Lincoln Electric spirit II 150 Technical Manual page 112

Section 6: Maintenance &Troubleshooting
Automatic Gas Console (AGC)
1. Remove the cover of the automatic gas console. Using clean, dry, compressed air,
blow out all accumulated dust inside the unit. In an excessively dirty environment,
blow out the unit on a weekly basis.
2. Verify that all PC board connectors are installed securely.
3. Verify that all gas hose connectors are tight and that there are no leaks. Only
tighten the gas fittings enough to make a gas seal. The fittings are subject to
damage if over tightened.
4. Inspect all gas hoses to ensure no damage exists.
damaged gas hoses.
Plasma Console
1. No maintenance is required on the inside of the plasma console.
2. With primary power removed from the Spirit system, clean the touch screen as
necessary with a soft clean cloth and a cleaner approved for television or computer
screens.
Torch, Torch Leads, and Gas Hoses
1. Verify that all torch lead and gas hose connections are tight and that there are no
gas or water leaks. Only tighten the fittings enough to make a water or gas
seal. The fittings are subject to damage if over tightened.
2. Verify that the braided shield of the torch leads is fastened securely to the brass
shield adapter that connects to the arc starting console. Also, make sure the shield
adapter is secured tightly to the arc starting console enclosure.
3. Inspect the braided shield for nicks or cuts and replace if necessary.
4. Remove the torch handle and verify that the connections at the torch base are
tightened securely. Only tighten the fittings enough to make a water or gas
seal. The fittings are subject to damage if over tightened. Coolant leaking from
the drain hole in the torch handle indicates damaged or loose torch leads.
5. Make sure the torch lead insulating sleeves are positioned to properly cover the
brass torch fittings at the torch base.
6. Inspect the outer sleeve on the torch base's electrode/coolant supply lead. If
nicks, cuts or holes are found, replace the torch base.
7. Remove the torch consumables from the torch head and inspect all o-rings.
Replace any o-rings with cuts, nicks, abrasions, or any other signs of wear.
Faulty o-rings may cause gas or water leaks, which will affect cut quality.
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Spirit II User's Manual
Immediately replace any