Tweco 300 Auto-Cut - Manuel (Page 114)

Manual 0-4817 Auto-Cut 300 A-18 APPENDIX
E. Install Plasma and Shield Gas Leads
1. Remove the gas box/arc starter cover from the power supply.
2. Connect Shield and Plasma gas leads to gas box on power supply. Shield gas and plasma gas connections are
left- and right- hand threaded and will not interchange. The leads are identical with one each of these fiitings
so you will need to use oposite ends to make these connections.
3. Replace the cover.
4. Locate the two brass adapters and attach them to the two 4' long Plasma and Shield gas hoses that go to the
torch.