Harbor Freight Tools 34923 Owner's Manual
3/4 HP CONCRETE VIBRATOR
Model
34923
SET UP AND OPERATING INSTRUCTIONS
Diagrams within this manual may not be drawn proportionally.
Due to continuing improvements, actual product may differ slightly from the product described herein.
Distributed exclusively by Harbor Freight Tools®.
3491 Mission Oaks Blvd., Camarillo, CA 93011
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© 2003 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 or replacement parts, please call 1-800-444-3353.
Cover Revised 07j
SPECIFICATIONS
Motor 3/4 HP, 110 Volt, 60 Hz, 580 Watts
Vibration Speed 13,000 VPM
Head Dimensions 1-3/8” Diameter x 15-1/8” Long
Flexible Shaft Size 1.216” Diameter x 20.18” Long
Power Cord 18 Gauge
Features a Lock Button Trigger.
SAVE THIS MANUAL
You will need this manual for the safety warnings and precautions, assembly,
operating, inspection, maintenance and cleaning procedures, parts list and assembly
diagram. Keep your invoice with this manual. Write the invoice number on the inside of the
front cover. Keep this manual and invoice in a safe and dry place for future reference.
GENERAL SAFETY RULES
WARNING! Read all instructions
Failure to follow all instructions listed below may result in electric shock,
re, and/or serious injury. The term “power tool” in all of the warnings listed
below refers to your line-operated (corded) power tool or battery-operated
(cordless) power tool.
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SAVE THESE INSTRUCTIONS
WORK AREA
Keep your work area clean and well lit. Cluttered benches and dark areas
invite accidents.
Do not operate power tools in explosive atmospheres, such as in the
presence of ammable liquids, gases, or dust. Power tools create sparks
which may ignite the dust or fumes.
Keep bystanders, children, and visitors away while operating a power tool.
Distractions can cause you to lose control. Protect others in the work area from
debris such as chips and sparks. Provide barriers or shields as needed.
ELECTRICAL SAFETY
Grounded tools must be plugged into an outlet properly installed and
grounded in accordance with all codes and ordinances. Never remove the
grounding prong or modify the plug in any way. Do not use any adapter
plugs. Check with a qualied electrician if you are in doubt as to whether
the outlet is properly grounded. If the tools should electrically malfunction or
Page 2SKU 34923 For technical questions, please call 1-800-444-3353.
break down, grounding provides a low resistance path to carry electricity away
from the user.
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Double insulated tools are equipped with a polarized plug (one blade is
wider than the other). This plug will t in a polarized outlet only one way.
If the plug does not t fully in the outlet, reverse the plug. If it still does
not t, contact a qualied electrician to install a polarized outlet. Do not
change the plug in any way. Double insulation eliminates the need for the
three wire grounded power cord and grounded power supply system.
Avoid body contact with grounded surfaces such as pipes, radiators,
ranges, and refrigerators. There is an increased risk of electric shock if your
body is grounded.
Do not expose power tools to rain or wet conditions. Water entering a power
tool will increase the risk of electric shock.
Do not abuse the Power Cord. Never use the Power Cord to carry the
tools or pull the Plug from an outlet. Keep the Power Cord away from
heat, oil, sharp edges, or moving parts. Replace damaged Power Cords
immediately. Damaged Power Cords increase the risk of electric shock.
When operating a power tool outside, use an outdoor extension cord
marked “W-A” or “W”. These extension cords are rated for outdoor use, and
reduce the risk of electric shock.
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PERSONAL SAFETY
Stay alert. Watch what you are doing, and use common sense when
operating a power tool. Do not use a power tool while tired or under the
inuence of drugs, alcohol, or medication. A moment of inattention while
operating power tools may result in serious personal injury.
Dress properly. Do not wear loose clothing or jewelry. Contain long
hair. Keep your hair, clothing, and gloves away from moving parts. Loose
clothes, jewelry, or long hair can be caught in moving parts.
Avoid accidental starting. Be sure the Power Switch is off before plugging
in. Carrying power tools with your nger on the Power Switch, or plugging in
power tools with the Power Switch on, invites accidents.
