(Stick Welding) - Craftsman 113.201170 Owner's Manual

5, To startthe actualweldingprocess,movethe
torchin smallcirclesabove theworkuntilapool
of moltenmetalis obtained.If no filler metalis
required, t he weldis madebygraduallymoving
the torch along parts to be weldedto melt
adjoiningedges progressively.Oscillationof
the torch is not required.,
6 Materialthickness,joint design and desired
weld characteristics will determinewhetheror
not filler metalmustbeaddedto theweld.Filler
metalis addedto the weld puddle,or pool of
moltenmetalmanuallyin essentially the same
manner asthatusedfor oxy-acetylene welding.
The filler rod should be held at angle of
approximately15-degreesto the work and
slowlyfed into theweldpuddlea little ata time.
Whenaddingfillermetal t o theweldpuddle, t he
torch maybe movedto the rearof the puddle
and the filler metaladded.As the filler rod is
withdrawn,the torch shouldagain be moved
forwardto the leadingedgeof the puddle.. This
alternatingmovement o f filler metalandtorch
shouldcontinuealongthe directionof theweld
untilthe job is complete
7.Allow the gasto flow for 5 or 10seconds after
welding in order to shield the hot tungsten
electrode and prevent it from becoming
oxidized(contaminated). Whenthe colorofthe
tungstenelectrode goes"black"the gasmaybe
turnedoff.
Precautions To Prevent Overheating of AC Welders
When GTAW welding with an Arc Stabilizer
attachment and AC welding current, rectification
occurs in the arc and causes the transformer core to
saturate.. As a result, the input current to the welder
at any given tap or setting increases above the
current drawn by the welder when using
conventional stick electrode& This increase in
current may cause fuses to blow orcircuit-breakers
to open, but more importantly it causes the
transformer winding to overheat unless the duty
cycle is reduced. Consequently, the welding "on"
time (welding time) must be reduced below that
which is used when welding with convential stick
electrodes Therefore, unless the welder is an
industrial machine with a 50% or 60% duty cycle or
higher, the duty cycle of the welder used must be
(1) DEVELOP THE PUDDLE _=__
DIRECTION _"""-_
OF WELD _ /WORK PIECE
_///!//!1/1t/////!//!//'////222///,2y//,4
{2) MOVE TORCH B AI/ .
__S
ADDITION OF
f__/'J"_////////d FILLER METAL
(VERTICAL POS|TION}
reduced in accordance with the welder
manufacturer's instructions when using the Arc
Stabilizer° In any case, the duty cycle of the Arc
Stabilizer must not be exceeded.
WELDING WITH "CONVENTIONAL
ELECTRODES
Some of the harder to weld electrodes such as low
hydrogen and stainless steel can be handled with
comparative ease by welding with the High
Frequency Arc Stabilizer_ A conventional electrode
holder is used instead of the GTAW torch as shown
in the "Installation" section of this manual..
When the welder and Arc Stabilizer are turned "on",
a light scratch of the electrode against the work will
establish the arc The high frequency current will
stabilize the arc against "pop-outs" The Arc
Stabilizer may be left in the welding circuit when
welding with conventional electrodes without
turning the Arc Stabilizer "ON". However, the rated
current and duty cycle of the Arc Stabilizer must not
be exceeded
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