Grizzly H8155 Welder User Manual
Contents
1. 4 Industrial Mic MODEL H8155 MIG WELDER OWNER S MANUAL i EAM e WIRE spee COPYRIGHT MAY 2007 BY GRIZZLY INDUSTRIAL INC WARNING NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL INC LO9344 PRINTED IN CHINA WARNING This manual provides critical safety instructions on the proper setup operation maintenance and service of this machine equipment Failure to read understand and follow the instructions given in this manual may result in serious personal injury including amputation electrocution or death The owner of this machine equipment is solely responsible for its safe use This responsibility includes but is not limited to proper installation in a safe environment personnel training and usage authorization proper inspection and maintenance manual availability and comprehension application of safety devices blade cutter integ rity and the usage of personal protective equipment The manufacturer will not be held liable for injury or property damage from negligence improper training machine modifications or misuse 4 WARNING Fumes created by welding cutting grinding drilling and other metal working activities may contain hazardous chemicals that can cause cancer birth defects or other reproductive harm Some examples of these chemicals are e Galvanized metal welding and cutting e Lead2. MIG welders use a high frequency cur rent that creates a high electro magnetic field EMF around the welder EMF disrupts electronic devices To avoid damage keep electronic devices at least 50 feet from the welder when it is powered on Workers who have pacemakers must consult with their physician before using this equipment or being within 50 feet of welding operations SECTION 3 INVENTORY The Model H8155 was carefully packed when it left our warehouse If you discover the machine is damaged or a part is missing after you have signed for delivery please immediately call Customer Service at 570 546 9663 for advice Save the containers and all packing materials for possible inspection by the carrier or its agent Otherwise filing a freight claim can be difficult When you are completely satisfied with the condition of your shipment inventory the contents Tey DUAL Mic Figure 3 Model H8155 inventory Contact Tip Welding Torch Assembly Utility Brush and Slag Hammer Work Clamp Assembly 2 Ib Spool of Flux Wire Welder s Mask Assembly Welder s Mask Handle Handle Assembly Tap Screw 8 X 4 Contact Tip Wrenchww moou gt c rgom 8 o H8155 MIG Welder SECTION 4 OPERATIONS Operation Safety AWARNING Damage to your eyes and lungs could result from using this machine without proper protective gear Always wear safet
3. duces no result H8155 MIG Welder Troubleshooting Plug receptacle is at fault or wired incor rectly Wiring is open has high resistance ON OFF switch is at fault Duty cycle exceeded Insufficient wire feed spring tension Wire guide sheath in the welding torch assembly is blocked Wire spool axle nut is too tight Wire reel has oxidized or poorly wound wire Ground cable is not connected or is poorly connected Internal connection loose on switches One or more rectifiers failed Little or no gas Clogged holes in welding torch Solenoid valve blocked Poor quality gas or wire Worn or dirty solenoid valve Faulty welding torch trigger disconnected or broken control cables Overload controller defective Test for good contacts correct the wiring Check for broken wires or disconnected corroded connections and repair replace as necessary Replace faulty ON OFF switch Allow several minutes to cool with the On Off switch in the Off position then attempt to power up the machine again Tighten the spring tension knob Clean wire sheath or replace welding torch assem bly Loosen nut so the reels moves freely Replace wire wheel Check the ground cable for proper connection A qualified welding technician should open the unit and check for loose connections A qualified welding technician should open the unit and check for
4. GAS CYLINDERS Regardless of content pressurized gas cylinders can explode Always secure a protector cap in place over the outlet valve assembly when moving the cylinder A broken off valve could release the pressurized contents and cause the cylinder to be hurled about at dangerously high speeds causing serious property damage personal injury or death Always use safe methods when moving gas cylinders Always secure a gas cylinder to a wall or approved cylinder cart with a chain before using or storing PROTECT GAS CYLINDERS FROM HEAT OR DAMAGE An excess of heat can cause the pressurized gas to expand and explode the cylinder Never weld on the gas cylinder Damaging the outside of the cylinder can cause the cylinder to crack and explode Exploding pressurized gas cylin ders can cause serious property damage personal injury or death ELECTRIC AND MAGNETIC FIELDS EMF Welding operations create EMF around the welding equipment and workpieces Workers who have pacemak ers must consult with their physician before using this equipment or being within 50 feet of welding operations EQUIPMENT MAINTENANCE Make sure equipment inspections and maintenance are performed by a qualified person as required Stop the welding operation and disconnect the welder from power if the equipment is damaged or malfunctions EXPERIENCING DIFFICULTIES If you are experiencing difficulties performing the intended operation stop
