CENTRAL PNEUMATIC 92453 Earthquake Impact Wrench Instruction Manual
- June 17, 2024
- CENTRAL PNEUMATIC
Table of Contents
CENTRAL PNEUMATIC 92453 Earthquake Impact Wrench Instruction Manual
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© 2005 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 questions and replacement parts, 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 compressors 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.
7. Use eye and ear protection. Always wear ANSI approved impact safety
goggles and hearing protection. 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 lubricating and changing accessories.
Inspect tool cords and air hoses periodically and, if damaged, have them
repaired by an authorized technician. The handles must be kept clean, dry, and
free from oil and grease at all times.
10. Disconnect air supply. Disconnect air hose when not in use.
11. Remove adjusting keys and wrenches. Check that keys and adjusting
wrenches are removed from the tool or machine work surface before plugging it
in.
12. Avoid unintentional starting. Be sure the trigger is released when not in
use and before plugging in. Do not carry any tool with your finger on the
trigger, whether it is plugged in or not.
13. Stay alert. Watch what you are doing, use common sense. Do not operate
any tool when you are tired.
14. Check for damaged parts. Before using any 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 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 switch does not turn On and Off properly.
15. Guard against electric shock. Prevent body contact with grounded surfaces
such as pipes, radiators, ranges, and refrigerator enclosures.
16. Replacement parts and accessories. When servicing, use only identical
replacement parts. Use of any other parts will void the warranty. Only use
accessories intended for use with this tool. Approved accessories are
available from Harbor Freight Tools.
17. Do not operate tool if under the influence of alcohol or drugs. Read
warning labels if taking prescription medicine to determine if your judgement
or reflexes are impaired while taking drugs. If there is any doubt, do not
operate the Wrench.
18. Use proper size and type extension cord. If an extension cord is
required, it must be of the proper size and type to supply the correct current
to the compressor without heating up. Otherwise, the extension cord could melt
and catch fire, or cause electrical damage to the compressor. Check your air
compressor’s manual for the appropriate size cord.
19. Maintenance. For your safety, maintenance should be performed regularly
by a qualified technician.
20. Compressed air only. Never use combustible gas as a power source.
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 performance.
Warning: The warnings, cautions, and instructions discussed in this
instruction manual cannot cover all possible conditions and situations that
may occur. It must be understood by the operator that common sense and caution
are factors which cannot be built into this product, but must be supplied by
the operator.
Unpacking
When unpacking, check to make sure the parts listed on page 8 are included. If any parts are missing or broken, please call Harbor Freight Tools at the number on the cover of this manual as soon as possible.
Operation
For best service you should incorporate an oiler, regulator, and inline
filter, as shown in the diagram above. Hoses, couplers, oilers, regulators,
and filters are all available at Harbor
Freight Tools.
1. You will need to prepare a 1/4” air connector (not included) to connect to
the Inlet (6) on the Impact Wrench. First, wrap the 1/4” air connector with
pipe thread seal tape before threading it into the Inlet (6). Connect the 3/8”
ID Air Source Hose to a quick connect coupler (not included), and then to the
Impact Wrench.
Note: If you are not using an automatic oiler system, before operation, add a
few drops of Pneumatic Tool Oil to the airline connection. Add a few drops
more after each hour of continual use.
2. Set the air pressure on the regulator to 90 PSI. Do not exceed the
recommended air pressure of 90 PSI.
3. Check the air connection for leaks. Disconnect from the air source.
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 injury.
Refer to FIGURES 1 through 3 on page 6, and the Assembly Drawing on page 8.
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.
4. Select the appropriate size 3/8” drive socket for your needs.
5. Push and snap the socket (not included) onto the Anvil (31).
6. To operate the Regulator Knob (12), follow the directions in FIGURE 2 on
page 6.
Note: Set the Reverse Valve (9) so that the anvil turns clockwise (forward) –
see FIGURE 3 on page 6.
7. Tighten the nut as tight as you can by hand.
8. Place the socket (not included) over the nut you wish to tighten.
9. Grip the Impact Wrench firmly with two hands and gently squeeze the
Trigger (14).
Note: If the Impact Wrench cannot tighten the nut to your satisfaction, do not
raise the air pressure on the compressor over 90 PSI. Pressures above 90 PSI
will strip the workpiece and damage the tool, potentially causing the tool to
fail, causing serious injury.
Use other appropriate methods and tools to tighten the nut.
10. When the nut is tightened, release the Trigger (14). Turn off the air
compressor and disconnect the hose.
11. If available, check the recommended torque specification for the nut. Use
a torque wrench to tighten the nut to the proper setting after using the
Impact Wrench.
Loosening
Note: Set the Reverse Valve (9) so that the anvil turns counterclockwise
(reverse).
12. Place the socket (not included) over the nut you wish to loosen.
13. Grip the Impact Wrench firmly with two hands and gently squeeze the
Trigger (14).
Note: If the Impact Wrench cannot loosen the nut, do not raise the air
pressure on the compressor over 90 PSI. Do not attempt to loosen the nut with
the Impact Wrench. Use other appropriate methods and tools to loosen the nut.
14. When the nut is loosened, release the Trigger (14). 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 air hose before
attempting any maintenance.
2. Wipe the Impact Wrench down with a lint free cloth after each use.
3. Make sure the Anvil (31) is clear of dirt or debris. If possible, spray it
with compressed air before each use.
4. Annually, or more often if used on a daily basis, use a grease gun (not
included), to inject grease into the Grease Fitting (7). See FIGURE 3.
5. If you do not use an inline oiler/filter system, lubricate the tool daily
by holding it so that the Inlet (6) is facing up. Squeeze the Trigger (14),
and place one or two drops of oil into the Inlet (6). Squeezing the Trigger
(14) allows the oil to circulate in the motor.
Parts List
PLEASE READ THE FOLLOWING CAREFULLY
THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS DIAGRAM IN THIS
MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER NOR DISTRIBUTOR
MAKES ANY REPRESENTATION OR WARRANTY OF ANY KIND TO THE BUYER THAT HE OR SHE
IS QUALIFIED TO MAKE ANY REPAIRS TO THE PRODUCT OR THAT HE OR SHE IS QUALIFIED
TO REPLACE ANY PARTS OF THE PRODUCT. IN FACT, THE MANUFACTURER AND/OR
DISTRIBUTOR EXPRESSLY STATES THAT ALL REPAIRS AND PARTS REPLACEMENTS SHOULD BE
UNDERTAKEN BY CERTIFIED AND 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.
NOTE: Some parts are listed and shown for illustration purposes only and are not available individually as replacement parts.
Assembly Drawing
For technical questions, please call 1-800-444-3353
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References
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