Miller XR A AND XR W GUNS Le manuel du propriétaire
- Catégorie
- Système de soudage
- Taper
- Le manuel du propriétaire
Ce manuel convient également à
XR A And XR W
(With Quick Disconnect)
™
Processes
OM-236 297H
2011−01
MIG (GMAW) Welding
File: MIG (GMAW)
Visit our website at
www.MillerWelds.com
™
Description
Semi-Automatic, Air/Water-
Cooled, MIG (GMAW) Welding
Gun
CE
200 Ampere (Air) Push-Pull Welding Gun
400 Ampere (Water) Push-Pull Welding Gun
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 specification 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.
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 figure out what the problem is. The
parts list will then help you to decide the
exact part you may need to fix the problem.
Warranty and service information for your
particular model are also provided.
Miller is the first welding
equipment manufacturer in
the U.S.A. to be registered to
the ISO 9001 Quality System
Standard.
Working as hard as you do
− every power source from
Miller is backed by the most
hassle-free warranty in the
business.
From Miller to You
Mil_Thank 2009−09
TABLE OF CONTENTS
SECTION 1 −SAFETY PRECAUTIONS FOR GMAW WELDING GUNS − READ BEFORE USING 1........
1-1. Symbol Usage 1........................................................................
1-2. Arc Welding Hazards 1..................................................................
1-3. Proposition 65 Warnings 2...............................................................
1-4. EMF Information 2......................................................................
SECTION 2 − MESURES DE SÉCURITÉ VISANT LES PISTOLETS DE SOUDAGE GMAW − À LIRE AVANT
UTILISATION 3................................................................................
2-1. Signification des symboles 3.............................................................
2-2. Dangers relatifs au soudage à l’arc 3......................................................
2-3. Proposition californienne 65 Avertissements 4...............................................
2-4. Informations relatives aux CEM 4.........................................................
SECTION 3 − DEFINITIONS 5...................................................................
3-1. WEEE Label (For Products Sold Within The EU) 5...........................................
3-2. Symbols And Definitions 5...............................................................
SECTION 4 − INTRODUCTION 6.................................................................
4-1. Gun Specifications 6....................................................................
4-2. Duty Cycle And Overheating 6............................................................
SECTION 5 − INSTALLATION 6..................................................................
5-1. Important Information Regarding CE Products (Sold Within The EU) 6...........................
5-2. Connections With A Constant Current (CC), Constant Voltage (CV) Or Constant Current/Constant
Voltage (CC/CV) Welding Power Source Having A 14-Socket Receptacle 7......................
5-3. Air-Cooled Gun Connections 8............................................................
5-4. Water-Cooled Gun Connections 9.........................................................
5-5. Millermatic 350/350P Water Cooled Gun Connections 10.......................................
5-6. Threading Welding Wire Through Millermatic 350/350P 11......................................
5-7. Threading Welding Wire Through XR-Control Feeder 12.......................................
5-8. Adjusting Tension At Feeder 13............................................................
5-9. 10-Pin Plug Information 14................................................................
5-10. Removing Top Cover Of Pistol Grip Gun 14..................................................
5-11. Threading Welding Wire Through Gun 15....................................................
SECTION 6 − OPERATION 16....................................................................
6-1. Gun Controls 16.........................................................................
6-2. Shielding Gas 16........................................................................
6-3. Sequence Of Gas Metal Arc Welding (GMAW) − Continuous Or Spot 16..........................
6-4. Coolant Supply For Water-Cooled Models Only 17............................................
SECTION 7 − MAINTENANCE & TROUBLESHOOTING 17...........................................
7-1. Replacing The Gun Liner 18...............................................................
7-2. Changing Gun Contact Tip 19.............................................................
7-3. Replacing Or Cleaning Gun Drive Roll In Pistol-Grip Guns 19...................................
7-4. Replacing Or Cleaning Gun Drive Roll Bearing In Pistol-Grip Guns 20............................
7-5. Replacing Head Tube Liner In Pistol-Grip Guns 20............................................
7-6. Removing Diffuser In Air And Water-Cooled Pistol-Grip Guns 21................................
7-7. Troubleshooting 21......................................................................
SECTION 8 − ELECTRICAL DIAGRAMS 22........................................................