5. Grizzly Industrial Inc 1203 Lycoming Mall Circle Muncy PA 17756 Phone 570 546 9663 Fax 800 438 5901 E Mail techsupport grizzly com Web Site http www grizzly com Specifications Welding Current 25 75A D ty une 20 75A Duly Eye 45 50A Duty ice 9296 Q 35A Duty Cycle esn 100 25A Power Consumption 20 110VAC Wire Size 0 023 0 035 0 03 Flux Core SIZE cS 4 diameter Welding Capacity 22 GA 5 32 Net Weight ee coal 55 Ibs H8155 MIG Welder SECTION 1 SAFETY AWARNING For Your Own Safety Read Instruction Manual Before Operating this Machine The purpose of safety symbols is to attract your attention to possible hazardous conditions This manual uses a series of symbols and signal words intended to convey the level of importance of the safety messages The progression of symbols is described below Remember that safety messages by themselves do not eliminate danger and are not a substitute for proper accident prevention measures T Indicates an imminently hazardous situation which if not avoided DANG E R WILL result in death or serious injury AWAR N Indicates a potentially hazardous situation which if not avoided COULD result in death or serious injury A CAUTION Indicates a potentially hazardous situation which if not avoided MAY result in minor or moderate injury It may
6. aware of the work environment around you as you weld and ensure that flying sparks do not start a fire 9 Look slightly ahead of the arc Even with the protection of the welder s hood looking directly at the arc can damage your eyes 10 Listen to the sound of the weld Each type of weld has its own distinct sound when it is progressing correctly 310 SOUP Basic Operation 9 hd A OFF Mt 2 8 NA 0 WIRE speen Figure 4 Model H8155 controls On Off Switch Min Max Switch 1 2 power level switch Wire Feed Speed Control H8155 MIG Welder 9 Press and hold the torch trigger switch and N OTI CE stroke the area to be welded with the elec trode wire to ignite the arc Remember to switch to positive electrode polarity when using gas instead of flux core 10 Once the arc is ignited move the torch to wire Follow the instructions on the diagram complete the weld below the wire feed mechanism to preform this simple modification Failure to follow 11 When the weld is complete lift the welding this procedure can result in poor quality torch handle electrode wire clearly away welds from any grounded object remove your face shield and inspect the weld 1 Start with ON OFF switch in the OFF position and with the welder unplugged 12 When the welder has cooled set the ON OFF switch to the OFF position and Disconnect the welder from powe
7. e Use at least a 10 gauge cord that does not exceed 50 feet in length e The extension cord must also contain a ground wire and plug pin e qualified electrician MUST size cords over 50 feet long to prevent damage to the weld er H8155 MIG Welder Grounding for Welding Safety There are two or more electrical circuits involved in any welding operation The practice of safely grounding these circuits is documented in vari ous codes and standards refer to Additional Sources for Welding Codes and Standards on Page 5 Welding Machine Ground When properly connected to a power source the Model H8155 welder is grounded through the power cord and power grid The internal welding circuit of the welder is insulated from the external enclosure However to avoid shocking hazards if this internal insulation fails you must establish a separate earth ground for the welder s external enclosure This ground will ensure that if a short does occur and the metal enclosure becomes integrated with the welding current the current will safely dissipate directly through the ground instead of through you Note Refer to the publication NFPA 70 National Electric Code Article 250 Grounding and your local electrical codes for the correct method of establishing this ground The grounding terminal for the H8155 external enclosure is located on the right rear ofthe welder see Figure 2 Figure 2 Location of external enclosure grou
