Remove the weights and pendulum. These are generally hung from small hooks and can simply be lifted off. Dust with the soft cloth and set aside. Be sure to take note of which weight is on the left, and which is on the right as they are not the same.
Remove the clock hands and undo the two movement mounting screws which secure the movement to the seat board. Place the screws in a safe place and remove the movement.
Dust the movement lightly with the soft cloth and remove dust and debris that has built up. Each gear has a small axle and a pivot at the end. Apply a small amount of oil to the gear pivots.
Return the movement to the case and secure it with the two screws. Put the hands back on.
Examine the front and back of the clock to locate the oil sinks on the back plate and front face of the clock. These are tiny holes in the plate and face of the clock. Carefully drip a single drop of oil into each oil sink. Do not oil it too much or the oil will drip into the movement.
Wipe down the entire clock to remove any excess oil. Hang the weights and pendulum back in place and set the time.