Miller Spoolmatic 30a manual
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Miller Spoolmatic 30a

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— answers from the official manual

Answers from the official manual.

Common questions

Common Questions

29 total
1

What is the duty cycle rating of the Spoolmatic 30A?

The Spoolmatic 30A is rated at 100% duty cycle, allowing continuous operation when using argon shielding gas. Duty cycle is defined as how long the gun/feeder can operate within a ten minute period without causing overheating or damage. (Page 9)

2

What wire diameter range is compatible with the Spoolmatic 30A?

The Spoolmatic 30A accepts .025 through 1/16 in. (0.6 through 1.6 mm) aluminum wire, and .025 through .045 in. (0.6 through 1.1 mm) hard or cored wire. The maximum spool size is 4 in. (102 mm) in diameter. (Page 9)

3

What is the correct coolant mixture to use in the water-cooled Spoolmatic 30W model?

You must use only a mix of 50% distilled water and 50% high quality automotive antifreeze that does not contain stop-leak additives. Using incorrect coolant or coolant containing stop-leak additives can corrode and/or plug gun/feeder cooling passages, and use of other coolant voids the warranty. (Page 3)

4

How do I thread welding wire through the Spoolmatic 30A?

Loosen the thumbscrew, remove the canister cover, then lift the pressure roll arm and open the pressure roll assembly. Thread the wire through the canister inlet guide, along the drive roll groove, and out the contact tube, installing the spool so the wire feeds off the bottom. Close and secure the pressure roll assembly, then reinstall the top cover and canister cover. (Page 10)

5

What should I do if the welding wire feeds erratically?

Check and correct the drive roll pressure, then clean or replace the drive roll if needed. You should also decrease the spool brake pressure if it is set too tight. These remedies are outlined in the troubleshooting table. (Page 14)

6

What should I do if pressing the gun trigger does not energize the weld control or start shielding gas flow?

Secure the plug from the gun/feeder trigger cord into the 10-socket receptacle on the weld control. This is the primary remedy listed in the troubleshooting table for this symptom. (Page 14)

Show 23 more questions

What is the ampere rating difference between the air-cooled and water-cooled models?

How do I change the contact tube and liner on the Spoolmatic 30A?

What is the recommended routine maintenance schedule for the Spoolmatic 30A?

How do I adjust the drive roll and spool brake pressure?

How do I adjust the drive roll pressure on my Spoolmatic gun/feeder?

What safety precautions should I follow when using a Spoolmatic gun?

Where should I install the gas supply cylinder when using a Spoolmatic gun?

How do I replace the spool brake pressure thumbnut on my Spoolmatic gun?

What cleaning materials can I use on the drive roll when maintaining my Spoolmatic gun?

What is the process for changing the contact tube liner?

How do I connect an air-cooled Spoolmatic gun to a weld control?

What coolant should I use for a water-cooled Spoolmatic gun?

What do I do if my Spoolmatic gun overheats?

How do I install the water-cooled version of the Spoolmatic 30a?

What is the proper way to adjust the spool brake pressure on my Spoolmatic?

How do I change the contact tube on Spoolmatic?

What is the routine maintenance schedule for my Spoolmatic?

How do I know if my coolant system needs cleaning or flushing?

What steps should I take if my Spoolmatic does not feed wire properly?

Where do I find the serial number required for ordering replacement parts?

What safety precautions should I follow during maintenance?

How do I troubleshoot burnback issues in my contact tube?

What is the minimum coolant flow rate requirement for a water-cooled Spoolmatic model?

Full Manual

28 pages
Page 1

![image 1](o1213b_mil_images/imageFile1.png)

February 1992 FORM: OM-1213B

Millerfi EffectiveWithSerialNo.KC184391

################################ MODEL: SPOOLMATICfi 30A

SPOOLMATICfi 30W

#### OWNER S MANUAL

IMPORTANT: Read and understand the entire contents of both this manual and

the power source manual used with this unit, with special emphasis on the safety MILLER ELECTRIC Mfg. Co. material throughout the manual, before installing, operating, or maintaining this

A Miller Group Ltd., Company equipment. This unitand these instructions are foruse only bypersons trained and P.O. Box 1079 experienced in the safe operation of welding equipment. Do not allow untrained persons to install, operate, or maintain this unit. Contact your distributor ifyou do

Appleton, WI 54912 USA Tel. 414.734.9821

############################### not fully understand these instructions.

cover2 1/92 Ref. SB-147 741-A PRINTED IN USA

![image 2](o1213b_mil_images/imageFile2.png)

###################### LIMITED WARRANTY

########################################### EFFECTIVE: AUGUST 6, 1990

This warranty supersedes all previous MILLER warranties and is exclusive with no other guarantees or warranties expressed or implied.

In the case of MILLER s breach of warranty or any other duty with respect to the quality of any goods, the exclusive remedies therefore shall be, at MILLER s option (1) repair or (2) replace ment 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 FOB., Factory at Appleton, Wisconsin, or FOB. at a MILLER authorized service facility, therefore, no compensation for transportation costs of any kind will be allowed. Upon receipt of notice of apparent defect or failure, MILLER shall instruct the

LIMITED WARRANTY Subject to the terms and conditions hereof, MILLER Electric Mfg. Co. Appleton. Wisconsin war rants to its Distributor/Dealer that all new and unused Equipment furnished by MILLER is free from defect in workmanship and material as of the time and place of delivery by MILLER. No warranty is made by MILLER with respect to engines, trade accessories or other items manufactured by others. Such engines, trade accessories and other items are sold subject to the warranties of their respective manufacturers, if any. All engines are warrantied by their manufacturer for two years from date of original purchase, except Deutz engines which have a one year, 2000 hour warranty.

####################################### claimant on the warranty claim procedures to be followed.Exceptasspecifiedbelow,MILLER swarrantydoesnotapply

to components having normal useful life of less than one (1) year, such as spot welder tips, relay and contactor points, MILLERMATIC parts that come in contact with the welding wire including nozzles and nozzle insulators where failure does not result from defect in workmanship or material.

ANY EXPRESS WARRANTY NOT PROVIDED HEREIN AND ANY IMPLIED WARRANTY, GUARANTY OR REPRE SENTATION AS TO PERFORMANCE, AND ANY REMEDY FOR BREACH OF CONTRACT WHICH, BUT FOR THIS PROVISION, MIGHT ARISE BY IMPLICATION, OPERATION OF LAW, CUSTOM OF TRADE OR COURSE OF DEALING, INCLUDING ANY IMPLIED WARRANTY OF MERCHAN TABILITY OR OF FITNESS FOR PARTICULAR PURPOSE, WITH RESPECT TO ANY AND ALL EQUIPMENT FURNISHED BY MILLER IS EXCLUDED AND DISCLAIMED BY MILLER.

MILLER shall be required to honor warranty claims on war ranted Equipment in the event of failure resulting from a defect within the following periods from the date of delivery of Equipment to the original user:

  • 1. Arc welders, power sources, robots, and 1 year components
  • 2. Load banks 1 year
  • 3. Original main power rectifiers 3 years (labor 1 year only)
  • 4. All welding guns, feeder/guns and torches 90 days
  • 5. All other MILLERMATIC Feeders 1 year
  • 6. Replacement or repair parts, exclusive of labor. 60 days
  • 7. Batteries 6 months
  • EXCEPT AS EXPRESSLY PROVIDED BY MILLER IN WRITING, MILLER PRODUCTS ARE INTENDED FOR ULTIMATE PURCHASE BY COMMERCIAL/INDUSTRIAL USERS AND FOR OPERATION BY PERSONS TRAINED AND EXPERIENCED IN THE USE AND MAINTENANCE OF WELDING EQUIPMENT AND NOT FOR CONSUMERS OR CONSUMER USE. MILLER S WARRANTIES DO NOT EXTEND TO, AND NO RESELLER IS AUTHORIZED TO EXTEND MILLER S WARRANTIES TO, ANY CONSUMER,

    provided that MILLER is notified in writing within thirty (30) days of the date of such failure.

    As a matter of general policy only. MILLER may honor claims submitted by the original user within the foregoing periods.

    ################## :I~i

    ~~1

    ##################################### 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 claims 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 of your unit. The information is located on the rating label or nameplate.

    Model

    __________ Serial or Style No. Date of Purchase

    r~,iIIe, 8/91

    ![image 3](o1213b_mil_images/imageFile3.png)

    ERRATA SHEET July 15, 1992 FORM: OM-1213B

    Use above FORM number when ordering extra manuals.

    ##################### a CAUTION

    ################################ INCORRECT COOLANT OR COOLANT CONTAINING STOP-LEAK ADDITIVES can corrode and/or plug gun! feeder cooling passages.

    Use only a mix of 50% distilled water and 50% high quality automotive antifreeze as proper coolant for this product. Do not use antifreeze containing stop-leak additives. Use of other coolant voids warranty.

    Page 2

  • CHANGES TO SECTION 2 SPECIFICATIONS
  • Change the following entry in Table 2-1. Gun/Feeder

    a WARNING

    WELDING WIRE can cause puncture wounds.

    Do not press gun trigger until instructed to do so. Do not point gun toward any part of the body, other

    people, or any metal when threading welding wire.

    .

    ~i- .

