Miller MTL-17 User manual

Millerfi
January
1994
Form:
OM-1563B
Effective
With
Style
No.
KB-8
OWNERS
MANUAL
MTL-1
7
Torches
~'
F'~~
r.
Read
and
follow
these
instructions
and
all
safety
blocks
carefully.

Have
only
trained and
qualified
persons
install,
operate,
or
service this
unit.

Give
this
manual
to
the
operator.
~
.

For
help,
call
your
distributor

or:
MILLER
Electric
Mfg.
Co.,
P.O.
Box
1079,
Appleton,
WI
54912
414-734-9821

Call
your
distributor
if
you
do
not
understand
the
directions.

Air-Cooled Torches For GTAW
Welding
 Rated At
150
Amperes
100%
Duty Cycle
Using
Argon
Shielding
Gas

.020
Thru
1/8 in
(0.5
Thru 3.2
mm)
Tungsten
Size
Capacity

Includes 12-1/2
Or
25
ft
(3.8
or
7.6
m)
Cable

Remote Contactor
And
Current Control
Available

Tungsten
Electrode And Some Torch
Parts
Needed
cover
7/93

ST-120
869
'
1993
MILLER
Electric
Mig.
co.
PRINTED
IN
USA

MILLERS
TRUE BLU
ETM
LIMITED
WARRANTY
Effective
January
1.1992
(Equipment
with
a
serial
number
preface
of
KC
or
newer)
This
Limited
warranty
suoersedes
all
previous
MILLER
warranties
and
is
exclusive
with
ire
other
gualantees
Or
warlantres
expressed
or
implied
:I~I
LIMITED
WARRANTY

Sub~ect
to
the
terms
and
conditions
below. MILLER Electric
MIp
Co
Appleton
Wisconsin
warrants
to its
original
retail
osrchaser
that
new
MILLER
equipment
sold alter
the
ehectine
dale
Cl this limited
warranty
is tree
Cl
de
feels
ir
m,rteriLtl
rd
wnrknrannhip
at
the
time
it
is
shipped by
MILLER THIS
WAR.
PANTS
IS
b\PPESSLX
IN
LIEU
OF
ALL
OTHER WARRANTIFS EXPRESS
OR
l,tpI
lED
INCLUDING
THE WARRANTIES OP
MERCHANTAITILITY
AND
FIT.
NESS
Within the
warrants aerinds
listed
below
MILLER
will
ypair
or
replace
any
war
ranted
parts
oi
comooirents
that
laI
due
to
such
defects
in
material
or
wprbmansnio
stIllER
must
be notified
in
writing
within
thirty
130)
days
ol such
defect
or
lailure.
at
which
me
MILLER
will
pronide
instructions
on
the
warranty
claim
procedures
to
be
tollowelt
MILLER
un.~fI
honor
wariants
claims
on warranted
eQuipment
listed
below
in
the
event
ar
such
a
Inure
withn
the
warranty
time
periods
All
warranty
time
periods
start
on
the
ante
that
the
equipment
was delisered
to
the
original
retail
purchaser
or
one veil
ahni
the
edsioment
is
sent to
the distributor
ears
Pt-tv
t
Vnii5
Lapor
2 -a-s
ii
.iint
LrtOrtr
T-arvtrrrrvr Pn1,riyr
Power
Sources
Pacr,,r
Ac
Cutto
owei
Sources
Sn
Avtcrnat~c
and
Automatic
Wire
Pneders
3
r
-rain
Pris
ano
LAPOr
5
S
FT
~
D
..ni
,,nlrtiin
On~nratcrs
n n
,~,,,-,
.~:n
ef,ltnct
vec,rrotnis cv
v
enema
-Vr--iIlactmirvt
t,rcrcr
fli
.,
on
C,snc
S
cot
cv
e.ons
Load Banks
SOY
Transcrrrers
Runnino
Gear Trailers
F.e.c
flommns
NOTE
meId
c.ptions
are
covereo
unoen
True Blue
or
the
remaining
viarranty
perod
of
the
product
they
are
installed
in
or
for
a
minimum
ol
onn
year
nhichever
is
greater
I
Months
.
Batteries
90
Days
Parts
and
Labor
taIG
OvnhiTIG
Torches

