?Hello all? - first off I completely understand if nobody has the time to look over this one and probably requires a fairly indepth knowledge of how the Hammer combination machines electrics are setup.
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So, my Hammer B3 (single phase, 2005, teal paint) has become poorly. Working fine up until Saturday (with one minor quirk regarding braking). It?currently trips the breaker instantaneously upon starting the machine. Likely significant that this occurs in any mode switch position (on the B3 that is shaper or table saw). The first time trying to restart it there was a very short buzz (~0.5s) from the motor and the breaker went, all subsequent starts there have been no buzzes, no clicks, instant trip.

Initial thought was the table saw motor windings had worn past a critical point due to a stall the day before (which did at the time throw the thermal switch on the machine itself), but I have since tried the machine in shaper mode (which of course should swap the circuit over to the other motor) but shows the same issue. Instant trip.

I've investigated both start and run capacitors for faults but both appear to be as they should be (capacitance reading is bang on, not shorted etc.), unsure if there is more to testing a capacitor however.

There's another recent discussion on here about a C3-31 with electrical problems related to the brake (and resolved by replacing the brake module) but can't quite match the symptoms, notably mine appears to trip instantly.

Is there any potential for the brake to somehow be engaged during startup? A sticky relay etc? May be rather specific knowledge but, would anyone be able to describe a procedure for safely eliminating the brake as a factor?

As it is, not sure where to start with diagnosis as the above would seem to imply the issue is not with the motor or (shared) capacitors.

The quirk with braking mentioned above that may indicate something to someone with more knowledge than me, is that it would: 50% of the time work fine, 25% of the time it would engage for a shorter period than necessary, 25% of the time it wouldn't engage at all and spin freely.

Any further information or photos anyone may need I'm sure I can provide.