    ELECTRIC SHOCK can kill.

    ,~

    S Do not touch live electrical parts.

    The welding wire, drive rolls, drive assembly, and all metal parts touching the welding wire are electrically live when welding or feeding wire using gun trigger.

    After this manual was printed, refinements in equipment design occurred. This sheet lists exceptions to data appearing later in this manual.

    Specifications Description

    Coolant Requirements (Water-Cooled Models) 1 qt/min Minimum Flowrate Use Only 50% Distilled Water And 50% High Quality

    Automotive Antifreeze (See Section 3-8)

  • CHANGES TO SECTION 3 INSTALLATION
  • Replace Section 3-3. Adjusting Shielding Gas Nozzle

    HOT SURF Allow gun to

    ACES can burn skin. cool before touching.

    w~warn2.I / w~warn71* 9/91

    ############################################# contact tube should be flush with end of nozzle.

  • 2 Jam Nut
  • 3 Shielding Gas Nozzle
  • To change contact tube location, loosen jam nut, and turn nozzle. Tighten jam nut.

    5T.1 50434

    ############################## Figure 3-3. AdJusting Gas Nozzle

    ![image 4](o1213b_mil_images/imageFile4.png)

    ############################## Change Section 3-8. Coolant Guidelines To Minimize Corrosion Minimize corrosion in the gun/feeder and cooling system by following these guidelines:

  • 1 .- Use only a mix of 50% distilled water and 50% high quality automotive antifreeze that does not contain stop-leak additives. Use of other coolant voids the warranty.
  • 2. Do not change coolant unless it is discolored or dirty. Add distilled water to maintain water level.
  • 3. Be sure electrical connections are tight. Do not make electrical connections with connectors made of different metals.
  • ############################### CHANGES TO SECTION 5 MAINTENANCE AND TROUBLESHOOTINGAdd the following to Table 5-2. Welding Trouble

    Trouble Remedy Section

    Poor cleaning action when Position contact tube within nozzle. 3-3 weldin g aluminum.

    ##################################### CHANGES TO SECTION 6 ELECTRICAL DIAGRAMS

    Replace Figure 6-1. Circuit Diagram For Gun/Feeder

    I-

    ~1

    PULL MOTOR

    GUN ASSEMBLY

    62

    Cw TRIGGER

    Page 3

    -o o

    PB I

    L_

    I

    \!/ F

    \V 0

    \!/

    ######################################### PLG2

    B C

    G E

    ) ~

    )

    Y CORD #2

    Y

    CORD #1

    SA.136 956-B

    Figure 6-1. Circuit Diagram For Gun/Feeder

    ##################################### CHANGES TO SECTION 7 PARTS LIST

    Amend Parts List as follows:

    Part Replaced No. With Description Quantity

  • 17- Added
  • ...

    134 799

    .. 0-RING, .176 ID x .070 CS (30A model only) (Effw/KC224994)

    (used w/thumbscrew) 1

  • 17-
  • ....

    134 799

    ...

    134 799

    .. 0-RING, (qty chg) (30W model only) (Effw/KC224994)

    (Additional qty used w/thumbscrew) 3

  • 18-38
  • ...

    133 083

    ...

    154 307

    .. SPRING, tension adj drive roll (Eff w/KC243471) 1

  • 18-53
  • .. SCREW, thumb spring plunger (Effw/KC194049) 1

    135 498

    155 565

    Page 4

    .. .

    ...

    **First digit represents page no digits following dash represent item no. BE SURE TO PROVIDE MODEL AND SERIAL NUMBER WHEN ORDERING REPLACEMENT PARTS. OM-l2l3BPage2

    ![image 5](o1213b_mil_images/imageFile5.png)

    #################### ARC WELDING SAFETY PRECAUTIONS

    ###################### a WARNING

    ARC 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 that will be found in the Safety Standards listed on the next page. Read and follow all Safety Standards.

    ################################# HAVE ALL INSTALLATION, OPERATION, MAINTENANCE, AND REPAIR WORK PERFORMED ONLY BY QUALIFIED PEOPLE.

    ###################################### ELECTRIC SHOCK can kill.

  • Properly install and ground this equipment according to its Owner s Manual and national, state, and local codes. Turn off all equipment when not in use.
  • Touching live electrical parts can cause fatal shocks or severe-burns. The electrode and work circuit is electrically live whenever the output is on. The input power circuit and machine internal circuits are also live when power is on. In semiautomatic or automatic wire welding, the wire, wire reel, drive roll housing, and all metal parts touching the welding wire are electrically live. Incorrectly installed or improperly grounded equipment is a hazard.

  • 6.
  • 7.
  • 8.
  • 9.
  • 10.
  • ###################################### Do not use worn, damaged, undersized, or poorly spliced cables.

    Do not wrap cables around your body. Ground the workpiece to a good electrical (earth) ground. Do not touch electrode while in contact with the work (ground) circuit.

  • 1. Do not touch live electrical parts.
  • 2. Wear dry, hole-free insulating gloves and body protection.
  • 3. Insulate yourself from work and ground using dry insulating mats or covers.
  • 4. Disconnect input power or stop engine before installing or servicing this equipment.
  • 11. Use only well-maintained equipment. Repair or replace damaged parts at once.
  • 12. Wear a safety harness to prevent falling if working above floor level.
  • Keep all panels and covers securely in place.
  • ################################# ARC RAYS can burn eyes and skin; NOISE can damage hearing.

    Wear a welding helmet fitted with a proper shade of filter (see ANSI Z49.1 listed in Safety Standards) to protect your fac~and eyes when welding or watching.

  • 1.
  • 2.
  • 3.
  • 4.
  • 5.
  • ####### ,_ ~

    Wear approved safety glasses. Side shields recommended. Use protective screens or barriers to protect others from flash and glare: warn others not to watch the arc. Wear protective clothing made from durable, flame-resistant material (wool and leather) and foot protection. Use approved ear plugs or ear muffs if noise level is high.

    Arc rays from the welding process produce intense heat and strong ultraviolet rays that can burn eyes and skin. Noise from some processes can damage hearing.

    LL~.

    FUMES AND GASES can be hazardous 5. Work in a confined space only if it is well ventilated, or while to your health. Wearing an air-supplied respirator. Shielding gases used for Weldingproducesfumesandgases. Breathing these

    welding can displace air causing injury or death. Be sure the breathing air is safe.

    fumes and gases can be hazardous to your health,

    A~

    Do not weld in locations near degreasing, cleaning, or spraying operations. The heat and rays of the arc can react with vapors to form highly toxic and irritating gases.

  • 6.
  • 7.
  • 1. Keep your head out of the fumes. Do not breath the fumes.
  • 2. If inside, ventilate the area and/or use exhaust at the arc to remove welding fumes and gases.
  • 3. If ventilation is poor, use an approved air-supplied respirator.
  • Page 5

  • 4. Read the Material Safety Data Sheets (MSDSs) and the
  • Do not weld on coated metals, such as galvanized, lead, or cadmium plated steel, unless the coating is removed from the weld area, the area is well ventilated, and if necessary, while wearing an air-supplied respirator. The coatings and any metals containing these elements can give off toxic fumes if welded.

    manufacturer s instruction for metals, consumables, coatings, and cleaners,

    WELDING can cause fire or explosion. Sparks and spatter fly off from the welding arc. The flying sparks and hot metal, weld spatter, hot workpiece, and hot equipment can cause fires and burns. Accidental contact of electrode or welding wire to metal objects can cause sparks, overheating, or fire.

    Watch for fire, and keep a fire extinguisher nearby. Be aware that welding on a ceiling, floor, bulkhead, or partition can cause fire on the hidden side. Do not weld on closed containers such as tanks or drums.

  • 5.
  • 6.
  • 7.
  • 8.
  • 9.
  • 10.
  • Connect work cable to the work as close to the welding area as practical to prevent welding current from traveling long, possibly unknown paths and causing electric shock and fire hazards.

    Protect yourself and others from flying sparks and hot metal.

  • 1.
  • 2.
  • 3.
  • 4.
  • Do not use welder to thaw frozen pipes. Remove stick electrode from holder or cut off welding wire at contact tip when not in use.

    Do not weld where flying sparks can strike flammable material. Remove alt flammables within 35 ft (10.7 m) of the welding arc. If this is not possible, tightly cover them with approved covers.

    Be alert that welding sparks and hot materials from welding can easily ao through small cracks and openings to adjacent areas

    ####################################### 11. Wear oil-free protective garments such as leather gloves, heavy

    ###################################### shirt, cuffless trousers, high shoes, and a cap.

    FLYING SPARKS AND HOT METAL can cause injury. Chipping and grinding cause flying metal. As welds cool, they can throw off slag.

  • 1. Wear approved face shield or safety goggles. Side shields recommended.
  • 2. Wear proper body protection to protect skin.
  • srI 9191

    ![image 6](o1213b_mil_images/imageFile6.png)

  • 3. Keep cylinders away from any welding or other electrical circuits.
  • 4. Never allow a welding electrode to touch any cylinder.
  • 5. Use only correct shielding gas cylinders, regulators, hoses, and fittings designed for the specific application; maintain them and associated parts in good condition.
  • 6. Turn face away from valve outlet when opening cylinder valve.
  • 7. Keep protective cap in place over valve except when cylinder is in use or connected for use.
  • 8. Read and follow instructions on compressed gas cylinders, associated equipment, and CGA publication P-i listed in Safety Standards.
  • ################################ CYLINDERS can explode if damaged.

