Dewalt DW433 3x21" Sander - Need help removing the armature

[drandersoninc]

On a recent project I managed to wrap a portion of the belt around the drive wheel, overheating the engine and breaking off some of the baldes of the fan. I tore the sander down as far as I could and removed the broken off debris, but cannot figure out how to remove the Armature (Part Num: 398076-00 eReplacementParts.com : Armature and BRG. [398076-00] - $39.25) so I can swap out the fan blade.

The sander still works, but heats up very quickly (I'm assuming to portions of the fan blade missing). I've looked online for repair manuals but without success, can someone describe to me what the steps and tools would be to remove and replace this part?

Thanks in advance for your help.
Darin

[drandersoninc]

Here's the answer from talking with a repair rep, given I haven't received any responses to date.

The armature (398076-00) can be removed, but the easiest means to do this is to effectively destroy the drive pulley holding it on (393741-00). The nut is a left hand turn nut (leftie tightie, rightie loosie) which makes sense given the counterclockwise spin of the drive belt (so it keeps the nut tight).

Lockjaw clamp the fan blades in the armature, then lockjaw the drive pulley and rotate clockwise to loosen. Replace the parts and reverse the process.