OM-236 031 Page 18
SECTION 5
−
MAINTENANCE AND TROUBLESHOOTING
5-1. Routine Maintenance
!
Disconnect power
before maintaining.
= Check
= Change
= Clean
= Replace
* To be done by Factory Authorized Service Agent
Every
3
Months
Damaged Or
Unreadable Labels
Cracked Weld cables
Weld Connections
Every
6
Months
OR
Inside Unit
5-2. Help Displays
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.
1
2
3
AL1
AL2
AL3
5-3. Troubleshooting
Trouble
Remedy
No weld output; fan does not run.
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.
Fan does not run; weld output okay.
Be sure nothing is blocking movement of fan. If fan does not run freely, replace fan motor.
Erratic or improper weld output.
Clean and tighten all weld cable connections.
Check for proper size and type of cable (see Section 3-8).
Check for proper input and output connections (see Sections 3-8 and/or 3-14).
Replace electrode.
Содержание STR 450
Страница 24: ...OM 236 031 Page 20 SECTION 6 ELECTRICAL DIAGRAMS Figure 6 1 Circuit Diagram For STR 450 ...
Страница 25: ...OM 236 031 Page 21 956142738 A ...
Страница 29: ...Notes Work like a Pro Pros weld and cut safely Read the safety rules at the beginning of this manual ...
Страница 30: ...Notes Work like a Pro Pros weld and cut safely Read the safety rules at the beginning of this manual ...
