Harbor Freight Tools 41983 User Manual
1” SDS ROTARY HAMMER
®
41983
OPERATION INSTRUCTIONS
Due to continuing improvements, actual product may differ slightly from the product described herein.
3491 Mission Oaks Blvd., Camarillo, CA 93011
Visit our website at: http://www.harborfreight.com
TO PREVENT SERIOUS INJURY, READ AND UNDERSTAND
ALL WARNINGS AND INSTRUCTIONS BEFORE USE.
Copyright© 2000 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.
Manual Revised 08/05; 09/06
SPECIFICATIONS
Motor 110 V~, 60 Hz, 620 W, n0 750/min
Capacity 1”
Chuck Type SDS
Rotation Reversible
Cord 7’ UL Listed with 2-Pole Polarized Plug
BPM 2920
Weight 10.5 lb.
Also Includes Spanner, (4) SDS Drill Bits (10,12,14 and 22 mm), 4 Point
Chisel, Depth Gauge Rod, Grease, and Carbon Brush Set
E194601E194601
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. Write the
product’s serial number in the back of the manual near the assembly diagram, or write month and
year of purchase if product has no number. Keep this manual and invoice in a safe and dry place
for future reference.
GENERAL SAFETY RULES
1.
2.
3.
WARNING!
READ AND UNDERSTAND ALL INSTRUCTIONS
Failure to follow all instructions listed below may result in
electric shock, fire, and/or serious injury.
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
flammable 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.
For technical questions, please call 1-800-444-3353.
Page 2SKU 41983
ELECTRICAL SAFETY
1.
2.
3.
4.
5.
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.
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.
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.
6.
1.
2.
3.
4.
5.
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
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.
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 finger 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.
For technical questions, please call 1-800-444-3353.
Page 3SKU 41983
6.
Use safety equipment. Always wear eye protection. Dust mask, nonskid safety shoes,
hard hat, or hearing protection must be used for appropriate conditions. Always wear ANSI-
approved safety goggles and a dust mask/respirator when using or performing maintenance
on this tool.
TOOL USE AND CARE
1.
2.
3.
4.
5.
6.
7.
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 force the tool and do
not use the tool for a purpose for which it is not intended.
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. Always unplug the tool from its electrical outlet
before performing any inspection, maintenance, or cleaning procedures.
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.
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.
1.
2.
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 qualified repair personnel. Service or
maintenance performed by unqualified 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.
For technical questions, please call 1-800-444-3353.
Page 4SKU 41983
SPECIFIC SAFETY RULES
1.
2.
3.
4.
5.
6.
7.
8.
Hold tools by insulated gripping surfaces when performing an operation where the
cutting tool may contact hidden wiring or its own cord. Contact with a “live” wire will
make exposed metal parts of the tool “live” and shock the operator.
Wear ear protectors when using the tool for extended periods. Prolonged exposure to
high intensity noise can cause hearing loss.
Maintain labels and nameplates on the tool. These carry important information. If
unreadable or missing, contact Harbor Freight Tools for a replacement.
Maintain a safe working environment. Make sure there is adequate surrounding
workspace. Do not use this product in a damp or wet location.
When using a handheld power tool, always maintain a firm grip on the tool with both
hands to resist starting torque. Always use the Auxiliary Handle to control kickback and
torque reactions.
Do not operate the Rotary Hammer if any of the following problems occur: Hammer
is too hot, insulation is torn, frayed or missing or if excessive sparking occurs.
Move the Switching Knob (22) and Main Handle (91) only when the motor is stopped.
Attempting to move either one while the motor is engaged will result in abrupt bit rotation,
and can cause serious personal injury and/or property damage.
Do not allow the bit to stop while in the hole. Remove the bit while it is still rotating. If
the bit stops while in the hole, do not restart the Rotary Hammer. Remove the bit from the
Hammer and then remove it from the material being worked on.
9.
10.
11.
12.
13.
Avoid unintentional starting. Make sure you are prepared to begin work before turning
on the tool.
Always keep the extension cord away from moving parts on the tool.
WARNING! People with pacemakers should consult their physician(s) before using this
product. Electromagnetic fields in close proximity to a heart pacemaker could cause
interference to or failure of the pacemaker. In addition, people with pacemakers should
adhere to the following:
Avoid operating power tools alone.
•
Don’t use a power tool with the power switch locked on.
•
If powered via a power cord be certain that the tool is properly grounded. A ground fault
•
interrupt (GFCI) system is also a good precaution. This inexpensive device is a good
safety measure because it prevents a sustained electrical shock.
