Instruction/ maintenance manual of the product OM-353 Hobart
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Cybertig Processes Description TIG (GT A W ) W elding Stick (SMA W) W elding Arc Welding Power Source OM-353 122200U November 2000.
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.
The following terms are used interchangeably throughout this manual: TIG = GT AW Stick = SMAW T ABLE OF CONTENTS SECTION 1 – SAFETY PRECAUTIONS - READ BEFORE USING 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1. Symbol Usage 1 . . . .
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OM-353 Page 1 SECTION 1 – SAFETY PRECAUTIONS - READ BEFORE USING som _nd_4/98 1-1. Symbol Usage Means W arning! W atch Out! There are possible hazards with this procedure! The possible hazards are shown in the adjoining symbols. Y Marks a special safety message.
OM-353 Page 2 Arc rays from the welding process produce intense visible and invisible (ultraviolet and infrared) rays that can burn eyes and skin. Sparks fly off from the weld. ARC RA YS can burn eyes and skin. D Wear a welding helmet fitted with a proper shade of filter to protect your face and eyes when welding or watching (see ANSI Z49.
OM-353 Page 3 1-3. Additional Symbols For Installation, Operation, And Maintenance FIRE OR EXPLOSION hazard. D Do not install or place unit on, over , or near combustible surfaces. D Do not install unit near flammables. D Do not overload building wiring – be sure power supply system is properly sized, rated, and protected to handle this unit.
OM-353 Page 4 1-5. EMF Information Considerations About Welding And The Ef fects Of Low Frequency Electric A n d M a g netic Fields W elding current, as it flows through welding cables, will cause electro- magnetic fields. There has been and still is some concern about such fields.
OM-353 Page 5 SECTION 1 – CONSIGNES DE SECURITE – LIRE A V ANT UTILISA TION som _nd_fre 4/98 1-1. Signification des symboles Signifie Mise en garde ! Soyez vigilant ! Cette proc é dure pr é sente des risques de danger ! Ceux-ci sont identifi é s par des symboles adjacents aux directives.
OM-353 Page 6 Le rayonnement de l ’ arc du proc é d é de soudage g é n è re des rayons visibles et invisibles intenses (ultraviolets et infrarouges) susceptibles de provoquer des br û lures dans les yeux et sur la peau. Des é tincelles sont projet é es pendant le soudage.
OM-353 Page 7 1-3. Dangers suppl é mentaires en relation avec l ’ installation, le fonctionnement et la maintenance Risque D ’ INCENDIE OU D ’ EXPLOSION. D Ne pas placer l ’ appareil sur , au-dessus ou à proxi- mit é de surfaces infllammables.
OM-353 Page 8 1-4. Principales normes de s é curit é Safety in W elding and Cutting, norme ANSI Z49.1, de l ’ American W el- ding Society , 550 N.W . Lejeune Rd, Miami FL 33126 Safety and Health Sandards, OSHA 29 CFR 1910, du Superintendent of Documents, U.
OM-353 Page 9 SECTION 2 – DEFINITIONS 2-1. W arning Label Definitions S-176 254-A 1 1.1 1.2 1.3 3 3.1 3.2 3.3 4 4.1 + 2 2.1 2.2 + + 5 6 + 2.3 W arning! Watch Out! There are possible hazards as shown by the symbols. 1 Electric shock from welding electrode or wiring can kill.
OM-353 Page 10 2-2. Rating Label For CE Products S-178 813-A ISO/IEC 974-1 X 25% 60% 100% 7A/10.2V 310A/22.4V U 0 = 80V I 2 310A 200A 155A U 2 22.4V 18V 16.2V X 25% 60% 100% 5A/20.2V 310A/32.4V U 0 = 80V I 2 310A 200A 155A U 2 32.4V 28V 26.2V IP 21S U 1 = 220 I 1max = 1 17.
OM-353 Page 1 1 2-3. Symbols And Definitions Some symbols are found only on CE products. NOTE A Amperes Panel – Local Gas Tungsten Arc W elding (GT A W) Shielded Metal Arc W elding (SMA W) V V olts .
