Rectifying Faults; Checklist For Rectifying Faults - EWM alpha Q 352 puls MM Operating Instructions Manual

7

Rectifying faults

7.1

Checklist for rectifying faults

The correct machine equipment for the material and process gas in use is a
fundamental requirement for perfect operation!
Legend
Coolant error/no coolant flowing
 Insufficient coolant flow

Check coolant level and refill if necessary
 Air in the coolant circuit

"See 7.5 Vent coolant circuit chapter"
Functional errors
 Machine control without displaying the signal lights after switching on

Phase failure > check mains connection (fuses)
 No welding performance

Phase failure > check mains connection (fuses)
 Various parameters cannot be set

Entry level is blocked, disable access lock "See 5.15 Protecting welding parameters from
unauthorised access chapter"
 Connection problems

Make control lead connections and check that they are fitted correctly.
 Insufficient coolant flow

Check coolant level and refill if necessary
Wire feed problems
 Unsuitable or worn welding torch equipment

Adjust contact tip to wire diameter and -material and replace if necessary

Adjust wire guide to material in use, blow through and replace if necessary
 Contact tip blocked

Clean, spray with anti-spatter spray and replace if necessary
 Setting the spool brake (see "Setting the spool brake" chapter)

Check settings and correct if necessary
 Setting pressure units (see "Inching wire electrodes" chapter)

Check settings and correct if necessary
 Worn wire rolls

Check and replace if necessary
 Wire feed motor without supply voltage (automatic cutout triggered by overloading)

Reset triggered fuse (rear of the power source) by pressing the key button
 Kinked hose packages

Extend and lay out the torch hose package
 Incompatible parameter settings

Check settings and correct if necessary
 Arc between gas nozzle and workpiece (metal vapour on the gas nozzle)

Replace gas nozzle
099-005366-EW501
31.07.2014
Symbol Description

Fault/Cause

Remedy
NOTE
Rectifying faults
Checklist for rectifying faults
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