8. from lead based paints Your risk from these exposures varies depending on how often you do this type of work To reduce your exposure to these chemicals Work in a well ventilated area and work with approved safety equip ment such as those respirators that are specially designed to filter out microscopic particles and gases Table of Contents INTRODUCTION 2 eg ana 2 OOMEN MN teen 2 SPECIA ee ete 2 SECTION 1 SAFETY ae 3 MIG Welders een ae ee 3 Welding Codes and Standards 5 SECTION 2 CIRCUIT REQUIREMENTS ee 6 Ee m er 6 Grounding tor Welding Safety 7 SECTION 3 INVENTORY aszanrsneessessnsenserserenizensaarsensevonine ann ann adadi cR ARMES inanan ipes iads 8 SECTION 4 OPERATIONS manke 9 ursi ee 9 Welder Duty Cycle een een 9 Operation SUE MMES ans ea einen 10 ASC SOI tt ee 10 a ea eee 12 SECTION 5 ACCESSORIES ae 14 SECTION 6 SERVICE 2 15 Troubleshooting aneinander rei 15 Replacement Parts And Labels rasen a a ntt dus
9. using the equip ment Contact our Technical Support Department at 570 546 9663 H8155 MIG Welder Additional Sources for Welding Codes and Standards American Welding Society 550 N W LeJeune Road Miami FL 33126 305 443 9353 Website www aws org Safety in welding Cutting and Allied Processes ANSI Standard Z49 1 Recommended Safe Practices for the Preparation for Welding and Cutting of Containers and Piping AWS 4 1 National Fire Protection Association P O Box 9101 1 Battery March Park Quincy MA 02269 9101 617 770 3000 Website www nfpa org and www sparky org National Electrical Code NFPA Standard 70 Standard for Fire Prevention During Welding Cutting and Other Hot Work NFPA Standard 51B Compressed Gas Association 1735 Jefferson Davis Highway Suite 1004 Arlington VA 22202 4102 703 412 0900 Website www cganet com Safe Handling of Compressed Gases in Cylinders CGA Pamphlet P 1 Canadian Standards Association Standards Sales 178 Rexdale Boulevard Rexdale Ontario Canada M9W 1R3 800 463 6727 Website www csa international org Code for Safety in Welding and Cutting CSA Standard W117 2 American National Standards Institute ANSI 11 West 42nd Street New York NY 10036 8002 212 642 4900 Website www ansi org Practice for Occupational and Educational Eye and Face Protection ANSI Standard Z87 1 U S Government Printing Office Superintendent of Documents P
10. H8155 welder draws the following amps under maximum load Draw at 110V Single Phase 20 Amps Circuit Requirements Connect your welder to a dedicated and grounded circuit that is rated for the amperage given below Never replace a circuit breaker on an existing cir cuit with one of higher amperage without consult ing a qualified electrician to ensure compliance with wiring codes If you are unsure about the wiring codes in your area or you plan to con nect your machine to a shared circuit consult a qualified electrician Minimum 110V Circuit Requirement 30 Amps Grounding In the event of an electrical short grounding reduces the risk of electric shock The grounding wire in the power cord must be properly connected to the grounding prong on the plug likewise the outlet must be properly installed and grounded All electrical connections must be made in accor dance with local codes and ordinances AWARNING Electrocution or fire could result if this machine is not grounded correctly or if your electrical con figuration does not com ply with local and state codes Ensure compliance by checking with a quali fied electrician Extension Cords We do not recommend the use of extension cords Instead arrange the placement of your equipment and the installed wiring to eliminate the need for extension cords If you find it absolutely necessary to use an exten sion cord with your machine
11. O Box 371954 Pittsburgh PA 15250 312 353 2220 Website www osha gov OSHA Occupational Safety and Health Standards for General Industry Title 29 Code of Federal Regulations CFR Part 1910 Subpart Q and Part 1929 Subpart J American Conference of Government Industrial Hygienists ACGIH 1330 Kemper Meadow Drive Suite 600 Cincinnati OH 45240 1634 513 742 2020 Website www acgih org Threshold Limit Values Booklet AWARNING CAUTION No list of safety guidelines can be complete Like all equipment there is potential danger when operating this welder Accidents are frequently caused by lack of familiarity or failure to pay attention Use this welder with respect and caution to reduce the possibil ity of operator injury If normal safety pre cautions are overlooked or ignored serious personal injury may occur Every shop environment is different Always consider safety first as it applies to your individual working conditions Use this and other equipment with caution and respect Failure to do so could result in serious per sonal injury damage to equipment or poor work results H8155 MIG Welder SECTION 2 CIRCUIT REQUIREMENTS 110V Operation AWARNING Serious personal injury could occur if you connect the machine to the power source before you have completed the set up pro cess DO NOT connect the machine to the power source until instructed to do so Amperage Draw The Model