Properly maintain and inspect all tools before use to avoid electrical shock.
•
Never lay the tool down until it has come to a complete stop. Moving parts can grab
the surface and pull the tool out of your control.
Never leave the tool unattended when it is plugged into an electrical outlet. Turn off
the tool, and unplug it from its electrical outlet before leaving.
For technical questions, please call 1-800-444-3353.
Page 5SKU 41983
14.
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 these chemicals are:
Lead from lead-based paints.
•
Crystalline silica from bricks and cement or other masonry products.
•
Arsenic and chromium from chemically treated lumber.
•
Your risk from these exposures varies, depending on how often you do this type of work.
To reduce your exposure to these chemicals: work in a well-ventilated area, and work with
approved safety equipment, such as those dust masks that are specially designed to filter
out microscopic particles.
(California Health & Safety Code § 25249.5, et seq.)
GROUNDING
WARNING!
Improperly connecting the grounding wire can result in the risk of electric shock.
Check with a qualified electrician if you are in doubt as to whether the outlet is properly
grounded. Do not modify the power cord plug provided with the tool. Never remove
the grounding prong from the plug. Do not use the tool if the power cord or plug is
damaged. If damaged, have it repaired by a service facility before use. If the plug will
not fit the outlet, have a proper outlet installed by a qualified electrician.
1.
2.
GROUNDED TOOLS: TOOLS WITH THREE PRONG PLUGS
Tools marked with “Grounding Required” have a three wire cord and three prong grounding
plug. The plug must be connected to a properly grounded outlet. If the tool should electrically
malfunction or break down, grounding provides a low resistance path to carry electricity
away from the user, reducing the risk of electric shock. (See Figure A.)
The grounding prong in the plug is connected through the green wire inside the cord to the
grounding system in the tool. The green wire in the cord must be the only wire connected
to the tool’s grounding system and must never be attached to an electrically “live” terminal.
(See Figure A.)
For technical questions, please call 1-800-444-3353.
Page 6SKU 41983
3.
Your tool must be plugged into an appropriate outlet, properly installed and grounded in
accordance with all codes and ordinances. The plug and outlet should look like those in
the following illustration. (See Figure A.)
FIGURE A FIGURE B
DOUBLE INSULATED TOOLS: TOOLS WITH TWO PRONG PLUGS
Note: This tool has a two-prong plug.
1.
2.
1.
2.
3.
4.
Tools marked “Double Insulated” do not require grounding. They have a special double
insulation system which satisfies OSHA requirements and complies with the applicable
standards of Underwriters Laboratories, Inc., the Canadian Standard Association, and the
National Electrical Code. (See Figure B.)
Double insulated tools may be used in either of the 120 volt outlets shown in the preceding
illustration. (See Figure B.)
EXTENSION CORDS
Grounded tools require a three wire extension cord. Double Insulated tools can use either
a two or three wire extension cord.
As the distance from the supply outlet increases, you must use a heavier gauge extension
cord. Using extension cords with inadequately sized wire causes a serious drop in voltage,
resulting in loss of power and possible tool damage.
(See Figure C, next page.)
The smaller the gauge number of the wire, the greater the capacity of the cord. For example,
a 14 gauge cord can carry a higher current than a 16 gauge cord.
(See Figure C.)
When using more than one extension cord to make up the total length, make sure each
cord contains at least the minimum wire size required. (See Figure C.)
5.
6.
If you are using one extension cord for more than one tool, add the nameplate amperes
and use the sum to determine the required minimum cord size.
(See Figure C.)
If you are using an extension cord outdoors, make sure it is marked with the suffix “W-A”
(“W” in Canada) to indicate it is acceptable for outdoor use.
For technical questions, please call 1-800-444-3353.
Page 7SKU 41983
7.
Make sure your extension cord is properly wired and in good electrical condition. Always
replace a damaged extension cord or have it repaired by a qualified electrician before
using it.
8.
Protect your extension cords from sharp objects, excessive heat, and damp or wet areas.
RECOMMENDED MINIMUM WIRE GAUGE FOR EXTENSION CORDS*
(120 OR 240 VOLT)
NAMEPLATE
EXTENSION CORD LENGTH
AMPERES
(at full load)
0 – 2.0 18 18 18 18 16
2.1 – 3.4 18 18 18 16 14
3.5 – 5.0 18 18 16 14 12
5.1 – 7.0 18 16 14 12 12
7.1 – 12.0 18 14 12 10 -
12.1 – 16.0 14 12 10 - -
16.1 – 20.0 12 10 - - -
FIGURE C
25 Feet 50 Feet 75 Feet 100 Feet 150 Feet
* Based on limiting the line voltage drop to five volts at 150% of the rated amperes.
