Return to Section TOC
Return to Section TOC
Return to Section TOC
Return to Section TOC
Return to Master TOC
Return to Master TOC
Return to Master TOC
Return to Master TOC
| TROUBLESHOOTING AND REPAIR | |||||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
Troubleshooting Guide – See Wiring Diagrams for location of specified |
| Observe Safety Guidelines | ||||||||||
components and for troubleshooting of specific circuits. |
|
|
|
|
|
| detailed in the beginning of this manual. | |||||
|
|
|
|
|
|
|
|
| ||||
PROBLEMS |
| POSSIBLE AREAS OF |
|
|
| RECOMMENDED |
| |||||
(SYMPTOMS) |
| MISADJUSTMENT(S) |
|
|
| COURSE OF ACTION |
| |||||
|
|
|
|
|
|
|
|
| ||||
|
|
| OUTPUT PROBLEMS |
|
|
|
|
| ||||
Major physical or | electrical | 1. Contact | your | local | Lincoln |
| 1. Contact | Lincoln | Electric | |||
damage is evident. |
| Electric authorized field service |
| Service Department | ||||||||
|
|
| facility. |
|
|
|
|
|
|
| ||
|
|
|
| |||||||||
The machine is | 1. Make certain the input power |
| 1. Check the input power switch | |||||||||
circuit voltage and no wire feed | switch (S1) is in the “ON” |
| (S1). It may be faulty. | |||||||||
when the gun trigger is activated. | position. |
|
|
|
|
|
| 2. Check for broken or missing | ||||
The cooling fan is not running. |
|
|
|
|
|
|
| |||||
2. Check the input voltage at the |
| wires at the reconnect panel. | ||||||||||
|
|
|
| |||||||||
|
|
| machine. The input voltage |
| 3. Perform the Main Transformer | |||||||
|
|
| must match the rating plate and |
| ||||||||
|
|
| the reconnect panel. |
|
|
| Test. |
|
| |||
|
|
|
|
|
|
|
|
| ||||
|
|
| 3. Check for blown or missing |
|
|
|
| |||||
|
|
| fuses in the input lines. |
|
|
|
|
|
| |||
|
|
|
| |||||||||
There is no open circuit voltage | 1. Make sure the input voltage is |
| 1. The baffle mounted rectifier | |||||||||
or wire feed when the gun trigger | correct | and | matches | the |
| bridge may be faulty. Check | ||||||
is activated. The cooling fan is | nameplate rating and reconnect |
| and replace if necessary. | |||||||||
running. |
| panel configuration. |
|
|
| 2. Perform the Main Transformer | ||||||
|
|
|
|
|
|
|
|
|
| |||
|
|
| 2. One of the two thermostats may |
| Test. |
|
| |||||
|
|
| be open due to machine |
| 3. Check the thermostats and | |||||||
|
|
| overheating. | If the machine |
| |||||||
|
|
| operates | normally | after a |
| associated leads for loose or | |||||
|
|
|
| faulty connections. See the | ||||||||
|
|
| cooling off period then check for |
| ||||||||
|
|
|
| wiring diagram. |
| |||||||
|
|
| proper | fan | operation | and |
|
| ||||
|
|
|
|
|
|
| ||||||
|
|
| ventilation. | Make certain the |
| 4. The | internal | triggering | ||||
|
|
| machine’s | duty cycle is | not |
| circuit/plugs may be faulty. See | |||||
|
|
| being exceeded. |
|
|
| ||||||
|
|
|
|
|
| the wiring diagram. |
| |||||
|
|
|
|
|
|
|
|
|
|
| ||
|
|
|
|
|
|
|
|
|
| 5. The control board may be faulty. | ||
|
|
|
|
|
|
|
|
|
|
|
|
|
CAUTION
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact the Lincoln Electric Service Department for technical troubleshooting assistance before you proceed. Call