12. also be used to alert against unsafe practices NOTICE This symbol is used to alert the user to useful information about proper operation of the machine AWARNING Safety Instructions for MIG Welders READ THIS MANUAL This manual con 3 tains proper operating and safety proce WELDING IN A CONFINED SPACE CAN BE HAZARDOUS Always open all covers dures for this equipment WELDING FUMES Breathing welding fumes can cause suffocation or poisoning without warning Keep your head out of welding fumes Use adequate ventilation at the arc to safely remove the fumes from your breathing zone and the general area Use ANSI approved respirators for the type of welding operation Protect others from these fumes H8155 MIG Welder sustain forced ventilation remove toxic and hazardous materials and provide a power disconnect to the welder inside the work space Always work with someone who can give you help from outside the space Welding can displace oxygen Always check for safe breathing atmosphere and provide air supplied respirators if necessary Keep in mind that all normal welding hazards are intensified in a confined space AWARNING ELECTRIC SHOCK DO NOT touch live electrical parts Connect welder to power source with approved earth ground Make sure all electrical connections are tight clean and dry Connect workpiece to approved earth ground The work lead is NOT a ground connection and is to be used only to
13. burnt rectifiers Check presence of gas condition of supply line and gas pressure Clear clogged holes using compressed air A qualified welding technician should open the unit and check solenoid operation and electrical connec tion Gas must be very dry Use a moisture filter Use a different type of wire A qualified technician should open the unit and dismantle the valve to clean the orifice and seating element A qualified welding technician should open the unit and remove the torch connection plug and short circuit poles Check and repair control cables A qualified welding technician should open the unit and replace the overload controller 15 Replacement Parts And Labels REF PART DESCRIPTION REF PART DESCRIPTION PH8155001 WELDERS MASK 12 PH8155012 HANDLE 2 3 4 5 6 7 8 PLABEL 14 ELECTRICITY LABEL 1 1 AWARNING Safety labels warn about machine hazards and ways to prevent injury The owner of this machine MUST maintain the original location and readability of the labels on the machine If any label is removed or becomes unreadable REPLACE that label before using the machine again Contact Grizzly at 800 523 4777 or www grizzly com to order new labels 16 o H8155 MIG Welder H8155 MIG Welder NOTES NOTES H8155 MIG Wel
14. complete the working welding cir cuit PREVENT FIRES Welding work zones must be kept clear of flammable liquids such as gasoline and solvents combus tible solids such as paper and wood and flammable gases such as acetylene and hydrogen Provide approved fire barriers and fire extinguishing equipment for the welding zone Stay alert for sparks and spatter thrown into cracks and crevices that can start a smoldering fire Inspect the work area again one hour after welding for any potential fire hazards PROTECT BODY FROM ARC BURNS SPARKS AND SPATTER Wear correct and approved eye ear and body protec tion Wear complete body protection such as clean and oil free protective clothing leather gloves protective cap heavy long sleeve shirt cuffless pants and high leather boots DO NOT wear jewelry or frayed clothing Use a welding helmet with the cor rect shade of filter for the operation Protect other people and property in your work ing zone from exposure to arc radiation sparks and spatter WORKING AREA Keep working area clear of any material not involved in the welding operation Keep all equipment workpieces and work surfaces clean dry and free of entanglements Keep lead cables orga nized and away from your body AVOID EXPLOSION HAZARD Never weld on closed containers or containers with fumes inside Containers should be prepared per American Welding Society Publication F4 1 Section 7 9 HANDLING
