Looking for some information on a safety bullitin put out on the miller load bank a couple of years ago. I know this a kind of vague post but I have a concern that I may have an antiquated unit. Seems to me there was an issue with the Knife edge switches chaffing thru and energizing the switch. Might be wrong about the content of the bullitin all together but worth looking into.
Mainly used the bank for service of the Syncrowave 350's, 351, and 300's. I have recently upgraded the School to Dynasty 200DX and 300DX units.
Looking to switch to the LBP-350 portable if possible.

Thanks for the feedback in advance.

DC1 Joseph Ander
Advanced Welding Instructor
USCG TC Yorktown VA.