Miller GA-17C Owner`s manual

October 1993
Form: OM-1028C
Effective With Style No. KB-18
OWNER’S
MANUAL
GA-17C
Air-Cooled Gun For GMAW Welding
Rated At 170 Amperes, 60% Duty Cycle Using CO2 Shielding Gas
Feeds .023 Thru .035 in (0.6 Thru 0.9 mm) Hard Or Flux Cored Wires
Read and follow these instructions and all
safety blocks carefully.
cover 7/93 – ST-135 050
Give this manual to the operator.
Have only trained and qualified persons
install, operate, or service this unit.
For help, call your distributor
Call your distributor if you do not understand
the directions.
or: MILLER Electric Mfg. Co., P.O. Box 1079,
Appleton, WI 54912
414-734-9821
 1993 MILLER Electric Mfg. Co.
PRINTED IN USA
From Miller to You
Thank you and congratulations on choosing Miller. Now
you can get the job done and get it done right. We know
you don’t have time to do it any other way.
That’s why when Niels Miller first started building arc
welders in 1929, he made sure his products offered
long-lasting value and superior quality. Like you, his
customers couldn’t afford anything less. Miller products
had to be more than the best they could be. They had to
be the best you could buy.
Today, the people that build and sell Miller products continue the
tradition. They’re just as committed to providing equipment and service
that meets the high standards of quality and value established in 1929.
This Owner’s Manual is designed to help you get the most out of your
Miller products. Please take time to read the Safety precautions. They will
help you protect yourself against potential hazards on the worksite. We’ve
made installation and operation quick and easy.
With Miller you can count on years of reliable
service with proper maintenance. And if for
some reason the unit needs repair, there’s a
Troubleshooting section that will help you
Miller is the first welding figure out what the problem is. The parts list
equipment manufacturer in will then help you to decide which exact part
the U.S.A. to be registered to
the ISO 9001 Quality System you may need to fix the problem. Warranty and
Standard.
service information for your particular model
are also provided.
Miller Electric manufactures a full line
of welders and welding related equipment.
For information on other quality Miller
products, contact your local Miller distributor
to receive the latest full line catalog or
individual catalog sheets. To locate your nearest
distributor or service agency call 1-800-4-A-Miller,
or visit us at www.MillerWelds.com on the web.
Working as hard as you do
– every power source from
Miller is backed by the most
hassle-free warranty in the
business.
Miller offers a Technical
Manual which provides
more detailed service and
parts information for your
unit. To obtain a Technical
Manual, contact your local
distributor. Your distributor
can also supply you with
Welding Process Manuals
such as SMAW, GTAW,
GMAW, and GMAW-P.
SAFETY PRECAUTIONS FOR GMAW GUNS
WARNING
GMAW 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 wire feeder
and welding power source Owner’s Manuals. Read and follow all safety precautions.
HAVE ALL INSTALLATION, OPERATION, MAINTENANCE, AND REPAIR WORK PERFORMED ONLY BY
QUALIFIED PEOPLE.
ELECTRIC SHOCK can kill.
1.
2.
3.
4.
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
gun or cable insulation.
5. Turn off welding power source before changing
contact tip or gun parts.
6. Keep all covers and handle securely in place.
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
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.
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 with spatter-resistant
clothing.
HOT SURFACES can burn skin.
1. Allow gun 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.
WELDING WIRE can cause puncture
wounds.
1. Keep hands and body away from gun tip when
trigger is pressed.
EMF INFORMATION
NOTE
Considerations About Welding 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.
mod10.1 4/93
sr7 7/93
SECTION 1 – SAFETY INFORMATION
mod1.1 2/93
Read all safety messages throughout this manual.
Obey all safety messages to avoid injury.
Learn the meaning of WARNING and CAUTION.
1
2
2
WARNING
MOVING PARTS can injure.
• Do not touch live electrical parts.
• Disconnect input power before
• Keep away from moving parts.