15. der CUT ALONG DOTTED LINE Grizzly WARRANTY CARD Industrial Inc Name Street 2 City State Zip Phone Email _____ Invoice Model Order Serial The following information is given on a voluntary basis It will be used for marketing purposes to help us develop better products and services Of course all information is strictly confidential 1 How did you learn about us Advertisement Friend Catalog Card Deck Website Other 2 Which of the following magazines do you subscribe to Cabinet Maker _ Popular Mechanics ____ Today s Homeowner Family Handyman Popular Science Wood Hand Loader Popular Woodworking Wooden Boat ____ Handy Practical Homeowner ____ Woodshop News Home Shop Machinist Precision Shooter ____ Woodsmith Journal of Light Cont Projects in Metal Woodwork Live Steam ____ RC Modeler ____ Woodworker West Model Airplane News Rifle ____ Woodworkers Journal Modeltec Shop Notes Other Old House Journal Shotgun News 3 What is your annual household income 20 000 29 000 30 000 39 000 40 000 49 000 50 000 59 000 60 000 69 000 70 000 4 What is your age group ____ 20 29 ____30 39 40 49 50 59 ____60 69 70 5 How long have you been a woodworker metalworker 0 2 Years 2 8 Years 8 20 Years 20 Years 6 How many of your machines or tools are Grizzly 0 2 3 5 6 9 10 7 Do you think your machine represents a good value Yes No 8 Would you recommend Grizzly Industrial to a fri
16. der s mask up to your face H8155 MIG Welder o 3 4 Maintenance DISCONNECT THE WELDER FROM POWER Periodically open the top and side panels Using compressed air blow out all dust from the interior Store the unit in a clean and dry location Periodically clean out the torch head Installing the wire spool 1 DISCONNECT THE WELDER FROM POWER Lift the side panel to expose the wire spool axle and the wire feed mechanism Remove the wing nut and spool nut from the wire spool axle and remove the wire spool Place the new wire spool over the axle with the wire exiting the spool over the top Replace the retaining nut and wing nut and adjust until snug Figure 6 5 12 Figure 6 Replacing the wire spool Open the wire feed mechanism as shown in Figure 7 Figure 7 The open wire feed mechanism Feed and guide the spool wire into the wire feed mechanism and into the small tube just past the feed wheels Figure 8 Continue to guide the wire until comes out of the control tip on the torch assembly Note It will help if the welding torch cable is straightened out as much as possible Push in until the wire comes out the welding torch head If it cannot be fed manually all the way out it can be fed automatically when the welding unit is powered up H8155 MIG Welder 7 Close the feed mechanism over the wire and adjust the feed tension if necessary Figure 9 8 Close the s
17. e ndash 16 WARRANTY AND RETURNS axxcsiexskxsakks 42a CI3UK E ey LxE PERI OK EUN SEIN SENI UE LR E IAEA 21 INTRODUCTION Foreword We are proud to offer the Model H8155 MIG Welder This machine is part of a growing Grizzly family of fine metalworking equipment When used according to the guidelines set forth in this manual you can expect years of trouble free enjoyable operation and proof of Grizzly s com mitment to customer satisfaction The specifications drawings and photographs illustrated in this manual represent the Model H8155 when the manual was prepared However owing to Grizzly s policy of continuous improve ment changes may be made at any time with no obligation on the part of Grizzly For your convenience we always keep current Grizzly manuals available on our website at www grizzly com Any updates to your machine will be reflected in these manuals as soon as they are complete Visit our site often to check for the lat est updates to this manual Contact Info If you have any comments regarding this manual please write to us at the address below Grizzly Industrial Inc Technical Documentation Manager P O Box 2069 Bellingham WA 98227 2069 Email manuals grizzly com We stand behind our machines If you have any service questions or parts requests please call or write us at the location listed below
18. end Yes No 9 Would you allow us to use your name as a reference for Grizzly customers in your area Note We never use names more than 3 times Yes No 10 Comments FOLD ALONG DOTTED LINE Arizziy Industrial Inc GRIZZLY INDUSTRIAL INC P O BOX 2069 BELLINGHAM WA 98227 2069 FOLD ALONG DOTTED LINE Send a Grizzly Catalog to a friend Name Street TAPE ALONG EDGES PLEASE DO NOT STAPLE WARRANTY AND RETURNS Grizzly Industrial Inc warrants every product it sells for a period of 1 year to the original purchaser from the date of purchase This warranty does not apply to defects due directly or indirectly to misuse abuse negligence accidents repairs or alterations or lack of maintenance This is Grizzly s sole written warranty and any and all warranties that may be implied by law including any merchantability or fitness for any par ticular purpose are hereby limited to the duration of this written warranty We do not warrant or represent that the merchandise complies with the provisions of any law or acts unless the manufacturer so warrants In no event shall Grizzly s liability under this warranty exceed the purchase price paid for the product and any legal actions brought against Grizzly shall be tried in the State of Washington County of Whatcom We shall in no event be liable for death injuries to persons or property or for incidental contingent special or consequential dama
