Central Pneumatic Earthquake 92421 Set Up And Operating Instructions Manual
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Central Pneumatic Earthquake 92421 Set Up And Operating Instructions Manual

1” air impact wrench
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1" AIR IMPACT WRENCH
SET UP AND OPERATING INSTRUCTIONS
Visit our website at: http://www.harborfreight.com
Read this material before using this product.
Failure to do so can result in serious injury.
SAVE THIS MANUAL.
©
Copyright
2009 by Harbor Freight Tools
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.
For technical questions or replacement parts, please call 1-800-444-3353.
Revised Manual 11h
92421
®
. All rights reserved. No portion of this manual or any artwork

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  • Page 1 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.

  • Page 2: Important Safety Instructions

    The tool is able to create sparks resulting in the ignition of the dust or fumes. Keep bystanders, children, and visitors away while operating the SKU 92421...

  • Page 3: Personal Safety

    Use safety equipment. A dust mask, non-skid safety shoes and a hard hat must be used for the applicable SKU 92421 For technical questions, please call 1-800-444-3353. conditions. Wear heavy-duty work gloves during use. Always wear eye protection. Wear ANSI- approved safety goggles.

  • Page 4: Air Source

    Pounds per square inch of pressure ft-lb Foot-pounds of torque Blows per minute Cubic Feet per Minute flow Cubic Feet per Minute flow at SCFM standard conditions National pipe thread, tapered National pipe thread, straight Chart continued in next column. SKU 92421...

  • Page 5: Specific Safety Instructions

    Only use with accessories rated to handle the forces exerted by this tool during operation. Other accessories not designed for the forces generated SKU 92421 For technical questions, please call 1-800-444-3353. may break and forcefully launch pieces. Attach all accessories properly to the tool before connecting the air supply.

  • Page 6: Functional Description

    If any parts are missing or broken, please call Harbor Freight Tools at 1-800-444-3353 as soon as possible. • This air tool may be shipped with a protective plug covering the air inlet. Remove this plug before set up. SKU 92421...

  • Page 7: Air Supply

    Note: If an automatic oiler system is not used, add a few drops of Pneumatic Tool Oil to the airline connection before operation. Add a few more SKU 92421 For technical questions, please call 1-800-444-3353. drops after each hour of continual use.

  • Page 8: Operating Instructions

    The air hose must be long enough to reach the work area with enough extra length to allow free movement while working. There must not be hazardous objects (such as utility lines or foreign SKU 92421...

  • Page 9: General Operating Instructions

    Settings above Direction Valve without protective black coating. Place the socket over the nut you wish to tighten. SKU 92421 For technical questions, please call 1-800-444-3353. Grip tool firmly with BOTH hands and gently squeeze Trigger (13). Adjust air flow by turning Air Regulator Knob from positions 1 through 3.

  • Page 10: User Maintenance Instructions

    Clean inlet bushing and air strainer screen regularly. Check if housing cap screws are tight. If not, tighten them. When storing, always store Impact Wrench in clean, dry and safe location out of reach of children). SKU 92421...

  • Page 11: Troubleshooting

    3. Damaged valve or housing. 4. Dirty, worn or damaged valve. Follow all safety precautions whenever diagnosing or servicing the tool. Disconnect air supply before service. SKU 92421 For technical questions, please call 1-800-444-3353. Troubleshooting Likely Solutions 1. Check for loose connections and make sure...

  • Page 12: Parts List

    Motor Housing Bearing Hammer Pin Hammer Frame Hammer Anvil Thrust Washer Hammer Case Bushing Hammer Case Gasket Hammer Case Hammer Case Cap Screw Washer Side Handle Screw Washer Hammer Case Seal Socket Retaining O-Ring Socket Retainer Hex Wrench Q’ty SKU 92421...

  • Page 13: Assembly Diagram

    Note: 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. SKU 92421 For technical questions, please call 1-800-444-3353. ASSEMBLY DIAGRAM Please Note: Hex Wrench (50) not shown.
  • Page 14 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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