|
| TROUBLESHOOTING |
| ||||
|
|
|
|
|
|
|
|
|
|
| Observe all Safety Guidelines detailed througout this manual | ||||
|
|
|
|
|
|
|
|
|
|
| PROBLEMS | POSSIBLE AREAS OF |
| RECOMMENDED | |
|
|
| (SYMPTOMS) | MISADJUSTMENTS(S) |
| COURSE OF ACTION | |
|
|
|
|
|
|
|
|
|
|
|
| PROBLEMS |
|
|
|
13. | Unable to strike an arc. | a. Idle speed screw is misadjusted. |
| a. Idle speed is set too low so idler | |||
|
|
|
|
|
| fails to operate when arc is | |
|
|
|
|
|
| struck. Adjust low idle speed | |
|
|
|
|
|
| screw for | |
|
|
|
|
|
|
| |
14. | Engine runs irregularly. | a. Carburetor set too lean. |
| a. Adjust carburetor adjusting screw | |||
|
|
|
|
|
| so engine will run smoothly at | |
|
|
|
| b. Carburetor Deicing Kit in wrong |
| idle speed. * | |
|
|
|
|
| b. Carburetor Deicing Kit per | ||
|
|
|
| configuration. |
| instructions on pages B2 and B3. | |
15. | Engine fails to pick up speed |
|
| a. Check the idler. |
| ||
|
| when arc is struck. |
|
|
|
| |
|
|
|
|
|
|
|
|
* |
| See engine manual. | * * Flashing the fields. |
|
|
| |
Flashing the exciter field consists of passing current through the fields using an external source of 6 to 125 volts of DC power from a storage battery or DC generator. If using a DC generator, keep the generator turned off except when actually applying the flashing current. To flash the fields:
1.Turn the welder off. Raise one exciter brush off the commutator.
2.On Lincoln welders, attach the positive lead from the external DC source to the right hand brushholder.
3.Carefully holding an insulated section of the negative lead from the DC source, touch its lug or clamp to the left hand brushholder for five seconds. Pull it away quickly to minimize arcing.
Remove the lead from the right hand brushholder, replace the brush on the commutator, start the welder and the generator voltage should build up.
CAUTION
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.
CLASSIC I
LINCOLN ®
ELECTRIC