SECTION 9 − PARTS LIST 24.....................................................................
SECTION 10 − PARTS LIST INCLUDING CONSUMABLES 28........................................
WARRANTY
DECLARATION OF CONFORMITY
for European Community (CE marked) products.
MILLER Electric Mfg. Co., 1635 Spencer Street, Appleton, WI 54914 U.S.A. declares that the
product(s) identified in this declaration conform to the essential requirements and provisions of
the stated Council Directive(s) and Standard(s).
Product/Apparatus Identification:
Product
Stock Number
XR15/30A W/QUICK DISCONNECT 198127, 198128
XR15/30W W/QUICK DISCONNECT 198129, 198130
Council Directives:
• 2006/95/EC Low Voltage
Standards:
• IEC 609741:2005 Arc welding equipment – Part 1: Welding power sources
• IEC 609747:2005 Arc welding equipment – Part 7: Torches
• EN 50445:2008 Product family standard to demonstrate compliance of equipment for resistance welding,
arc welding and allied processes with the basic restrictions related to human exposure to electromagnetic
fields (0 Hz – 300Hz)
Signatory:
December 16, 2010
_____________________________________ ___________________________________________
David A. Werba
Date of Declaration
MANAGER, PRODUCT DESIGN COMPLIANCE
247818A
OM-236 297 Page 1
SECTION 1 −SAFETY PRECAUTIONS FOR GMAW
WELDING GUNS − READ BEFORE USING
SR7 (MIG) 2010−03
Protect yourself and others from injury — read and follow these precautions.
1-1. Symbol Usage
DANGER! − Indicates a hazardous situation which, if
not avoided, will result in death or serious injury. The
possible hazards are shown in the adjoining symbols
or explained in the text.
Indicates a hazardous situation which, if not avoided,
could result in death or serious injury. The possible
hazards are shown in the adjoining symbols or ex-
plained in the text.
NOTICE − Indicates statements not related to personal injury.
. Indicates special instructions.
This group of symbols means Warning! Watch Out! ELECTRIC
SHOCK, MOVING PARTS, and HOT PARTS hazards. Consult sym-
bols and related instructions below for necessary actions to avoid the
hazards.
1-2. Arc Welding Hazards
The symbols shown below are used throughout this manual
to call attention to and identify possible hazards. When you
see the symbol, watch out, and follow the related instructions
to avoid the hazard. 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 Standards.
Only qualified persons should install, operate, maintain, and
repair this unit.
During operation, keep everybody, especially children, away.
ELECTRIC SHOCK can kill.
D Always wear dry insulating gloves.
D Insulate yourself from work and ground.
D Do not touch live electrode or electrical parts.
D Repair or replace worn, damaged, or cracked gun or cable insula-
tion.
D Turn off welding power source before changing contact tip or gun
parts.
D Keep all covers and handle securely in place.
D Keep your head out of the fumes.
D Ventilate area, or use breathing device.
D Read Material Safety Data Sheets (MSDSs)
and manufacturer’s instructions for material
used.
FUMES AND GASES can be hazardous.
D Do not weld near flammable material.
D Do not weld on closed containers.
D Watch for fire; keep extinguisher nearby.
WELDING can cause fire or explosion.
BUILDUP OF GAS can injure or kill.
D Shut off shielding gas supply when not in use.
D Always ventilate confined spaces or use ap-
proved air-supplied respirator.
MOVING PARTS can injure.
D Keep away from moving parts.
D Keep away from pinch points such as drive
rolls.
D Wear welding helmet with correct shade of fil-
ter.
D Wear correct eye and body protection.
D Cover exposed skin with spatter-resistant
clothing.
ARC RAYS can burn eyes and skin.
HOT PARTS can burn.
D Allow gun to cool before touching.
D Do not touch hot metal.
D Protect hot metal from contact by others.
NOISE can damage hearing.
Noise from some processes or equipment can
damage hearing.
D Check for noise level limits exceeding those
specified by OSHA.
D Use approved ear plugs or ear muffs if noise level is high.
D Warn others nearby about noise hazard.
WELDING WIRE can injure.
D Keep hands and body away from gun tip when
trigger is pressed.
READ INSTRUCTIONS.
D Read and follow all labels and the Owner’s
Manual carefully before installing, operating, or
servicing unit. Read the safety information at
the beginning of the manual and in each
section.