asnr,t
Cuimro
Torches
Remote
Controls
Accessory
Kits
Replacement
Parts
MILLERS
f-ire
Blue
Limited
Warranty
snaIl
not
apply
to
items
tsrnrshed
by
MILLER
but
manslactsred
by
others
ssch
as
engines
or
trade
accessories
These items
are cosered
by
the
manufacturers
warranty,
it
any
2
Consumable
components.
ssch
as
contact
tips,
cutting
noodles,
contactors
and
relaes
or
p~rt~
that
fail due
to
normal
wear
3
Eaumpment
that
has been
moditied
by
any
party
other
than
MtLLER
or
equip.
menl
that
nas
been
improperly
installed
improperly
operated Pr
misused
based
upon
industry
standards.
or
equipment
which has
npt
had reasonable
arid
necessary
maintenance,
or
edsrpment
which
has been
used
tot
oseratron
outside
o~ the
nqecrticatrons
ICr the
eqsrpmenr
MIILEP
POOUCTS
ARE
INTENDED FOR
PURCHASE AND
USE
BYCOMMEP.
CISL
t4DUSTRIAL
USES
AND
ERSONS
cOAINED AND
EXEEPiENCED
N
THy
ICE
AND
MAINTENANCE
OF
WELDING
EQUIPMENT
In
the
njent
o~
a
warranty
claim
covered
by
this
warranty
Inn
esclvsm:e
nmedies
ynaS
on
at
tILLER
S
option
Ill
repair
or
21
replacement,
or
where authorized
.0
writing
W
MILLER in
apprspria(e cases.
13)
the
reasonable cost
of
repair
or
replace
ment at
an
autaorized
MILLER
sernrce
station,
or tat
payment
of
or
credit for ne
pur
chase
price
less
reasorrabledepreciation
based
soon
actual
asel
upon
return
of the
goods
Al
csstomer
a
risk
and
espense
MILLERS
oplion
ot
epair
or
replacement
will
ye
~O
B
Pactory
at
Appleton
Wisconsin
or
P0
B
at
a
MILLER
asthonoed
ser.
ice
acmlil,
an
cntn-mmind Pu
MILLER
Thnrelorn
no
comcnnsat.on
Tr rnmmpsrse
0
i,lnspOrtatmcn
costs
of
any
~ind
will
be
sllnwed
00
F
E.,~yrtT
PEAMIOTED
Wi
0LV
cuE PE.IEDIES
500i,iDEC
FOCI,
APE
c,y
SOI,E AND
EXCLUSIVE REMEDIES
IN
NO EVENT
SALL
MILLER BE
LIABLE
OP
DIRECT
INDIRECT
SPECIAL,
INCIDENTAL OR
CONSEQUENTIAL
DAMAGPS
INCLUDING
LOSS OP
PRDFITI
WHETHER
BASED
ON
CON
TPACT TORT OR
ANY
OTHER LEGAL
THEORY
AN0
~~~ES
.TARPANTr
NOT 000VIDED
HEPEIN AND
ANV
IMPLIED
NAP.
cANT. 0~AA,. ILO
APOPESENTATION
A5
TO
EOPOAMANCE
AND
ANS
E,IED ~QP
PREACH CF COtITPACT OpT OP
ANN
OTHER
LEGAL
THEC1Pr
WHICH
BUT FOB
THIS ROVISION
MIGHT
ARISE
Es
IMPLICATION
OPERATION OP
LAW
CUSTOM
OP
TRADE
OR COURSE
OP
DEALING.
IN
CLUDING
ANY
IMPLIED
WARRANTY
OP MERCHANTABILITY
OR
PITNESS
FOR PARTICULAR PURPOSE
WITH
RESPECT
TO
ANY
AND
ALL
EQUIPMENT
FURNISHED BY MILLER IS
EXCLUDED
AND DISCLAIMED BY
MILLER
Somn
statna
n
ne
U
S
A
AP
nor
allow
limitations cI
bow
lone
an
implied
warranty
lasts
or
the
exclusion
CI
incidental
indirect,
special
or
consequential
damages.
so
the aPove
limitation
or
exclusion
may
not
apply
to
you
Thi5
warranty
provides
spe
cific
tngal
rights, and
other
rights may
be
available.
Out
may
vary
1rpm
stale
to state
In
Canada.
legislation
in
some
prosinces
prqsrdes or
certain
additional
warrantIes
or
remedies other
than
as
stated herein,
and
to
the
extent
that
they
may
not
be
waived
the
limitations
and exclusions
set
oat
abose
may
not
apply
This
Lrmrted
Warranty
provides specilrc
legal
rights
and other
rights
may
be
anarlable. but
may
-5r
l-sm
province to
ptosmece
I
RECEIVING-HANDLING
Before
unpacking
equipment,
check
carton
for
any
damage
that
may
haMe
occurred
during
shipment.
File
any
claims
for
loss
or
damage
with
the
delivering
carrier
Assistance
for
filing
or
settling
claims
may
be obtained
from
distributor
and/or
equipment
manufacturers
Transportation Department.
When
requesting
information about this
equipment,
always
provide
Model
Designation
and
Serial
or
Style
Number.
Use
the
folloWing
spaces
to
record
Model
Designation
and
Serial
or
Style
Number
of
your
unit.
The Information
is
tocafed
on
the
rating
label
or
nameplate
Model
__________
Serial
or
Style
No.
Date
of
Purchase
miller
9i93

SAFETY
PRECAUTIONS
FOR
GTAW
TORCHES
ELECTRIC SHOCK
can
kill.
1.
Always
wear
dry
insulating
gloves.
2. Insulate
yourself
from
work and
ground.
3.
Do
not
touch
live electrode
or
electrical
parts.
4.
Repair
or
replace
worn,
damaged,
or
cracked
torch
or
cable
insulation.
5.
Turn
oft
welding
power
source
before
changing
tungsten
electrode
or
torch
parts.
6.
Keep
all
covers
and
handle
securely
in
ARC RAYS
can
burn
eyes
and
skin.
1. Wear
welding
helmet
with
correct
shade
of filter.
2.
Wear
correct
eye
and
body
protection.
3.
Cover
exposed
skin.
FUMES
AND
GASES
can
be
hazardous
to
your
health.
1.
Keep
your
head
out
of
the fumes.
2.
Ventilate
area,
or use
breathing
device.
3.
Read
Material
Safety
Data Sheets
(MSDSs)
and
manufacturers instructions for material used.
WELDING
can
cause
fire
or
explosion.
1. Do not
weld
near
flammable
material.
2.
Do
not
weld
on
closed containers.
3.
Watch
for
fire;
keep
extinguisher
nearby.
HOT SURFACES
can
burn skin.
1.
Allow
torch
to
cool
before
touching.
2.
Do not
touch
hot metal.
3.
Protect
hot metal
from
contact
by
others.
NOISE
can
damage
hearing;
SOME
APPLICATIONS,
SUCH
AS
PULSING,
are
noisy.
1.
Check
for
noise
level limits
exceeding
those
specified
by
OSHA.
2.
Use
approved
ear
plugs
or
ear
muffs
if
noise
level
is
high.
3.
Warn
others
nearby
about
nos~e
hazard.
EMF
INFORMATiON
a
WARNING
GTAW
WELDING
can
be
hazardous.
PROTECT YOURSELF
