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®
1” AIR IMPACT WRENCH
Model 92427
ASSEMBLY and OPERATING
INSTRUCTIONS
®
3491 Mission Oaks Blvd., Camarillo, CA 93011
Visit our Web site at http://www.harborfreight.com
TO PREVENT SERIOUS INJURY,
READ AND UNDERSTAND ALL WARNINGS
AND INSTRUCTIONS BEFORE USE.
®
Copyright © 2004 by Harbor Freight Tools . All rights reserved. No portion of this
manual or any artwork contained herein may be reproduced in any shape or form
without the express written consent of Harbor Freight Tools.
For technical
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Specifications Maximum Torque 1450 Ft. Lbs. Drive Size 1” Air Inlet 1/2” - 14 NPT Recommended Air Pressure 90 PSI Maximum Air Pressure 120 PSI Blows Per Minute 800 Air Consumption 12 CFM Tool Weight 27.7 Lbs. Impact Mechanism Twin Hammer Save This Manual You will need the manual for the safety warnings and precautions, assembly instructions, operating and maintenance procedures, parts list and diagram. Keep your invoice with this manual. Write the invoice number on the inside of the front cove
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7. Use eye and ear protection. Always wear ANSI approved impact safety goggles. Wear a full face shield if you are producing metal filings or wood chips. Wear an ANSI approved dust mask or respirator when working around metal, wood, and chemical dusts and mists. 8. Do not overreach. Keep proper footing and balance at all times. Do not reach over or across running machines or air hoses. 9. Maintain tools with care. Keep tools clean for better and safer performance. Follow instructions for lubr
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21. This Impact Wrench should only be used with impact sockets and extensions. Using any other accessories can cause the accessories to break, causing permanent damage to the unit and severe injury to the operator. Note: Performance of the compressor (if powered by line voltage) may vary depending on variations in local line voltage. Extension cord usage may also affect tool perfor- mance. Warning: The warnings, cautions, and instructions discussed in this instruction manual cannot cover all pos
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Assembly 1. Place the Handle (48) into the handle slot and secure it with two Screws (49). See FIGURE 1. Securing with the two Screws (49) FIGURE 1 Operation Warning!! This Impact Wrench supplies powerful torque and is designed to be operated with two hands. Failure to operate the Impact Wrench with two hands may result in serious, permanent injury. See FIGURE 3 below. Handle (48) FIGURE 2 Trigger (21) Anvil (43) Air Inlet (23) Air Coupler Wrench (54) Forward/Reverse Valve (34) FIGURE 3 Prope
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Operation (continued) Refer to FIGURES 2 and 4, and the Assembly Drawing on page 9. Note: Turn off your air compressor and disconnect the air hose when you are changing sockets. After you attach the socket, attach the air hose and turn the air compressor on. 1. Select the appropriate size 1” drive socket for your needs. 2. Push and snap the socket (not included) onto the Anvil (43). 3. To operate the Forward/Reverse Valve (34) follow the directions in FIGURE 5 below. FIGURE 4 Oil Screw (22) Fo
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Operation (continued) Loosening Note: Set the Forward/Reverse Valve (34) so that the anvil turns counterclockwise (reverse). 9. Place the socket (not included) over the nut you wish to loosen. 10. Grip the Impact Wrench firmly with two hands and gently squeeze the Trigger (21). Note: If the Impact Wrench cannot loosen the nut, do not raise the air pressure on the compressor over 120 PSI. Do not attempt to loosen the nut with the Impact Wrench. Use other appropriate methods and tools to loosen t
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Parts List Part No. Description Qty. Part No. Description Qty. 1 Bumper 1 28 Valve Spring 1 2 Spacer 1 29 0-ring 1 3 0-ring 1 30 Screw 1 4 Screw 4 31 Spring 1 5 Nut 4 32 Bearing 1 6 Motor Housing 1 33 Roll Pin 1 7 Bearing 2 34 Forward/Reverse Valve 1 8 Roll Pin 2 35 0-ring 1 9 Rear End Plate 1 36 Roll Pin 1 10 Cylinder 1 37 Reverse Valve 1 11 Rotor 1 38 Valve Bushing 1 12 Blade 6 39 Roll Pin 1 13 Roll Pin 1 40 Impact Ring 2 14 Front End Plate 1 41 Impact Cage 1 15 Handle Gasket 1 42 Impact Pin 2
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Assembly Drawing Note: The Wrench (54) is not shown. SKU 92427 For technical questions, please call 1-800-444-3353 Page 9