    ###################################### Shielding gas cylinders contain gas under high pressure. If damaged, a cylinder can explode. Since gas cylinders are normally part of the welding process, be sure to treat them carefully.

  • 1. Protect compressed gas cylinders from excessive heat, mechanical shocks, and arcs.
  • 2. Install and secure cylinders in an upright position by chaining them to a stationary support or equipment cylinder rack to prevent falling or tipping.
  • ###################### a WARNING

    #################################### ENGINES can be hazardous.

    ##################################### ENGINE EXHAUST GASES can kill. 1. Use equipment outside in open, well-ventilated areas.

  • If used in a closed area, vent engine exhaust outside and
  • Engines produce harmful exhaust gases.

    away from any building air intakes.

    ENGINE FUEL can cause fire or 1. Stop engine before checking or adding fuel. explosion.

    Do not add fuel while smoking or if unit is near any sparks or open flames.

  • 2.
  • 3.
  • 4.
  • 5.
  • Page 6

    Allow engine to cool before fueling. If possible, check and add fuel to cold engine before beginning job. Do not overfill tank allow room for fuel to expand. Do not spill fuel. If fuel is spilled, clean up before starting engine.

    Engine fuel is highly flammable.

  • MOVING PARTS can cause injury. Moving parts, such as fans, rotors, and belts can cut fingers and hands and catch loose clothing.
  • Have only qualified people remove guards or covers for maintenance and troubleshooting as necessary. To prevent accidental starting during servicing, disconnect negative ( ) battery cable from battery. Keep hands, hair, loose clothing, and tools away from moving parts. Reinstall panels or guards and close doors when servicing is

  • 3.
  • 4.
  • 5.
  • 6.
  • Keep all doors, panels, covers, and guards closed and securely in place.

    ############################################### 1.

    ###################################### 2. Stop engine before installing or connecting unit, finished and before starting engine.

    ################################### SPARKS can cause BATTERY GASES TO EXPLODE; BATTERY ACID can burn eyes and skin.

    Always wear a face shield when working on a battery. Stop engine before disconnecting or connecting battery cables.

  • 1.
  • 2.
  • Do not allow tools to cause sparks when working on a battery. Do not use welder to charge batteries or jump start vehicles. Observe correct polarity (+ and ) on batteries.
  • 5.
  • Batteries contain acid and generate explosive gases.

    ################################# STEAM AND PRESSURIZED HOT COOLANT can burn face, eyes, and skin.

  • Do not remove radiator cap when engine is hot. Allow engine to cool. Wear gloves and put a rag over cap area when removing cap. Allow pressure to escape before completely removing cap.
  • 2.
  • 3.
  • The coolant in the radiator can be very hot and under pressure.

    ################################ PRINCIPAL SAFETY STANDARDS

    Safety in Welding and Cutting, ANSI Standard Z49.1. from American Welding Society, 550 NW. LeJeune Ad, Miami FL 33126

    Safe Handling of Compressed Gases in Cylinders, CGA Pamphlet P-I, from Compressed Gas Association, 1235 Jefferson Davis High way, Suite 501, Arlington, VA 22202.

    Safety and Health Standards, OSHA 29 CFR 1910, from Superinten dent of Documents, U.S. Government Printing Office, Washington, D.C. 20402.

    Code for Safety in Welding and Cutting, CSA Standard Wi 17.2. from Canadian Standards Association, Standards Sales, 178 Rexdale Bou levard, Rexdale, Ontario, Canada M9W 1 R3.

    Recommended Safe Practices for the Preparation for Welding and Cutting ofContainers That Have Held Hazardous Substances, Amen. can Welding Society Standard AWS F4.1,from American Welding So ciety, 550 NW. LeJeune Ad, Miami, FL 33126

    Safe Practices ForOccupationAnd Educational EyeAnd Face Protec tion, ANSI Standard Z87.1, from American National Standards Insti tue. 1430 Broadway, New York, NY 10018.

    National Electrical Code, NFPA Standard 70, from National Fire Pro tection Association, Batterymarch Park, Quincy, MA 02269.

    Cutting And Welding Processes, NFPA Standard 51 B, from National Fire Protection Association, Batterymarch Park, Quincy, MA 02269.

    Sri 9/91

    ![image 7](o1213b_mil_images/imageFile7.png)

    ################### TABLE OF CONTENTS

  • SECTION 1 SAFETY SIGNAL WORDS 1
  • SECTION 2 SPECIFICATIONS
  • 2-1. DutyCycle 1
  • SECTION 3- INSTALLATION

  • 3-1. Removing Top Cover 2
  • 3-2. Installing Wire Spool And Threading Welding Wire 2
  • 3-3. Adjusting Shielding Gas Nozzle 3
  • 3-4. Rotating Canister 4
  • 3-5. Connecting Air-Cooled Model To Weld Control 4
  • Page 7

  • 3-6. Connecting Water-Cooled Model To Weld Control 5
  • 3-7. Installing Gas Supply 6
  • 3-8. Coolant Guidelines To Prevent Corrosion 7
  • 3-9. Adjusting Drive Roll And Spool Brake Pressure 7
  • SECTION 4 OPERATION 8
  • SECTION 5 MAINTENANCE & TROUBLESHOOTING
  • 5-1. Routine Maintenance 10
  • 5-2. Changing Contact Tube And Liner 10.
  • 5-3. Changing Or Cleaning Drive Roll 11
  • 5-4. Replacing Or Cleaning Drive Roll Bearing 11
  • 5-5. Replacing Canister Inlet Guide 12
  • 5-6. Replacing Spool Canister 12
  • 5-7. Replacing Contact Tube Adapter 13
  • 5-8. Troubleshooting 13
  • SECTION 6 ELECTRICAL DIAGRAMS 15
  • SECTION 7 PARTS LIST Figure 7-1 Main Assembly 16
  • OM-1213B -2/92

    ![image 8](o1213b_mil_images/imageFile8.png)

    ![image 9](o1213b_mil_images/imageFile9.png)

    ##################### SECTION 1 SAFETY SIGNAL WORDS

    modl.l 9191

    The following safety alert symbol and signal words are used throughout this manual to call attention to and identity different levels of hazard and special instructions.

    ####################### a WARNING

    WARNING statements identify procedures or practices which must be followed to avoid serious personal injury or loss of life.

    #################### a CAUTION

    ############################### CAUTION statements identify procedures or practices which must be followed to avoid minor personal injury or damage to this equipment.

    ~ IMPORTANT: statements identify special instructions necessary for the most efficient operation of this equipment.

    ###################### SECTION 2 SPECIFICATIONS

    Table 2-1. Gun/Feeder

    ################################### Specification Description

    Input Power 30 Volts DC

    Ampere Rating Air-Cooled Models: 200 Amperes; Water-Cooled Models: 400 Amperes

    Duty Cycle 100% Using Argon Shielding Gas (see Section 2-1)

    Approximate Wire Feed Range 70 to 875 pm (1.7 to 22.2 mpm)

    Wire Diameter Range .025 Thru 1/16 in. (0.6 Thru 1.6 mm) Aluminum Wire

    .025 Thru .045 in. (0.6 Thru 1.1 mm) Hard Or Cored Wire

    Maximum Spool Size 4 in. (102 mm) Diameter

    Cooling Method Air Cooled (A Models) Or Water Cooled (W Models)

    ####################################### Coolant Requirements (Water-Cooled Models) 1 qt./min. Minimum Flowrate

    Use Distilled Or Deionized Water, Or High-Quality Tap Water

    Cable Length 30 ft. (9.1 mm)

    Overall Dimensions Length: 15-3/8 in. (390 mm); Width: 2-1/2 in. (64 mm);

    Height: 10-3/4 in. (273 mm)

    Weight Air-Cooled Models: Gun Only 2.9 lbs. (1.3 kg); Gun With Cable Assembly 14 lbs. (6.4 kg) Water-Cooled Models: Gun Only 3.4 lbs. (1.5 kg); Gun With Cable Assembly 14.5 lbs. (6.6 kg)

    ########################## 2-1. Duty Cycle

    Duty cycle is how long the gun/feeder can operate within a ten minute period without causing overheating or damage. This gun/feeder is rated at 100% duty cycle allowing continuous operation when using argon shielding gas.

    ![image 10](o1213b_mil_images/imageFile10.png)

    #################### SECTION 3 INSTALLATION

    Page 8

    #################################### Table 3-1. Items Included With Gun/Feeder

    ################################### Item Quantity

    Drive Roll (Small Groove For .025 To .035 in. Wire, Large 1 Groove For .047 To .062 in. Wire) Shipped With Large Groove In Feed Position

    Contact Tubes* (1 For Each Wire Size .0231.025, 5

    ##################################### .030, .035, .0451.047, And .062 in.) Shipped With .0451.047 Installed

    ####################################### Liner (1 .023-035 And I .047-062 in.) Shipped With 2

    .045-062 Installed 10 ft. (3 m) Gas Hose With Adapter Fitting 1 10 ft. (3 m) Water Hose With Adapter Fitting (Water-Cooled Models Only) lOft. (3 m) Water Hose (Water-Cooled Models Only) 1

    Contact Tube Wrench 1

    *Contact tubes are marked with wire size and inside diameter (LD.) of tube. Forex ample, a .035/52 contact tube is used with .035 wire, and the tube has an ID. of 0.052 in. (1.3 mm).