AND OTHERS
FROM POSSIBLE
SERIOUS
INJURY
OR
DEATH.
KEEP CHILDREN
AWAY.
PACEMAKER WEARERS
KEEP
AWAY
UNTIL
CONSULTING
YOUR DOCTOR.
In
welding,
as
in
most
jobs,
exposure
to
certain hazards
occurs.
Welding
is
safe when
precautions
are
taken.
The
safety
information
given
below
is
only
a
summary
of the
more
complete
safety
information
found
in
the
welding
power
source
Owners Manual.
Read and follow all
safety precautions.
HAVE ALL
INSTALLATION, OPERATION, MAINTENANCE,
AND
REPAIR WORK
PERFORMED
ONLY
BY
QUALIFIED
PEOPLE
______________________________
A
NOTE
~H
Considerations
About
We/ding
And
The Effects Of
Low
Frequency
Electric
And
Magnetic
Fields
The
following
is
a
quotation
from
the
General
Conclusions
Section
of
the
U.S.
Congress,
Office
of
Technology
Assessment,
Biological
Effects
of Power
Frequency
Electric
&
Magnetic
Fields

Background
Paper,
OTA-BP-E-53
(Washington,
DC:
U.S.
Government
Printing
Office,
May
1989):. ..
there
is
now
a
very
large
volume
of
scientific
findings
based
on
experiments
at
the
cellular
level
and from studies with
animals
and
people
which
clearly
establish that
low
frequency
magnetic
fields
can
interact
with,
and
produce
changes
in,
biological
systems.
While
most
of this
work
is
of
very
high
quality,
the results
are
complex.
Current scientific
understanding
does
not
yet
allow
us
to
interpret
the
evidence
in
a
single
coherent
framework. Even
more
frustrating,
it
does
not
yet
allow
us
to
draw
definite conclusions
about
questions
of
possible
risk
or
to offer clear science-based advice
on
strategies
to
minimize
or
avoid
potential
risks.
To
reduce
magnetic
fields
in
the
workplace,
use
the
following
procedures:
1.
Keep
cables close
together
by
twisting
or
taping
them.
2.
Arrange
cables
to
one
side
and
away
from the
operator.
3.
Do
not
coil
or
drape
cables
around the
body.
4.
Keep
welding
power
source
and cables
as
far
away
as
practical.
5.
Connect
work
clamp
to
workpiece
as
close
to
the
weld
as
possible.
About
Pacemakers;
The
above
procedures
are
among
those also
normally
recommended
for
pacemaker
wearers.
Consult
your
doctor
for
complete
information.
modlo,1
4/93
5t6
7/93

TABLE
OF
CONTENTS
SECTION
1
-
SAFETY INFORMATION
.
1
SECTION
2-
SPECIFICATIONS
2-1.
Duty
Cycle
2
SECTION
3-
INSTALLATION
&
OPERATION
3-1.
Required
Torch
Parts
And
Torch
Assembly
2
3-2.
Adjusting
Flex-Lok
Head
3
3-3.
Connecting
Torch
4
SECTION
4-
MAINTENANCE
&
TROUBLESHOOTING
5
SECTION
5
TUNGSTEN
ELECTRODE
5-1.
Selecting
Tungsten
Electrode
6
5-2.
Preparing Tungsten
7
SECTION
6
PARTS
LIST
Figure
6-1.
Complete
Torch
Assembly
8
Figure
6-2. Consumable
Parts
9
Table
6-1.
Cross
Reference to
Competitive
Model
10
OM-15636

1/94

SECTION 1
-
SAFETY
INFORMATION
Figure
1-1.
Safety
Information
SECTION
2-
SPECIFICATIONS
Table
2-1.
Welding
Torch
modl.t
2.93
Specification
Description
Model
Description
MT:
Miller
Torch;
L:
Flex
Lok;
17:
150
Ampere
Rating;
V:
Gas
Valve 12:12-1/2
ft(3.8
m)
Cable;
25:
25
ft
(7.6
m)
Cable;
1:
One-Piece Cable
Example:
MTL-17-12

Miller
Torch;
Flex
Lok;
150
Ampere
Rating;
12-1/2
ft
(3.8
m);
One-Piece
Cable
Ampere
Rating
At 100%
Duty
Cycle
DCEN,
ACHF
150
Amperes
Using
Argon
Gas
Cooling
Method Air
Cooling
Tungsten
Size
Capacity
.020
Thru
1/8
in
(0.5
Thru 3.2
mm)
Options
And
Accessories
Total
Weight
.
Torch
Body
Dimensions
And
Weight
See
Rear
Cover
12-1/2
ft
(3.8
m)
Cable
25
ft
(7.6
m)
Cable
12-1/2
ft
(3.8
m)
Cable With Gas
Valve
25 ft
(7.6 m)
Cable
With Gas
Valve~
Net:
25
Ib(1.1
kg);
Ship:
3
lb
(1.4
kg)
Net:
4.5
lb(2
kg);
Ship:
5 lb
(2.3
kg)
Net: 2.5
lb(1.1
kg);
Ship:
3
lb
(1.4
kg)
Net: 5
lb(2.3
kg);
Ship:
5 lb
(2.3
kg)
Length:
8
in
(203
mm);
Handle
Diameter: 3/4
in
(19 mm)
Weight:
5.6
oz
(160 g)
Length:
8-3/4
in
(222 mm);
Handle
Diameter: 7/8
in
(23 mm);
Weight:
7.5
oz
(210 g)

Read
all
safety
messages
throughout
this
manual.

Obey
all
safety
messages
to
avoid
injury.

Learn
the
meaning
of WARNING
and
CAUTION.
1
2
\
2
\~
a
CAUTION
_______
3
_______
L
~
ELECTRIC SHOCK
can
kill.
MOVING PARTS
can
injure.
I

Do
not
touch
live
electrical
parts.
+1

Keep
away
trom
moving parts.

Disconnect
input
power
beforejj_
~

Keep
all
panels
and
covers
closed
I
installing
or
servicing.
when
operating.
I
/
5
6
a
WARNING
READ
SAFETY
BLOCKS
at start of
SectIon
3-1
before
proceeding.
1
Safety
Alert
Symbol
2
Signal
Word
WARNING
means
possible
death
or
serious
injury
can
happen.
CAUTION
means
possible
minor
injury
or
equipment
damage
can
happen.
3
Statement
Of
Hazard
And
Result
4
Safety
Instructions To
Avoid
Hazard
5
Hazard
Symbol
(If
Available)
6
Safety
Banner
Read
safety
blocks
for
each
sym
bol
shown.
7
NOTE
Special
instructions for best
oper
ation

not
related
to
safety.
H
NOTE
~
Turn
Off switch
when
using
high
frequency.
OM-1563
Page
1

2-1.
Duty
Cycle
Obtain
the
following
parts
(see
Section
6):
1
Tungsten
Electrode
(See
Section
5)
2
Cup
3
Collet
Body
4
Standard Collet
5
Reverse Collet
Reverse
collet
improves
electrical
contact
of
tungsten
electrode.
6
Power Cable
Adapter
Assembling
Torch
Body
7
Flex-Lok
Head
8 Heat
Shield
9
Backcap
(Short
Backcap
Shown)
10
0-Ring
Installing Tungsten
To
adjust
tungsten
