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SKU 92421

For technical questions, please call 1-800-444-3353

Specifications

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 cover.  Keep the manual and
invoice in a safe and dry place for future reference.

Safety Warnings and Precautions

WARNING: When using tool, basic safety precautions should always be followed to
reduce the risk of personal injury and damage to equipment.

Read all instructions before using this tool!

1.

Keep work area clean.  Cluttered areas invite injuries.

2.

Observe work area conditions.  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, extension cords, or air hoses.

4.

Store idle equipment.  When not in use, tools must be stored in a dry location to

inhibit rust.  Always lock up tools and keep out of reach of children.

5.

Use the right tool for the job.   Do not attempt to force a small tool or

        attachment to do the work of a larger industrial tool.  There are certain applications for
        which this tool was designed.  It will do the job better and more safely at the rate for
        which it was intended.  Do not modify this tool and do not use this tool for a purpose for
        which it was not intended.

6.

Dress properly.  Do not wear loose clothing or jewelry as they can be caught in

moving parts.  Protective, electrically nonconductive clothes and nonskid footwear are
recommended when working.  Wear restrictive hair covering to contain long hair.

Maximum Torque

1800 Ft. Lbs.

Drive Size

1”

Air Inlet

1/2”-14 NPT

Recommended Air Pressure

90 PSI

Average Air Consumption

8 CFM

Tool Weight

24.6 Lbs.

Impact Mechanism

Twin Hammer

Summary of Contents for Earthquake 92421

Page 1: ...stions and replacement parts please call 1 800 444 3353 Model 92421 Copyright 2005 by Harbor Freight Tools All rights reserved No portion of this manual or any artwork contained herein may be reproduc...

Page 2: ...able gases or liquids 3 Keep children away Children must never be allowed in the work area Do not let them handle machines tools extension cords or air hoses 4 Store idle equipment When not in use too...

Page 3: ...tool 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...

Page 4: ...g or broken please call Harbor Freight Tools at the number on the cover of this manual as soon as possible For best service you should incorporate an oiler regulator and inline filter as shown in the...

Page 5: ...Case 43 and secure it with four Screws 46 and Washers 46A See FIGURE 1 Operation Warning This Impact Wrench supplies powerful torque and is designed to be operated with two hands Failure to operate t...

Page 6: ...ise arrow to loosen Handle Tightening Note Set the Forward Reverse Valve 17 so that the anvil turns clockwise forward 7 Tighten the nut as tight as you can by hand 8 Place the socket not included over...

Page 7: ...t is loosened release the Trigger 13 Turn off the air compressor and disconnect the hose 15 If needed remove the nut from the socket Maintenance 1 Make sure your Impact Wrench is disconnected from the...

Page 8: ...ORIGINAL PRODUCT OR REPLACEMENT PARTSTHERETO OR ARIS ING OUT OF HIS OR HER INSTALLATION OF REPLACEMENT PARTS THERETO Parts List Part No Description Qty Part No Description Qty 1 Trigger Handle 1 28 Cy...

Page 9: ...Page 9 SKU 92421 For technical questions please call 1 800 444 3353 Assembly Drawing...

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