D Use only genuine replacement parts from the manufacturer.
D Perform maintenance and service according to the Owner’s
Manuals, industry standards, and national, state, and local
codes.
OM-236 297 Page 2
1-3. Proposition 65 Warnings
Welding or cutting equipment produces fumes or gases
which contain chemicals known to the State of California to
cause birth defects and, in some cases, cancer. (California
Health & Safety Code Section 25249.5 et seq.)
This product contains chemicals, including lead, known to
the state of California to cause cancer, birth defects, or other
reproductive harm. Wash hands after use.
1-4. EMF Information
Electric current flowing through any conductor causes localized electric
and magnetic fields (EMF). Welding current creates an EMF field
around the welding circuit and welding equipment. EMF fields may inter-
fere with some medical implants, e.g. pacemakers. Protective meas-
ures for persons wearing medical implants have to be taken. For ex-
ample, access restrictions for passers−by or individual risk assessment
for welders. All welders should use the following procedures in order to
minimize exposure to EMF fields from the welding circuit:
1. Keep cables close together by twisting or taping them, or using a
cable cover.
2. Do not place your body between welding cables. Arrange cables
to one side and away from the operator.
3. Do not coil or drape cables around your body.
4. Keep head and trunk as far away from the equipment in the
welding circuit as possible.
5. Connect work clamp to workpiece as close to the weld as
possible.
6. Do not work next to, sit or lean on the welding power source.
7. Do not weld whilst carrying the welding power source or wire
feeder.
About Implanted Medical Devices:
Implanted Medical Device wearers should consult their doctor and the
device manufacturer before performing or going near arc welding, spot
welding, gouging, plasma arc cutting, or induction heating operations.
If cleared by your doctor, then following the above procedures is recom-
mended.
OM-236 297 Page 3
SECTION 2 − MESURES DE SÉCURITÉ VISANT LES
PISTOLETS DE SOUDAGE GMAW − À LIRE AVANT
UTILISATION
SR7(MIG)_2010−03fre
Se protéger, ainsi que toute autre personne travaillant sur les lieux, contre les étincelles et le métal chaud.
2-1. Signification des symboles
DANGER! − Indique une situation dangereuse qui si on
l’évite pas peut donner la mort ou des blessures graves.
Les dangers possibles sont montrés par les symboles
joints ou sont expliqués dans le texte.
Indique une situation dangereuse qui si on l’évite pas
peut donner la mort ou des blessures graves. Les dan-
gers possibles sont montrés par les symboles joints ou
sont expliqués dans le texte.
NOTE − Indique des déclarations pas en relation avec des blessures
personnelles.
. Indique des instructions spécifiques.
Ce groupe de symboles veut dire Avertissement! Attention! DANGER
DE CHOC ELECTRIQUE, PIECES EN MOUVEMENT, et PIECES
CHAUDES. Consulter les symboles et les instructions ci-dessous y
afférant pour les actions nécessaires afin d’éviter le danger.
2-2. Dangers relatifs au soudage à l’arc
Les symboles présentés ci-après sont utilisés tout au long du
présent manuel pour attirer votre attention et identifier les ris-
ques de danger. Lorsque vous voyez un symbole, soyez vigi-
lant et suivez les directives mentionnées afin d’éviter tout
danger. Les consignes de sécurité présentées ci-après ne
font que résumer l’information contenue dans les normes de
sécurité énumérées dans le manuel d’utilisation du poste de
soudage. Veuillez lire et respecter toutes ces normes de sé-
curité.
L’installation, l’utilisation, l’entretien et les réparations ne
doivent être confiés qu’à des personnes qualifiées.
Au cours de l’utilisation, tenir toute personne à l’écart et plus
particulièrement les enfants.
UN CHOC ÉLECTRIQUE peut tuer.
D Porter toujours des gants secs et isolants.
D S’isoler de la pièce et de la terre.
D Ne jamais toucher une électrode ou des pièces
électriques sous tension.
D Réparer ou remplacer un pistolet ou la gaine d’isolement d’un
câble usée, endommagée ou fissurée.
D Mettre la soudeuse hors tension avant de remplacer un bec con-
tact ou des pièces de pistolet.
D S’assurer que tous les couvercles et poignées sont fermement
assujettis.