• Keep all panels and covers closed
4
installing or servicing.
Safety Alert Symbol
2
Signal Word
WARNING means possible death
or serious injury can happen.
CAUTION
3
ELECTRIC SHOCK can kill.
1
when operating.
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
5
READ SAFETY BLOCKS at start of
Section 3-1 before proceeding.
WARNING
6
Read safety blocks for each symbol shown.
7
NOTE
7
NOTE
Special instructions for best operation – not related to safety.
Turn Off switch when using high frequency.
Figure 1-1. Safety Information
SECTION 2 – SPECIFICATIONS
Table 2-1. Welding Gun
Specifications
Description
Rated Output
170 Amperes Using CO2 Shielding Gas – Air-Cooled
Duty Cycle
See Figure 2-1
Wire Diameter
.023 Thru .035 in (0.6 Thru 0.9 mm) Hard Or Flux Cored Wires
Weight
10 ft Gun – Net: 3.5 lb (1.6 kg); Ship: 6 lb (2.7 kg)
12 ft Gun – Net: 4 lb (1.8 kg); Ship: 6.5 lb (3 kg)
15 ft Gun – Net: 4.5 lb (2 kg); Ship: 7 lb (3.2 kg)
CAUTION
USING GUN BEYOND DUTY CYCLE RATING can damage gun and void warranty.
•
•
Do not use gun beyond 170 amperes at 60% duty cycle when using CO2 shielding gas.
Use gun at 30% duty cycle when using mixed shielding gas.
wfwarn8.1 10/91
Definition: Duty Cycle is percentage of 10 minutes that gun can weld at rated load without overheating.
Gun Duty Cycle Using CO2 Gas: 60%
6 Minutes Welding
Gun Duty Cycle Using Mixed Gases: 30%
4 Minutes Resting
3 Minutes Welding
7 Minutes Resting
S-0834
Figure 2-1. Duty Cycle
OM-1028 Page 1
SECTION 3 – INSTALLATION
3-1. Preparing And Installing Gun
1
Drive Assembly
2
Gun Securing Knob
3
Gun End
Loosen securing knob. Insert gun
end through opening until it bottoms
against drive assembly. Tighten
knob.
4
Gun Trigger Plug
Insert into receptacle and tighten
threaded collar.
2
Close door.
3
See wire feeder manual for threading procedure.
1
4
Ref. ST-149 629-C
Figure 3-1. Installing Gun
SECTION 4 – OPERATION
READ SAFETY BLOCKS at beginning
of manual before proceeding.
WARNING
4-1. Operating The Gun
1
Trigger Switch
When pressed, energized wire
feeds and shielding gas flows.
1
Ref. ST-150 093
Figure 4-1. Using Gun Switch
OM-1028 Page 2
SECTION 5 – MAINTENANCE & TROUBLESHOOTING
READ SAFETY BLOCKS at beginning
of manual before proceeding.
WARNING
5-1. Maintenance And Troubleshooting
Turn Off all power before
maintaining.
3 Months
Each Spool Of Wire
Replace
Cracked
Parts
Blow Out
Gun
Casing
See
Section
5-2
––
Control Cord
Clean
Nozzle
And Check
Contact Tip
––
Gas Hose
Gun Cable
Figure 5-1. Routine Maintenance
Table 5-1. Troubleshooting
Trouble
Remedy
Wire does not feed.
Check contact tip. Check for kinks in gun cable. Check trigger connection at
welding power source/wire feeder. Have nearest Factory Authorized Service
Station/Service Distributor check gun trigger switch.
Wire is not energized.
Check contact tip. Check trigger connection at welding power source/wire feeder. Have nearest Factory Authorized Service Station/Service Distributor check
gun trigger switch.
Wire feeds unevenly.
Check contact tip. Check for kinks in gun cable. Blow out liner and gun casing.
5-2. Changing Contact Tip And Liner
Turn off welding power source/wire
feeder. Cut off wire at nozzle.
