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MODEL H8155

MIG WELDER

OWNER'S MANUAL

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

Summary of Contents for H8155

Page 1: ...WELDER OWNER S MANUAL 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 ...

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Page 3: ...ECTION 2 CIRCUIT REQUIREMENTS 6 110V Operation 6 Grounding for Welding Safety 7 SECTION 3 INVENTORY 8 SECTION 4 OPERATIONS 9 Operation Safety 9 Welder Duty Cycle 9 Operation Guidelines 10 Basic Operation 10 Maintenance 12 SECTION 5 ACCESSORIES 14 SECTION 6 SERVICE 15 Troubleshooting 15 Replacement Parts And Labels 16 WARRANTY AND RETURNS 21 ...

Page 4: ... 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 C O Technical Documentation Manager P O Box 2069 Bellingham WA 98227 2069 Email manuals grizzly com We stand behind our...

Page 5: ...eneral area Use ANSI approved respirators for the type of welding operation Protect others from these fumes 3 WELDING IN A CONFINED SPACE CAN BE HAZARDOUS Always open all covers 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 ...

Page 6: ...away from your body 8 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 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 ...

Page 7: ... 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 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 ...

Page 8: ...et must be properly installed and grounded All electrical connections must be made in accor dance with local codes and ordinances 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 110V Operation Electrocution or fire could result if this machine is...

Page 9: ...ve 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 groun...

Page 10: ...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 Figure 3 Model H8155 inventory A Welder s Mask Assembly B Welder s Mask Handle C Handle Assembly D Tap Screw 8 X 4 E Contact Tip Wrenchww F Contact Tip G Welding Torch Assembly H Util...

Page 11: ...t 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 ...

Page 12: ...or 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...

Page 13: ...possible to the workpeice or to the metal work bench where the workpiece is mounted and electri cally connected 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 Figure 5 Operation power chart Output Current Duty Cycle Voltage Max...

Page 14: ...t cannot be fed manually all the way out it can be fed automatically when the welding unit is powered up 1 DISCONNECT THE WELDER FROM POWER 2 Periodically open the top and side panels Using compressed air blow out all dust from the interior 3 Store the unit in a clean and dry location 4 Periodically clean out the torch head Installing the wire spool 1 DISCONNECT THE WELDER FROM POWER 2 Lift the si...

Page 15: ...ghtening until snug Figure 11 Figure 11 Attaching a new contact tip Installing the contact tip 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 w...

Page 16: ...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 Figure 14 Models H9748 H9746 H9745 leather welding protection H9748 Leather Jacket Medium 40 42 H9887 Leather ...

Page 17: ...el Reduced welding power 1 Ground cable is not connected or is poorly connected 2 Internal connection loose on switches 3 One or more rectifiers failed 1 Check the ground cable for proper connection 2 A qualified welding technician should open the unit and check for loose connections 3 A qualified welding technician should open the unit and check for burnt rectifiers Porous or spongy welds 1 Littl...

Page 18: ...12 PH8155012 HANDLE 2 PH8155002 MASK HANDLE 13 PH8155013 WIRE FEED ASSEMBLY 3 PH8155003 LENSE RETAINING CLIP 14 PH8155014 WIRE SPOOL RETAINING NUT 4 PH8155004 MASK LENSE 15 PWN02 WING NUT 1 4 20 5 PH8155005 UTILITY BRUSH AND SLAG HAMMER 16 PH8155016 WELDING TORCH ASSEMBLY 6 PH8155006 CONTROL TIP WRENCH 17 PH8155017 WORK CLAMP ASSEMBLY 7 PH8155007 CONTROL TIP 18 PH8155018 MACHINE ID LABEL 8 PH81550...

Page 19: ...H8155 MIG Welder 17 NOTES ...

Page 20: ... 18 H8155 MIG Welder NOTES ...

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Page 23: ...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 damages 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 t...

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