- What is the horse power of the motor?
- What is the rating of the circuit breaker?
- Are you running on an extension cord?
Circuit breakers can take some time to trip if the overload is small. As the motor slows, it draws more current.
If a saw has been moved, it may no longer be in alignment. Using a vernier caliper check that the blade is parallel to the miter slots. To do this, mark a tooth with a felt pen. Put the tooth just above the center plate on the leading edge, then repeat using the same tooth at the trailing edge. The numbers should be the same to within a few thousands of an inch.
Next, check that the fence is parallel to the miter slots. This is easier. Slide the fence adjacent to the miter slot and lock it. Again, it should be parallel to a few thousands.
That saw, I think is a cabinet saw, with the saw mounted on the base. Adjustment is usually done by loosening the bolts that secure the top to the base. Should say in the manual if that came with the saw. If not, google it.
In passing: Chipboard is hard on blades. I buy Freude 7.25" circular saw blades on sale for rough work. As a smaller diameter, there is more torque and the saw bogs down less. It's also a thinner kerf. Finally, if you do bind the blade, stuff coming at you is only moving 45 mph instead of 70.