Lincoln Electric PIPELINER IM769 - Manual (Page 22)

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.
E-3 TROUBLESHOOTING E-3
PIPELINER 200D
Observe all Safety Guidelines detailed throug out this manual
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.
CAUTION
PROBLEMS
PROBLEMS
(SYMPTOMS)
POSSIBLE AREAS OF
MISADJUSTMENTS
RECOMMENDED
COURSE OF ACTION
Welding current too great or too
small compared to indication on the
dial.
Arc continuously pops out.
1. Exciter output low causing low
output compared to dial indica-
tion.
2. Operating speed too low or high.
1. “ Current Range Selector ” switch
may be set at an intermediate
position.
If all recommended possible areas
of misadjustment have been
checked and the problem persists,
Contact your local Lincoln
Authorized Field Service Facility.
JULY97