    ~ IMPORTANT: If contact tube, liner, and drive rot/groove are not correct for wire size and type, see Section 5 to

    change parts as needed. See Section 7 for list of other available contact tubes.

    ######################### 3-1. Removing Top Cover

    1 Top Cover Push back and lift off as shown.

    To reinstall cover, set rear of cover in gun/feeder, and push cover back and down until it clicks into posi tion.

    Ret. ST.150 882-A

    Figure 3-1. Top Cover

  • 3-2. Installing Wire Spool And Threading Welding Wire
  • ###################### 41 WARNiNG

    ELECTRIC SHOCK can kill. Do not touch live electrical parts.

    ############################### CYLINDERS can explode It damaged. Keep cylinders away from welding and other

    electrical circuits.

    The welding wire, drive rolls, drive assembly, and all metal parts touching the welding wire are electrically live when welding or feeding wire using gun trigger.

    Never touch cylinder with welding electrode.

    Always secure cylinder to running gear, wall, or other stationary support.

    HOT SURF Allow gun to

    ACES can burn skin. cool before touching.

    WELDING WIRE can cause puncture wounds.

    Do not press gun trigger until instructed to do so. Do not point gun toward any part of the body, other

    7

    ######################### ~

    people, or any metal when threading welding wire.

    wfwarn2.1 /wfwarnl.t 9/91 OM-1213 Page 2

    ![image 11](o1213b_mil_images/imageFile11.png)

  • 1 Top Cover
  • 2 Canister
  • 3 Canister Cover
  • 4 Thumbscrew
  • Loosen thumbscrew and remove cover.

  • 5 Wire Spool
  • Loosen wire from spool, cut off bent wire, and pull 6 in. (150mm) of wire off spool.

  • 6 Pressure Roll Assembly
  • Lift arm and open pressure roll as sembly.

  • 7 Canister Inlet Guide
  • Page 9

  • 8 Drive Roll Groove
  • 9 Contact Tube
  • Thread wire through canister inlet guide, along drive roll groove, and out contact tube.

    Install spool so wire feeds off bot tom.

  • 10 Spool Brake Thumbnut
  • ############################################# 0

    ############################################## 3

    4

    9

    If necessary, turn thumbnut coun terclockwise slightly to install spool.

    Close and secure pressure roll as sembly.

    ######################################## Reinstall top cover and canister cover.

    ############################################ Tools Needed:

    5T.150 436-A

    Figure 3-2. Installing Spool And Threading Wire

    ########################## 3-3. Adjusting Shielding Gas Nozzle

    a WARNING ELECTRIC SHOCK, WELDING WIRE, AND HOT PARTS HAZARDS. Read safety infor

    ################################ mation at beginning of Section 3-2 before proceeding.

    2~

    #################################### 3 Shielding Gas Nozzle

    1

    ####################################### To change contact tube location, loosen jam nut, and turn nozzle. Tighten jam nut.

    ############################################ 3

    ST-ISO 434

    ############################### Figure 3-3. Adjusting Gas Nozzle

    ![image 12](o1213b_mil_images/imageFile12.png)

  • 3-4. Rotating Canister
  • 3-5. Connecting Air-Cooled Model To Weld Control
  • 1 Canister Move canister until it clicks into one of the 5 positions shown.

    Rear View

    ST-150 433-A

    ################################ Figure 3-4. Rotating Canister

    ################## ~ WARNING

    ELECTRIC SHOCK can kill. Do not touch live electrical parts. Turn OFF welding power source, and disconnect input power before inspecting or installing. Stop engine on welding

    ######################################### generators.

    Swami i9/91

    #################################### A. Connections To 24 Volt Weld Control

  • 1 Gas Hose
  • 2 lOft. (3m) Gas Hose With 5/8 in. Adapter Fitting
  • Connect fitting to gun/feeder gas hose and remaining end to regula. tor/flowmeter (see Section 3.7).

  • 3 24 Volt Weld Control
  • 4 Trigger Control Cord
  • Insert plug into receptacle, and tighten threaded collar.

  • 5 Weld Cable
  • Page 10

    ############################################# 2

    4

    ##################################### Connect to positive (+) weld output terminal on welding power source according to its Owner s Manual.

    Tools Needed:

    ########################################## 1-1/8 in., 5/8 in.

    ST-150 917-A

    Figure 3-5. Connections To 24 Volt Weld Control

    OM-1213 Page 4

    ![image 13](o1213b_mil_images/imageFile13.png)

    ##################################### B. Connections To 115 Volt Weld Control

    ########### 3~,

  • 1 115 Volt Weld Control
  • 2 Gas Hose Connect to Gas outlet on control.
  • 3 lOft. (3m) Gas Hose
  • Remove 5/8 in. adapter fitting from hose. Connect according to weld control Owner s Manual.

  • 4 Trigger Control Cord
  • Insert plug into receptacle, and tighten threaded collar.

  • 5 Weld Cable
  • 6 Positive (+) Weld Output Terminal In Control
  • Connect weld cable to positive (+) weld output terminal in weld control.

    5 4

    Reinstall weld control wrapper.

    Tools Needed:

    ######################################## ~ 1-1/8 in.,

    5/8 in.

    Ret. ST.1 49549-A / ST-I 49966-A

    Figure 3.6. Connections To 115 Volt Weld Control

  • 3-6. Connecting Water-Cooled Model To Weld Control
  • ####################### 4~ WARNING

    ELECTRIC SHOCK can kill. Do not touch live electrical parts. Turn OFF welding power source, and disconnect

    ############################### OVERHEATING can damage gun parts.

    If using recirculating coolant system, do not make connections from coolant system to water valve; instead make connections directly from coolant system to gun hoses.

    input power before inspecting or installing. Stop engine on welding generators.

    INCORRECT COOLANT FLOWRATE can damage gun parts. Maintain minimum lqt/min. flowrate at all times.

    swam I.19/91

    ###################################### A. Connections To 24 Volt Weld Control

    ##################################### Obtain coolant supply. I Trigger Control Cord

    2 24 Volt Weld Control Insert plug into receptacle, and

    5 tighten threaded collar.

  • 3 Power(Water Cable
  • 4 Power Cable Adapter
  • 5 loft. (3m) Water Hose
  • Obtain Power Cable Adapter kit 139 161 and connect according to kit instructions.

  • 6 Gas Hose
  • 7 10 ft. (3m) Gas Hose With 5/8 in. Adapter Fitting
  • Page 11

    Connect fitting to gun/feeder gas hose and remaining end to regula. tor/flowmeter (see Section 3.7).

  • 8 Water Hose
  • 9 10 ft. (3 m) Water Hose With 5/8 in. Adapter Fitting
  • 4

    2

    Connect fitting to gun/feeder water hose and remaining end to water supply.

    Tools Needed:

    ~ 1-1/8 in., 5/8 in.

    ST-150 432-9

    ############################### Figure 3-7. Connections To 24 Volt Weld Control

    OM-1213 Pages

    ![image 14](o1213b_mil_images/imageFile14.png)

  • B. Connections To 115 Volt Weld Control
  • Obtain coolant supply.

  • 1 115 Volt Weld Control
  • 2 Strain Relief Remove strain relief as shown.
  • 3 Power/Water Cable
  • Route cable through strain relief and connect to weld/water outlet on control. Reinstall strain relief.

  • 4 Trigger Control Cord
  • Insert plug into receptacle, and tighten threaded collar.

  • 5 Water Hose Connect to water outlet on control.
  • 6 Gas Hose
  • Connect to gas outlet on control.

  • 7 lOfi. (3 m) Water Hose
  • 8 lOft.(3m)GasHose
  • 2

    3

    ###################################### Remove 5/8 in. adapter fittings from hoses. Connect hoses ac cording to weld control Owner s

    Tools Needed: Manual.

    ~ 1-1/8 in., 5/Bin.

    ST-152 455

    ############################### Figure 3-8. Connections To 115 Volt Weld Control

  • 3-7. Installing Gas Supply
  • ##################### a WARNING

    I

    c

    YLINDERS can explode it damaged.

    ##################################### ELECTRIC SHOCK can kill. Do not touch live electrical parts.

    ############### ~T ~

    \

    ###################################### Keep cylinders away from welding and other electrical circuits.

    Page 12

    -b--

    ####################################### The welding wire, drive rolls, drive assembly, and all metal parts touching the welding wire are electrically live when welding or feeding wire using gun trigger.

    Never touch cylinder with welding electrode. Always secure cylinder to running gear, wall, or other stationary support.

    ~

    ~

    wfwarnl.1 9/91

    Obtain gas cylinder and chain to running gear, wall, or other station ary support so cylinder cannot fall and break off valve.

  • 1 Cylinder
  • 2 Cylinder Valve
  • Remove cap, stand to side of valve, and open valve slightly. Gas flow blows dust and dirt from valve. Close valve.

