2-11. GENERAL. (CONT)
Certification. Before welding any assembly of the laundry unit, the welder must be certified as a welder of ferrous
metals. The certification is based on ASME Boiler and Pressure Vessel Code, Section IX, and meets or exceeds
the intent of the following military specifications and standards:
MIL-W-52574 (ME), Welding, Steel
MIL-STD-1261, Welding Procedures for Construction Steels
Components Made of Steel. The following procedures provide instructions for repairing the air tank, frame
assembly, and other components of the laundry that are made from steel.
Before welding, thoroughly clean surface to be welded. Do not use solvent for cleaning.
Remove burrs and sharp edges.
Weld damaged area in accordance with MIL-W-52574 (ME), Type I.
Welding rods shall conform to Federal Specification E-15599, Class SA 233, 3/32-inch diameter.
Power source can be ac or dc reverse polarity, 30 to 80 amperes.
Penetration shall be full, at 14 inches (36 cm)/minute welding rate.
Preheat material to be welded to 50F (10C).
Avoid starts and stops when welding. Chip slag and restart the weld.
Inspect weld joints for conformance with specification details and for surface uniformity.
Grind welded seams smooth.
Clean exposed metal surfaces.
Apply one coat of primer (item 6, app C).
Apply finish coat (item 7, app C) in accordance with FED STD 595.
2-58 Change 1