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SECTION 5 − MAINTENANCE AND TROUBLESHOOTING
5-1. Routine Maintenance
n = Check
* To be done by Factory Authorized Service Agent
Every
3
Months
l Damaged Or
Unreadable Labels
Every
OR
6
Months
~ Inside Unit
5-2. Help Displays
1
AL1
5-3. Troubleshooting
Trouble
No weld output; fan does not run.
Fan does not run; weld output okay.
Erratic or improper weld output.
!
Disconnect power
before maintaining.
Z = Change
~ = Clean
l Cracked Weld cables
2
AL2
Be sure Power switch is On (see Section 4-1).
Be sure line disconnect switch is in On position.
Check and replace line fuses if open. Reset breakers if necessary.
Be sure nothing is blocking movement of fan. If fan does not run freely, replace fan motor.
Clean and tighten all weld cable connections.
Check for proper size and type of cable (see Section 3-6).
Check for proper input and output connections (see Sections 3-6 and/or 3-12).
Replace electrode.
l = Replace
~n Weld Connections
3
AL3
Remedy
1
AL1 Display
2
AL2 Display
3
AL3 Display
.
Power On pilot light flashes
when any of these help displays
are shown.
Displays indicate a malfunction in the
primary power circuit (loss of input
power phase). If any of these displays
are shown, check input power con-
nections. If trouble continues, contact
a Factory Authorized Service Agent.
OM-236 031 Page 17
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