SYMBOLOGY
Double Insulated
Canadian Standards Association
Underwriters Laboratories, Inc.
V~
A
n0 xxxx/min.
Volts Alternating Current
Amperes
No Load Revolutions per Minute (RPM)
UNPACKING
When unpacking, check to make sure that the item is intact and undamaged. If any
parts are missing or broken, please call Harbor Freight Tools at the number shown on the
cover of this manual as soon as possible.
For technical questions, please call 1-800-444-3353.
Page 8SKU 41983
SETUP AND SETTINGS
The 1” Rotary hammer is designed to be used in the following applications:
For drilling stone, concrete, and other hard and brittle materials.
•
For chiseling.
•
Switching Knob (22)
Switch (96)
Main Handle (91)
Dust Cover (104)
Spring (41)
Depth
Gauge (106)
Auxiliary Handle (107)
Carbon Brush (82)
FIGURE 1 - Operating Your Rotary Hammer
Drill Bit
See Figure 1 above to become familiar with the various features of the Rotary Hammer.
A complete part number listing is shown on page 9. The complete Assembly Diagram is located
on page 10.
Inserting and Removing Drill Bits
Warning: Always wear gloves to provide protection when inserting and removing drill bits. Drill
bits become very hot in use. Do not remove drill bits until the bit has completely cooled off.
Do not strike stuck bits with a hammer as metal chips may fly off.
Always remove the electrical plug from the electrical outlet when inserting and removing
bits and chisels.
1.
2.
3.
4.
Your Rotary Hammer comes with a Dust Cover (104). Slide the Dust Cover over the Front
Cover (39).
Add a coating of grease or machine oil to the drill or bit shank.
Pull back on the Spring (41) - see Figure 1, while simultaneously inserting and turning the
drill bit until it slides all the way in. Release the Spring (41) so that it returns to its original
position. You should not be able to move the bit without pulling back on the spring again.
Make certain the bit does not move, this will ensure that it is properly installed.
To remove the bit, pull back on the Spring (41) and pull out the bit.
For optimal performance, always keep bit and chisels properly sharpened.
For technical questions, please call 1-800-444-3353.
Page 9SKU 41983
Note: When drilling a hole larger than 1-1/4” diameter, always use a drill bit with 4 cutting
edges.
Adjusting the Auxiliary Handle
The Auxiliary Handle (107) can be placed into a variety of different positions.
To rotate the Auxiliary Handle (107), turn the Auxiliary Handle (107) counterclockwise to
loosen the band and Foursquare Bolt (111). Once loosened, turn the Auxiliary Handle to
the position desired. Turn the Handle clockwise to tighten into place.
Using the Depth Gauge
The Depth Gauge (106) can only be used if the Auxiliary Handle (107) is positioned on
either side or the top of the Rotary Hammer. The body of the Hammer will interfere with the Depth
Gauge if the handle is in the bottom position.
1.
2.
Main Handle-Left Side Position
3.
Loosen the Auxiliary Handle (107) by twisting the Handle counterclockwise.
Once the Auxiliary Handle (107) is sufficiently loose, pull back on the Handle Holder (108)
until the hole in the Handle Holder (108) is fully open.
Slide the Depth Gauge (106) in to the desired length.
The tip of the Depth Gauge on the front of the Hammer should be the desired depth of the
hole to be drilled. The depth is from the tip of the bit to the tip of the Depth Gauge. For
example for a 2” hole, measure 2” back from the tip of the bit. Position the front tip of the
Depth Gauge at that spot (See Figure 1).
Main Handle-Right Side Position
FIGURE 2 - Changing Settings
Switching Knob
4.
After the Depth Gauge (106) is positioned in the desired position, slide the Handle Holder
(108) up and twist the Auxiliary Handle clockwise until tight. The Depth Gauge should be
securely in position, and should not move.
Changing the Settings
Your Rotary Hammer has both a Switching Knob (22) and a Main Handle (91) which must
•
be adjusted before drilling, hammer drilling, or chiselling - see Figure 2.
For technical questions, please call 1-800-444-3353.
Page 10SKU 41983
Loading...