position,
loosen
backcap.
5Keep
connections
tight.
Replace
cup,
heat
shield,
backcap,
and
0-rings
f
cracked.
Installing
Tungsten
-~
ST-800
486
Figure
3-1.
Required
Torch Parts And Torch
Assembly
a
CAUTIONS
WELDING
LONGER THAN
RATED DUTY
CYCLE
can
damage
torch and void
warranty.

Do
not
weld
at
rated load
longer
than shown below.
wfwarn8.1~ 8/93
0
Definition
Duty
Cycle
is
percentage
of 10
-
10
rated load without
overheating.
minutes
that
torch
can
weld
at
Minutes
100% D
uty
Cycle
At 150
Amperes
Using Argo
Continuous
Welding
n
Gas
sb1.5~
8/93
Figure
2-1.
Duty
Cycle
SECTION
3-
INSTALLATION
&
OPERATION
3-1.
Required
Torch Parts
And
Torch
Assembly
Required
Torch
Parts
4
3
Assembling
Torch Parts
7
3
-~
10
OR
~-
Loosen
Tighten
OM-1563
Page
2

3-2.
Adjusting
Flex-Lok
Head
CAUTION
TOOLS
can
damage
torch.

Do
not
use
hand
tools
to
adjust
torch
flex-bk
head.
Hold
stem
and
turn
head
one
lull
turn.
1
Head
Adjusting
Stem
2
Head
Turn
head and
stem
to
desired
angle.
Figure
3-2.
Adjusting
Flex-Lok
Head
ST-~42
083.A
~1~
Hold
stem and
turn
head
until
tight.
OM-1563
Page
3

3-3.
Connecting
Torch
~
~
~
READ SAFETY
BLOCKS
at
beginning
4jj~1
~
of
manual
before
proceeding.
BUILDUP
OF SHIELDING
GAS
can
harm health
or
kill.
0
Shut off
shielding
gas
supply
when
not
in
use.
warnl.1
9/91
Turn
Off
welding
power
source,
and
If
applicable.
install
high-frequency
unit,
disconnect
input
power
before
in
stalling
torch.
Obtain
the
following
hose:
Torch With
Gas
Valve
1
Gas
Hose
With
5/8-18
Right-
Hand
Fittings
Connections:
2
Regulator/Flowmeter
3
Gas
Cylinder
4
Welding
Power
Source
5
Gas
Valve
6
Torch Cable
7
Power Cable
Adapter
Connect
hose
and
cable
to
adapter
before
connecting
adapter
to
weld
output
terminal.
8
Work
Clamp
Connect
work
clamp
to
clean,
paint-
free location
on
workpiece.
as
close
to
weld
area
as
possible.
Use
wire brush
or
sandpaper
to
clean metal
at
weld
joint
area.
Operating
Torch Gas
Valve:
Valve controls
gas
preflow
and
post
flow. Preflow
aids
arc
starting.
Pre
low and
postflow
prevent
electrode
from
forming
a
black surface
(oxidizing).
Open
valve
just
before
welding.
Turn
valve clockwise 1/4
turn to
open,
and counterclockwise 1/4
turn
to
close.
________
After
welding,
leave
valve
open
about 10 seconds
for
every
100
amperes
of
weld
current.
Close
valve
when
postflow
is
finished.
3
Tools
Needed:
~
5/8,
7/8
in
sT-BOO
487
Torch Without Gas Valve
8
Figure
3-3.
Connecting
Torch
OM-1563
Page
4

SECTION
4
MAINTENANCE
&
TROUBLESHOOTING
4..
~.
~
V~
~
READSAF
of manual
ETYBLOCKSatbeginning
before
proceeding.
Figure
4-1.
Maintenance
Schedule
Table
4-1.
Troubleshooting
N
OTE
1
Before
using
troubleshooting
table,
check
selection and
preparation
of
tungsten
electrode
according
to
Section
5.
Trouble
Remedy
Lack
of high
frequency~
difficulty
in
establishing
 

~
Check
cables and
torch
for
cracks
or
bad
connections.
Be
sure
that
torch
cables
arc.
Torch
gas
valve
not
working
properly


-~
are
not
close
to
any
grounded
metal.
Repair
or
replace
necessary
parts.
Check
welding power
source
high
frequency
control.
and
if
necessary.
check
and
adjust spark
gaps.
Have
Factory
Authorized
Service
Station/Service
Distributor
check
valve.
(if applicable).
Wandering
arc

poor
control
of
direction
of
arc.
~


-..j
Reduce
gas
flow
rate.
Tungsten
electrode
oxidizing
and
not
remaining



-~
Shield
weld
zone
from
drafts.
Check
and
tighten
all
gas
fittings.
bright
after conclusion
of
weld.
Increase
postflow
time.
Check
gas
valve.
Turn
Off
all
power
before
maintaining.
~~Replace
Cracked
Parts
3-1,
3-3
Torch
Body
Gas
Hose
Torch
Cable
.
OM-1563
Page
5

SECTION
5-
TUNGSTEN ELECTRODE
mod2.
I
3/93
NOTE
~
Foradditional
information,
see
your
distributor fora
handbook
on
the Gas
Tungsten
I
Arc
Welding
(GTAW)
process.
Wear
clean
gloves
to
prevent
contamination
of
tungsten
electrode.
5-1.
Selecting
Tungsten
Electrode
Table
5-1.
Tungsten
Size
Electrode Diameter
Amperage
Range.
Gas
Type,
-
Polarity
DC

Argon

Electrode
DC

Argon

Electrode AC

Argon

Using
AC

Argon

Balanced
Negative/Straight
Polarity
Positive/Reverse
Polarity High
Frequency
Wave
Using High Freq.
Pure
Tungsten
(Green
Band)
-
.010,
Up
to
15
.
Uptol5
UptolO
.020
5-20
5-20
10-20
.040
15-80
10-60
20-30
1/16
70-150 10-20
50-100 30-80
3/32
1/8
125-225
15-30
100-160
60-130
225-360
25-40
150-210
100-180
5/32
360450
4055
200275
160:240
3/16
450-720
.
55-80
250-350
190-300
1/4
720-950
80-125
325-450
250-400
2%
Thorium
Alloyed
Tungsten
(Red Band)
010
Up
to 25
.
Up
to
20
Up
to
15
.020
15-40
.
15-35
5-20
.040
25-85
.
*
20-80 20-60
1/16
50-160
10-20
50-150 60-120
3/32
135-235
15-30
130-250
100-180
1/8
250-400
25-40
225-360
160-250
5/32
400-500 40-55
300-450 200-320
3/16
500-750
55-80 400-500 290-390
1/4
750-1000
80-125
600-800
340-525
Zirconium
Alloyed
Tungsten
(Brown Band)
.010
Upto2O
Uptol5
.020
15-35 5-20
.040

20-80 20-60
1/16
50-150
60-120
3/32

130-250 100-180
1/8
225-360
160-250
5/32
300-450
200-320
3/16

400-550 290-390
1/4
.
600-800
340-525

Typical
argon
shielding
gas
flow
rates
are
15
to
35
cfh
(cubic
feet
per
hour),
Not
Recommended.
The
figures
listed
are
intended
as a