3
2
1
Nozzle
2
Contact Tip
3
Contact Tip Adapter
1
Tools Needed:
Ref. ST-149 326-A
Figure 5-2. Changing Contact Tip
OM-1028 Page 3
CAUTION
FLYING METAL CHIPS AND DIRT can cause injury and damage equipment.
•
Point gun away from people and in a safe direction when blowing out with compressed air.
Turn off welding power
source/wire feeder.
Loosen setscrew.
5/64 in
Head Tube
3/8 in
Remove nozzle,
contact tip, adapter,
and wire outlet guide.
3/8 in
Remove liner.
To Reassemble Gun:
Blow out
gun casing.
Insert new liner.
Hand tighten guide onto liner. Tighten 2 full turns more using wrench.
Cut liner off 3/8 in (9.5 mm) from
head tube.
Tighten setscrew.
Tools Needed:
5/64 in
Install adapter, contact tip and
nozzle.
3/8 in
ST-124 473-E / ST-150 439-A
Figure 5-3. Changing Liner
OM-1028 Page 4
SECTION 6 – PARTS LIST
Item
No.
Part
No.
Description
Quantity
Figure 6-1. GA-17C Gun
.. 1 ...
.. 2 ...
.. 3 ...
.. 3 ...
.. 3 ...
.. 4 ...
.. 5 ...
.. 6 ...
.. 7 ...
.. 8 ...
.. 9 ...
. . 10 . .
. . 11 . .
. . 12 . .
. . 13 . .
. . 12 . .
. . 13 . .
. . 14 . .
. . 14 . .
. . 14 . .
. . 15 . .
. . 16 . .
. . 17 . .
........
. . 18 . .
. . 19 . .
089 885
118 267
087 299
000 067
000 068
128 535
089 902
120 164
124 697
128 758
133 147
602 173
073 984
129 178
128 769
129 179
120 995
152 691
152 692
152 690
154 731
079 974
079 878
079 535
048 834
604 525
. . TUBING, nprn .375 ID x .062 wall (order by ft) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . ADAPTER, contact tube . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . TUBE, cont scr .023 wire x 1.125 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . TUBE, cont scr .030 wire x 1.125 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . TUBE, cont scr .035 wire x 1.125 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . NOZZLE, slip type .545 orf . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . TERMINAL, rcpt skt 20-24 wire insulated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . TRIGGER, switch assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . HANDLE, gun (consisting of) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . RING, locking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . STRAIN RELIEF, cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . SCREW, set stl sch 10-32 x .250 cup point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . SPLICE, butt 22-16 wire plasti-grip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . KIT, liner monocoil .023/.025 wire (consisting of) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . GUIDE, wire outlet .023 wire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . KIT, liner monocoil .030-.035 wire (consisting of) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . GUIDE, wire outlet .030-.045 wire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . CABLE/CONDUIT, 10ft (consisting of) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . CABLE/CONDUIT, 12ft (consisting of) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . CABLE/CONDUIT, 15ft (consisting of) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . SCREW, set stl sch 10-24 x .312 cup point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . O-RING, .500 ID x .103CS rbr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . HOUSING PLUG & PINS, (consisting of) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . TERMINAL, male 1 pin 18-14 wire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . CLAMP, cable strain relief sz 11 .329 max cable OD . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . CABLE, port No. 18 2/c (order by ft) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1ft
1
2
2
2
1
2
1
1
1
1
1
2
1
1
1
1
1
1
1
1
2
1
4
1
2ft
4
3
2
Optional Nozzles
1
5
128 536
Spot, inside corner
128 537
Spot, outside corner
128 538
Spot, stud
130 402
Spot, flat
6
15
12
13
11
7
7
10
Includes
Item 15
8
16
9
14
18
17
19
Ref. SC-124 605-G
Figure 6-1. GA-17C Gun
BE SURE TO PROVIDE MODEL AND SERIAL NUMBER WHEN ORDERING REPLACEMENT PARTS.
