Replacing Consumables - Lincoln Electric FineLine 300HD Operator's Manual

BK8053-000107 Rev D

5.2 Replacing Consumables

Note: When installing the consumables, do not use an excessive amount of
o-ring lubricant. Also ensure that the lubricant is only placed on the o-rings.
Excess lubricant can interfere with gas flow, which can cause starting
problems, poor cut quality, and short consumable life.
Remove primary power to the Power Supply. For multi-torch setups, ensure
this is the Power Supply physically connected to the torch being serviced.
If applicable, remove the Quick-Disconnect Torch Head and place on a clean
work surface.
Unscrew the outer cap from the torch.
Pull the shield cap off of the retaining cap or remove it from the outer cap.
Unscrew the retaining cap from the torch.
Pull the nozzle straight out of the torch. The swirl ring will come out with the
nozzle. Do not use tools.
Separate the swirl ring and nozzle by pulling them apart. Do not use tools.
Unscrew the electrode from the torch using a 10mm, 6-point deep socket
(BK602396) and ¼" driver (BK277086).
Inspect the cooling tube in the torch for damage. If damaged, replace by
unscrewing the cooling tube using an adjustable wrench across the flats.
Inspect all consumables and o-rings for damage and excess wear. Refer to
Section 6.3. Replace with new consumables as necessary.
Apply lubricant BK716012 (or BK716012-2) to the o-ring on the electrode.
Push the electrode over the cooling tube and thread the electrode into the
torch by hand. Tighten the electrode using a 10mm, 6-point deep socket
(BK602396) and ¼" driver (BK277086).
Apply lubricant to the o-rings on the swirl ring. Press the larger end of the
swirl ring into the bottom of the nozzle until it is fully seated.
Apply lubricant to the o-rings on the nozzle. Push the nozzle/swirl ring onto
the electrode until it is fully seated. The larger nozzle o-ring will fit completely
inside the torch.
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.
DANGER
Electric Shock Can Kill.
Disconnect input power before servicing.
Do not touch electrically live parts or electrode with skin or we
clothing. Always wear dry insulating gloves.
WARNING
Hot Parts Can Burn Skin.
Do not touch hot parts with bare hands.
Always use gloves when handling the torch as it can be hot after
cutting, especially with high amperages and long cut times.
Allow cooling period before working on the torch.
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FineLine 300HD Plasma System