guide
and
are
a
composite
of
recommendations
from
American
Welding
Society
(AWS)
and
electrode
manufacturers.
S-0009
OM-1563
Page
6

5-2.
Preparing Tungsten
Figure
5-1.
Preparing Tungsten
For
AC
Or DC Electrode Positive
(DCEP)
Welding
H
2-1/2
Times
Electrode Diameter
1
Tungsten
Electrode
2
Tapered
End
Grind
end
of
tungsten
on
fine
grit,
hard abrasive wheel
before
weld.
ing.
Do
notuse wheel
for other
jobs
or
tungsten
can
become contami
nated
causing
lower
weld
quaIity~
Ret
S0161
Wrong Tungsten Preparation

Wandering
Arc
Ref.
S-0162
1
Tungsten
Electrode
2 Balled
End
Ball
end
of
tungsten
before
welding
by
applying
either
an
ac
amperage
Electrode Diameter
mended for
a
given
electrode diam
P
1iI~IIE
1-1/2
Times
slightly
higher
than
what
is
recom
eter
(see
Table
5.1),
or
a
dc elec
trode
positive
amperage.
2
Ref.
S-0161
a
CAUTION
FLYING SPARKS
AND
HOT
METAL
can cause
injury
and
start
fires.

Shape
tungsten
electrode
only
on
grinder
with
proper
guards
in
a
sate
location
wearing
proper
face.
hand,
arid
body
protection.

Keep
flammables
away.
wam2.1
9/91
2
1
1
Stable Arc
V
2
FIat
Diameter
of
this
flat
amperage
capacity.
3
Grinding
Wheel
4
Straight
Ground
determines
4
Ideal
Tungsten
P
reparation

Stable
Arc
Ref. S0162
2
3
4
1
Arc Wander
2
Point
3
Grinding
Wheel
4
Radial
Ground
Figure
5-2.
Preparing Tungsten
For DC Electrode
Negative (DCEN) Welding
OM-1563
Page
7

SECTION
6-
PARTS LIST
Figure
6-1.
Complete
Torch
Assembly
Item
Stock
No. No.
Model
No.
Description
Quantity
Figure
6-1.
Complete
Torch
Assembly

OPTIONAL
BE
SURE TO
PROVIDE MODEL
AND
STYLE
NUMBER
WHEN
ORDERING
REPLACEMENT
PARTS.
Fig
6-2
4
11
Fig
6-2

Fig
6-22
16
17
18
6
SB120
867
20
1
2
3
4
.
5
118 526
. . . .
FL3L
. .
. .
116256.
..
300HS
TUNGSTEN,
electrode
(consult
your
welding
supply
distributor)
CUP,
(see
Fig
6-2)
COLLET
BODY,
(see
Fig
6-2)
3
SERIES
HEAD,
(consisting
of)
HEAT
SHIELD,
std
1
1
5
-
.119 914
-. -.
3GHS
...
HEAT
SHIELD,
small dia
gas
lens
1
5
.
6
.
7
.
.119 915
-. .
3GHSLD
..
..
116203... 01-0009
. -
.116260....
300R
HEAT
SHIELD,
large
dia
gas
lens
HEAD
ADJUSTMENT
STEM,
(consisting
of)
0-RING
1
1
1
8
9
.
9
.
..
116259.. .
-
300S
.
-.

116 258....
300M
...
COLLET,
(see
Fig
6-2)
BACKCAP,
short
(consisting
of)
BACKCAP,
medium
(consisting of)
1
1
9
.
10.
.116 257....
300L
...
.116260....
300R
BACKCAP,
long (consisting
of)
0-RING
1
1
11
.
12.
. .
116 208
..
116219...
01-0012
..
FLEX
LOC
TORCH
BODY,
w/valve
(consisting
of)
..
0-RING
1
1
13.
.
.116217...
01-0002
.. ..
0-RING
2
14
-
15.
.
-
116216....
FLHV
..
116
218...
01-0007
VALVED
HANDLE,
models w/valve
(consisting
of)
SCREW,
non-conductive
1
1
16
.
17.
..
116220...
01-0013
..
..116217...
01-0002
. .
HANDLE
ADAPTER,
models
w/valve
(consisting
of)
..
0-RING
1
1
11
.
13.
..
116 207
..116217...
01-0002
..
FLEX
LOC TORCH
BODY,
(consisting
of)
-.
0-RING
1
2
18. .118510
HANDLE 1
19. .116276
..-
1
5PCA... POWER
CABLE
ADAPTER
1
20
.
20
.
21
.
..
116 271
. -
1512PCHF
-
-.
116272..
1525PCHF
.
.
120721
HI-FLEX
POWER
CABLE,
12-1/2ft
(consisting
of)
HI-FLEX
POWER
CABLE,
25ft
(consisting
of)
RH
NUT
1
1
2
22.
.
120720
RING
NUT
2
OM-1563
Page
8

d
CONSUMABLE
PARTS
SELECTOR
Standard
LenyIh
Gas
Lens
3GL-XXX
Use
3GHS
Heat
SIseki
Stock
No
119914
Large
Diarrieler
Gas
Lens
3GLL-XXX
Use
~
Neat
Shield
Stock
No
119915
SHADED
AREAS
INDICATE
RECOMMENDED
USAGE
S-0768
(Note:
Cottet
Body
and
Gas
Cup
required
to
complete
torch).
Torches
with
high
Rex
composite
cable
also
require
a
power
cable
adapter.
0
STANDARD
LENGTH
FRONT
ENDS
Standaid
Lerryth
Collet
Body
3CBXXX
Use
300HS
Heal
Shrekt
Stock
No
116259
Standard
Collet
3C-XXX
Reverse
Collet
7C-XXX
Short
Collel
4C-XXX
Reverse
Collei
7C-XXX
Figure
6-2.
Consumable
Parts

Table 6-1.
Cross Reference To
Competitive
Model
COMPETITIVE
STOCK NO. MODEL NO.
NO.
STOCK NO.
MODEL
NO.
COMPETITIVE
NO.
116367
116368
116369
116 370
116371
116 379
116 380
116381
116382
116383
116
361
116
362
116363
116364
116365
116 347
116 348
116349
116
350
116351
116
352
116353
116354
116343
116344
3020
3C40
.
.
.
3C116
3C332
3C418
7C20
.
7C40
70116
7C332
7C418
3CB20
3CB40
3CB116
3CB332
3CB418
3C3
304
3C5
306
307
308
3C10
3C12
3C4L
3C5L
10N21
.
10N22
10N23
10N24
10N25
N/A
N/A
N/A
N/A
N/A
10N29
10N30
10N31
10N32
10N28
N/A
1
05Z43
105Z42
1 05Z44
105Z45
08N78
08N79
08N80
12N03
105Z60
119 934
119935
119 936
119937
119 902
119 903
119911
119912
119913
116
373
116
374
116375
116376
116377
116 379
116 380
116381
116
382
116383
116
355
116356
116357
116358
116359
3AG6
3AG7
3AG8
3AG11
3GLL332
3GLL418
3AG8LD
3AG1OLD
3AG12LD
4020
4C40
. .
40116
.
.
4C332
. .
4C418
..
7C20
..
7C40
. .
7C116
.
.
70332
. .
7C418
..
4CB20
.
.
4CB40
54N16
54N15
54N14
54N19
45V64
995795
57N74
53N88
53N87
N/A
.
10N22S
.
10N23S
.
10N24S
.
10N25S
..
N/A
..
N/A
. .
N/A
. .
N/A
..
N/A
..
N/A
17CB20
17CB20
17CB20
17CB20
.
116345
3C6L
12N02
116337
116346
3C7L 105Z61
116338
116330
3A4 10N50
116339
116331 3A5 10N49
116340
116332
3A6 10N48
116341
116333
3A7 10N47
116342
116334
.
-
3A8 10N46
116326
116335 3A10 10N45
116327
116336
3A12
10N44
116328
119926
3GL20 45V29
116329
119927
3GL40
45V24
116310
119928
3GL116 45V25