LES VAPEURS ET LES FUMÉES
peuvent être nocives.
D Éloigner sa tête des endroits renfermant des
vapeurs.
D Aérer la zone de travail ou porter un appareil re-
spiratoire.
D Consulter les fiches toxicologiques (MSDS) et les notices du fab-
ricant de chaque matériel utilisé.
LE SOUDAGE peut causer un incen-
die ou une explosion.
D Ne pas souder à proximité de matériaux inflam-
mables.
D Ne pas souder sur des récipients fermés.
D Prendre garde aux incendies et toujours avoir un extincteur à
proximité.
L’ACCUMULATION DE VAPEURS
peut causer des lésions ou la mort.
D Quand on n’utilise pas le gaz de protection,
fermer le robinet de la bouteille.
D Assurer toujours la ventilation des zones fer-
mées ou utiliser un appareil respiratoire avec
alimentation en air.
Les PIÈCES MOBILES peuvent
causer des blessures.
D Ne pas s’approcher des organes mobiles.
D Ne pas s’approcher des points de coincement
tels que des rouleaux de commande.
LE RAYONNEMENT DE L’ARC peut
brûler les yeux et la peau.
D Porter un casque de soudage muni d’un filtre
de protection oculaire approprié.
D Porter une protection oculaire et des vête-
ments de protection appropriés.
D Protéger la peau nue en portant des vêtements anti-éclabous-
sures.
LES PIÈCES CHAUDES peuvent
provoquer des brûlures.
D Laisser refroidir le pistolet avant de le toucher.
D Ne pas toucher d’objets métalliques chauds.
D Abriter les objets métalliques contre tout con-
tact par les personnes à proximité.
OM-236 297 Page 4
Le BRUIT peut endommager l’ouie.
Le bruit des processus et des équipements peut
affecter l’ouïe.
D Vérifier si les niveaux de bruit excèdent les lim-
ites spécifiées par l’OSHA.
D Utiliser des bouche-oreilles ou des serre-tête antibruit approuvés
si le niveau de bruit est élevé.
D Avertir les personnes à proximité au sujet du danger inhérent au
bruit.
LES FILS DE SOUDAGE peuvent
provoquer des blessures.
D Éloigner les mains et le corps de la buse du pis-
tolet après avoir appuyé sur la gâchette.
LIRE LES INSTRUCTIONS.
D Lire et appliquer les instructions sur les
étiquettes et le Mode d’emploi avant
l’installation, l’utilisation ou l’entretien de
l’appareil. Lire les informations de sécurité au
début du manuel et dans chaque section.
D N’utiliser que les pièces de rechange recommandées par le
constructeur.
D Effectuer l’entretien en respectant les manuels d’utilisation,
les normes industrielles et les codes nationaux, d’état et locaux.
2-3. Proposition californienne 65 Avertissements
Les équipements de soudage et de coupage produisent des
fumées et des gaz qui contiennent des produits chimiques
dont l’État de Californie reconnaît qu’ils provoquent des
malformations congénitales et, dans certains cas, des
cancers. (Code de santé et de sécurité de Californie, chapitre
25249.5 et suivants)
Ce produit contient des éléments chimiques, dont le plomb,
reconnus par l’État de Californie pour leur caractère
cancérogène ainsi que provoquant des malformations
congénitales ou autres problèmes de procréation. Se laver
les mains après toute manipulation.
2-4. Informations relatives aux CEM
Le courant électrique qui traverse tout conducteur génère des champs
électromagnétiques (CEM) à certains endroits. Le courant de soudage
crée un CEM autour du circuit et du matériel de soudage. Les CEM
peuvent créer des interférences avec certains implants médicaux
comme des stimulateurs cardiaques. Des mesures de protection pour
les porteurs d’implants médicaux doivent être prises: par exemple, des
restrictions d’accès pour les passants ou une évaluation individuelle
des risques pour les soudeurs. Tous les soudeurs doivent appliquer les
procédures suivantes pour minimiser l’exposition aux CEM provenant
du circuit de soudage:
1 Rassembler les câbles en les torsadant ou en les attachant avec
du ruban adhésif ou avec une housse.
2 Ne pas se tenir au milieu des câbles de soudage. Disposer les
câbles d’un côté et à distance de l’opérateur.
