Hi I fix roll laminators for a livingall thru the pittsburgh area, have been servicing machines my entire adult life since 1975.
When the machine stalls try pushing the reverse switch and see if it runs ok backward. This is the most common symptom of failed heat roll bearings. They lock up in forward but usually run backward OK.
Feel free to call me telephone help is always free:)
bob haller service and sales 412 848 0101, December 2014