I only found this thread yesterday due to my Electra Beckum SCMC having a problem. Blade would stall and stop spinning when applied to the timber and the blade seemed to have a very minor delay time from turning it on until the blade started spinning...only very small delay but perceptible. After the usual checking that the blade was seated properly & Arbor nut was tight, I proceeded to take it apart.
I discovered that with the blade off , I could apply pressure to the spindle with a piece of timber while it was spinning and I could stop it spinning with a minimum of pressure while the motor happily kept going.
Removed the motor and checked out the spiral thread gear on the motor and that look ok. I can only surmise that the gear/cog inside the spindle assemble is stuffed.
So either I look for parts to fix it or purchase a new SCMS...the EB went under in the 2011 flood through my shed but I resurrected it and has been a great little saw....which brings me to here.....I checked out the Makita LS1016 at Trade Tools and that looked a fine machine but price wise it is in the upper level. It has a 250mm blade. I will have a look at the Swart website and see if their SCMS checks out OK for my needs.
It would be a big jump up in blade size from the EB, it's blade is only 210mm