PRO WELD INTERNATIONAL AG-900, Operation & Maintenance Manual

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AG-900
PRO WELD
Section 9.0
TROUBLE SHOOTING GUIDE
CAUTION:
Turn off the power when trouble shooting the control. Welding voltage can cause electric shock and
burns.
Trouble shooting should be done by qualified personnel trained to work on this type of
equipment.
PROBLEM POSSIBLE CAUSE REMEDY
Control unit cycles but gun Broken or loose control cable Check all wires for continuity
does not lift. wires. and repair.
Dirt in gun. Disassembly and clean.
Misalignment of accessories Re-align fastener in center of
i.e. legs, foot piece, grip) by loosening the screws
holding the foot and the legs.
Lift incorrectly set. Adjust lift to recommend
settings (See section “Set-up
of Weld Gun” for suggested
settings.)
Weld quality appears
Faulty or loose ground Clean area for grounding.
inconsistent from one connection. Repair or tighten clamp.
weld to the next.
Poor surface condition, Clean area at each weld.
excessive oil, grease,
rust etc.
Incorrect plunge setting. Be sure plunge is adequate
for fastener being welded.
(See section “Set-up
of Weld Gun” for suggested
settings.)
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