Page 2 - From Miller to You
Miller Electric manufactures a full lineof welders and welding related equipment.For information on other quality Millerproducts, contact your local Miller distributorto receive the latest full line catalog orindividual catalog sheets. To locate your nearestdistributor or service agency call 1-800-4...
Page 3 - EMF INFORMATION
sr7 7/93 SAFETY PRECAUTIONS FOR GMAW GUNS WARNING PROTECT YOURSELF AND OTHERS FROM POSSIBLE SERIOUS INJURY OR DEATH. KEEP CHILDRENAWAY. 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...
Page 5 - SECTION 1 – SAFETY INFORMATION; NOTE; CAUTION; SECTION 2 – SPECIFICATIONS
OM-1036 Page 1 SECTION 1 – SAFETY INFORMATION mod1.1 2/93 Read all safety messages throughout this manual. Obey all safety messages to avoid injury. Learn the meaning of WARNING and CAUTION. 1 Safety Alert Symbol 2 Signal Word WARNING means possible deathor serious injury can happen. CAUTION means p...
Page 6 - Duty Cycle; SECTION 3 – INSTALLATION; Preparing And Installing Gun
OM-1036 Page 2 2-1. Duty Cycle CAUTION WELDING LONGER THAN RATED DUTY CYCLE can damage gun and void warranty. • Do not weld at rated load longer than shown below. wfwarn8.1 8/93 Duty Cycle is percentage of 10minutes that gun can weld atrated load without overheating. sb1.5* 8/93 0 10 Minutes M-40: 1...
Page 7 - SECTION 4 – OPERATION; SECTION 5 – MAINTENANCE & TROUBLESHOOTING; Months
OM-1036 Page 3 SECTION 4 – OPERATION READ SAFETY BLOCKS at beginningof manual before proceeding. WARNING 4-1. Operating The Gun Ref. ST-800 749-A 1 Trigger Switch When pressed, energized wirefeeds and shielding gas flows. 1 Figure 4-1. Using Gun Switch SECTION 5 – MAINTENANCE & TROUBLESHOOTING R...
Page 8 - Changing Contact Tip, Liner, And Head Tube
OM-1036 Page 4 Table 5-1. Troubleshooting Trouble Remedy Section Wire does not feed. Check contact tip. Check for kinks in gun cable. 5-2 Check gun trigger plug connection at welding power source/wirefeeder. 3-1 Check, and if necessary, replace gun trigger switch. 5-3 Wire is not energized. Check co...
Page 11 - Switch Replacement; Unicable Repair
OM-1036 Page 7 5-3. Switch Replacement ST-800 750 1 Switch Housing 2 Screw Remove both mounting screwsfrom switch housing. 3 Switch 4 Switch Leads Carefully pull up on leads to removeswitch from housing. 5 Switch Lead Connectors Remove switch lead connectorsfrom switch terminals and discardold switc...
Page 12 - SECTION 6 – PARTS LIST
OM-1036 Page 8 SECTION 6 – PARTS LIST 1 ST-800 748-A 2 3 45 67 8 9 10 11 13 14 15 16 18 19 20 21 22 24 17 25 26 27 15 16 17 25 28 11 10 23 *Includes Item 17 12* Figure 6-1. M-40 Gun
Page 14 - Notes
Page 15 - (Equipment with a serial number preface of “LA” or newer)
Warranty Questions? Call1-800-4-A-MILLERfor your localMiller distributor. miller_warr 7/00 Your distributor also givesyou ... ServiceYou always get the fast,reliable response youneed. Most replacementparts can be in yourhands in 24 hours. SupportNeed fast answers to thetough welding questions?Contac...
Page 16 - Please complete and retain with your personal records.; For Service
PRINTED IN USA 2000 Miller Electric Mfg. Co. 6/00 Miller Electric Mfg. Co. An Illinois Tool Works Company1635 West Spencer StreetAppleton, WI 54914 USA International Headquarters–USAUSA Phone: 920-735-4505 Auto-AttendedUSA & Canada FAX: 920-735-4134International FAX: 920-735-4125 European Head...