19. ges arising from the use of our products To take advantage of this warranty contact us by mail or phone and give us all the details We will then issue you a Return Number which must be clearly posted on the outside as well as the inside of the carton We will not accept any item back without this number Proof of purchase must accompany the merchandise The manufacturers reserve the right to change specifications at any time because they constantly strive to achieve better quality equipment We make every effort to ensure that our products meet high quality and durability standards and we hope you never need to use this warranty Please feel free to write or call us if you have any questions about the machine or the manual Thank you again for your business and continued support We hope to serve you again soon Or ZZ Com TOOL WEBSITE Buy Direct and Save with Grizzly Trusted Proven and a Great Value Visit Our Website Today And Discover Why Grizzly Is The Industry Leader e SECURE ORDERING ORDERS SHIPPED WITHIN 24 HOURS E MAIL RESPONSE WITHIN ONE HOUR Call Today ForA FREE Full Color Catalog BE er
20. ide panel Figure 9 Adjusting the feed tension Installing the contact tip AWARNING Allow the welding torch nozzle and tip to cool before touching either of these components Welding generates a significant amount of heat Failure to allow welding components to adequately cool can result in severe injury 1 DISCONNECT THE WELDER FROM POWER 2 To remove the contact tip first disconnect the welder from power and verify that the ON OFF switch is in the OFF position 3 Remove the welding torch nozzle by twisting as you pull the nozzle off Figure 10 H8155 MIG Welder Figure 10 Removing the welding torch nozzle 4 Remove the contact tip with the contact tip wrench provided and install a new tip as shown in by threading it into the welding torch and tightening until snug Figure 11 Figure 11 Attaching a new contact tip 13 SECTION 5 ACCESSORIES H7786 Auto Darkening Welding Helmet Automatic UV and IR filters protect eyes from harmful visible and invisible light during welding Switching time is less than or equal to 2 millisec onds so there s no need to flip the helmet up to see your work under normal light conditions Full face protection features adjustable head suspen sion and adjustable delay time sensitivity and dark shade protection Viewing area is 3 2 x 12 Includes 2 AAA batteries Figure 12 Model H7786 welding helmet G7868 Welding Respirators Flame retardan
21. nding terminal on the rear of the Model H8155 H8155 MIG Welder Workpiece Ground The incoming power circuit to the welder and the working welding circuit are two separate circuits that must have separate grounds The weld ing circuit consists of the internal components of the welder the welding cables the electrode holder torch assembly the work clamp and the workpiece ANSI Welding Standards Z49 1 11 3 2 1 specify that Grounding of the workpiece shall be done by locating the work on a grounded metal floor or platen or by connection to a grounded building frame or other satisfactory ground AWARNING Always ensure that the ground for the incom ing power circuit to the welder and the ground for the working welding circuit are never connected Failure to comply with this warning could result in death serious per sonal injury or property damage However you must also avoid double ground ing the workpiece ANSI 249 1 states that Care shall be taken to avoid the flow of welding current through a connection intended only for safety grounding since the welding current may be of a higher magnitude than the grounding conductor can safely carry Note The work lead from the welder is some times incorrectly referred to as the ground lead The work lead from the welder is NOT a ground The work lead and the ground connection to the workpiece are separate and must NOT be con nected in any way AWARNING
22. ostat will re establish the welding circuit and the orange warning light will go out AWARNING Always treat the welding components as if they carry live welding current even when the welder reaches the duty cycle limit and shuts down When the welder re establishes the welding current the electrode and work lead will immediately carry live welding cur rent Ignoring this warning could result in serious personal injury or death Operation Guidelines NOTICE The following instructions are not intended to be a complete list of welding steps To become a good welder read books on weld ing get help from experienced welders and practice Although it is beyond the scope of this manual to instruct how to weld here are some general steps for successful welding 1 Read and understand this manual and ensure that all safety instructions are followed 2 Establish a safe and efficient welding envi ronment and ensure that you are properly protected for the welding operation Ensure that there is a working fire extinguisher read ily available 3 Have an experienced welder stand by to assist if needed 4 Decide which type of weld is correct for your project and properly prepare the metal 5 Choose the correct amperage output and be aware of the duty cycle for this amperage 6 Select the correct electrode type and size for your welding project 7 Make sure the welding cables and grounds are secure 8 Stay
