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1” TWIN HAMMER 

AIR IMPACT WRENCH

Model

94109

ASSEMBLY 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

©

 2006 by Harbor Freight Tools

®

.  All rights reserved.  No portion of this manual or any artwork con-

tained 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

Summary of Contents for 94109

Page 1: ...ghts reserved No portion of this manual or any artwork con tained 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 tech...

Page 2: ...ons Do not use machines or power tools in damp or wet locations Don t expose to rain Keep work area well lighted Do not use electrically powered tools in the presence of flammable gases or liquids 3 Keep children away Children must never be allowed in the work area Do not let them handle machines tools or extension cords 4 Store idle equipment When not in use tools must be stored in a dry location...

Page 3: ...ol any part that appears damaged should be carefully checked to determine that it will operate properly and perform its intended function Check for alignment and binding of moving parts any broken parts or mounting fixtures and any other condition that may affect proper operation Any part that is damaged should be properly repaired or replaced by a qualified technician Do not use the tool if any s...

Page 4: ... applications must follow OSHA guidelines 23 Air Compressor Read and adhere to all warnings and instructions in the Air Compressor Instruction Manual Warning The warnings cautions and instructions discussed in this instruction manual cannot cover all possible conditions and situations that may occur It must be under stood by the operator that common sense and caution are factors which cannot be bu...

Page 5: ...ir hoses filter and oiler to the Compressor Air Outlet as illustrated below The filter and oiler not supplied are recommended but not mandatory for opera tion A few drops of pneumatic tool oil must be added through the air inlet before each use if an oiler is not used OPERATION 1 Install a standard 1 2 Air Connector not included to the Air Inlet 51 First wrap the threaded portion of the 1 2 air co...

Page 6: ...fasteners install with clockwise rotation some threads are intentionally the reverse 2 Set the directions of the Air Impact Wrench to Forward R right or clockwise or Reverse L left or counterclockwise by adjusting the Rotation Torque Knob 38 You may control the amount of torque to be applied by selecting any of the 3 torque settings 1 low 2 medium 3 high NOTE The actual torque delivered at each of...

Page 7: ...nch air chamber Maintenance 1 After each use wipe the Impact Wrench with a clean cloth to remove any dirt and grease buildup 2 To maintain tool life always lubricate the air line by adding a few drops of pneumatic tool oil to the air line or Air Inlet before each use Or install the automatic oiler filter system as illustrated on page 5 3 Before each use drain water out of the air compressor tank a...

Page 8: ...Page 8 SKU 94109 For technical questions please call 1 800 444 3353 Parts List ...

Page 9: ...e 9 SKU 94109 For technical questions please call 1 800 444 3353 Assembly Drawing NOTE Some parts are listed and shown for illustration purposes only and are not available individually as replacement parts ...

Page 10: ... or for incidental contingent special or consequential damages arising from the use of our product Some states do not allow the exclusion or limitation of incidental or consequential damages so the above limitation of exclusion may not apply to you THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS To take advantage...

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