OM-353 Page 12 SECTION 3 – INST ALLA TION 3-1. Specifications Amperes Input at AC Balanced Rated Load Output, 50/60 Hz, Single-Phase Rated W elding Output PFC** 200 V 230 V 460 V 575 V KV A KW Amp Range Max OCV IP Rating NEMA Class II (40) – 250 No PFC 106 (4.
OM-353 Page 13 3-3. Duty Cycle And Overheating 4 Minutes W elding 6 Minutes Resting 6 Minutes W elding 4 Minutes Resting Duty Cycle is percentage of 10 mi n- utes that unit can weld at rated load without overheating. If unit overheats, thermostat opens, output stops, light goes on (CE models only), and cooling fan runs.
OM-353 Page 14 3-4. Selecting A Location 1 Lifting Eye 2 Lifting Forks Use lifting eye or lifting forks to move unit. If using lifting forks, extend forks beyond opposite side of unit. 3 Rating Label (Non CE Models Only) 4 Rating Label (CE Models Only , See Section 2-2) Use rating label to determine input power needs.
OM-353 Page 15 3-6. Tipping Y Be careful when placing or moving unit over uneven surfaces. 3-7. W eld Output T erminals And Selecting Cable Sizes Y ARC WELDING can cause Electromagnetic Interference. T o reduce possible interference, keep weld cables as short as possible, close together , and down low , such as on the floor .
OM-353 Page 16 3-8. Remote 14 Receptacle Socket* Socket Information A 24 volts ac. B Contact closure to A completes 24 volts ac contactor control circuit. C Command reference; 0 to +10 volts dc output to remote control. AJ B K I D Remote control circuit common.
OM-353 Page 17 3-10. Electrical Service Guide All values calculated at 60% duty cycle. NOTE 60 Hertz Models Without Power Factor Correction With Power Factor Correction Input V oltage 200 230 460 575 .
OM-353 Page 18 1 3-1 1. Placing Jumper Links And Connecting Input Power ST-1 17 263-K Check input voltage available at site. 1 Jumper Link Label Check label inside your unit – only one label is on unit. Y Only make connections for th e voltages shown on the la - bel inside your unit.
OM-353 Page 19 SECTION 4 – OPERA TION 4-1. Controls Ref. ST-1 17 264-F / Ref. ST-154 795-C 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 1 Ammeter See Section 4-3. 2 V oltmeter See Section 4-3. 3 High Frequency Switch See Section 4-1 1. 4 Output (Contactor) Switch See Section 4-8.
OM-353 Page 20 4-2. Output Selector Switch Ref. ST-181 675-A 1 Output Selector Switch Y Do not use AC output in damp areas, if movement is confined, or if there is dan- ger of falling. Use AC output ONL Y if required for the welding process, and then use a remote control.
OM-353 Page 21 4-4. Crater Time Controls 1 Crater T ime Control Us e control to reduce current over a set period of time (0 – 15 seconds) at the end of the weld cycle when NOT using a remote current control. 2 Crater Time Switch ON – provides crater time.
OM-353 Page 22 4-6. AC Balance Control Ref. S-0795-A 1 AC Balance Control Balance Control (AC GT A W): Control changes the AC output square wave. Rotating the control towards 10 provides deeper pene- tration. Rotating the control towards 0 provides more cleaning action of the workpiece.
OM-353 Page 23 4-7. Amperage Adjustment Controls 1 Amperage Adjustment Control Use control to adjust amperage, and preset amperage on ammeter (see S e c t i o n 4 - 3 ) . T h i s c o n t r o l m a y be adjusted while welding. For remote amperage control , front panel control setting is the maximum amperage available.
OM-353 Page 24 4-9. Arc Controls 1 Arc Control (Dig) For AC And DC SMA W W elding When set at 0, short-circuit amper- age at low arc voltage is the same as normal welding amperage. When setting is increased, short- circuit amperage at low arc voltage increases.
OM-353 Page 25 4-1 1. High Frequency Controls Y Place High Frequency switch in Off position before using the shielded metal arc welding (SMA W) process. 1 High Frequency Switch ST ART – (Up position) provides H F for arc starting only . High frequency turns o n t o help start arc when out- put is enabled.
OM-353 Page 26 SECTION 5 – MAINTENANCE & TROUBLESHOOTING 5-1. Routine Maintenance Y Disconnect power before maintaining. 3 Months Replace Unreadable Labels Clean And T ighten W eld T erminals Re.
