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This welder has been engineered to need minimal service providing that a few very simple steps are taken
to properly maintain it.
1. Keep the wire drive compartment lid closed at all times unless the wire needs to be changed or
the drive tension needs adjusting.
2. Keep all consumables (contact tips, nozzles, and gun liner) clean and replace when necessary.
See CONSUMABLE MAINTENANCE and TROUBLESHOOTING later in this section for
detailed information.
3. Replace power cord, ground cable, ground clamp, or gun assembly when damaged or worn.
4. Periodically clean dust, dirt, grease, etc. from your welder. Every six months or as necessary,
remove the side panels from the welder and air-blow any dust and dirt that may have
accumulated inside the welder.
WARNING:
ELECTRIC SHOCK CAN KILL! To reduce the risk of electric shock, always unplug
the welder from its AC power source before removing side panels.
IT IS VERY IMPORTANT TO MAINTAIN THE CONSUMABLES TO AVOID THE NEED FOR
PREMATURE REPLACEMENT OF THE GUN ASSEMBLY.
MAINTAINING THE CONTACT TIP
The purpose of the CONTACT TIP is to transfer welding current to the welding wire while allowing the wire
to pass through it smoothly.
Always use a contact tip stamped with the same diameter as the wire it will be used with. NOTE: Due to
inherent variances in flux-cored welding wire, it may be necessary to use a contact tip one size larger
than your flux core wire if wire jams occur.
1. If the wire burns back into the tip remove the tip from the gun and clean the hole running
through it with an oxygen-acetylene torch tip cleaner or tip drill.
2. With extended use over time, this hole will become more worn. The added wear on the hole
causes resistance in the welding current transferred from the contact tip to the wire. This will
result in less stable arc characteristics and difficult arc starting.
CAUTION:
KEEP THE NOZZLE CLEAN!
During the welding process, spatter and slag will build up inside the nozzle and must be cleaned
out periodically. Failure to clean and/or replace the nozzle in a timely fashion will cause damage
to the front end of the gun assembly, which is not replaceable. The results of the inaction will
require the replacement of the entire gun assembly.
1. If the wire burns back into the tip remove the tip from the gun and clean the hole running
through it with an oxygen-acetylene torch tip cleaner or tip drill.
2. With extended use over time, this hole will become more worn. The added wear on the hole
causes resistance in the welding current transferred from the contact tip to the wire. This will
result in less stable arc characteristics and difficult arc starting.
Failure to keep the nozzle adequately cleaned can result in the following problems:
Maintenance
General Maintenance
Consumable Maintenance
Summary of Contents for 125 FC
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