Chicago Electric 68888 Owner's Manual

Chicago Electric 68888 Owner's Manual

70 amp arc welder

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Owner's Manual & Safety Instructions
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inspection, maintenance and cleaning procedures. Write the product's serial number in the back of the manual
near the assembly diagram (or month and year of purchase if product has no number). Keep this manual and
the receipt in a safe and dry place for future reference.
70 AMP
ARC WELDER
When unpacking, make sure that the product is intact
and undamaged. If any parts are missing or broken,
please call 1-800-444-3353 as soon as possible.
©
Copyright
2011 by Harbor Freight Tools
this manual or any artwork contained herein may be reproduced in any shape
or form without the express written consent of Harbor Freight Tools. Diagrams
within this manual may not be drawn proportionally. Due to continuing
improvements, actual product may differ slightly from the product described
herein. Tools required for assembly and service may not be included.
Keep this manual for the safety warnings and precautions, assembly, operating,
Visit our website at: http://www.harborfreight.com
Email our technical support at: tech@harborfreight.com
®
. All rights reserved. No portion of
Includes:
6 ft. welding cable with multi-angle
Electrode Holder
6 ft. Ground Cable with clamp
Five 1/16" electrodes
Handheld face shield
Chipping hammer with wire brush
Shielded Metal Arc Welder
AC Outlet for a Smooth & Easy Welding Process
120 volt, 20 amp, single phase input
• Weldable materials: steel, stainless steel, cast iron
• Material thickness: Up to 1/8" thick
• Thermal overload protection with indicator light
• Welding current: 40-70 amp AC
• Duty cycle: 30% @ 55 amp (Rated), 20% @ 70 amp (Max.)
• Electrode diameter ranges: 1/16"-3/32"
Read this material before using this product.
Failure to do so can result in serious injury.
SaVE thiS manual.
ITEM 68888

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Summary of Contents for Chicago Electric 68888

  • Page 1 Failure to do so can result in serious injury. or form without the express written consent of Harbor Freight Tools. Diagrams within this manual may not be drawn proportionally. Due to continuing SaVE thiS manual.
  • Page 2: Important Safety Information

    Wash hands after handling. (California Health 6. avoid unintentional starting. Make sure you are & Safety Code § 25249.5, et seq.) prepared to begin work before turning on the Welder. Page 2 For technical questions, please call 1-800-444-3353. SKU 68888...
  • Page 3: Electrical Safety

    SKU 68888 For technical questions, please call 1-800-444-3353. Page 3...
  • Page 4: Fire Safety

    3. prevent unintentional starting. Ensure the switch is in the off-position before connecting to power source or moving the welder. Carrying or energizing welders that have the switch on invites accidents. Page 4 For technical questions, please call 1-800-444-3353. SKU 68888...
  • Page 5: Maintenance

    If unreadable or missing, contact welder’s operation. If damaged, have the Harbor Freight Tools for a replacement. welder repaired before use. Many accidents 4. unplug before maintenance. Unplug the Welder are caused by poorly maintained welders.
  • Page 6: Grounding

    Amperes Electrode Cable Open Circuit Voltage Kilovolt Amperes Overheat Shutdown Indicator (Volts / 1000 * Amperes) Cooling Fan Inches Per Minute Housing Ground Point American Wire Gauge Volts Alternating Current Page 6 For technical questions, please call 1-800-444-3353. SKU 68888...
  • Page 7: Components And Controls

    Switch off and unplug the welder before assembly. Components and Controls power Switch Current Output Switch Overload light Electrode holder Grounding Clamp SKU 68888 For technical questions, please call 1-800-444-3353. Page 7...
  • Page 8: Duty Cycle (Duration Of Use)

    The edges of thicker workpieces may need to be chamfered (or beveled) to allow proper weld penetration. clamps workpieces Clean surfaces to bare metal. Chamfer thick workpieces. Page 8 For technical questions, please call 1-800-444-3353. SKU 68888...
  • Page 9 Weld before cleaning. weld bead after practice welding for a few slag spatter seconds, StOp and examine your weld using the guidelines starting on the next page. base metal SKU 68888 For technical questions, please call 1-800-444-3353. Page 9...
  • Page 10: Strike Test

    CORRECt: tO CORRECt: tO CORRECt: tO CORRECt: Weld slower Weld faster Increase Decrease distance distance POWER CURRENT POWER CURRENT OVERLOAD OVERLOAD 70 AMP 70 AMP ARC WELDER ARC WELDER Page 10 For technical questions, please call 1-800-444-3353. SKU 68888...
  • Page 11 Profile Keep arc on leading edge of weld puddle. Hold gun at proper angles. View 2. insufficient weld heat: Increase current. 3. Dirty workpiece: Clean workpiece down to bare metal. SKU 68888 For technical questions, please call 1-800-444-3353. Page 11...
  • Page 12 1. Workpiece overheating: Reduce current. 2. Welding speed too slow: Increase welding speed and ensure that welding speed is kept steady. View 3. Excessive material at weld: Reduce amount of fill material. Page 12 For technical questions, please call 1-800-444-3353. SKU 68888...
  • Page 13: Troubleshooting

    2. Have a qualified technician inspect and Welding arc not Stable Handle or loose repair or replace, as necessary. connection within Electrode Handle. 3. Adjust current setting. 3. Make sure setting matches recommended setting. SKU 68888 For technical questions, please call 1-800-444-3353. Page 13...
  • Page 14 If product has no serial number, record month and year of purchase instead. note: Some parts are listed and shown for illustration purposes only, and are not available individually as replacement parts. Page 14 For technical questions, please call 1-800-444-3353. SKU 68888...
  • Page 15: Wiring Schematic

    LICENSED TECHNICIANS AND NOT BY THE BUYER. THE BUYER ASSUMES ALL RISK AND LIABILITY ARISING OUT OF HIS OR HER REPAIRS TO THE ORIGINAL PRODUCT OR REPLACEMENT PARTS THERETO, OR ARISING OUT OF HIS OR HER INSTALLATION OF REPLACEMENT PARTS THERETO. Wiring Schematic SKU 68888 For technical questions, please call 1-800-444-3353. Page 15...
  • Page 16 Limited 90 Day Warranty Harbor Freight Tools Co. makes every effort to assure that its products meet high quality and durability standards, and warrants to the original purchaser that this product is free from defects in materials and workmanship for the period of 90 days from the date of purchase.

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