3 Ne pas courber et ne pas entourer les câbles autour de votre
corps.
4 Maintenir la tête et le torse aussi loin que possible du matériel du
circuit de soudage.
5 Connecter la pince sur la pièce aussi près que possible de la
soudure.
6 Ne pas travailler à proximité d’une source de soudage, ni
s’asseoir ou se pencher dessus.
7 Ne pas souder tout en portant la source de soudage ou le
dévidoir.
En ce qui concerne les implants médicaux :
Les porteurs d’implants doivent d’abord consulter leur médecin avant
de s’approcher des opérations de soudage à l’arc, de soudage par
points, de gougeage, du coupage plasma ou de chauffage par induc-
tion. Si le médecin approuve, il est recommandé de suivre les procédu-
res précédentes.
OM-236 297 Page 5
SECTION 3 − DEFINITIONS
3-1. WEEE Label (For Products Sold Within The EU)
Do not discard product (where ap-
plicable) with general waste.
Reuse or recycle Waste Electrical
and Electronic Equipment (WEEE)
by disposing at a designated collec-
tion facility.
Contact your local recycling office
or your local distributor for further
information.
3-2. Symbols And Definitions
U
1
Primary Voltage
V
Volts
I
1
Primary Current
A
Amperes
IP
Degree Of
Protection U
2
Conventional Load
Voltage I
2
Rated Welding
Current X
Duty Cycle
Percent
Notes
OM-236 297 Page 6
SECTION 4 − INTRODUCTION
4-1. Gun Specifications
Model Welding Output Range Electrode
Wire Diameter
Capacity
Wire Feed
Speed Range
Net Weight
(Torch Only)
XR-A − 15 and 30 ft
(4.6 or 9.1 m) gun
(Air Cooled)
200 A at 100% Duty Cycle
250 A at 60% Duty Cycle
.030 To 1/16 in.
(0.8 To 1.6 mm)
aluminum wire
70 To 900 ipm
(1.8 To 23 mpm)
2.2 lb (1 kg)
(less cables)
XR-W − 15 and 30 ft
(4.6 or 9.1 m) gun
(Water Cooled)
400 A at 100% Duty Cycle .030 To 1/16 in.
(0.8 To 1.6 mm)
aluminum wire
70 To 900 ipm
(1.8 To 23 mpm)
2.4 lb (1.08 kg)
(less cables)
4-2. Duty Cycle And Overheating
Duty Cycle is percentage of 10 min-
utes that unit can weld at rated load
without overheating.
NOTICE − Exceeding duty cycle
can damage unit and void warranty.
sduty1 5/95
6 Minutes Welding 4 Minutes Resting
Continuous Welding
Air-Cooled Models
Water-Cooled Models
100% Duty Cycle At 400 Amperes Using Argon
Continuous Welding
100% Duty Cycle At 200 Amperes Using Argon 60% Duty Cycle At 250 Amperes Using Argon
SECTION 5 − INSTALLATION
5-1. Important Information Regarding CE Products (Sold Within The EU)
! This equipment shall not be used by the general public as the EMF limits for the general public might be exceeded during welding.
This equipment is built in accordance with EN 60974−1 and is intended to be used only in an occupational environment (where the general public
access is prohibited or regulated in such a way as to be similar to occupational use) by an expert or an instructed person.
Wire feeders and ancillary equipment (such as torches, liquid cooling systems and arc striking and stabilizing devices) as part of the welding
circuit may not be a major contributor to the EMF. See the Owner’s Manuals for all components of the welding circuit for additional EMF exposure
information.
S The EMF assessment on this equipment was conducted at 0.5 meter.
S At a distance of 1 meter the EMF exposure values were less than 20% of the permissible values.
OM-236 297 Page 7
. Be sure that contact tip, liner, and drive rolls are correct for wire size and type. See Parts List to change parts as needed.
5-2. Connections With A Constant Current (CC), Constant Voltage (CV) Or Constant
Current/Constant Voltage (CC/CV) Welding Power Source Having A 14-Socket
Receptacle
Ref. 151 666-G / 250 586-A / 804 653-A / 245 997-A
3
4
6
Millermatic 350P
XR D Control
9
1 CV Or CC/CV Welding Power Source
2 24 VAC/Contactor Control 14-Pin
Plug
3 Negative (−) Weld Cable
4 Workpiece
5 Welding Gun
6 Wire Feeder
7 Positive (+) Weld Cable
8 Gas Hose
9 Gas Cylinder
. Shielding gas pressure not to exceed
100 psi (689 kPa).