116311
119929
3GL332
45V26
116312
119930
3GL418
45V27
116313
119917
3CG4
54N35
116314
119918
3CG5
54N34
116315
119 919
3CG6
54N33
119
905
119
920
3CG7
54N32
119 906
119
921
3CG8
54N31
119 907
119 922
3CG11
54N35
119
908
119923
3CG12 N/A
119909
119924
30G14
N/A
119893
119925
3CG16
N/A
119894
119 932
3AG4
54N18 119 895
2AG6
53N60
119933
3AG5
54N17
119896
2AG7
53N61
4CB116
4CB332
4CB41
8
204
13N14
205
2C6
207
2C8
2010
2C3L
2C4L
2C5L
2C6L
2A4
2A5
2A6
2A7
2A8
2A10
4GL20
4GL40
4GL116
4GL332
4GL418

2AG4

2AG5
13N15
13N16
13N17
1
3N
18
13N19
796F70
796F71
796F72
796F73
13N08
13N09
13N10
13N11
1
3N
12
1
3N
13
N/A
N/A
N/A
N/A
N/A
53N58
53N59
OM-1563
Page
10

OPTIONS
AND
ACCESSORIES
For
TOTAL TIG
system,
select
one
each of
the
following
items:

Welding
power
source

TIG
torch

TIG
kit
(see
hG
kits listed
below)

Coolant
system
(it
using
water
cooled
torch)

Remote control
Note: The
other items
necessary
to
weld
are
power
source
primary
cable.
shielding
gas,
and filler metal.
KIT
FOR
MT17
and
MTL17
SERIES AIRCOOLED
TORCHES
121/2
ft.
(3.8
m)
length
(#129
590)
25 ft.
(7.6
m)
length
(#129
589)
Kit includes:

Hose
&
hardware
hookup
kit
(TH K-2)
 Consumable
accessory
kit
(TAK1)

one
backcap
and
three
sizes
(.040,
1/16,
and
3/32
in.)
of
collets,
collet
bodies,
cups,
and
2%
thoriated
tungsten

Regulator/flowmeter
(HRF2425)

Ground
cable
with
clamp.
121/2
ft.
(3.8
m)
or
25
ft.
(7.6 m)
lengths
to
match
TIG
torch
length
Note: Power
cable
adapter
105Z57
(#116 276)
must
be ordered for torches
with
onepiece composite
cable.
POWER CABLE ADAPTERS
(Required
on
torches
with
one-piece.
high-flex
cable
assembly
and
all
water-cooled
torches.)
Adapter
105Z57
Stock
No.
(#116 276)
INTERNATIONAL TIG TORCH
CONNECTOR
KIT
For
direct connection
of
onepiece
torches
or
watercooled
TIG
torches into
power
sources
with
Internationalstyle
connectors.
FUSE
BLOCK
ASSEMBLY
For
use
with
watercooled
torches.
Five fuse
links
included
Up
to
260
Amps
(#116
163)
260
to
550
Amps
(#116164)
Protects
torch
from
overheating
and
damage
if
water
is
not
circulating
or
if
torch is
run
considerably
higher
than
its
rated
capacity.
Note:
Additional
fuse links
available
in
packages
of
5
(#116 559).
CABLE
EXTENSION
BOX
For
use
with
watercooled
torches
CEB
(Nonfused)
(#120
797)
CEB
260FA
(#116 161)
(Fused
up
to
260
Amps)
CEB 550FA
(#116
162)
(260
to
550
Amps)
Allows hose and cable
assembly
to
be
extended from
the
power
source.
Available
with
or
without
fuse
protection.
All
components
are
protected
by
a
strong,
nonconductive
enclosure.
Note: Hose and
cables
from
power
source
to
CEB
box
are
not
supplied.
Use
large
diameter extension hoses and
heavy welding
cable for
optimum
performance.
RMCH14
and
RLCH14
CONTACTOR
SWITCHES
Torch
handle
with
a
builtin switch
for
remote contactor
control
of
Miller
solidstate
TIG
power
sources.
Includes 25 ft.
(7.6
m)
control cord with
14pin
plug.
RMCH14S
(Momentary)
(#129 336)
RLCH14S
(Locking)
(#129
335)
TIG HOSE
HOOK-UP KITS
(THK)
THK1
(Watercooled)
(#128
065)
THK2
(Aircooled)
(#128 066)
Provides
the
necessary
hoses
and
hardware
to
connect
either
air
or
watercooled
torches
to
a
power
source
and,
if
applicable,
water
coolant
system.
GAS
REGULATORS
With
580
CGA
inlet
connector
HRF2425
(#127
661)
This
regulator/flowmeter
has
outlet
pressure
preset
at
25
PSIG;
the
maximum
inlet
is
3000
PSIG
and
has
540
SCFH
gas
delivery.
AF1
50
(#127
662)
This
flowgauge
regulator
has
adjustable
gas
delivery
of
825
SCFH
with
argon
gas.
TIG
ACCESSORY
KITS
(TAK)
Kits include
one
backcap
and three
each
of
the
following:
collet,
collet
body,
alumina
cup,
and 2%
thoriated
tungsten
pieces.
TAK1
(#129
585)
0.40,
1/16,
and
3/32
in.
for
MT17
TIG
TORCH CABLE
COVERS
Reinforced
plastic
cable
covers
made
of
tear
and
flame
resistant
material.
A
large
and
small
cover
is
available
in
length
to
fit
121/2
ft.
and
25
ft.
(3.8
and
7.6
m)
torches.
CC12S
(#126
150)
For
121/2
ft.
(3.8
m)
torches.
Fits
Miller
TIG
Torch
models
80
Amps
through
250
Amps.
CC25S
(#126
151)
For
25
ft.
(7.6 m)
torches. Fits
Miller
TIG
Torch
models
80
Amps
through
250
Amps.
REMOTE
CONTROLS
AMTV
REMOTE
CONTACTOR
AND
CURRENT
CONTROL
(#152
608)
Linear
motion
control
fastens
to
hG
torch
handle
using
two
Velcro
straps.
The
AMTV
is
a
practical
alternative
to
a
foot
control.
Includes 28
ft.
(8.5
m)
control cord
with
14pin
plug.
RCC REMOTE
CONTACTOR
AND
CURRENT
CONTROL
RCC14
(14pin
plug)
(#151
086)
RCC5
(5pin
plug)
(#157 365)
Rotary
motion
fingertip
control
fastens
to
TIG
torch
using
two
Velcro
straps.
Includes
28
ft.
(8.5
m)
control cord.
1192
80
Amp
Torch
150
Amp
Torch
200
Amp
Torch
250/350
Amp
Torch
(#135
492)
(#135
493)
(#135
494)
(#135
495)

Miller.
OWNERS
MANUAL
~=l~
''~7
~1fJ~
~r'
~
MTL-1
7
Torches
~/J>
~
~
U
~

~
Read
and follow
these instructions and
all
safety
blocks
carefully.
Have
only
trained
and
qualified
persons
install,
operate,
or
service
this unit.
Call
your
thstributor
if
you
do
not
understand
the directions.
j-
~
I
Give
this
manual
to
the
operator.
?~i1~

U
For
help,
call
your
distributor

or:
MILLER Electric
Mfg.
Co.,
P.O.
Box
1079,
Appleton,
WI 54912
414-734-9821