OM-1028 Page 5
Notes
Effective January 1, 2000
(Equipment with a serial number preface of “LA” or newer)
This limited warranty supersedes all previous Miller warranties and is exclusive with no other
guarantees or warranties expressed or implied.
Warranty Questions?
Call
1-800-4-A-MILLER
for your local
Miller distributor.
Your distributor also gives
you ...
Service
You always get the fast,
reliable response you
need. Most replacement
parts can be in your
hands in 24 hours.
Support
Need fast answers to the
tough welding questions?
Contact your distributor.
The expertise of the
distributor and Miller is
there to help you, every
step of the way.
*
LIMITED WARRANTY – Subject to the terms and conditions
below, Miller Electric Mfg. Co., Appleton, Wisconsin, warrants
to its original retail purchaser that new Miller equipment sold
after the effective date of this limited warranty is free of defects
in material and workmanship at the time it is shipped by Miller.
THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER
WARRANTIES, EXPRESS OR IMPLIED, INCLUDING THE
WARRANTIES OF MERCHANTABILITY AND FITNESS.
Within the warranty periods listed below, Miller will repair or
replace any warranted parts or components that fail due to
such defects in material or workmanship. Miller must be
notified in writing within thirty (30) days of such defect or
failure, at which time Miller will provide instructions on the
warranty claim procedures to be followed.
Miller shall honor warranty claims on warranted equipment
listed below in the event of such a failure within the warranty
time periods. All warranty time periods start on the date that
the equipment was delivered to the original retail purchaser, or
one year after the equipment is sent to a North American
distributor or eighteen months after the equipment is sent to an
International distributor.
1.
5 Years Parts – 3 Years Labor
*
*
2.
3 Years — Parts and Labor
*
*
*
*
*
*
3.
Original main power rectifiers
Inverters (input and output rectifiers only)
Transformer/Rectifier Power Sources
Plasma Arc Cutting Power Sources
Semi-Automatic and Automatic Wire Feeders
Inverter Power Supplies
Intellitig
Engine Driven Welding Generators
(NOTE: Engines are warranted separately by
the engine manufacturer.)
1 Year — Parts and Labor
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
DS-2 Wire Feeder
Motor Driven Guns (w/exception of Spoolmate
185 & Spoolmate 250)
Process Controllers
Positioners and Controllers
Automatic Motion Devices
RFCS Foot Controls
Induction Heating Power Sources
Water Coolant Systems
HF Units
Grids
Maxstar 140
Spot Welders
Load Banks
Miller Cyclomatic Equipment
Running Gear/Trailers
Plasma Cutting Torches (except APT & SAF
Models)
Field Options
(NOTE: Field options are covered under True
Blue for the remaining warranty period of the
product they are installed in, or for a minimum of
one year — whichever is greater.)
4.
6 Months — Batteries
5.
90 Days — Parts
*
*
MIG Guns/TIG Torches
Induction Heating Coils and Blankets
*
*
*
*
*
APT, ZIPCUT & PLAZCUT Model Plasma Cutting
Torches
Remote Controls
Accessory Kits
Replacement Parts (No labor)
Spoolmate 185 & Spoolmate 250
Canvas Covers
Miller’s True Blue Limited Warranty shall not apply to:
1.
Consumable components; such as contact tips,
cutting nozzles, contactors, brushes, slip rings,
relays or parts that fail due to normal wear.
2.
Items furnished by Miller, but manufactured by others,
such as engines or trade accessories. These items are
covered by the manufacturer’s warranty, if any.
3.
Equipment that has been modified by any party other
than Miller, or equipment that has been improperly
installed, improperly operated or misused based upon
industry standards, or equipment which has not had
reasonable and necessary maintenance, or equipment
which has been used for operation outside of the
specifications for the equipment.
MILLER PRODUCTS ARE INTENDED FOR PURCHASE
AND USE BY COMMERCIAL/INDUSTRIAL USERS AND
PERSONS TRAINED AND EXPERIENCED IN THE USE
AND MAINTENANCE OF WELDING EQUIPMENT.
