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Maximum
weld
output.
--~__
Erratic
weld
output.
I-..
-.-~
3-5B
-
-
Excessive
line
current
or
line
fuse(s)
-~
opens
repeatedly.
Check
for
shorted
tan
motor
FM
leads,
and
repair
if
necessary.
-~
3-5B
3-5A
-~
--
Fan
motor
inoperative
and/or
over-
-~
heating.
Replace
fan
motor
FM,
if
necessary.
--
--
-~
--
Wandering
arc;
poor
control
of
arc
-~
direction.
Tungsten
electrode
oxidizing
and
not
-~
remaining
bright
after
conr~lusion
of
weld.
Properly
prepare
tungsten.
Low
or
minimum
weld
output.
Trouble
Remedy
1
-~
Check
for
proper
lina
voltage.
Check
for
open
line
fuse(s),
and
replace
if
necessary.
Check
and
reset
circuit
breakers.
Clean
and
tighten
all
weld
connections.
Place
Amperage
control
switch
in
the
correct
position.
Have
Factory
Authorized
Service
Station/Service
Distributor
check
control
board
PCi
and/or
hall
device
HD1.
---
--~
--~
--~
--~
Section
3-5B
3-3
Figure
4-6
Have
Factory
Authorized
Service
Station/Service
Distributor
check
Amperage
Adjustment
control,
control
board
PCi
and/or
hail
device
HD1.
Check
for
proper
input
connections.
Use
proper
size
and
type
electrode.
Check
for
proper
input
connections.
Check
for
proper
jumper
link
positions.
Check
for
fan
blade
obstruction.
Reduce
gas
flow
rata.
Select
proper
size
tungsten.
Shield
weld
zone
from
drafts.
Increase
postf
low
time.
Check
and
tighten
all
gas
fittings.
Water
in
torch.
Refer
to
torch
Owners
Manual
for
part(s)
requir
ing
replacement,
and
repair
torch
as
necessary.
--~
---
--a
OM-168
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