
E-3
TROUBLESHOOTING
E-3
SAE-300
®
HE
ObserveallSafetyGuidelinesdetailedthroughoutthismanual
Ifforanyreasonyoudonotunderstandthetestproceduresorareunabletoperformthetests/repairssafely,contactyour
Local Lincoln Authorized Field Service Facility
fortechnicaltroubleshootingassistancebeforeyouproceed.
CAUTION
PROBLEMS
(SYMPTOMS)
POSSIBLE AREAS OF
MISADJUSTMENTS(S)
RECOMMENDED
COURSE OF ACTION
Welder starts but fails to generate
current.
Welding arc is loud and spatters
excessively.
Welding current too great or too
small compared to indication on
thedial.
1.
Generator or exciter brushes
maybelooseormissing.
2.
Excitermaynotbeoperating.
3.
Field circuit of generator or
excitermaybeopen.
4.
Exciter may have lost excita-
tion.
5.
Series field and armature cir-
cuitmaybeopen-circuited.
1. Current setting may be too
high.
2. Polaritymaybewrong.
1. Exciter output low causing low
outputcomparedtodialindica-
tion.
2. Operatingspeedtoolowortoo
high.
3. “Current Control” shaft and
handlemayhaveturnedslight-
ly in the insulated bushing of
the current control brush hold-
er, caused by turning handle
too hard against one of the
stops.
Ifallrecommendedpossibleareasof
misadjustment have been checked
and the problem persists,
Contact
your local Lincoln Authorized
Field Service Facility.
3.Withcurrentcontrolagainstthe
minimumstop,setpointertowith-
in1/8”ofthelastscaledivision.
Содержание SAE-300 HE
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