Tweco 6045 Excel Arc - Manual (Page 33)

SERVICE EXCEL ARC 6045
August 26, 2011 5-1 Manual 0-5213
SECTION 5:
SERVICE
5.01 General
(Also refer to Troubleshooting Sections in wire feeder and
MIG gun manuals.)
If this equipment does not operate properly, stop
work immediately and investigate the cause of the
malfunction. Maintenance work must be performed by
an experienced, qualifi ed person only. Any electrical work
must be performed by an electrician or other person
properly trained in servicing electrical equipment. Do not
permit untrained persons to inspect, clean or repair this
equipment. Use only recommended replacement parts
when servicing this machine.
!
WARNING
HIGH VOLTAGE is present internally even with
the control power switch in the OFF position.
Before inspecting, cleaning, or servicing
disconnect and lock out input power to the
power source.
5.02 Maintenance
Periodically clean the inside of the welding power source
by using a shop vacuum cleaner as normal preventive
maintenance. At the time of cleaning, a full inspection
of the welding machine and setup should be performed.
Check warning labels on the machine for readability and
replace if necessary. Check input and output connections
as well as frame ground connections to the machine to
insure that they are tight and that the wires are not frayed
or overheated. Inspect the internal wiring of the machine
for loose or frayed connections and tighten or repair as
necessary. It would also be advisable to check connections
to wire feeders, fi xtures, etc., at this time. Any damaged
cables or hoses should be replaced.
!
WARNING
ALL SERVICE SHOULD BE PERFORMED BY
TRAINED PERSONNEL ONLY.