Lubrication is essential to the blades, they can never be allowed to go dry.
Every time hair builds up in the blade it scoops up badly needed
oil and removes it when you clean them. How much oil
should one use? With today’s new clippers having higher speeds this
produces more heat. Heat can be controlled by changing blades while
keeping the oil on them and never letting them get dry. If the blade
gets dry it will cause more friction and more heat. So, the more you
keep a good comfortable amount of oil on your blades, the less chance
of heat causing red buildup and the cutting surfaces going dull.
How do you oil a blade? Use a quality lubricate i.e Andis or Oster oil
slide the cutting edge over slightly and put a drop of oil on the contact of the comb - that is where the cutter part of the blade actually touches the main part of the clipper blade.
just a drop in each place (4 drops total is sufficient) This should actually be done whenever you are using your blades.