Lincoln Electric FineLine 300HD Operator's Manual page 91

BK8053-000107 Rev D
6.1.3 Arc Start Console (ASC)
Open the cover of the ASC and verify that all leads and hoses are tightened
securely. Only tighten the fittings enough to make a coolant or gas seal. The
fittings are subject to damage if over tightened.
Using clean, dry, compressed air (30 psi maximum), blow out all accumulated
dust inside the unit.
6.1.4 Torch, Torch Leads, and Gas Hoses
Verify that all torch lead and gas hose connections are tight and that there are
no gas or coolant leaks. Only tighten the fittings enough to make a coolant or
gas seal. The fittings are subject to damage if over tightened.
Verify that the braided shield of the torch leads is fastened securely to the
brass shield adapter that connects to the arc start console. Also, make sure
the shield adapter is secured tightly to the arc start console enclosure.
Inspect the braided shield for nicks or cuts and replace if necessary.
Remove the torch handle and verify that the connections at the torch are
tightened securely. Only tighten the fittings enough to make a coolant 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.
Make sure the torch lead insulating sleeves are positioned to properly cover
the brass torch fittings at the torch.
Inspect the outer sleeve on the torch's electrode/coolant supply lead. If nicks,
cuts or holes are found, replace the torch.
Remove the torch consumables from the torch 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 coolant leaks, which will affect cut quality.
With the electrode removed, inspect the cooling tube in the torch for damage.
If replacement is required, use an adjustable wrench on the flats to loosen and
then replace the cooling tube.
Ensure that the Quick-Disconnect Torch Head is kept free from dirt and debris
when not installed into a Quick-Disconnect Torch Base.
Wipe any excess o-ring lubricant off of the torch.
6.1.5 Work Ground
Verify that the work ground lead is securely fastened to the star ground on the
cutting table, and that the connection point is free from corrosion. Use a wire
brush to clean the connection point if necessary.
This information is subject to the controls of the Export Administration Regulations [EAR]. This information shall not be provided to
non-U.S. persons or transferred by any means to any location outside the United States contrary to the requirements of the EAR.
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FineLine 300HD Plasma System