  • 3 Cap
  • 4 Regulator
  • Obtain regulator and install onto gas cylinder so that face is vertical.

  • 5 Flow Gauge Obtain flow gauge.
  • 6 Flow Adjust
  • 7 Typical flow rate is 20 cfh (cubic feet

    per hour).

  • 7 Gas Hose Connection
  • ##################################### Tools Needed: Fitting has 5/8-18 right-hand ~ 1-1/8 in., threads. Connect gas hose fitting

    .~

    5/8 In. here. Ref. ST.149 827 Figure 3-9. Typical Argon Regulator/Flow Gauge Installation

    ~

    ![image 15](o1213b_mil_images/imageFile15.png)

  • 3-8. Coolant Guidelines To Prevent Corrosion
  • Prevent corrosion in the gun/feeder and cooling system by following these guidelines:

  • 1. Add chlorine bleach to the coolant system to remove algae as follows:
  • a. For coolant systems with a capacity of 2 gallons (7.6 L) or less, add 1/2 oz. (15 ml) bleach.
  • b. For coolant systems with a capacity greater than 2 gallons (7.6 L), add 1 oz. (30 ml) bleach.
  • Using more than the specified amount of bleach in the coolant system will increase corrosion and shorten the life of the system.

  • 2. If operating at temperatures below freezing, use an ethylene glycol solution (Miller Part No. 128705) in the cool ant system. Do not use automotive-type antifreezes that contain anti-leak compounds which could block torch cooling passages.
  • 3. Do not change coolant unless it is discolored or dirty. Add soft, high~quality tap water, deionized water, or distilled water to maintain coolant level.
  • 4. Be sure electrical connections are tight. Do not make electrical connections with connectors made of different metals.
  • 3-9. Adjusting Drive Roll And Spool Brake Pressure
  • ##################### a CAUTION

    ##################################### HOT SURFACES can burn skin. Allow gun to cool before touching.

    ################################# WELDING WIRE can cause puncture wounds.

    Do not press gun trigger until instructed to do so. Do not point gun toward any part of the body, other

    people, or any metal when threading welding wire.

    w~warn2.1 9/91

  • 1 Top Cover
  • 2 Canister Cover
  • 3 Thumbscrew
  • Loosen thumbscrew and remove cover.

    Page 13

  • 4 Spool
  • Cut welding wire off at contact tube. Retract wire onto spool and secure.

  • 5 Spool Brake Thumbnut
  • Grasp spool in one hand and turn while adjusting spool brake thumbnut. When a slight force is needed to turn spool, tension is set. Do not overtighten.

    Reinstall canister cover. Thread welding wire (see Section 3-2).

  • 6 Drive Roll Tension Thumbnut
  • 7 Adjusting Pressure Turn ON unit and check drive roll
  • 3

    6

    pressure by feeding wire against a wood board or concrete surface; wire should feed steadily without slipping.

    ############################################ Tools Needed:

    Adjust drive roll tension thumbnut if necessary. Do not overtighten.

    Turn OFF unit. Reinstall top cover. Ref. 5T.151 112/S.0651

    Figure 3-10. AdJusting Drive Roll And Spool Brake Pressure

    ![image 16](o1213b_mil_images/imageFile16.png)

    SECTION 4- OPERATION

    ##################### a WARNING

    ELECTRIC SHOCK can kill. Do not touch live electrical parts. Always wear dry insulating gloves. Insulate yourself from work and ground. Keep all panels and covers securely in place 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

    ARC RAYS can burn eyes and skin; NOISE can damage hearing. Wear welding helmet with correct shade of filter. Wear correct eye, ear, and body protection.

    p

    ##################### ~

    ~ .

    ############################ ' MOVING PARTS can cause injury.

    ####################################### Keep away from pinch points such as drive rolls.

    Keep all doors, panels, covers, and guards closed and securely in place.

    MAGNETIC FIELDS FROM HIGH CUR RENTS can affect pacemaker operation. Pacemaker wearers keep away. Wearers should consult their doctor before going

    ################# I

    rer s instructions for material used

    can cause fire or explosion. Do not weld near flammable material. Watch for fire; keep extinguisher nearby. Do not locate unit over combustible surfaces. Do not weld on closed containers. Allow work and equipment to cool before handling.

    ~ L_

    near any welding operations.

    ###################################### See Safety Precautions at beginning of manual for ba. sic welding safety information. ~arn3

    1 10/91

    1 Insulating Gloves 1 2 3

  • 2 Safety Glasses With Side Shields
  • 3 Welding Helmet
  • ~~

    /

    Wear dry insulating gloves, safety glasses with side shields, and a welding helmet with a correct shade of filter (see ANSI Z49.1).

    sb3.1 10/91

    ############################### Figure 4-1. Safety Equipment

    1 Work Clamp 1

    Page 14

    Use wire brush or sandpaper to clean metat at weld joint area.

    ~

    Connect work clamp to a clean, paint.free location on workpiece, as close to weld area as possible.

    ##################################### 2 Voltage Sensing Cable

    ####################################### Clamp

    For 115 volt weld controls only, Tools Needed:

    ####################################### connect to work clamp for constant current (CC) operations (see weld control Owner s Manual).

    ################ ~

    sb4.1 10/91 Ref. 50 144 451.A

    ############################## Figure 4-2. Work And Voltage Sensing Cable Clamps

    ![image 17](o1213b_mil_images/imageFile17.png)

    ###################################### 1 Trigger

    Press trigger to energize welding power source contactor (if applica ble), start shielding gas flow, and begin wire feed.

    For shielding gas preflow and postflow, lightly press trigger before and after welding.

    ###################################### 2 Trigger Hold Button

    Use button to continually feed wire without holding down the trigger.

    Press button while pressing the trigger, release trigger, and wire continues to feed until trigger is pressed again.

    ####################################### 3 Wire Speed Control

    Use control to adjust wire feed speed. The numbers in the opening are not a wire feed speed and are for reference only.

    Ref. SB-147 741-A

    Figure 4-3. Controls

    ############ I_____________________________________________________________________

    BUILDUP OF SHIELDING GAS can harm health or kill.

    ###################################### Shut off shielding gas supply when not in use.

    warnl.1 9/91

  • 1 Shielding Gas Cylinder
  • 2 Valve
  • 3 Gun Trigger
  • Open valve on cylinder just before welding. Purge air from gas line by !ightly pressing gun trigger. Close valve on cylinder when fin.

    shed welding. sb5.1 1/92 S-0821-C I Ref. S8-i47 741.A

    ############################# Figure 4-4. Shielding Gas

    1 Coolant Supply Turn on coolant supply before welding. Turn off coolant supply when fin ished welding.

    1

    ,-~.

    ~

    s

    ~ e~e

    ############# O fi

    Rłf. ST 150 755-_.-

    ############################## Coolant Supply For Water-Cooled Models Only

    ############################### Figure 4-5

    .

    )~noD~AndWater IConnectPersonalSafetyOnWeldControlOnGun/Feeder

    ######## Con~y \

    Page 15

    ######### ))

    ######### )

    ######### )

    Put On \

    Set Controls

    Set

    Install &

    Turn On Gas

    ############## )

    (If Applicable))EquipmentEquipmentJ

    ########## )

    Do \ Readjust Controls Sample Weld 1 And Prepare}JForProductionj

    Figure 4-6. Sequence Of Gas Metal Arc Welding (GMAW) - Continuous Or Spot

    ![image 18](o1213b_mil_images/imageFile18.png)

    ################### SECTION 5 MAINTENANCE & TROUBLESHOOTING

    ###################### AA WARNING

    ###################################### ELECTRIC SHOCK can kill. Do not touch live electrical parts.

    HOT PARTS can cause severe burns. Allow cooling period before servicing gun or unit.

    Turn OFF wire feeder and welding power source, and disconnect input power before inspecting, maintaining, or servicing. Stop engine on welding generators.,

    MOVING PARTS can cause injury. Keep away from moving parts. Keep away from pinch points such as drive rolls.

    ance to be performed only by qualified

    w~warn41* 9/91

    ################################# 5-1. Routine

    ################################# Maintenance

    ###################################### Table 5-1. Maintenance Schedule

    Time Maintenance

    Before each use Check gun parts for looseness, cracks, and breaks; tighten, repair, and replace parts as re quired. Carefully clean weld spatter or dirt from~round nozzle opening using a hardwood stick, never a metal tool.

    Every month Above normal equipment use: Repair any damaged insulation or replace gun cable or work cable, clean internal parts (see 6 month entry), clean and tighten connections at gun cable and work clamp.

    Every 3 months Repair cable insulation damage or replace gun cable or work cable. Clean and tighten gun cable

    and work clamp connections.

    Every 6 months Remove unit outer enclosure to blow out or vacuum dust and dirt from inside using a clean, dry

    airstream or vacuum suction.

    ########################### 5-2. Changing Contact Tube And Liner

    a WARNING ELECTRIC SHOCK, MOVING PARTS, AND HOT PARTS H

    AZARDS. Read safety infor

    mation at beginning of Section 5 before proceeding.

    Turn OFF weld control and welding power source.

    , Remove top cover and open pres sure roll assembly as shown in Figure 5-2.

  • 1 Contact Tube Wrench
  • Insert wrench into nozzle over con tact tube.