In the event of a warranty claim covered by this warranty, the
exclusive remedies shall be, at Miller’s option: (1) repair; or (2)
replacement; or, where authorized in writing by Miller in
appropriate cases, (3) the reasonable cost of repair or
replacement at an authorized Miller service station; or (4)
payment of or credit for the purchase price (less reasonable
depreciation based upon actual use) upon return of the goods
at customer’s risk and expense. Miller’s option of repair or
replacement will be F.O.B., Factory at Appleton, Wisconsin, or
F.O.B. at a Miller authorized service facility as determined by
Miller. Therefore no compensation or reimbursement for
transportation costs of any kind will be allowed.
TO THE EXTENT PERMITTED BY LAW, THE REMEDIES
PROVIDED HEREIN ARE THE SOLE AND EXCLUSIVE
REMEDIES. IN NO EVENT SHALL MILLER BE LIABLE FOR
DIRECT, INDIRECT, SPECIAL, INCIDENTAL OR
CONSEQUENTIAL DAMAGES (INCLUDING LOSS OF
PROFIT), WHETHER BASED ON CONTRACT, TORT OR
ANY OTHER LEGAL THEORY.
ANY EXPRESS WARRANTY NOT PROVIDED HEREIN
AND ANY IMPLIED WARRANTY, GUARANTY OR
REPRESENTATION AS TO PERFORMANCE, AND ANY
REMEDY FOR BREACH OF CONTRACT TORT OR ANY
OTHER LEGAL THEORY WHICH, BUT FOR THIS
PROVISION,
MIGHT
ARISE
BY
IMPLICATION,
OPERATION OF LAW, CUSTOM OF TRADE OR COURSE
OF DEALING, INCLUDING ANY IMPLIED WARRANTY OF
MERCHANTABILITY OR FITNESS FOR PARTICULAR
PURPOSE, WITH RESPECT TO ANY AND ALL
EQUIPMENT FURNISHED BY MILLER IS EXCLUDED AND
DISCLAIMED BY MILLER.
Some states in the U.S.A. do not allow limitations of how long
an implied warranty lasts, or the exclusion of incidental,
indirect, special or consequential damages, so the above
limitation or exclusion may not apply to you. This warranty
provides specific legal rights, and other rights may be
available, but may vary from state to state.
In Canada, legislation in some provinces provides for 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 out above may not apply. This Limited
Warranty provides specific legal rights, and other rights may
be available, but may vary from province to province.
miller_warr 7/00
Owner’s Record
Please complete and retain with your personal records.
Model Name
Serial/Style Number
Purchase Date
(Date which equipment was delivered to original customer.)
Distributor
Address
City
State
Zip
For Service
Call 1-800-4-A-Miller or see our website at www.MillerWelds.com
to locate a DISTRIBUTOR or SERVICE AGENCY near you.
Always provide Model Name and Serial/Style Number.
Contact your Distributor for:
Welding Supplies and Consumables
Options and Accessories
Personal Safety Equipment
Service and Repair
Miller Electric Mfg. Co.
An Illinois Tool Works Company
1635 West Spencer Street
Appleton, WI 54914 USA
Replacement Parts
Training (Schools, Videos, Books)
International Headquarters–USA
USA Phone: 920-735-4505 Auto-Attended
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International FAX: 920-735-4125
Technical Manuals (Servicing Information
and Parts)
Circuit Diagrams
European Headquarters –
United Kingdom
Phone: 44 (0) 1204-593493
FAX: 44 (0) 1204-598066
Welding Process Handbooks
www.MillerWelds.com
Contact the Delivering Carrier for:
File a claim for loss or damage during
shipment.
For assistance in filing or settling claims,
contact your distributor and/or equipment
manufacturer’s Transportation Department.
PRINTED IN USA
 2000 Miller Electric Mfg. Co.
6/00