EWM Tetrix 352 AC/DC RC Operating Instructions Manual page 41

Wire feed problems
a Unsuitable or worn welding torch equipment
#
Adjust contact tip (cold wire/hot wire) to wire diameter, blow through and replace if necessary
#
Adjust wire guide to material in use, blow through and replace if necessary
a Contact tip blocked
#
Clean, spray with anti-spatter spray and replace if necessary
a Setting the spool brake (see "Setting the spool brake" chapter)
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Check settings and correct if necessary
a Setting pressure units (see "Inching wire electrodes" chapter)
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Check settings and correct if necessary
a Worn wire rolls
#
Check and replace if necessary
a Wire feed motor without supply voltage (automatic cutout triggered by overloading)
#
Reset triggered fuse (rear of the power source) by pressing the key button
a Kinked hose packages
#
Extend and lay out the torch hose package
a Incompatible parameter settings
#
Check settings and correct if necessary
a Arc between gas nozzle and workpiece (metal vapour on the gas nozzle)
#
Replace gas nozzle
Pore formation
a Inadequate or missing gas shielding
#
Check shielding gas setting and replace shielding gas cylinder if necessary
#
Shield welding site with protective screens (draughts affect the welding result)
#
Use gas diffuser for aluminium applications and high-alloy steels
a Unsuitable or worn welding torch equipment
#
Check size of gas nozzle and replace if necessary
a Condensation (hydrogen) in the gas tube
#
Rinse hose package with gas or replace
099-000139-EW501
01.08.2011
Rectifying faults
Customer checklist
41