  • 2 Compression Nut Loosen nut. Pull out contact tube.
  • 3 Contact Tube
  • 4 Nozzle Pull wire out nozzle and liner should slide out. If necessary, tilt
  • Page 16

    3

    4 nozzle down to remove liner. Close pressure roll assembly. Re install top cover. Install new liner and contact tube

    ############################################ Tools Needed: over wire. Cut off wire at end of con

    tact tube.

    #################################### Tighten nut just until contact tube is secure. Overtightening nut will damage adapter. ST.150 437

    Figure 5-1. Changing Contact Tube And Liner

    OM-1213 Page 10

    ![image 19](o1213b_mil_images/imageFile19.png)

    ########################### 5-3. Changing Or Cleaning Drive Roll

    a WARNING ELECTRIC SHOCK, MOVING PARTS, AND HOT PARTS HAZARDS. Read safety infor

    mation at beginning of Section 5 before proceeding.

    Turn OFF weld control and welding power source.

  • 1 Top Cover
  • 2 Pressure Roll Assembly
  • Cut oft wire where it enters pres sure roll assembly area.

  • 3 Setscrew
  • 4 Current Pick-Up Tab
  • This tab helps prevent burnback caused by welding arcs inside the contact tube. This tab may be re moved to provide an insulated drive roll. (If tab is removed, a smaller diameter contact tube is recommended. See options in Parts List.) Lightly grease top of tab before reinstalling.

  • 5 Motor Shaft
  • 6 Drive Roll
  • Use wire brush to clean drive roll. Install drive roll with desired groove down, and turn drive roll so one set screw faces flat side of shaft.

  • 7 Bearing
  • 8 Liner
  • Line up drive roll groove with bear ing groove and liner opening. Tigjit en setscrews.

    Tools Needed:

    Thread welding wire (see Section 3-2). Adjust drive roll pressure, if necessary (see Section 3-9). Close and secure pressure roll as sembly. Reinstall top cover.

    5/16 in.

    Pet. ST-t49 967-A

    Figure 5-2. Removing Drive Roll

    ########################## 5-4. Replacing Or Cleaning Drive Roll Bearing

    ############################ a WARNING ELECTRIC SHOCK, MOVING PARTS, AND HOT PARTS HAZARDS. Read safety Infor

    mation at beginning of Section 5 before proceeding.

    ############################## Figure 5-3. Removing Drive Roll Bearing

    OM-1213 Page 11

    ![image 20](o1213b_mil_images/imageFile20.png)

    ########################## 5-5. Replacing Canister Inlet Guide

    a WARNING ELECTRIC SHOCK, MOVING PARTS, AND HOT PARTS HAZARDS. Read safety infor

    mation at beginning of Section 5 before proceeding.

    Turn OFF weld control and welding power source. I Top Cover

  • 2 Pressure Roll Assembly
  • Cut oft welding wire where it enters pressure roll assembly area.

  • 3 Nozzle Pull wire out nozzle.
  • 4 Thumbscrew
  • 5 Canister Cover
  • Loosen thumbscrew and remove cover.

    Page 17

  • 6 Wire Spool
  • 7 Spool Brake Thumbnut Loosen thumbnut, retract wire onto spool, secure, and remove spool.
  • 8 Canister Inlet Guide
  • 7

    Turn counterclockwise to remove. Install new guide. Reinstall spool and thread welding wire (see Section 3-2).

    Adjust spool brake pressure and drive roll pressure if necessary (see Section 3-9).

    8

    Close pressure roll assembly. Re install canister cover and top cover.

    Tools Needed:

    Ref ST-i 50436/Ret. ST-149 967

    ############################### Figure 5-4. Removing Canister Inlet Guide

    ########################### 5-6. Replacing Spool Canister

    a WARNING ELECTRIC SHOCK, MOVING PARTS, AND HOT PARTS HAZARDS. Read safety infor

    mation at beginning of Section 5 before proceeding.

    Turn OFF weld control and welding power source.

  • 1 Top Cover
  • 2 Pressure Roll Assembly
  • Cutoff welding wire where it enters pressure roll assembly area.

  • 3 Nozzle Pull wire out nozzle.
  • 4 Spring Plunger Thumbscrew Turn thumbscrew counterclock wise three full turns.
  • 5 Spool Canister Remove as shown. Push new can ister into wire drive housing until fully seated. Tighten thumbscrew.
  • 1

    Install spool and thread welding wire (see Section 3-2).

    2

    Adjust spool brake pressure and drive roll pressure as necessary (see Section 3-9).

    Close pressure roll assembly. Re install top cover and canister cover.

    Tools Needed:

    Ref. ST-i 49 967

    ############################### Figure 5-5. Removing Canister

    ![image 21](o1213b_mil_images/imageFile21.png)

  • 5-7. Replacing Contact Tube Adapter
  • A. Air-Cooled Models
  • a WARNING ELECTRIC SHOCK, MOVING PARTS, AND HOT PARTS HAZARDS. Read safety infor

    mation at beginning of Section 5 before proceeding.

    Figure 5-6. Removing Contact Tube Adapter

  • B. Water-Cooled Models
  • a WARNING

    WATER IN GUN PARTS can cause ELECTRIC SHOCK and can lower weld quality. Turn OFF welding power source and water supply before working on gun. Stop engine on welding generators.

    Always point gun downward when removing water-cooled barrel to keep water out of gun parts. Wipe gun dry before putting it back together.

    Turn OFF weld control and welding power source.

  • 1 Nozzle
  • 2 Nozzle Adapter Remove as shown.
  • 3 Contact Tube Adapter Use wrench to remove adapter.
  • Tools Needed:

    Coat new adapter with threadlock. ing compound (such as Loctite No.

    Page 18

    F ~

    242) and install.

    ST-ISO 431

    Figure 5-7. Removing Contact Tube Adapter

  • 5-8. Troubleshooting
  • Turn OFF weld control and welding power source.

    6

  • 1 Barrel Extension Remove as shown.
  • 2 Contact Tube
  • 3 Compression Nut To remove, see Section 5-2.
  • 4 Contact Tube Adapter
  • 5 Head Tube
  • 6 Head Tube Setscrew
  • 5

    4

    Loosen setscrews and remove adapter.

    Tools Needed:

    ##### F ~~ ~ 3/32in.

    Install new adapter and tighten set screws. Reinstall contact tube, compression nut, and nozzle.

    ST.150 430-A

    ######################## 4~ WARNING

    OVING PARTS can cause Injury. Keep away from moving parts. Keep away from pinch points such as drive rolls.

    ELECTRIC SHOCK can kill. Do not touch live electrical parts. Turn OFF welding power source, and disconnect

    M

    ,.~

    ~

    input power before inspecting, maintaining, or servicing. Stop engine on welding generators.

    ##################################### HOT PARTS can cause severe burns. Allow cooling period before or servicing gun or unit.

    Troubleshooting to be performed only by qualified persons. Swarn9.2 10/91

    OM-1 213 Page 13

    ![image 22](o1213b_mil_images/imageFile22.png)

    ################################ Table 5-2. Welding Trouble

    Trouble Remedy Section

    ############################## No weld output; gun/feeder does not work.

    ################################## Secure weld control pug in 115 volts ac receptacle.

    Place POWER switch on welding power source in the ON posi tion.

    Erratic weld output. Tighten and clean all connections. Pressing gun/feeder trigger does not energize weld control; welding wire is not energized; shielding gas does not flow.

    Secure plug from gun/feeder trigger cord into 10-socket receptacle on weld control.

    3-5

    Wire does not feed; burnback in contact tube.

    Reinstall current pick-up tab if applicable. 5-3

    Secure contact control cable leads in weld control (see weld control Owner s Manual).

    Page 19

    Wire feeds, shielding gas flows, but welding wire is not energized.

    ############################### See Troubleshooting section in welding power source Owner s Manual.

    ############################### Wire feeds erratically. Check and correct drive roll pressure. Clean drive roll or replace drive roll. Decrease spool brake pressure.

    3-9 5-3 3-9

    ################################ Gun overheating (Water-cooled Models).

    Be sure coolant flowrate is at least 1 qt./min.

    .

    Corrosion buildup in gun/feeder decreasing coolant flowrate. Backflush coolant system, clean coolant system filter, and clean fittings.

    ####################################### 3-8

    ![image 23](o1213b_mil_images/imageFile23.png)

    ################### ELECTRICAL DIAGRAMS

    #################### SECTION 6

    GUN ASSEMBLY

    PULL MOTOR

    Cw

    TRIGGER

    -o o

    ######################################## PB I

    I

    L_

    ########################################## / D

    ########################################## PLG2 E

    B C A

    F

    G H

    J ~

    V

    V

    CORD #1

    ######################################### CORD 2

    SA-138 956-A

    ############################## Figure 6-1. Circuit Diagram For Gun/Feeder

    HOUSING

    SB-139 060-A

    ############################## Figure 6-2. Wiring Diagram For Gun/Feeder

    ![image 24](o1213b_mil_images/imageFile24.png)

    ################################# (I) ii C)-I 0 z -4 -ICl) r Cl)-l

    116-B

    50

    ST-143

    51

  • 46
  • 105

    Page 20

  • 47
  • 56 62

    63

    52

    40

    44

    64

    55 56 57 58

    65

    66

  • 34
  • 35
  • 36
  • 3233

    67

    31

    Assembly

    7

  • 9
  • 10
  • 69

    &

    55

    Main

    Item

    *Inctudes

    7-1.

