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