Troubleshooting Guide - ESAB Powercut 650 Manuel D'instructions

SECtIoN 5

5.3 trouBlESHootINg guIDE

A.
B.
Difficult Starting.
• Change electrode
• Change nozzle
• Check for good, clean connection of work lead to workpiece
• Check air pressure (4.5-5.2 bar / 65-75 psig)
• Check torch power cable for continuity
Depress torch switch. After 2 seconds, is high frequency present?
Yes
Repair power
source
No Air
Is air hose connected?
Yes
Is air adjusted to 4.5-5.2 / 65-75 psig?
Yes
Does air come on with air check switch?
Yes
Check continuity of torch switch
OK
Repair power source
figure 5-2. Sequence of operations
No
No
No
No
117
MAINtENANCE
No
Repair/replace
high frequency
unit
Connect
Adjust
• No electrode in torch
• No valve pin in torch
• Replace electrode
• Replace valve pin
Replace torch switch