Chicago Electric 93853 User Manual
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 improve-
ments, 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
SPECIFICATIONS
Electrical Requirements 120 V~ / 60 Hz / 1500 W
20 A (Start Up) / 9.5 A (No Load) / 13.0 A (With Load)
Power Cord Type: 82” Long / 14 AWG x 2C
Power Cord Plug Type: 2-Prong / Polarized
Power Switch Type: 2-Position Toggle Switch w/Slider Cover
Blows Per Minute 900 ~ 1800 BPM (Using Variable Speed Dial)
Variable Speed Settings 1-2-3-4-5-6
Handle Types Fixed Main Rear Handle (7” x 4-1/4” x 1-3/8”)
Rotating Swivel “D” Style Auxiliary Handle (6” x 5” x 1-1/4”)
Included Chisels Bull Point (13-7/8” Long / Qty. 1)
Spade (1” Wide x 13-7/8” Long / Qty. 1)
Chisel Shank Size 45/64” Diameter
Chisel Retainer Quick-Release Retainer
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,
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.
SAVE THESE INSTRUCTIONS
WORK AREA
Keep your work area clean and well lit.1. Cluttered benches and dark areas
invite accidents.
Do not operate power tools in explosive atmospheres, such as in the 2.
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. 3.
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.
SKU 93853 For technical questions, please call 1-800-444-3353 PAGE 2
REV 06f
ELECTRICAL SAFETY
Grounded tools must be plugged into an outlet properly installed and 1.
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
break down, grounding provides a low resistance path to carry electricity away
from the user.
Double insulated tools are equipped with a polarized plug (one blade is 2.
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, 3.
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. 4. Water entering a power
tool will increase the risk of electric shock.
Do not abuse the Power Cord.5. 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 6.
marked “W-A” or “W”. These extension cords are rated for outdoor use, and
reduce the risk of electric shock.
PERSONAL SAFETY
Stay alert. Watch what you are doing, and use common sense when 1.
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 2.
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.3. 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
Remove adjusting keys or wrenches before turning the power tool on. 4. 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. 5. Proper
footing and balance enables better control of the power tool in unexpected
situations.
Use safety equipment. Always wear eye protection. 6. Dust mask, non-skid
safety shoes, hard hat, or hearing protection must be used for appropriate
conditions.
TOOL USE AND CARE
Use clamps (not included) or other practical ways to secure and support 1.
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. 2. 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. 3.
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 4.
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. 5. Tools
are dangerous in the hands of untrained users.
Maintain tools with care. Keep cutting tools sharp and clean.6. 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.
Check for misalignment or binding of moving parts, breakage of parts, 7.
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 8.
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
Tool service must be performed only by qualied repair personnel. 1. Service
or maintenance performed by unqualied personnel could result in a risk of injury.
When servicing a tool, use only identical replacement parts. Follow 2.
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
Maintain labels and nameplates on the Demolition Hammer.1. These carry
important information. If unreadable or missing, contact Harbor Freight Tools for
a replacement.
Always wear ANSI-approved safety impact eye glasses and a full face 2.
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.
Maintain a safe working environment. 3. 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.
Avoid unintentional starting. 4. Make sure you are prepared to begin work before
turning on the Demolition Hammer.
Do not force the Demolition Hammer. 5. This tool will do the work better and
safer at the speed and capacity for which it was designed.
Keep hands, ngers, and feet safely away from the cutting area.6.
Never leave the Demolition Hammer unattended when it is plugged into an 7.
electrical outlet. Turn off the tool, and unplug it from its electrical outlet before
leaving.
Before using the Demolition Hammer, check to make sure the Chisel is 8.
properly mounted in the Slider of the tool. Make sure the Chisel is sharp, and
is not cracked or bent.
Industrial applications must follow OSHA guidelines.9.
Always hold the Demolition Hammer 10. 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
Do not drill or break into existing walls, oors, or other blind areas where 11.
electrical wiring may exist. If this situation is unavoidable, disconnect all fuses
or circuit breakers feeding the worksite.
Use a metal detector to determine if there are gas or water pipes hidden 12.
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.
Position yourself to avoid being caught between the Demolition Hammer 13.
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.
Do not strike the Chisel with a handheld hammer or sledge hammer when 14.
attempting to dislodge a bound or jammed Chisel. Fragments of metal from
the Chisel could dislodge and strike you or bystanders.
Never place the Demolition Hammer down until the Motor has come to a 15.
complete stop.
The Chisel may become hot after prolonged use. 16. When removing the Chisel
from the tool, avoid contact with skin and use proper protective gloves when
grasping the Chisel.
Do not force the Chisel into the workpiece when cutting. 17. Apply moderate
pressure, allowing the Chisel to cut without being forced.
Never attempt to remove material stuck in the moving parts of the 18.
Demolition Hammer while it is plugged in and running.
Always unplug the Demolition Hammer from its electrical outlet before 19.
performing and inspection, maintenance, or cleaning procedures.
Keep this product and all other tools and equipment away from children 20.
and other unauthorized people. Do not allow spectators in the work area.
Performance of this tool (if powered by line voltage) may vary depending 21.
on variations in local line voltage. Extension cord usage may also affect
tool performance.
Use the right tool for the job. 22. 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.
WARNING!23. 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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