As you know any moving parts need some grease to work property.
It would be shame when your Makita/DA machine is broken:doublesho because of some grease problem. To prevent this I recommended you to take grease service for your lovely machine. This write up is for the Makita BO6040, but with some common sense you can do this grease service for any polish machine:buffer:

Tools needed.

Good and right size Philips screwdriver.
Allen wrench.
Good grease.
Ice scream stick or something silmular



10..9..8..7..6..5..4..3..2..1..lift off:driver:

-Remove the backing plate.




-Remove the seal plate.




-Remove the dust seal.




-Clean the machine before greasing.


-Greasing.


-Install all parts together.



-Switch the speedcontrol to the lowest range and connect the machine to the power outlet. Let it runs for to let the grease spread property into the gears.



-Done