23. r 2 f using non flux core wire connect and secure the Argon CO gas hose to the rear of the welder If using flux core wire protective gas is not required NO TICE Always keep the power ON to the welder 3 Attach the work clamp as close as possible after completing the welding operation to to the workpeice or to the metal work bench let the welder fan cool the welder down To where the workpiece is mounted and electri avoid damage to your welder never shut cally connected the power OFF before the welder enclosure is completely cool to the touch 4 Set the desired welding current for the type of metal being welded using the Min Max switch and the 1 2 power level switch Figure 5 shows the resulting current for each combi nation of Min Max and 1 2 switch positions Output Current Duty Cycle Voltage Max Output Voltage Min 100 15 2 28VDC 92 15 7V 28VDC Max 1 45 16 5V 28VDC 2 20 17 7V 28VDC Figure 5 Operation power chart 5 Verify that the ON OFF switch is in the Off position then plug the welder into a dedi cated 110VAC grounded circuit 6 While holding the torch with the electrode clearly out of the way of any grounded objects set the ON OFF switch to the ON position 7 Momentarily press the welding torch trigger switch to test the wire output speed Adjust the speed with the wire speed control 8 Orient yourself with the area to be welded then hold the wel
24. t outer shell is recommended for welding applications Special depth filter pro vides high loading capacity for metal fumes with out increasing breathing resistance Heavy duty adjustable headstrap and soft closed cell foam face seal offers maximum comfort protection and fit 5 pack Figure 13 Model G7868 welding respirators Call 1 800 523 47777 TO 14 H9748 Leather Jacket Medium 40 42 H9887 Leather Jacket Large 44 46 H9888 Leather Jacket X Large 48 52 H9746 Leather Knee Pads H9745 Leather Shoe Covers These leather jackets knee pads and shoe cov ers provide full protection from welding sparks and spatter Gloves not included Figure 14 Models H9748 H9746 H9745 leather welding protection H3157 Deluxe Welding Gloves Top grain leather gloves protect against welding hazards Extra long to protect wrists and fore arms One size fits all Figure 15 Model H3157 deluxe welding gloves H8155 MIG Welder SECTION 6 SERVICE Review the troubleshooting and procedures in this section to fix or adjust your machine if a problem devel ops If you need replacement parts or you are unsure of your repair skills then feel free to call our Technical Support at 570 546 9663 Welder does not power up or the breaker trips Wire does not feed properly Reduced welding power Porous or spongy welds Gas supply does not switch off Pressing welding torch trigger pro
25. y glasses welder s helmet and a respirator when oper ating this welder NOTICE If you have never used this type of machine or equipment before WE STRONGLY REC OMMEND that you read books trade maga zines or get formal training before begin ning any projects Regardless of the con tent in this section Grizzly Industrial will not be held liable for accidents caused by lack of training H8155 MIG Welder Welder Duty Cycle As the welder produces the desired power output for the welding operation power is converted to heat In order to protect the welder components from over heating each welder has an estab lished duty cycle which varies depending on the amperage output being used A duty cycle is the number of minutes out of 10 minutes that the welder can safely operate at the current amperage output without over heating For instance the Model H8155 has a duty cycle of 45 at 50A output This means that the welder can operate continuously for 4 5 minutes at 50A output then the arc must be stopped to allow the welder using the cooling fan to cool off for at least 5 5 minutes before starting the arc again The Model H8155 has a cooling fan and an inter nal thermostat that will shut the welder down if the duty cycle is exceeded This will be evident by the loss of welding circuit and the orange warn ing light on the face of the welder will illuminate When the welder has cooled sufficiently the inter nal therm
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