
GLW-180H  —TROUBLESHOOTING  (GENERATOR)
TABLE 8. GENERATOR TROUBLESHOOTING (CONTINUED)
SYMPTOM | POSSIBLE PROBLEM  | SOLUTION  | |
  | 
  | 
  | |
  | Defective rotor windings?  | Check or replace rotor.  | |
  | 
  | 
  | |
Does not decelerate no  | Defective solenoid?  | Check or replace solenoid.  | |
  | 
  | ||
"VOLTAGE OUTPUT". | Defective idle control device?  | Check or replace idle control device.  | |
  | |||
  | 
  | 
  | |
  | Defective solenoid?  | Check or replace idle control device.  | |
  | 
  | 
  | |
  | Control box wiring malfunction?  | Check control box wiring, replace any defective components.  | |
Does not decelerate but has  | 
  | 
  | |
Defective solenoid?  | Check or replace solenoid.  | ||
"VOLTAGE OUTPUT".  | |||
  | 
  | ||
  | Idle control device malfunction?  | Check or replace idle control device.  | |
  | 
  | 
  | 
Practically most welder breakdowns can be prevented by proper handling and maintenance inspections, but in the event of a breakdown, please take a remedial action following the
diagnosis based on the Welder Troubleshooting (Table 9) information shown below . If the problem cannot be remedied, please leave the unit just as it is and consult our company's business office or service plant.
TABLE 9. WELDER TROUBLESHOOTING
SYMPTOM | POSSIBLE PROBLEM  | SOLUTION  | |
  | 
  | 
  | |
  | Loose or disconnected wires?  | Visually check wires, replace if necessary.  | |
  | 
  | 
  | |
  | Defective generator?  | Check generator, replace if necessary.  | |
  | 
  | 
  | |
No "ARCING"  | Poor contactor contact?  | Pull the lead wire and check for connection.  | |
  | 
  | ||
Defective rectifer Re4 or Re5?  | Replace rectifer.  | ||
  | |||
  | 
  | 
  | |
  | Defective exciter Field Assy?  | Replace Field Assy.  | |
  | 
  | 
  | |
  | Defective rectifer Re1 or Re2?  | Replace rectifer.  | |
  | 
  | 
  | |
  | Improper engine speed?  | Adjust engine speed.  | |
Weak "ARCHING" and low  | 
  | 
  | |
Improper welding cable?  | Use welding cables with sufficient current capacity and length.  | ||
outout voltage.  | |||
  | 
  | ||
  | Improper current control?  | Readjust to   | |
  | 
  | 
  | 
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