January
1994
Form:
OM-1563B
Effective
With
Style
No.
KB-B
1

Air-Cooled
Torches
For GTAW
Welding

Rated At
150
Amperes
100%
Duty
Cycle
Using
Argon Shielding
Gas

.020
Thru
1/8
in
(05
Thru
3.2
mm)
Tungsten
Size
Capacity

Includes
12-1/2
Or
25 ft
(3.8
or
7.6
m)
Cable

Remote
Contactor
And
Current
Control Available

Tungsten
Electrode And Some Torch
Parts
Needed
cover
7/93
-
ST
120
869
'
1993
MILLER Electric
MIg.
c~.
PRINTED
IN
USA

u-f
MILLERS
TRUE
BLUETM
LIMITED
WARRANTY
Effective
January
1.
1992
(Equipment
with
a
serial number
preface
of
KC
or
newer)
This
umited
warranty
supersedes
alt
previous
MtLLER
warranties
and
is
erctusiue
witn
to
other
guarantees
or
warranties
esoressed or
implied
:1~.
.1
LIMITED
WARRANTr
Subtect
to
the
terms
and conditions betow
MILLER Electric
Mtg
Co
Appleton
Wisconsin,
warrants to
its
original
retail
purchaser
that
new
MILLER
eqiroment
sold atter
the
effective date
of this
limited
warranty
is
free of
de
errs
in
matnv~rl id wcrkmairnhio
at
the
tine
it
is shipped be
MILLER THIS
WAR
PANTy
IS EXPRESSLY
IN
LIEU OF
ALL
OTHER WARRANTIES
EXPRESS OR
iMPlIED
INCLUDING
THE
WARRANTIES
OF
MERCHANTAbILITY
AND
FIT.
NESS
Lrciteie the
warranty
oennds
listed
hetow
MILLER
will
-epttir
tr
replace
any
war
ranted
parts
or comoorrents
that
fail
due
to
such
defects
yr
material
or
workmanship
httIlER
must
be
notified
ie
writing
within
thirty
130)
days
of
such
defect
or
failure
at
weice
ne
MILLER
wIl
provide
resfructions
on
the
warranty
claim
procedures
to
be
i0 lIars
no
MILLER
untIl honor
warranty
claims
on
warranted
equipment
listed
below
in
the
event
dl
Such
.1
t,rilurrr
within
the
warranty
time
periods
All
warranty
time
peridds
start
on
the
date nat ne
equipment
was
delivered
to
the
original
retail
purchaser.
or
one year
after
the
equipment
is
sent
to
the distributor
5 -er
.irts
.1 Vi..iic
Labor
-,
3
i,ir
A
hut
Lacer
ranv,oivr
Piti1ier Power
Sources

Pi,ruir~,i Arc
Cuitiirq
Power Sources

Senrm.Autornasc
and
Automatic Wire
Feeders
Robots
3
2
r.-rrs
.rrts
and
Laos
S
B
F-u,.
Di.~ir
i,Vnid.nn
Generators
NOTE
v.__
.,-,,~
~ ,v.i,intvtt
iiciu~rtnlv
flu
ru
eiroiiie
.iuiic,5~.
Dr-on Guns

Scot
riders

Load
Banks

SOX Transforrrers

Rvnrrirrc
Oear.Tiiiters

Pure Oitns
NOTE
Field
cotisos
are
coueeo under
True hive
~
or
Isv
remaininq
warrants
perod
of
the
product
thny
are
installed
in
or or
a minimum
of
sure
year
whichever
is
greater
I
E
Months Batteries
90
Days
Pans
and
Labor

MID Guns
TlO
Torches

Riasma
Cutrorc
Torches
4>

Remote Controls

Accessory
Kits

Replacement
Pans
MILLER
S
Tue B1ue Limited
Warranty
snaIl
not
apply
to
Items turnrshed
by
MILLER
but
manufactured
by
others
such
as
engines
or
trade
accessories
These
items
are
covereo
by
the
manufacturers
warranty
it
any
2
Consumable
components,
suck
as
contact
tips
cutting
nozzles.
contactors
and
relays
or
pans
that
fail due
to
normal
wear
3
Equipment
that san been
modified
by
any party
other
than
MtLLER
or
equip
ment
that has
seen
imoroperlu
installed
improperly
operated
or
misused
dused
upon
industry
stanoards
or
eouipmeni
whion has
not
had
reasonable
arid
necessary
maintenance or
equipment
which
has
been used
for
operation
outside
of the
specifications
for
the
equipment
r3lLLEo
OODUCTS
uPE
INTENDEDEOR
PURCHuSE
ANDUSE
BY
COMME
CiVL
tLDUSTRIAL LISERS
AND
OERSONS TRAINED
ND 5
ERIENCED IN
THE
iieE
AND MAINTENANCE OF VJELD1NO ECUIPMENT
In
inn erect
of
a
waranty
claim
covered
by
this
warranty
the
exclusive
nmeoies
snaii cc ill
t.tILLER S
oction
Ill
repair
or
21
replacement,
or
where
authorized
in
writing
by
I.tILLER
in
appropriate
oases,
13)
the
reasonable
cost
of
repair
or
replace
ment
at
an
authorized
MILLER
service
station
or
dl
payment
slot
credit
or
tEe
pur
chase
Orion
lens
reasonable
deoreciatron
based
upon
actual
uoel
upon returns1 the
goods
at
customers
risk
and
espense
MILLER S
option
5i
reoair
or
replacement
will
be
~O P
Pactory
at
Appleton
uaisopesin
or
ED
B
at
a
MILLER
authorized
ser
vice
,tciutu
is
onlnrrniied
O~
MILLER
Therefore
no zsmpensar,on
5r
reinrsvrse
-onsoortatisn
costs
olnu-
no
wit
on
allowed
TCi
ThE
E- ENT
PEPMITTED
Pt
LAW
THE
PE-tED1ES
000ViDE:
.EAEIN
APE TFW
SOLE
AND
EXCLUSiVE AErrEDIES
iN
NO EVENT
SHALL
MILLER BE
LIABLE FOR DIRECT
INDIRECT SPECIAL. INCIDENTAL
CR
CONSEDUENTIAL
DAMAGES
INClUDING LOSS OF PROFITi WHETHER
BASED
ON
CON
TRACT
TORT
OP
ANY
OTHEO LEGAL THEORY
AN
0500000
uJAPOANT/
NOT OOVIDED HEREIN
AND
ANY
iMPLIED,jAR.
PANT
OrUVAAN QR
APA0ESEtITATION
43 TO
OE500Ri$ANCE
AND
ANY
RE3EEtir
0,00
BREuCH
OF
CONTPACT TORT QP
ANY
OTHER
LEGAL
fllEOPr i~iHICH RUT
POP THIS PROVISION MIGHT
ARISE BY
IMPLICATION.
OPERATION
OF
LAW
CuSTOM
OF
TRADE
OR
COURSE OF
DEALING,
IN
CLUDING
ANY
tMPLIED
WARRANTY
OF MERCHANTABILITY
OR
FtTNESS
FOR PARTICULAR PURPOSE,
WITH
RESPECT TO
ANY
AND
ALL
EDUIPMENT
FURNISHED BY MtLLER
IS EXCLUDED
AND
DISCLAIMED
BY
MILLER
Some
stares
n
the U
S
A
our
sot
allow limilativirs
of
hpw
long
an
implied
warranty
lasts
or
the
exclusion
of
incidental, indirect,
special
or
consequential
damages.
so
the
tissue
limitation
or
esolusrsn
may
not
apply
to
you
This
warranty
provides
spe
citic
leqal
rights,