    ###### Figure

    71

    89

    106

    90

    93~92

    108

    91

    0 C~) -U cD 0)

    ![image 25](o1213b_mil_images/imageFile25.png)

    Item Dia. Part

    ################################ No. Mkgs. No. Description Quantity

    Figure 7-1. Main Assembly

    ..COVER 1 SPRING, closure cover 1 STRAIN RELIEF, cable 1 HOSE, water in (30W model only) (consisting of) 1 HOSE, gas in (consisting of) 1

    133479 135196 133362 137475 137472 056851 010607 010606 056108 134834 089 120

    .2

    Page 21

  • FITTING, hose brs barbed nipple 3/l6tbg 1 FITTING, hose brs nut .625-18LH (water hose) 1 FITTING, hose brs nut .625-18RH (gas hose) 1 FITTING, hose brs ferrule .425 ID x .718 Ig 1 HOSE, SAE .187 ID x .410 OD (order by ft) 31ft CLAMP, hose .375-.450c1p dia slfttng 1 FITTING, hose brs coupler .625-18LHI.625-18LH (30W model only) 1 HOSE, water (30W model only) (consisting of) 2
  • FITTING, hose brs barbed nipple 3/l6tbg 2 FITTING, hose brs nut .625-18LH 2 FITTING, hose brs ferrule .425 ID x .718 Ig 2 HOSE, SAE .187 ID x .410 OD (order by ft) lOft
  • 057 020 000 571 056 851 010 607 056 108 134 834 048 837 010 603 010 606 056 112 603 106 000 950 138 459 146 212 138 033 053 212 137 477 073 476 137 479 600 722 600318 127 893
  • 152 577 137 495 141 694
  • 058 685 602 172 136 730 134 800

  • 132 985 134 799 152 579
  • 152 578

  • 133 365 000 417 143 836 008 033 604612 602 169 136 135 602 066 602 198 146 558 132 270
  • 134 624 134 623 132 852
  • HOSE, gas (consisting of) 1 FITTING, hose brs barbed nipple 1/4tbg 2 FITTING, hose brs nut .625-18RH 2 FITTING, hose brs ferrule .475 ID x .718 Ig 2 HOSE, nprn brd No. 1 x .250 ID (order by ft) lOft

    ###################################### .8

    ############################### FITTING, hose brs coupler .625-18RH/.625-18RH 1 CABLE, control (consisting of) 1

  • 10
  • .

  • 11
  • .

  • 12
  • PLG2

  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • PLUG, 10 pin MS-3106A-18-1PX 1 CLAMP, cable 97-3057-1010 1 CABLE, port No. 18 4/c (order by ft) 63ft

    CABLE, power/water out 30ft (30W model only) 1 CLAMP, strap rbr 5 holes .375 wide x 4.625 Ig 13 CABLE, power (30A model only) (consisting of) 1

    TERMINAL, ring tng .500 stud No. 4 cable 1 CABLE, weld cop strd No.3 (order by ft) 31ft

    ############################## RING, crimp cable 1 STRIP,cop.010x2.000x.750 1

    FITTING, connection power weld (30A model only) 1 SCREW, set stl sch .312-18 x .375 cone point (30A model only) 1 NUT, jam nozzle extension (30A model only) 1 SCREW, set stl sch 10-32 x .187 cup point (30A model only) 1 ADAPTER, tube head (30A model only) 1 0-RING, .614 ID x .070 CS 2 MANIFOLD, water (30W model only) 1 0-RING, .176 ID x .070 CS (30W model only) 2 HOUSING, wire drive (XR-A models only) (Includes Items 55 & 69) ...

  • 19
  • 20
  • 21
  • 22
  • 23
  • ################################ 1 HOUSING, wire drive (XR-W models only) (Includes Items 55 & 69) ...

  • 23
  • 24
  • 1 CLAMP, headtube 1 SCREW, cap stl sch 10-24 xl .000 2 SPRING, cprsn .445 OD x .023 wire x .370 1 WASHER, flat felt .234 ID x .500 OD x .O93thk 1 SCREW, set stl sch 8-32 x .125 cup point (30A model) 4 SCREW, set stl sch 8-32 x .187 cup point (30W model) 1 ROLL, drive VK groove .023-1/16 wire 1 SCREW, mach stl trh 6-32 x .250 3 WASHER, lock stl split No. 6 1 KIT, current pick-up contact 1 SCREW, mach stl rdhph 6-32 x .500 1 BEARING, fig nyl .140 ID x .187 OD x .375f1g x .O3lthk 2 BEARING 1 ARM, pressure 1

    25

  • 26
  • 27
  • 28
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • Page 22

  • 34
  • 35
  • ###################################### 36

    ![image 26](o1213b_mil_images/imageFile26.png)

    Part No.

    Item Dia. No. Mkgs.

    Description Quantity Figure 7-1. Main Assembly (Continued)

    .. WASHER, shldr nyl .375 OD x .168 ID x .080 2

  • 37 605 798
  • .. SPRING, tension adj drive roll 1

    38 133 083

    ..

    .. SCREW, mach sti flh 8-32 x .437 1

    39 144 860

    ..

    ################################## .. RING, retainer E 2

    40 058 968

    ..

    ############################## .. PIN, hinge 1

    41 135474

    ..

  • 42 602 209
  • .. WASHER, lock stl intl tooth .250 1

  • 43 132 530
  • ..

    ################################# .. SCREW, mach sti phtrh .250-20 x .500 1

    ################################# .. CANISTER, spool 1

    44 132 527

    .

    ############################### .. POST, support spool 1

    45 148 488

    .

  • 46 132 529
  • .. PAD, brake 1

  • 47 148 489
  • ..

    ################################### .. WASHER, anti-turn 1

    ################################### .. NUT, thumb brake 1

    48 132 524

    ..

    ################################## .. RING, retainer ext .188 shaft x .O2Sthk 1

    49 000 364

    Page 23

    ..

  • 50 132 528
  • .. SCREW, thumb canister 1

  • 51 132 526
  • ..

    ################################# .. COVER, spool 1

    . GUIDE, inlet canister 1

    52 132 521

    .

    ################################ .. SCREW, thumb spring ptunger 1

    53 135 498

    ..

    .. SCREW, set stl sch 6-32 x .125 cup point 1

    54 135 126

    .

    .. FITTING, gas (30A model) 1 55 135 580

    55 135 580

    ..

    ################################# .. FITTING, gas (30W model) 2

  • 56 112 896
  • .. SPRING, cprsn .240 OD x .020 wire x .437 2

  • 57 135 773
  • ..

    ############################### .. NUT, thumb tension adjusting 8-32 1~

    .. SCREW, mach stl rdh 8-32 x .500 1

    58 602 082

    ..

  • 59 604 638
  • .. SCREW, cap stl sch 6-32 x .375 3

  • 60 136 128
  • ..

    ################################### .. CASE, gun LH 1

  • 61 135 646
  • .. SCREW, mach stl rdhph 8-32 x 1.500 2

  • 62 135 896
  • ..

    ################################ .. PLUNGER, trigger hold 1

  • 63 135 645
  • .. SCREW, mach sti rdhph 8-32 x .875 1

  • 64 136 679
  • .. CLAMP, strain relief 1

    Page 24

  • 65 132 269
  • .. SCREW, mach sti rdhph 8-32 x .375 1

  • 66 B2
  • .. .

    134 248

    .. MOTOR, gear PM 24VDC 42ORPH 10.2:1 ratio 1

  • 67 133 373
  • ..

    TRIGGER 1

  • 68 135 473
  • .. BUSHING, shaft motor 1

  • 69 058 262
  • ..

    CAP 1

  • 70 135 128
  • .. SCREW, cap stl sch 6-32 x 1 .000 (30W model only) 2

  • 71 137 042
  • ..

    BARREL ASSEMBLY, water cooled (30W model only) (consisting of) .

    1

  • 72 134800
  • .... 0-RING, .614IDx.O7OCS 2

  • 73 136955
  • .... FITTING, endtubehead 1

  • 74 136956
  • .... TUBE,head 1

  • 75 136943
  • .

    ################################## .... TUBING,teflon 1

    ################################# .... WASHER,fbr.594IDx.8750Dx.l25thk 1

    .76 136834

  • 77 134 801
  • . . . . 0-RING, .926 ID x .070 CS 4

  • 78 137 041
  • . . . . BARREL, outer I

  • 79 136 836
  • . .. . INSULATOR, head tube from adapter 1

  • 80 136 835 WASHER, flat brs .390 ID x .687 OD x .l25thk 1
  • 81 136 680
  • ... . ADAPTER, contact tube 1

  • 82 136 683
  • . LINER, telfon .045-1/6 wire x 6.875 Ig 1

  • 83 136 748
  • Page 25

    ... . NUT, compresson .375-24 1

  • 84 135 424
  • ... . TUBE, contact .047-.061 wire 1

  • 85 136 833
  • ... . NUT, jam adapter 1.000-8 1

  • 86 136 832
  • . . . ADAPTER, nozzle 1 050 622

    .. . NOZZLE, 5/8 orf x 1-5/8 Ig 1

  • 87 oo~ 925
  • .. NOZZLE, spot outside corner .937 ID x 2.375 1

  • 88 050 116
  • .. NOZZLE,13/16 orf x 1-5/8 Ig 1

  • 89 050 115
  • .. NOZZLE, 1/2 orfx 1-5/Big 1

  • 90 050 622
  • .. NOZZLE, 5/8 orf x 1-5/8 Ig 1

  • 91 ooo 442
  • ################################## .. NOZZLE, spot 1 OM-1213 Page 18

    ![image 27](o1213b_mil_images/imageFile27.png)

    ################################## Item Dia. Part No. Mkqs. No. Description Quantity

    ############################### Figure 7-1. Main Assembly (Continued)

    ################################## . NOZZLE, spot 1

    92 004 466

    . .

