Then put in a few drops of number thirty oil on both ends of the aforementioned shaft sticking out of the motor.
Lubricant for fan motor.
Do not use any flammable lubricant such as oil.
Apparently wd 40 was the wrong oil to use.
It not only removes any remaining lube but it can melt coil wires the lightly coated copper wires twisted up in electric motors and cause an electrical short.
Instead pick up electric motor oil like 3 in one electric motor oil about 3 at amazon.
Step 3 apply a light nondetergent household oil that is sae20.
Then swivel the shaft and cleanup any excess oil.
Instead you might look for a particular brand of lubrication which is right for your motor.
This lubricant oil is produced by liberty oil products and it is a 100 synthetic oil compound.
Then remove the fan s blade and wash it with soap.
It is now so far removed from the way most americans think it.
The furnace blower motor is going to be working in very hot conditions so the type of lubricant you use is important.
First find the point where the shaft is holding the motor and clean that area.
Fan maintenance it s important in this throwaway society to realize the value of maintenance.
Add no more than 1 to 2 drops at each oil port.
It s too thin for electric motors.
Grasp the blades firmly and lift slowly to remove them.
Afterwards you can oil the fan.
If there is a c clip pry it off first.
Never put wd 40 in any electric motor even if the rotor is stuck from filthy dried up lubricant.
Plus it contains detergent.
Lubricate a box fan motor step 1 remove the front grill of the fan.
Step 2 lay the fan down on a flat surface with the exposed face up.