DEMOLITION HAMMER
Model 93853 
Set up 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 contained 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 10d
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SPECIFICATIONS |
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Electrical Requirements |
120 V~ / 60 Hz / 1500 W |
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20 A (Start Up) / 9.5 A (No Load) / 13.0 A (With Load) |
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Power Cord Type: 82” Long / 14 AWG x 2C |
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Power Cord Plug Type: 2-Prong / Polarized |
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Power Switch Type: 2-Position Toggle Switch w/Slider Cover |
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Blows Per Minute |
900 ~ 1800 BPM (Using Variable Speed Dial) |
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Variable Speed Settings |
1-2-3-4-5-6 |
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Handle Types |
Fixed Main Rear Handle (7” x 4-1/4” x 1-3/8”) |
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Rotating Swivel “D” Style Auxiliary Handle (6” x 5” x 1-1/4”) |
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Included Chisels |
Bull Point (13-7/8” Long / Qty. 1) |
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Spade (1” Wide x 13-7/8” Long / Qty. 1) |
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Chisel Shank Size |
45/64” Diameter |
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Chisel Retainer |
Quick-Release Retainer |
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Note: SDS and SDS MAX chisels (both not included) can be used with this Demolition Hammer.
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, fire, 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.
SAVE THESE INSTRUCTIONS
WORK AREA
1.Keep your work area clean and well lit. Cluttered benches and dark areas invite accidents.
2.Do not operate power tools in explosive atmospheres, such as in the presence of flammable liquids, gases, or dust. Power tools create sparks which may ignite the dust or fumes.
3.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.
REV 06f
SKU 93853 |
For technical questions, please call 1-800-444-3353 |
PAGE 2 |
ELECTRICAL SAFETY
1.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 qualified electrician if you are in doubt as to whether the outlet is properly grounded. If the tools should electrically malfunction or break down, grounding provides a low resistance path to carry electricity away from the user.
2.Double insulated tools are equipped with a polarized plug (one blade is wider than the other). This plug will fit in a polarized outlet only one way. If the plug does not fit fully in the outlet, reverse the plug. If it still does not fit, contact a qualified 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.
3.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.
4.Do not expose power tools to rain or wet conditions. Water entering a power tool will increase the risk of electric shock.
5.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.
6.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.
PERSONAL SAFETY
1.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 influence of drugs, alcohol, or medication. A moment of inattention while operating power tools may result in serious personal injury.
2.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.
3.Avoid accidental starting. Be sure the Power Switch is off before plugging in. Plugging in power tools with the Power Switch on invites accidents.
SKU 93853 |
For technical questions, please call 1-800-444-3353 |
PAGE 3 |
4.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.
5.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.
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
1.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.
2.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.
3.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.
4.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.
5.Store idle tools out of reach of children and other untrained persons. Tools are dangerous in the hands of untrained users.
6.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.
7.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.
8.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.
SKU 93853 |
For technical questions, please call 1-800-444-3353 |
PAGE 4 |
SERVICE
1.Tool service must be performed only by qualified repair personnel. Service or maintenance performed by unqualified personnel could result in a risk of injury.
2.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.
SPECIFIC SAFETY RULES
1.Maintain labels and nameplates on the Demolition Hammer. These carry important information. If unreadable or missing, contact Harbor Freight Tools for a replacement.
2.Always wear ANSI-approved safety impact eye glasses and a full face shield when using the Demolition Hammer. Also wear heavy-duty steel-toe boots, hearing protection, dust mask or respirator, and heavy duty work gloves. Using personal safety devices reduce the risk for injury.
3.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 flammable chemicals, dusts, and vapors. Do not use this product in a damp or wet location.
4.Avoid unintentional starting. Make sure you are prepared to begin work before turning on the Demolition Hammer.
5.Do not force the Demolition Hammer. This tool will do the work better and safer at the speed and capacity for which it was designed.
6.Keep hands, fingers, and feet safely away from the cutting area.
7.Never leave the Demolition Hammer unattended when it is plugged into an electrical outlet. Turn off the tool, and unplug it from its electrical outlet before leaving.
8.Before using the Demolition Hammer, check to make sure the Chisel is properly mounted in the Slider of the tool. Make sure the Chisel is sharp, and is not cracked or bent.
9.Industrial applications must follow OSHA guidelines.
10.Always hold the Demolition Hammer with both hands by its insulated gripping surfaces; this offers protection against electrical shock, if the tool’s Chisel contacts hidden wiring or its own Power Cord.
SKU 93853 |
For technical questions, please call 1-800-444-3353 |
PAGE 5 |
11.Do not drill or break into existing walls, floors, or other blind areas where electrical wiring may exist. If this situation is unavoidable, disconnect all fuses or circuit breakers feeding the worksite.
12.Use a metal detector to determine if there are gas or water pipes hidden in the work area or call the local utility company for assistance before beginning the operation. Striking or cutting into a gas line will result in explosion. Water entering an electrical device may cause electrocution.
13.Position yourself to avoid being caught between the Demolition Hammer or Auxiliary Handle and walls or posts. Should the Chisel become bound or jammed in the work, the reaction of the tool could crush your hand or leg.
14.Do not strike the Chisel with a handheld hammer or sledge hammer when attempting to dislodge a bound or jammed Chisel. Fragments of metal from the Chisel could dislodge and strike you or bystanders.
15.Never place the Demolition Hammer down until the Motor has come to a complete stop.
16.The Chisel may become hot after prolonged use. When removing the Chisel from the tool, avoid contact with skin and use proper protective gloves when grasping the Chisel.
17.Do not force the Chisel into the workpiece when cutting. Apply moderate pressure, allowing the Chisel to cut without being forced.
18.Never attempt to remove material stuck in the moving parts of the Demolition Hammer while it is plugged in and running.
19.Always unplug the Demolition Hammer from its electrical outlet before performing and inspection, maintenance, or cleaning procedures.
20.Keep this product and all other tools and equipment away from children and other unauthorized people. Do not allow spectators in the work area.
21.Performance of this tool (if powered by line voltage) may vary depending on variations in local line voltage. Extension cord usage may also affect tool performance.
22.Use the right tool for the job. Do not attempt to force a small tool 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 is not intended.
23.WARNING! Some dust created by power sanding, sawing, grinding, drilling, and other construction activities, contain chemicals known (to the State of California) to cause cancer, birth defects or other reproductive harm. Some examples of
SKU 93853 |
For technical questions, please call 1-800-444-3353 |
PAGE 6 |
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