7
8
9
2
1
5
5
1
OM-236 297 Page 8
5-3. Air-Cooled Gun Connections
Ref. 245 995-A / 246 218-A / 250 581-A
1 Gun Control Cable
Insert plug into Gun Control receptacle, and
tighten threaded collar.
2 Gun Power Pin
3 Gun Bushing
4 Gun Securing Knob
5 Drive Casting
Loosen gun securing knob and insert gun
power pin through gun bushing until it
bottoms against drive casting. Tighten
knob.
5
4
1
Left Side
2
3
OM-236 297 Page 9
5-4. Water-Cooled Gun Connections
Ref. 246 218-A / 250 583-A
. Turn on coolant supply before
welding or gun will be dam-
aged.
1 Gun Control Cable
Insert plug into Gun Control
receptacle, and tighten threaded
collar.
2 Gun Power Pin
3 Gun Securing Knob
4 Gun Bushing
5 Drive Casting
Loosen gun securing knob, and
insert gun power pin through gun
bushing until it bottoms against
drive casting. Tighten knob. Close
and latch door.
6 Gun (Coolant) “In” Hose
Connect to Water “Out” fitting on
feeder (left-hand threads).
7 Gun (Coolant) “Out” Hose
Connect to Water “In” fitting on
feeder (left-hand threads)
8 Water Cooler Output
9 Water Cooler Input
10 Feeder (Coolant) Output
11 Feeder (Coolant) Input
Tools Needed:
1
6
7
9/16 in.
5
3
Left Side
8
9
10
11
2
4
4
OM-236 297 Page 10
5-5. Millermatic 350/350P Water Cooled Gun Connections
Ref. 804 945-A / 151 666-G
. Turn on coolant supply before welding
or gun will be damaged.
1 Coolant Supply
2 Millermatic 350P
3 Gun Control Cable
Insert plug into gun control receptacle and
tighten threaded collar.
4 Water In Hose
Connect to coolant supply with supplied
coupler and water hose (left-hand threads).
5 Gun Connector
Loosen gun securing knob, and insert gun
connector through Wire opening until it
bottoms against block. Tighten knob. Close
and latch door.
6 Water Out Hose
Connect to coolant supply with supplied
coupler and water hose (left-hand threads).
7 Coolant “In”
8 Coolant “Out”
Tools Needed:
5
9/16 in.
6
4
3
1
2
8
7
OM-236 297 Page 11
5-6. Threading Welding Wire Through Millermatic 350/350P
1 Wire Spool
2 Welding Wire
3 Inlet Wire Guide
4 Drive Roll
5 Intermediate Wire Guide
6 Outlet Wire Guide
7 Pressure Adjustment Knob
8 Gun Conduit Cable
Lay gun cable out straight.
Tools Needed:
6 in.
(150 mm)
. Hold wire tightly to keep it
from unraveling.
Open pressure assembly.
Pull and hold wire; cut off end.
Push wire thru guides into gun;
continue to hold wire.
Close and tighten pressure
assembly, and let go of wire.
. Set pressure indicator
scale to 1/2 lb.
Ref. 803 544-A / 218 243-A / 218 244-A / S-0627-A
1
2
3
4
Pressure
Indicator
Scale
218243-A
IMPORTANT!
For Aluminum Push-Pull welding.
Thread hub tension nut loosely
IMPORTANT!
For Aluminum
Push-Pull welding.
1
2
3
4
218244-A
7
8
35621 4
See Section 5-11 for threading weld-
ing wire through XR guns.
3/4 in.
Tighten to
1/2 lb.
OM-236 297 Page 12
5-7. Threading Welding Wire Through XR-Control Feeder
Ref. 246 218-A / 805 354
Tools Needed:
2
1
1 Cable Assembly
Lay cable assembly out straight.
2 Jog Switch
Push Jog switch up to feed wire through
cable assembly.
