Set up oxygen and acetylene tanks by securing the tanks, attaching the regulator and hoses, checking the hoses and tanks for damage, turning the valves on in order and striking the flame. Be sure to use welding goggles while using the equipment to protect your eyes.
- Secure the tanks
Before working with oxygen and acetylene tanks, use a strap or restraint to secure the tanks in an upright position to a post, wall or portable cart. An oxygen tank is under such extreme pressure that it becomes a deadly missile if it falls over and its valve breaks off.
- Attach the regulator and hoses
Firmly attach the regulator to the tanks with an adjustable wrench, but do not over-tighten it or the connectors may be damaged. After attaching the hoses to the regulator, attach the red hose to the acetylene tank and the blue hose to the oxygen tank.
- Check for damage
Do a visual check for obvious damage to the tanks or hoses. Check that the hoses hold pressure. If the pressure reading drops, there is a leak in the hose. Wipe down the tanks to remove potentially flammable grit, oil and grease.
- Turn on the valves
Slowly turn on the oxygen valve first. Face away from the glass regulator gauge in case it shatters. Loosen the adjustment screw on the regulator to stop the oxygen flow, and then open the acetylene tank valve. Loosen the adjustment screw to stop the acetylene flow.
- Light the torch
Attach the torch handle to the hose, open the torch valve a quarter of a turn, and use a torch striker to light the flame.