    NOZZLE, spot inside corner EXTENSION, nozzle (30A model only) EXTENSION, barrel 2.875 Ig (30A model only) TUBE, contact .025/31 wire

    ooo 443

  • 93
  • .

  • 94
  • 95
  • .

  • 96
  • 1 1 1 1

    .

    . .

    ####################################### 144 862

    .

    053 785 136 171

    ################################### 96 135 427 TUBE, contact .030/36 wire 1

    .

    . . TUBE, contact .030/41 wire 1

    96 135 428

    Page 26

    .

    ################################## .. TUBE,contact.035/41 wire 1 96 135 430 TUBE, contact .035/52 wire 1 96 135 429 TUBE, contact .047/52 wire 1

    96 147314

    ..

  • 96 135 424
  • . TUBE, contact .047/61 wire 1 96 135 426

    . TUBE, contact .062/73 wire 1

  • 96 135 425
  • . TUBE, contact .062/81 wire 1 136 821

    . . WRENCH, nut tube contact 1

  • 97
  • 98
  • 98
  • 99
  • 100
  • 101
  • . .

    R4

    136 748 136 683 136 682

  • 136 680
  • .

  • 136 681
  • .

    137 854

    . NUT, compression .375-24

    LINER, teflon .045-1/16 wire x 6.875 Ig . LINER, teflon .023-035 wire x 6.875 Ig

    . ADAPTER, contact tube (30A model only) TUBE, head (30A model only) POTENTIOMETER, C sltd sft l/T .5W 10K ohm

    1 1 1 1 1 1

  • 102 144 861 WASHER, anti-turn 1
  • 103
  • 104
  • 105
  • SCREW, set stl sch 8-32 x .187 cup pt. KNOB, speedcontrol 1-10 .l40shaftxl.125OD LOCK, shaft pot .250-32 x .l25dia shaft

    602 169

  • . 134856.. 135 127
  • 1 1

    CASE, gun RH SWITCH, lim 1OA 125/25OVAC DPST plgr . SPRING, cprsn .240 OD x .024 wire x 1.000

    ###################################### 136127 000 369 118 774 135 647

  • 106
  • 107
  • ...

  • 108
  • Page 27

  • 109
  • 1 1 1 3

    .

    PB1

    ..

    .

    .

    . NUT, stl 8-32

    .

    .

    OPTIONAL

    BE SURE TO PROVIDE MODEL AND SERIAL NUMBER WHEN ORDERING REPLACEMENT PARTS.

    ![image 28](o1213b_mil_images/imageFile28.png)

    ########################### OPTIONS AND ACCESSORIES

    (#144 856) .047 and 1/16 in.

    REPLACEMENT CONTACT TUBES FOR CURVED NOZZLE

    ############################### FOR AIR-COOLED MODELS SX FLEX HEAD KIT

    (1.2 and 1.6 mm) wire GUN OPTIONS CABLE COVER

  • (#148 155) .030 and .035 in. (0.8 and 0.9 mm) wire
  • (#148 154) .047 in. (1.2 mm) wire

  • (#148 156) 1/16 in. (1.6 mm) wire
  • (#131 104) For .030 in. through 1/16 in. (0.8 mm through 1.6 mm) wire. Used in place of the standard straight barrel, this uniquely designed flexible head tube allows the operator to bend the flex head 60 degrees in any direction for easier joint access and improved operator comfort. The SX Flex Head is supplied with two Teflon liners and one contact tube for each wire size listed. REPLACEMENT LINERS FOR FLEX HEAD

    (#118 678) Protects gun hose and cable assembly from wear and abrasion. Features a full-length zipper. Cover can be removed it cable service is required. SX HEAT SHIELD

    #################################### 3 IN. HEAD TUBE EXTENSION

    (#137 787) Used to extend the standard gun barrel 3 in. (72 mm) when a longer reach is required. The head tube extension is supplied with two liners to accommodate all wire sizes.

    ################################ (#131 103)

    ############################### Helps protect operator s hand from

    spatter and reflected heat. 1 LB. SPOOL CANISTER Standard on Spoolmatlc guns

    REPLACEMENT LINERS FOR HEAD TUBE EXTENSION

  • (#138 223) .030 and .035 in.
  • (0.8 and 0.9 mm) wire
  • (#138 224) 3/64 and 1/16 in.

  • (1.2 and 1.6 mm) wire
  • (#138 255) .030 and .035 in.

    ################################ (#132 230)

    ############################### (0.8 and 0.9 mm) wire

    Ideal for use with XR guns if a small

    (#132 682) 3/64 and 1/16 in.

    job arises requiring a different wire size and/or wire type that does not justify a 12 in. spool of wire. The XR

    ################################ (1.2 and 1.6 mm) wire

    NOTE: The 3 In. head tube uses standard Spoolmatic contact tubes.

    Page 28

    NOTE: The flex head uses standard Spoolmatic contact tubes.

    feed cable is removed if the spool canister is being used. (Canister accommodates 4 in. spools of wire.) OPTIONAL FEED CABLE WITH STEEL LINER

    FOR WATER-COOLED MODELS SX-W 50 DEGREE CURVED BARRELS

    SX-A 50 DEGREE CURVED BARRELS

  • (#147 175) 6 in. (152 mm)
  • (#147 176)10 in. (254 mm)
  • Used with .030 through 1/16 in. (0.8 through 1.6 mm) wire. Kits supplied with two liners that accommodate all wire sizes. Uses standard contact tubes.

    (#130 843) 6 in. (152 mm) (#130 842)10 in. (254 mm)

  • (#121 001)15 ft. (4.6 m)
  • (#121 002)30 ft. (9.1 m)
  • Used with .030 through 1/16 in. (0.8 through 1.6 mm) wire. Kits supplied with two liners that accommodate all wire sizes. Uses standard contact tubes. SX-W 10 IN. STRAIGHT BARREL

    Recommended when using .030 through .045 in. (0.8 to 1.1 mm) mild steel, flux-cored, or stainless steel electrode wire.

    REPLACEMENT TEFLON LINERS FOR CURVED BARRELS For 6 In. Barrel

    SPOOLMATIC HOSE AND CABLE EXTENSION KITS For Spoolmatlc-30A, Air-Cooled Model

  • (#144 858) .030 and .035 in.
  • (0.8 and 0.9 mm) wire
  • (#144 859) .047 and 1/16 in.

  • (1.2 and 1.6 mm) wire
  • (#130841) Used with .030 through 1/16 in. (0.8 through 1.6 mm) wire. Kits supplied with two liners that accommodate all wire sizes. Uses standard contact tubes.

  • (#132 228) 25 ft. (7.6 m)
  • (#132 229)50 ft. (15.2 m)
  • ##################################### For 10 In. Barrel

    For Spoolmatlc-30W, Water-Cooled Model

  • (#144 854) .030 and .035 in.
  • (0.8 and 0.9 mm) wire
  • (#144 855) .047 and 1/16 in.

  • (1.2 and 1.6 mm) wire
  • REPLACEMENT TEFLON LINERS FOR OPTIONAL WATER BARRELS For 6 In. Curved Barrel

  • (#132 226) 25 ft. (7.6 m)
  • (#132 227) 50 ft. (15.2 m)
  • Attaches to the standard 30 ft. (9.1 m) hose and cable assembly to extend the Spoolmatic gun farther from the WC weld control. Convenient plug

    ################################ (#144 858) .030 and .035 in.

    SX-A 50 DEGREE CURVED NOZZLE KIT

  • (0.8 and 0.9 mm) wire
  • (#144 859) .047 and 1/16 in.

  • (1.2 and 1.6 mm) wire
  • (#147 174) Attaches to standard gun barrel assembly and is ideal for access to confined weld joint areas. Used with .030 through 1/16 in. (0.8 through 1/6 mm) wire. Kit includes two of each size

    in connections. Includes gas hose, control cord, and weld power cable with International style insulated

    For 10 In. Curved Barrel

  • (#144 854) .030 and .035 in.
  • (0.8 and 0.9 mm) wire
  • (#144 855) .047 and 1/16 in.

  • (1.2 and 1.6 mm) wire
  • connector. (Kits for water-cooled guns include water in/out hoses.)

    contact tubes to accommodate all wire sizes. Uses standard straight barrel head tube liner.

    For 10 In. StraIght Barrel

    (#144 857) .030 and .035 in. (0.8 and 0.9 mm) wire

    1/92

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