Instruction/ maintenance manual of the product OM-948 Hobart Welding Products
Go to page of 24
Processes OM-948 213 220B May 2003 H-9 Gun Description MIG (GMAW) W elding (Optional) Flux Cored (FCA W ) W elding Semi-Automatic, Air-Cooled Flux Cored (FCAW) And MIG (GMA W) W elding Gun Visit our website at www.
Hobart W elders manufactures a full line of welders and welding related equipment. For information on other quality Hobart products, contact your local Hobart distributor to receive the latest full line catalog or individual catalog sheets. T o locate your nearest distributor or service agency call 1-877-Hobart1.
T ABLE OF CONTENTS SECTION 1 –SAFETY PRECAUTIONS FOR FCA W AND GMA W WELDING GUNS – READ BEFORE USING 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1. Symbol Usage 1 . . . .
.
OM-948 Page 1 SECTION 1 –SAFETY PRECAUTIONS FOR FCA W AND GMA W WELDING GUNS – READ BEFORE USING SR7_7/01 1-1. Symbol Usage Means Warning! Watch Out! There are possible hazards with this procedure! The possible hazards are shown in the adjoining symbols.
OM-948 Page 2 EMF INFORMA TION Th e following is a quotation from the General Conclusions Section of the U.S. Congress, Office of T echnology Assessment, Biological Effects of Power Frequency Electric & Magnetic Fields – Background Paper , OT A-BP-E-53 (W ashington, DC: U.
OM-948 Page 3 SECTION 2 – SAFETY INFORMA TION Read all safety messages throughout this manual. Obey all safety messages to avoid injury . Learn the meaning of W ARNING and CAUTION. 1 Safety Alert Symbol 2 Signal Word W ARNING means possible death or serious injury can happen.
OM-948 Page 4 3-3. Installing Gun Into Welding Power Source 803 497-A / Ref. 803 378-A Install cable end into drive housing with retaining ring between the two locating ribs. Position liner in groove so that black tubing end is flush with back of groove.
OM-948 Page 5 3-4. Threading Welding Wire 1 Wire Spool 2 Welding Wire 3 Inlet Wire Guide 4 Pressure Adjustment Knob 5 Drive Roll 6 Gun Cable Lay gun cable out straight. T ools Needed: 6 1 Pull and hold wire; cut off end. 4 in (102 mm) Remove gun nozzle and contact tip.
OM-948 Page 6 SECTION 4 – OPERA TION 4-1. Operating The Gun Ref. 803 495-A 1 T rigger Switch When pressed, energized wire feeds and shielding gas flows.
OM-948 Page 7 SECTION 5 – MAINTENANCE & TROUBLESHOOTING 5-1. Replacing Gun Contact Tip Ref. 803 496-B Y T u rn off welding power source. 1 Nozzle Remove nozzle. 2 Contact Tip 3 Tip Adapter Cut off welding wire at contact tip. Remove contact tip from tip adapter , and install new contact tip.
OM-948 Page 8 5-3. Replacing Gun Liner 803 496-B / 803 497-A Head T ube T ools Nee d e d : 8 mm / 10 mm Remove nozzle. Cut off wire at contact tip, and remove contact tip and tip adapter . 8 mm Open pressure assembly. Retract wire from liner onto spool.
OM-948 Page 9 5-3. Replacing Gun Liner (Continued) 8 mm When liner exits cable at gun handle, guide liner into head tube. Continue to push liner until it exits end of head tube. Lower top portion of handle onto bottom of handle. Slide locking ring over rear of handle, and secure with by twisting ring clockwise 1/4 turn.
OM-948 Page 10 5-4. Replacing Liner O-Ring 803 496-B / 803 497-A Head T ube T ools Nee d e d : 8 mm / 10 mm Remove nozzle. Cut off wire at contact tip, and remove contact tip and tip adapter . 8 mm Open pressure assembly. Retract wire from liner onto spool.
OM-948 Page 1 1 5-3. Replacing Liner O-Ring (Continued) 8 mm Push liner toward gun. If necessary , twist cable to ease installation. Guide liner into head tube. Continue to push liner until it exits end of head tube. Lower top portion of handle onto bottom of handle.
OM-948 Page 12 5-5. Replacing Switch And/Or Head T ube T ools N eeded: 8 mm, 1 1/16 in Remove nozzle, contact tip, and adapter . Secure head tube in vice. Loosen cable connector . Remove from vice and turn head tube out by hand. Hand-tighten head tube into cable connector .
OM-948 Page 13 5-6. Removing Gun From Welding Power Source 803 497-A / Ref. 803 378-A Pull weld cable, trigger leads, and gas hose through opening in drive housing. Pull gun cable out through opening in front panel. To reinstall gun see Section 3-3. Remove wrapper from unit.
OM-948 Page 14 5-7. Routine Maintenance Y T u rn Off welding power source before maintaining. Each Spool Of Wire Blow O u t Gun Casing Clean Nozzle And Check Contact Tip 3 Months Control Cord Gas Hose Gun Cable Replace Cracked Parts 5-8. T roubleshooting T rouble Remedy Wire does not feed; wire is not ener - gized; wire fee d s u n e v e n l y .
OM-948 Page 15 SECTION 6 – P ARTS LIST 1 803 499-B 2 3 6 4 8 – See T able 6-1 4 4 7 5 Figure 6-1. H-9 Gun Description Part No. 195 157 Item No. Figure 6-1. H-9 Gun Quanti ty 1 169 715 NOZZLE, slip type .500 orf flush 1 . . . . . . . . . . . . . . .
Notes W o r k l i k e a P r o ! Pros wel d and cut safel y . Read the safety rules at the begi nning of thi s m anual..
Notes.
Notes.
Warranty Questions? Call 1-877-HOBART1 for your local Hobart distributor. hobart retail 6/02 Service Y o u always get the fast, reliable response you need. Most replacement parts can be in your hands in 24 hours. Support Need fast answers to the tough welding questions? Contact your distributor or call 1-800-332-3281.
PRINTED IN USA 2003 Hobart Welding Products. 1/03 Hoba rt W elding Pr oducts An I l li noi s T ool Works Company 600 W est Main Street Troy , O H 45373 USA For T echni cal A ssistance: Call1-800-3.
An important point after buying a device Hobart Welding Products OM-948 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Hobart Welding Products OM-948 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Hobart Welding Products OM-948 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Hobart Welding Products OM-948 you will learn all the available features of the product, as well as information on its operation. The information that you get Hobart Welding Products OM-948 will certainly help you make a decision on the purchase.
If you already are a holder of Hobart Welding Products OM-948, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Hobart Welding Products OM-948.
However, one of the most important roles played by the user manual is to help in solving problems with Hobart Welding Products OM-948. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Hobart Welding Products OM-948 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