Remove adjusting keys or wrenches before turning the power tool on. A
wrench or a key that is left attached to a rotating part of the power tool may result
in personal injury.
Do not overreach. Keep proper footing and balance at all times. Proper
footing and balance enables better control of the power tool in unexpected
situations.
Page 3SKU 34923 For technical questions, please call 1-800-444-3353.
6.
Use safety equipment. Always wear eye protection. Dust mask, non-skid
safety shoes, hard hat, or hearing protection must be used for appropriate
conditions.
TOOL USE AND CARE
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Use clamps (not included) or other practical ways to secure and support
the workpiece to a stable platform. Holding the work by hand or against your
body is unstable and may lead to loss of control.
Do not force the tool. Use the correct tool for your application. The correct
tool will do the job better and safer at the rate for which it is designed.
Do not use the power tool if the Power Switch does not turn it on or off.
Any tool that cannot be controlled with the Power Switch is dangerous and must
be replaced.
Disconnect the Power Cord Plug from the power source before making any
adjustments, changing accessories, or storing the tool. Such preventive
safety measures reduce the risk of starting the tool accidentally.
Store idle tools out of reach of children and other untrained persons. Tools
are dangerous in the hands of untrained users.
Maintain tools with care. Keep cutting tools sharp and clean. Properly
maintained tools with a sharp cutting edge are less likely to bind and are easier
to control. Do not use a damaged tool. Tag damaged tools “Do not use” until
repaired.
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Check for misalignment or binding of moving parts, breakage of parts,
and any other condition that may affect the tool’s operation. If damaged,
have the tool serviced before using. Many accidents are caused by poorly
maintained tools.
Use only accessories that are recommended by the manufacturer for your
model. Accessories that may be suitable for one tool may become hazardous
when used on another tool.
SERVICE
Tool service must be performed only by qualied repair personnel. Service
or maintenance performed by unqualied personnel could result in a risk of injury.
When servicing a tool, use only identical replacement parts. Follow
instructions in the “Inspection, Maintenance, And Cleaning” section of this
manual. Use of unauthorized parts or failure to follow maintenance instructions
may create a risk of electric shock or injury.
Page 4SKU 34923 For technical questions, please call 1-800-444-3353.
SPECIFIC SAFETY RULES
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Maintain labels and nameplates on the Concrete Vibrator. These carry
important information. If unreadable or missing, contact Harbor Freight Tools for
a replacement.
Always wear safety impact eye goggles and heavy work gloves when using
the Concrete Vibrator. Using personal safety devices reduce the risk for injury.
Safety impact eye goggles and heavy work gloves are available from Harbor
Freight Tools.
Maintain a safe working environment. Keep the work area well lit. Make
sure there is adequate surrounding workspace. Always keep the work area free
of obstructions, grease, oil, trash, and other debris. Do not use a power tool in
areas near ammable chemicals, dusts, and vapors. Do not use this product in a
damp or wet location.
Make sure to read and understand all instructions and safety precautions
as outlined in this manual.
When using a hand-held power tool, always maintain a rm grip on the tool
with both hands to resist starting torque.
Always keep the electrical cord away from moving parts on the tool.
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Avoid unintentional starting. Make sure you are prepared to begin work before
turning on the Concrete Vibrator.
Do not force the Concrete Vibrator. This tool will do the work better and safer
at the speed and capacity for which it was designed.
Never leave the Concrete Vibrator unattended when it is plugged into an
electrical outlet. Turn off the tool, and unplug it from its electrical outlet before
leaving.
Always unplug the Concrete Vibrator from its electrical outlet before
performing and inspection, maintenance, or cleaning procedures.
Never carry the Concrete Vibrator by the Vibrating Head or Cable. Always
carry it by the Handle, supporting the head and cable.
Never take the Vibrator Head out of the concrete while it is running. Always
turn off the unit before removing it from concrete or it will throw concrete all over
the worksite.
Keep water and concrete away from the Vibrator motor and do not allow it
to enter the Vibrator Head assembly. This could cause electric shock to the
operator and damage the motor and bearings.
Page 5SKU 34923 For technical questions, please call 1-800-444-3353.
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