and
other
rights
may
be
available,
but
may vary
from
state
to
state
In
Canada.
legislation
in
some
prournoen
provides for
oentamn
additional
warranties
or
remedies
steer
than
as
stated
herein,
and
to
the
eutent
that
they
may
not
be
waived
the limitations and esclusmons
set out
above
may
sot
apply
This
Limited
Warrairty
piouides
uoeoifio
legal rights
and
other
rights
may
be
available.
Put
may
vay
rum
province
to
province
t
RECEIVING-HANDLING
Before
unpacking
equipment,
check
carton
for
any
damage
that
may
have occurred
during
shipment.
File
any
claims for
loss
or
damage
with the
delivering
carrier. Assistance for
filing
or
settling
clatms
may
be obtained
from distributor and/or
equipment
manufacturers
Transportation
Department.
When
requestIng
information
about
this
equipment,
always
provide
Model
Designation
and
Serial
or
Style
Number.
Use
the
following spaces
to
record Model
Designation
and
Serial
or
Style
Number
ol
your
unit
The information is
located
on
the
rating
label
OT
nameplate
Model
__________
Serial
or
Style
No.
Date
of
Purchase
miller
9193

SAFETY
PRECAUTIONS
FOR
GTAW
TORCHES
ELECTRIC
SHOCK
can
kill.
1.
Always
wear
dry
insulating
gloves.
Insulate
yourself
from
work
and
ground.
Do
not touch
live
electrode
or
electrical
parts.
Repair
or
replace
worn,
damaged,
or
cracked
torch
or
cable
insulation.
Turn
off
welding
power
source
before
changing
tungsten
electrode
or
torch
parts.
Keep
all
covers
and
handle
securely
in
place.
Wear
welding
helmet
with
correct
shade
of
filter.
Wear
correct
eye
and
body
protection.
Cover
exposed
skin.
FUMES
AND
GASES
can
be hazardous
to
your
health.
Keep
your
head
out
of the fumes.
Ventilate
area,
or
use
breathing
device.
Read Material
Safety
Data Sheets
(MSDSs)
and
manufacturers
instructions for material
used.
WELDING
can cause
fire
or
explosion.
1.
Do
not
weld
near
flammable
material.
2.
Do
not
weld
on
closed containers.
3.
Watch for
fire;
keep extinguisher
nearby.
HOT
SURFACES
can
burn
skin.
1.
Allow
torch
to
cool
before
touching.
2.
Do
not
touch hot
metal.
3.
Protect
hot
metal
from
contact
by
others:
NOISE
can
damage
hearing;
SOME
APPLICATIONS,
SUCH
AS
PULSING,
are
noisy.
1.
Check
for
noise
level limits
exceeding
those
specified
by
OSHA.
2.
Use
approved
ear
plugs
or
ear
muffs
if
noise
level
is
high.
3.
Warn
others
nearby
about
noise
hazard.
EMF
INFORMATION
I
a
WARNING~.~
GTAW
WELDING
can
be
hazardous.
PROTECT YOURSELF
AND
OTHERS
FROM POSSIBLE SERIOUS INJURY OR DEATH. KEEP
CHILDREN
AWAY.
PACEMAKER WEARERS
KEEP
AWAY
UNTIL
CONSULTING
YOUR
DOCTOR.
In
welding,
as
in
most
jobs,
exposure
to
certain
hazards
occurs.
Welding
is safe when
precautions
are
taken.
The
safety
information
given
below
is
only
a
summary
of
the
more
complete
safety
information found
in
the
welding
power
source
Owners
Manual.
Read
and
follow
all
safety
precautions.
HAVE
ALL
INSTALLATION, OPERATION,
MAINTENANCE,
QUALIFIED PEOPLE.
_____ ________
AND
REPAIR WORK PERFORMED
ONLY
BY
A
ARC
RAYS
can
burn
eyes
and skin.
NOTE
~
I
Considerations
About
We
Magnetic
Fields
The
following
is
a
quotation
from
the
General Conclusions Section
Iding
And
The Effects Of
Low
Frequency
Electric
And
.
To
reduce
magnetic
fields
in
the
workplace,
use
the
following
of
the
U.S.
Congress,
Office
of
Technology
Assessment,
Biological
procedures:
Effects
of
Power
Frequency
Electric
&
Magnetic
Fields

Background
Paper,
OTA-BP-E-53
(Washington,
DC: U.S.
Government
Printing
Office,
May
1989):.
. .
there is
now
a
very
1.
Keep
cables
close
together
by
twisting
or
taping
them.
2.
Arrange
cables
to
one
side
and
away
from
the
operator.
large
volume
of
scientific
findings
based
on
experiments
at
the
3.
Do not
coil
or
drape
cables
around
the
body.
cellular
level
and
from
studies
with
animals and
people
which
clearly
establish
that low
frequency
magnetic
fields
can
interact
with,
and
produce
changes
in,
biological systems.
While
most
of this
work
is
4.
Keep
welding
power
source
and cables
as
far
away
as
practical.
of
very
high quality,
the
results
are
complex.
Current
scientific
understanding
does
not
yet
allow
us
to
interpret
the
evidence
in
a
5.
Connect
work
clamp
to
workpiece
as
close
to
the
weld
as
possible.
single
coherent
framework. Even
more
frustrating,
it
does not
yet
About Pacemakers:
allow
us
to~draw definite conclusions about
questions
of
possible
risk
or
to offer
clear
science-based
advice
on
strategies
to
minimize
The
above
procedures
are
among
those also
normally
recommended for
pacemaker
wearers.
Consult
your
doctor for
or
avoid
potential
risks.
complete
information.
modlO
1
4/93
sr6
7/93

TABLE
OF
CONTENTS
SECTION
1

SAFETY
INFORMATION
1
SECTION
2
SPECIFICATIONS
2-1.
DutyCycle
2
SECTION
3-INSTALLATION
&
OPERATION
3-1.
Required
Torch Parts And
Torch
Assembly
2
3-2.
Adjusting
Flex-Lok
Head
3
3-3.
Connecting
Torch
4
SECTION
4-
MAINTENANCE &
TROUBLESHOOTING
5
SECTION
5
TUNGSTEN ELECTRODE
5-1.
Selecting Tungsten
Electrode
6
5-2.
Preparing
Tungsten
7
SECTION
6-
PARTS
LIST
Figure
6-1.
Complete
Torch
Assembly
8
Figure
6-2.
Consumable Parts
9
Table
6-1.
Cross
Reference
to
Competitive
Model
10
OM-!5638

Tf94