Craftsman 113.201892 Owner's Manual page 15

Ac 230 amp/dc 140 amp triple range arc welder
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CURRENTTOO LOW
Arc is difficult to maintain,
Very fittte penetration. High
bead.
TRAVELTOO FAST
Small bead undercut in
some pisces. Rough top
and little penetration.
CURRENTTOO NIGH
Wide thin bead, undercut.
Crater pointed and long.
Rod burns off very fasL
ARC TOO LONG
Surface of
weld
rough,
Rod melts off in globules,
Arc makes hissing sound,
TRAVELTOO SLOW
Metal piles up, making a
wide heavy bead, over-
lapped at sides in places.
NORMALCONDITIONS
Uniform ripples on surface
of weld. Arc makes steady
crackling sound.
Figure
9
Practice
laying
beads
approximately
one inch apart
until
a good
wetd
can
be produced
with afl the different
rod
sizes the welder
will handJe (fig.
7). After
becoming
pro-
ficient
in running
o bead,
build up a pad of weld
metal.
Clean
each
bead
before
laying
the
next and
make
sure
they
are fused together
(fig.
8). Run the second
layer
at
right angles
to the first and the third at right
angles
to the
second, etc., until a pad approximately
1/2-inch
thick has
been
built up. This type
of welding
is used to
build
up
round or fiat surfaces or reinforce parts that are rusted
thin.
To avoid distortion when building
up the end of a shaft,
run the beads parallel to the axis and lay each successive
bead on the opposite side as shown by the numbered steps
in figure 10. Cover the entire shaft with weld metal for
the desired length. If the place to be welded is not at the
end of the shaft, weld around it and turn the shaft slowly
to keep the weld puddle in the flat position _fig. 1t). Clean
off the stag after each bead, then machine the shaft to
proper size.
®
®
/i, ,,,,, ,,
Figure !0
ell_l,
1-7

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