It's a metalworking wide belt sander for graining stainless bar stock. It was working great, then one day we come in, turn it on, and the conveyor suddenly stops. Everything else works great, light even comes on saying the feed is on. Did some testing with a DMM and found the fuse to be blown. Replaced it and the new one popped right away. It was a 3amp fuse. Put a 4amp fuse in there just to see what happened. Belt would go fine with no load, but once I put some material through it, it popped the fuse. I even put a 5amp fuse in there, same thing as the 4 amp.
Any idea what would cause this? Like I said, it was working fine the day before. So something happened over night that's causing excess current from the motor. Could it be just the motor getting old? That's why I put the 4amp fuse in there, because I've heard that as a motor ages, it starts to draw more amps. It's rated at drawing 2.5amps peak, and the fuses are all time-delay fuses. I loosened the conveyor tension a little to see if that helped, no change. Only other thing I can think of is something maybe seized, or something got jammed in the gear assembly putting a lot of drag on the drive. Any other ideas?
Any idea what would cause this? Like I said, it was working fine the day before. So something happened over night that's causing excess current from the motor. Could it be just the motor getting old? That's why I put the 4amp fuse in there, because I've heard that as a motor ages, it starts to draw more amps. It's rated at drawing 2.5amps peak, and the fuses are all time-delay fuses. I loosened the conveyor tension a little to see if that helped, no change. Only other thing I can think of is something maybe seized, or something got jammed in the gear assembly putting a lot of drag on the drive. Any other ideas?