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SECTION 5 MAINTENANCE
5.0 MAINTENANCE
5.1 MAINTENANCE AND SERVICE
Shut OFF shielding gas supply at source.
5.2 INSPECTION AND SERVICE
Keep equipment in clean and safe operating condition free of oil, grease, and (in electrical part) liquid and metallic particles
which can cause short circuits.
Regularly check cylinder valves, regulators, hoses, and gas connections for leaks with soap solution or leak test solution
(P/N 998771).
Check for and tighten loose hardware including elec trical connections. Loose power connections overheat during weld-
ing.
Immediately replace all worn or damaged power cables and connectors. Check for frayed and cracked insu lation, particularly
in areas where conductors enter equipment.
The electrode wire and all metal parts in contact with it are electrically energized while welding. Inspect these parts periodi-
cally for defective insulation and other electrical hazards.
Keep power cables dry, free of oil and grease, and protected at all times from damage by hot metal and sparks.
Clean dirt and metal particles from drive roll groove weekly; replace roll if badly worn.
WARNING
WARNING
WARNING
IF UNINSULATED CABLE AND PARTS ARE NOT REPLACED, AN ARC CAUSED BY A BARE
CABLE OR PART TOUCHING A GROUNDED SURFACE MAY DAMAGE UNPROTECTED
EYES OR START A FIRE. BODY CONTACT WITH A BARE CABLE, CONNECTOR, OR UN-
COVERED CONDUCTOR CAN CAUSE A FATAL SHOCK.
INSPECTION, TROUBLESHOOTING AND REPAIR OF THIS EQUIPMENT MAY ORDINAR-
ILY BE UN DERTAKEN BY A COMPETENT INDIVIDUAL HAV ING AT LEAST GENERAL
EXPERIENCE IN THE MAINTENANCE AND REPAIR OF SEMI-CONDUC TOR ELECTRONIC
EQUIPMENT. MAINTENANCE OR REPAIR SHOULD NOT BE UNDERTAKEN BY ANYONE
NOT HAVING SUCH QUALIFICATIONS.
BE SURE THAT THE BRANCH CIRCUIT OR MAIN DISCONNECT SWITCH AND MULTIMAS-
TER POWER SWITCH ARE OFF OR ELECTRICAL INPUT FUSES ARE REMOVED BEFORE
ATTEMPT ING ANY INSPECTION OR WORK INSIDE THE POWER SOURCE. PLACING THE
POWER SWITCH ON THE POWER SOURCE IN THE OFF POSITION DOES NOT REMOVE
ALL POWER FROM INSIDE THE EQUIPMENT.
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