I just received a new Grizzly G0715P table saw and I’m having troubles running it. I’ve done the conversion to 110 from 220 by changing the jumpers, installing a new 20 amp breaker at the switch and swapping out the plug. Tried powering it up and it very consistantly pops the breaker in my panel. I can reset the breaker and get the saw to start but if I stop it, almost consistantly it starts the 2nd time but will pop the breaker again the 3rd time.
I’ve got 2 20 amp cirucits located about 2 feet directly below the panel and the same thing happens to both of them.
Some things to note:
- When it does start up and run, it seems to run okay
- There is nothing else located on either circuit
- The saw was delivered to me with some pretty significant damage to the box. There was no visible damage to the saw, but the driver said it was probably dropped several times (he said it fell over once on him as well). In the back of my mind I’m wondering if that could have caused jarred something loose
- When I can get the saw to start, I notice this odd squeaking sound when the motor starts up, as if it’s not lubricated properly or something. While its running it sounds normal, and as the saw spins down it sounds normal too. The only time that there is the strange sound is when it actually manages to start up
- The breaker at the saw switch does not trip (or at least I don’t have to depress the button the breaker)
- Both of the 20 amp circuits were installed by the same electrician so I suppose there could be a problem there, but he’s quite good and I would be very surprised
- I run a Jet DC1100 very regularly on one of the circuits and I think it’s tripped once in two years or so
- I’ve double and triple checked the jumpers in the motor junction box
- I’ve double and triple checked the wiring on the plug
Any ideas? I’m going to give Grizzly a call tomorrow, but I’m kind of at a loss as to what might be going on. Thanks to everyone in advance.