Motor
Yes blow lint out of the motor, but also get a few drops of 3 in 1 oil or turbine oil into the bearings at each end of the motor. Take the motor out, turn it so the shaft is straight up and down, that way you can use a small small paintbrush and get lint out of one end so it falls on the floor, not gets blown back deeper inside.
Then flip it over and get the other end. And then a few drops of oil down the top shaft, let it sit like that and spin the shaft a few times, it gets the oil down into the bearing. Then turn it over, oil on the other end of the shaft, same thing. Adds years of life to an old motor.
Ain't the amount of lint amazing? Follow all the advice from folks here on a Maytag dryer, you'll get 20 more years of service. Check the drum belt while you're at it, $10 or 15 could be well spent, and you won't have to re-open and re-delint for 20 years. Spend $50 now instead of $800 later. If Lowes doesn't have a small appliance bulb, try some other store. Spend some time and money now and you'll have trouble free years of service.