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.
Lubricant for fan motor.
Don t use automotive motor oil.
Apparently wd 40 was the wrong oil to use.
It is excellent for smaller electric fan motors because it helps to reduce friction when there is a moving surface.
First find the point where the shaft is holding the motor and clean that area.
Then remove the fan s blade and wash it with soap.
Instead pick up electric motor oil like 3 in one electric motor oil about 3 at amazon.
It is now so far removed from the way most americans think it.
Afterwards you can oil the fan.
Whenever you have to lubricate an electric pump bench grinder or other electric motor don t pull just any oil off the shelf.
Lubricate a box fan motor step 1 remove the front grill of the fan.
The furnace blower motor is going to be working in very hot conditions so the type of lubricant you use is important.
Plus it contains detergent.
Step 2 lay the fan down on a flat surface with the exposed face up.
Instead you might look for a particular brand of lubrication which is right for your motor.
Then put in a few drops of number thirty oil on both ends of the aforementioned shaft sticking out of the motor.
This lubricant oil is produced by liberty oil products and it is a 100 synthetic oil compound.
Grasp the blades firmly and lift slowly to remove them.
Do not use any flammable lubricant such as oil.
Add no more than 1 to 2 drops at each oil port.
Step 3 apply a light nondetergent household oil that is sae20.
Fan maintenance it s important in this throwaway society to realize the value of maintenance.
It s too thin for electric motors.