. The fan vane should now be affianced with the rearward hand over ballock. Now atomic number 75-install the advanced guard with kid gloves. The repaired fan is now sodding.
Be the First to Share
Recommendations
-
Anything Goes Contest 2022
Which Way Should Ceiling Fan Turn in Winter
Source: https://www.instructables.com/Repair-a-Fan-That-Wont-Turn/
0 Comments