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If
certain
problems
occur,
the
Ready
light
goes
off,
a
trouble
light
comes
on,
and
output
stops.
1
Pressure
Light
Lights
if
gas/air
pressure
is
below
40
PSI
(276
kPa).
Turn
power
Off,
and
check
for
proper
gas/air
pressure
(see
Sec
tion
3-1).
2
Cup
Light
Lights
if
shield
cup
is
loose.
Turn
power
Off,
and
check
shield
cup
connection
(see
torch
Owners
Manual).
Power
must
be
reset
whenever
the
cup
shutdown
is
activated.
Check
shield
cup
shutdown
sys
tem
once
a
week.
3
Temperature
Light
Lights
if
power
source
overheats
(see
Section
2-4).
4
Torch
Shield
Cup
Turn
Power
On
and
loosen
shield
cup.
If
shutdown
system
works
properly,
Ready
light
goes
off
and
Cup
light
comes
on.
If
not,
turn
power
Off
and
check
for
proper
gas/air
pressure
(see
Section
3-1),
blocked
or
leaking
hose,
or
loose
shield
cup
(see
torch
Owners
Manual).
If
system
works
properly,
retighten
cup
and
reset
power.
4-2.
Overload
Protection:
Trouble
Lights
&
Checking
Shield
Cup
Shutdown
System
~eo
Checking
Torch
Shield
Cup
Shutdown
System
Power
must
be
reset
whenever
the
cup
shutdown
system
is
activated.
Always
turn
Off
power
when
changing
or
checking
consumables.
Ref.
ST-181
264-Al
Ref.
ST.801
300-A
OM-182
702
Page
15