bearing replacement

My BD 713 plane has a very sick sounding bearing. It's the one on the end of the armature which seems to be held in place in the outer housing by a tooth belt drive cog. To get at the bearing, for which BD sell replacements, I need to remove the cog but can't see how. Is it a hub puller job or...

Hi all, I am looking for confirmation of control PCB and mechanical contactor switch(MCS) wires to a new motor which has a plastic connector with 6 spades including the two tacho wires. The old motor has 8 spades including two tacho (not a problem) and two loop wires. The loop connects the...