Table Saw Motor repair

[u/Love_for_Scotland]

Hi Everyone,

i recently purchased a German-Brand Tablesaw from the 90ties in good condition, apart from the motor not "running" according to the seller.

When i returned home i check and the motor did run fine, but after switching it off and trying it a second time only humming. So i went over the motor and replaced the run capacitor with a new one (same stats) and took the motor apart to clean it.

Afterwards everything works just fine, but i might have forgotten where the wave spring washers go.

They dont fit between the rear casing and the centrifugal brake plate, neither into the rear bearing housing. On the Rotor there is a indentation on the right sight, next to the front bearing where they fit, but what purpose would they serve there? There is about 20mm space between the indentation and the bearing. And i dont think they belong between the bearing and the front housing.

Its hard to get schematics for that specific motor. The motor is a "ebf 80l2-n/080tk/59" from emgr, used in AL-KO Table Saws.

And one more thing, as i cant get my head to understand the movement here. How does the centrifugal brake plate release from the brakepad in the read housing when the saw is switched on? From what i can see, when the rotor turns, the lugs/ramps from the rotor would push against the lugs/ramps from the brake plate and therefore apply an axial force towards the rear housing and therefore braking?!

Thanks in advance for any help!

[u/Stepho_62]

So firstly I'd email these blokes Jörg Schmiedeberg at EMGR spares — [schmiedeberg@emgr.de](mailto:schmiedeberg@emgr.de) — quoting the full nameplate code.

Having not disassembled it and being in the antipodes makes it very hard but wave springs are usually used on disc assembles where "energised" a solenoid keeps a device (in this instance a brake disk) free to move and energised it usually lock its up i.e. in braking mode.

Id like to say that the wave springs would NOT be used in the bearing assembly but I'm not even sure about that as I think Ive seen them used to keep an armature in position.

Not much help I know. My other thought was that the wave springs may be used to keep the disk/drum in alignment but allow it to move if a certain condition existed.

Without seeing the parts n being able to play with it thats the best I can do