OM-353 Page 27 5-3. Adjusting Spark Gaps Ref. ST-154 795-C T ools Nee d e d : 1 4 3 4 3 2 Y T urn Off power before adjusting spark gaps. Open access door . 1 Tungsten End Of Point Replace point if tungsten end dis- appears; do not clean or dress tungsten.
OM-353 Page 28 T rouble Remedy Fan not operating. NOTE: fan only Check and remove anything blocking fan movement. runs when cooling is necessary . Have Factory Authorized Service Agent check fan motor . Unit provides only maximum or minimum weld output.
OM-353 Page 29 SC-188 161-A 5-5. Circuit Diagram.
OM-353 Page 30 SECTION 6 – HIGH FREQUENCY (HF) 6-1. W elding Processes Using HF high_freq1 7/95 – S-0693 1 HF V oltage GT A W – helps arc jump air gap between torch and workpiece and/ or stabilize the arc. SA W – helps arc reach workpiece through flux granules.
OM-353 Page 31 6-3. Correct Installation 1 HF Source (Welder With Built-In HF Or Separate HF Unit) Ground metal machine case, work output terminal, line disconnect device, input supply , and worktable. 2 Welding Zone And Centerpoint A circle 50 ft (15 m) from centerpoint between HF source and welding torch in all directions.
OM-353 Page 32 SECTION 7 – P ARTS LIST Figure 7-1. Main Assembly ST-120 135-R . Hardware is common and not available unless listed. 1 2 – Fig.7 – 3 3 4 5 6 7 – Fig.7 – 5 8 9 10 11 12 13 30 31 14 15 16 17 – Fig.7 – 4 18 19 20 21 22 23 24 25 26 27 28 29 – Fig.
OM-353 Page 33 Replace Coils at Factory or Authorized Factory Service Station Figure 7-1. Main Assembly Description Quantity Part No. Dia. Mkgs. Item No. 1 182 605 COVER, top 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OM-353 Page 34 1 2 ST-120 088-G 3 4 5 6 7 4 8 9 10 12 13 Includes Item 26 11 14 15 16 17 18 19 23 25 26 27 1 Fig 7-6 21 20 28 29 22 24 . Hardware is common and not available unless listed.
OM-353 Page 35 Figure 7-2. Panel, Front w/Components (Fig 7-1 Item 29) Description Quantity Part No. Dia. Mkgs. Item No. 1 097 922 KNOB, pointer 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OM-353 Page 36 Figure 7-3. Rectifier , Si Diode (Fig 7-1 Item 2) Description Quantity Part No. Dia. Mkgs. 181 106 Item No. 1 C7-10 031 689 CAP ACITOR, rectifier 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OM-353 Page 37 Figure 7-5. Panel, Mtg Components (Fig 7-1 Item 7) Description Quantity Part No. Dia. Mkgs. Item No. 1 R7 186 468 RESIST OR, WW fxd 100W50 ohm 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OM-353 Page 38 ST-120 003-Q . Hardware is common and not available unless listed. 1 2 3 4 5 6 7 8 9 10 11 13 14 15 16 17 18 19 20 21 22 23 Figure 7-6. Control Panel, Lower Front.
OM-353 Page 39 Figure 7-6. Control Panel, Lower Front (Fig 7-2 Item 18) Description Quantity Part No. Dia. Mkgs. Item No. 1 171 652 P ANEL, front lower 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OM-353 Page 40 Notes.
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Warranty Questions? Call 1-877-HOBART1 for your local Hobart distributor. hobart standard 7/00 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 2000 Hobart Welding Products. 1/00 Hoba rt We lding Produc ts An I l li noi s T ool Works Com pany 600 West Main St reet Troy , O H 45373 US A For Technical A ssistan ce: Call1-800-.
An important point after buying a device Hobart OM-353 (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 OM-353 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 OM-353 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Hobart OM-353 you will learn all the available features of the product, as well as information on its operation. The information that you get Hobart OM-353 will certainly help you make a decision on the purchase.
If you already are a holder of Hobart OM-353, 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 OM-353.
However, one of the most important roles played by the user manual is to help in solving problems with Hobart OM-353. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Hobart OM-353 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
