Specifications

SECTION
5-
MAINTENANCE
5-
1. INSPECTION AND
UPKEEP
Usage
and
shop
conditions will
determine
the
frequency
and
type
of maintenance.
Inspect
equipment
as
follows:
1.
Make
sure
welding
power
source
is
shut down.
2.
Inspect
gun
for broken
areas,
cracks
and loose
parts:
tighten,
repair,
and
replace
as
required.
Carefully
remove
any
weld
spatter
or
foreign
matter
6.
Blow
out
the
gun
wire
guide
liner with
compressed
air
which
may
accumulate
around the
nozzle
orifice.
Use
a
when
changing
wire. This will
remove
any
metal
chips
and
hardwood
stick,
never
a
metal tool,
dirt
that
may
have accumulated.
SECTION
6
-
TROUBLESHOOTING
The data collected
here,
discusses
some
of
the
common
problems
which
may
occur
in this
control/feeder.
The
assumption
of
this
data
is
that
a
proper
welding
condition has been
achieved
and
has
been used
until
trouble
developed.
In all
cases
of
equipment
malfunction,
the
manufacturers
recommendations should
be
strictly
adhered
to
and
followed.
If after
performing
the
following
procedures
the
trouble
is still
not
remedied,
it
is
recommended
that
a
servicemen be called.
It is
recommended
that
the circuit
diagram
be used
for
reference
during
the
troubleshooting.
TROUBLE
PROBABLE
CAUSE
REMEDY
Depressing
gun
switch
will
not
energize
control/feeder.
Electrode
wire
is
not
energized
and
shielding
gas
does
not
flow.
Power
Switch
in
wrong
position
or
defective.
,
Place
switch
to
On
position.
Replace
defective
Power
Switch.
Circuit breaker CB1
tripped.
Manually
reset circuit breaker
by
depressing
the
red
button
on
the front
panel
of the
control/feeder
labeled
RESET.
Plug
from
gun
switch
is
not
secure
in
Switch
Control
Receptacle
on
control/feeder.
Insert
plug fully
into
Switch
Control
Receptacle
and
rotate
plug
1/2
turn
clockwise.
115
volts
ac
input
plug
is
not
secure
in
receptacle,
Insert
plug
fully
into
115
vac
receptacle
and
rotate
plug
1/2
turn
clockwise.
115
volts
input
fuse(s)
Fl
or
F2
open.
Replace
fuse(s).
Wire
feeds,
shielding
gas
flows,
but
electrode wire
is
not
energized.
115
vac
Contactor
Control
plug
is
not
secure
in
contactor
receptacle
on
welding
power
source.
Insert
plug
fully
into
receptacle
end
rotate
plug
1/2
turn
clockwise.
Contactor
Control
cable leads
not
secure
on
contactor
plug
terminals.
Secure leads
to
plug
terminals.
Defect
in
welding
power
source.
See
troubleshooting
section in
welding power
source
instruction
manual.
Wire
feeds
erratically.
Pressure
on
drive
rolls
is
insufficient.
Rotate
pressure
adjustment
wing
nut clockwise
in
1/4
turn
increments
until wire
slippage
stops.
Drive
roll
is
too
large
for wire
size
being
used.
Change
to
proper
size
drive roll.
Worn
drive
roll.
Replace
drive
roll.
2.
Place
the
Power
Switch
on
the
control/feeder
in
the
Off
position
and
remove
the
115
Volts
AC
plug
from
the
source.
3.
Turn
off
all
associated
equipment.
CAUTION__j
If
welding
is
performed
in
a
confinedfailureto
turn
off
the
shielding
gas
supply
could result
in
a
buildup
of
gas
fumes,
thereby
endangering
personnel

reentering
the
welding
area.
3.
4.
Repair
or
replace,
as
required,
all
hose and
cable;
give
particular
attention
to
frayed
and cracked
insulation and
and
areas
where it
enters
equipment.
5. Remove
grease
and
grime
from
components;
moisture
from
electrical
parts
and cable.
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