3 Torque Switch
. Select proper push feeder torque set-
ting for wire size being used. Use low
torque for .030 in. (0.8mm) wire. Use
high torque for all other wire sizes.
3
JOG / PURGE
Notes
OM-236 297 Page 13
5-8. Adjusting Tension At Feeder
Ref. 805 350-A / 242 517-A
Tools Needed:
Pull and hold wire; cut off end.
6 in.
(150 mm)
1 Tension Arm
Open tension arm.
Thread wire thru inlet guide, along drive roll groove, and
into wire conduit. Close tension arm. Adjust tension as
follows:
. Hold wire tightly to keep
it from unraveling.
1
1
Wire Size Welding Gun Calibration
3−4
3−4
1−2
0.030 - 0.035 in.
0.040 in.
3/64 in.
1/16 in.
Tension Settings
Install proper size drive rolls.
OM-236 297 Page 14
5-9. 10-Pin Plug Information
10
Pin* Pin Information
E
F
D
J
G
C
I
H
B
A
A Electrode sense lead
B Motor Common
G Trigger
C Motor 0 to +24 volts DC with respect to pin B
D Trigger
E Wire speed Ref. +9 volts DC
H Wire speed com
F Wire speed 0 to +9 volts DC with respect to pin H
J Gun sensing resistor with respect to pin H
I Not used
5-10. Removing Top Cover Of Pistol Grip Gun
1 Top Cover Triangular Boss
Push up on triangular boss to open
door. Door hinges on handle.
To open door fully, push up on door
until it clicks into position.
. If door is pushed too far it will
separate from handle. If this
happens the door can be rein-
stalled.
Push door back into original posi-
tion to close.
802 528-C
1
OM-236 297 Page 15
5-11. Threading Welding Wire Through Gun
Ref. 246 218-A / 151 599-F / 250 982-A / 250 981-A
Tools Needed:
. Refer to Section 5-7 for instructions on feeding wire
through feeder.
Feed wire to check drive roll pressure.
If necessary, slightly tighten thumb nut
inside gun.
Cut off wire. Close and latch wire
feeder door.
WOOD
! Welding wire is electrically live when gun trigger
is used to jog wire.
. Turn OFF coolant supply before removing head tube
on water-cooled gun.
1 Pressure Roll Assembly
Lift arm and open pressure roll assembly.
2 Cable Assembly
Lay cable assembly out straight.
Push Jog switch up to feed wire through cable assembly.
3 Drive Roll
For wire sizes .035 in. (0.9 mm) and smaller use small
groove, and .047 in. (1.2 mm) and 1/16 in. (1.6 mm) use
large groove.
4 Contact Tip
Manually thread wire along drive roll groove and out con-
tact tip 2 in. (51 mm). Close pressure roll assembly.
5 Tension Thumbnut
6 Pressure Adjustment Knob
7 Final Pressure Adjustment
See procedure at bottom of page. Reinstall gun cover.
5
2
1
3
6
4
JOG / PURGE
OM-236 297 Page 16
SECTION 6 − OPERATION
6-1. Gun Controls
1 Trigger
Press trigger to energize welding
power source contactor
(if applicable), start shielding gas
flow, and begin wire feed.
2 Wire Speed Control
Use control to fine adjust wire feed
speed set on wire feeder Weld
Speed control. The numbers
around the control are for reference
only.
1
2
Ref. 151 666-F
6-2. Shielding Gas
sb5.1 6/92 − S-0621-C / Ref. 151 666-F
1 Shielding Gas Cylinder
2 Valve
3 Gun Trigger
Open valve on cylinder just before
welding.
Gun trigger turns weld output and
gas flow on and off (see Section
6-1).
Close valve on cylinder when
finished welding.
1
2
3
6-3. Sequence Of Gas Metal Arc Welding (GMAW) − Continuous Or Spot
Begin Welding
ssb6.1* 9/92
Install &
Connect
Equipment
Put On
Personal Safety
Equipment
Set Controls
Turn On Gas
And Water (If
Applicable)
Turn On Feeder
And Welding
Power Source
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Miller XR A AND XR W GUNS Le manuel du propriétaire
- Catégorie
- Système de soudage
- Taper
- Le manuel du propriétaire
- Ce manuel convient également à
dans d''autres langues
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Miller XR A AND XR W GUNS Le manuel du propriétaire
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