Just added some steps (step 11 thru 14) and images, they will come out once verified.

Hope they help.

Forgot to mention, putting things back there is also a trick, the grey panel ( shown at step 4), the tip has to go into a notch(not sure I should call it a notch, basically 2 very close pieces sticking out to hold something in between) on the dust container. You can’t put them back at the very end, or you can’t get into the notch.

So, you have to do this step before you screw on the screws for dust container, so you have a little wiggle room to get into the notch.

I was intended to clean the motor contacts, this is the most relevant info I can find. However, as the first 2 posts mentioned, there is no way to open it only by following the info in the original doc.

I managed to open the motor by following what Michael said. The steps in the original doc is not even half way.

There are 4 screws in total to hold the motor/fan part. To reach the bottom 2, there are about 10 additional screws to remove, 2 of them are hidden, 1 under the switch(you need to pry off a cover piece), the other a foam sticker and need to peel that foam first. I took some photos but don’t know how can I post them.

Tool wise, they are not Philips, they are T10 and T15, and with a center hole in them, plus, there are certain screws(2) are deep in holes and you have to have a thin extension stick to reach. == > Don’t bother if you don’t have them.

I was trying to fix the motor that sparks too much, however can get rotor part out of the housing, the fix wasn’t a success. Anyways,