Miller M-100 Owner's Manual
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Miller M-100 Owner's Manual

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M-100 Gun
OM-246 379A
2010−04
Processes
MIG (GMAW) Welding
Flux Cored (FCAW) Welding
Description
Semi-Automatic Air-Cooled MIG
(GTAW) Welding Gun
File: MIG (GMAW)

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Summary of Contents for Miller M-100

  • Page 1 OM-246 379A 2010−04 Processes MIG (GMAW) Welding Flux Cored (FCAW) Welding Description Semi-Automatic Air-Cooled MIG (GTAW) Welding Gun M-100 Gun File: MIG (GMAW) Visit our website at www.MillerWelds.com...
  • Page 2 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.

  • Page 3: Table Of Contents

    TABLE OF CONTENTS SECTION 1 −SAFETY PRECAUTIONS FOR GMAW WELDING GUNS − READ BEFORE USING ..1-1. Symbol Usage ............... 1-2.

  • Page 5: Section 1 −Safety Precautions For Gmaw Welding Guns − Read Before Using

    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 Indicates special instructions. not avoided, will result in death or serious injury.

  • Page 6: Proposition 65 Warnings

    1-3. Proposition 65 Warnings Welding or cutting equipment produces fumes or gases This product contains chemicals, including lead, known to which contain chemicals known to the State of California to the state of California to cause cancer, birth defects, or other cause birth defects and, in some cases, cancer.

  • Page 7: Section 2 − Installation

    Air-Cooled Welding Gun For GMAW And FCAW Welding Note: Using gasless flux cored wire reduces gun duty cycle. M-100 Feeds .023 To .045 in. (0.6 To 1.1 mm) Hard Or Flux Cored Wires Duty Cycle Rating: 100%: 100 A With CO...

  • Page 8: Installing Gun

    2-3. Installing Gun Gun Securing Knob Gun End Loosen knob. Insert gun end until it bottoms against drive assembly. Tighten knob. Gun Trigger Plug Insert into receptacle, and tighten threaded collar. Friction Terminals Some applications will require cutting off trigger plug and installing 0.250 female friction terminals onto end of leads.

  • Page 9: Section 4 − Maintenance & Troubleshooting

    SECTION 4 − MAINTENANCE & TROUBLESHOOTING 4-1. Removing Nozzle, Contact Tip, And Adapter, Changing Liner, And Cleaning Gun Casing Turn off welding power source/wire feeder. Nozzle Contact Tip Tip Adapter Head Tube Wire size stamped on tip − check and match wire size. Cut off wire and 8 mm disconnect gun...

  • Page 10: Replacing Switch And/Or Head Tube

    4-2. Replacing Switch And/Or Head Tube Turn Off welding power source /wire feeder and disconnect gun. Remove handle halves. Remove screws (5) and nuts (4). Remove switch housing. Install new Remove screw on switch and connect leads (polarity is opposite side. important).

  • Page 11: Routine Maintenance

    4-3. Routine Maintenance Turn Off welding power source and disconnect gun before maintaining. Each Spool Of Wire Clean Blow Out Nozzle And Check Casing Contact Tip 3 Months Replace Cracked Control Parts Cord Hose 4-4. Troubleshooting Trouble Remedy Wire does not feed; wire is not ener- Check contact tip.

  • Page 12: Section 5 − Parts List

    SECTION 5 − PARTS LIST 246 375-A Figure 5-1. M-100 Gun Item Dia. Part Mkgs. Description Quantity Figure 5-1. M-100 Gun ... . . 246 372 NOZZLE, slip type .500 orf flush .
  • Page 13 Notes Ref. AWS/ANSI D1.1 WELD JOINT TYPES GROOVE FILLET WELD POSITION: FLAT BUTT T−JOINT HORIZONTAL BUTT T−JOINT VERTICAL BUTT T−JOINT OVERHEAD BUTT T−JOINT Ref. 804 248-A − 9 −...
  • Page 14 Notes...
  • Page 15 Effective January 1, 2010 (Equipment with a serial number preface of MA or newer) This limited warranty supersedes all previous Miller warranties and is exclusive with no other Warranty Questions? guarantees or warranties expressed or implied. LIMITED WARRANTY − Subject to the terms and conditions 90 Days —...
  • Page 16 Contact the Delivering Carrier to: File a claim for loss or damage during shipment. For assistance in filing or settling claims, contact your distributor and/or equipment manufacturer’s Transportation Department. © ORIGINAL INSTRUCTIONS − PRINTED IN USA 2010 Miller Electric Mfg. Co. 2010−01...

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