How do I perform routine maintenance on the XMT 304?

Every 3 months, inspect and replace damaged or cracked torch bodies, replace cracked or unreadable labels, repair or replace cracked cables and cords, and clean and tighten weld connections. Every 6 months, blow out the inside of the unit by directing airflow through the front and back louvers — do not remove the case when doing this. Always disconnect power before performing any maintenance. (Page 24)