ESAB MIGMASTER 250 Instructions Manual page 20

Never operate the welding machine with any por-
tion of the outer enclosure removed. In addition to
a hazard, improper cooling may result in damage to
the welding transformer and the welding machine
components. Warranty is void if the machine is
operated with any portion of the outer enclosure
removed.
4.3.2 PRE-WELD REQUIREMENTS
4.3.3 SET-UP PROCEDURE
Only qualified personnel should make these changes.
Make certain the primary power has been discon-
nected and all safety procedures have been fol-
lowed before proceeding with these instructions.
4.3.4 WELDING OPERATION
20