Furnace Blower Motor Oil Ports

I m using 3 in one sae 20 motor oil for electric motors http amzn to 2k63xwl if your motor has little yellow sometimes black removable plugs you can o.

Furnace blower motor oil ports.

It is imperative to lubricate the furnace blower motor once in a year for smooth hassle free operation. If you have a serviceable blower motor it has one or two oil ports. I couldn t tell by the picture. Or send us some sharp photos of all sides of the motor and we ll comment further.

This video is part of the heating and cooling series of training videos made to accompany my. Lubricating a furnace draft inducer blower also includes the motor shaft where it enters the bearing collar of the blower wheel. Oiling the furnace blower motor. If the motor has oil ports it should be lubricated annually.

The observation port allows monitoring of the inside of the heat exchanger during the operation of the furnace. Do not apply too much oil as over lubrication can lead to other complications. Unless the motor has oil ports at either end they are sealed bearings and can t be oiled. Step 2 inspect the blower motor for the oil ports which are located directly on the side and are sticking upwards.

Locate them and lubricate the ports with the same quantity of oil. Two or three drops will suffice. Below we illustrate three electric motors all happening to be found in heating furnace blower compartments. Going by past experience inducer motors rarely if ever have oil ports.

They may have red or other colored plastic caps that cover them. Cleanout and observation ports as shown in figure 12 2 an oil furnace typically is provided with one or two cleanout ports to allow access to the heat exchanger for cleaning soot removal. I show where the oilers are on the blower motor of the furnace. An oil port is on both sides of the motor.

Oil ports will be obvious often capped with a hinged cap or a hole facing up marked oil on the steel body of the motor. Apply two or three drops of 10 weight nondetergent motor oil not all purpose oil to each port. Depending on the manufacturer there might be two or three oil ports. They should be clearly marked with labels.

If the blower shaft has oil ports it too should be lubricated annually following the same procedure. Blower shafts on the furnace blower motor could have additional oil ports.