RIDGID R841151 User Manual
®
OPERATOR’S MANUAL
1/2 in. 18 VOLT HAMMER DRILL
R841151
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This new drill has been engineered and manufactured to our high standards for dependability, ease of operation, and operator
safety. When properly cared for, the drill will give you years of rugged, trouble-free performance.
WARNING:
To reduce the risk of injury, the user must read and understand the operator’s manual before using this product.
Thank you for buying a RIDGID product.
SAVE THIS MANUAL FOR FUTURE REFERENCE
TABLE OF CONTENTS
Introduction .................................................................................................................................................................... 2
General Safety Rules .................................................................................................................................................. 3-4
Specific Safety Rules ..................................................................................................................................................... 4
Important Safety Instructions for Charger ...................................................................................................................... 5
Symbols ......................................................................................................................................................................... 6
Features ...................................................................................................................................................................... 7-8
Unpacking ...................................................................................................................................................................... 9
Operation ................................................................................................................................................................ 10-17
Maintenance ........................................................................................................................................................... 18-19
Warranty ...................................................................................................................................................................... 20
Customer Service Information ..................................................................................................................................... 22
INTRODUCTION
The 18 Volt Cordless Hammer Drill has many features for making the use of this product more pleasant and enjoyable.
Safety, performance, and dependability have been given top priority in the design of this product making it easy to
maintain and operate.
WARNING:
Do not attempt to use this product until you thoroughly read and completely understand the operator’s manual. Pay
close attention to the safety rules, including Dangers, Warnings, and Cautions. If you use your product properly and
only as intended, you will enjoy years of safe, reliable service.
Look for this symbol to point out important safety precautions. It
means attention!!! Your safety is involved.
WARNING:
The operation of any tool can result in foreign objects being thrown into your eyes, which can result in severe
eye damage. Before beginning operation, always wear safety goggles or safety glasses with side shields and
a full face shield when needed. We recommend Wide Vision Safety Mask for use over eyeglasses or
standard safety glasses with side shields. Always wear eye protection which is marked to comply with ANSI
Z87.1.
2
GENERAL SAFETY RULES
WARNING:
Read and understand all instructions. Failure to
follow all instructions listed below, may result in
electric shock, fire and/or serious personal 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.
ELECTRICAL SAFETY
A battery operated tool with integral batteries or a
separate battery pack must be recharged only with
the specified charger for the battery. A charger that
may be suitable for one type of battery may create a risk
of fire when used with another battery.
Use battery operated tool only with specifically
designated battery pack. Use of any other batteries may
create a risk of fire.
Use battery only with charger listed.
MODEL BATTERY PACK CHARGER
R841151 130254003 140276002
Do not abuse the cord. Never use the cord to carry
the charger. Keep cord away from heat, oil, sharp
edges, or moving parts. Replace damaged cords immediately. Damaged cords may create a fire.
PERSONAL SAFETY
Stay alert, watch what you are doing and use com-
mon sense when operating a power tool. Do not use
tool while tired or under the influence of drugs, alcohol, or medication. A moment of inattention while oper-
ating power tools may result in serious personal injury.
Dress properly. Do not wear loose clothing or jew-
elry. Contain long hair. Keep your hair, clothing, and
gloves away from moving parts. Loose clothes, jew-
elry, or long hair can be caught in moving parts.
Avoid accidental starting. Be sure switch is in the
locked or off position before inserting battery pack.
Carrying tools with your finger on the switch or inserting
the battery pack into a tool with the switch on invites accidents.
Remove adjusting keys or wrenches before turning
the tool on. A wrench or a key that is left attached to a
rotating part of the tool may result in personal injury.
Do not overreach. Keep proper footing and balance
at all times. Proper footing and balance enable better
control of the tool in unexpected situations.
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
Use clamps or other practical way to secure and sup-
port 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 tool. Use the correct tool for your appli-
cation. The correct tool will do the job better and safer at
the rate for which it is designed.
Do not use tool if switch does not turn it on or off. A
tool that cannot be controlled with the switch is dangerous and must be repaired.
Disconnect battery pack from tool or place the switch
in the locked or off position 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.
When battery pack is not in use, keep it away from
other metal objects like: paper clips, coins, keys, nails,
screws, or other small metal objects that can make a
connection from one terminal to another. Shorting the
battery terminals together may cause sparks, burns, or a
fire.
Maintain tools with care. Keep cutting tools sharp
and clean. Properly maintained tools with sharp cutting
edges are less likely to bind and are easier to control.
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 create a risk of injury when used
on another tool.
Keep the tool and its handle dry, clean and free from
oil and grease. Always use a clean cloth when cleaning.
Never use brake fluids, gasoline, petroleum-based products, or any strong solvents to clean your tool. Following
this rule will reduce the risk of loss of control and deterioration of the enclosure plastic.
3
GENERAL SAFETY RULES
SERVICE
Tool service must be performed only by qualified
repair personnel. Service or maintenance performed
by unqualified personnel may result in a risk of injury.
When servicing a tool, use only identical replace-
ment parts. Follow instructions in the Maintenance
section of this manual. Use of unauthorized parts or
failure to follow Maintenance Instructions may create a
risk of shock or injury.
SPECIFIC SAFETY RULES
Hold tool by insulated gripping surfaces when performing an operation where the cutting tool may contact
hidden wiring. Contact with a "live" wire will also make exposed metal parts of the tool "live" and shock the operator.
ADDITIONAL RULES FOR SAFE OPERATION
Know your power tool. Read operator's manual care-
fully. Learn its applications and limitations, as well as
the specific potential hazards related to this tool.
Following this rule will reduce the risk of electric shock,
fire, or serious injury.
Always wear safety glasses with side shields. Every-
day glasses have only impact resistant lenses. They are
NOT safety glasses. Following this rule will reduce the risk
of eye injury.
IMPORTANT RULES FOR BATTERY TOOLS
Battery tools do not have to be plugged into an
electrical outlet; therefore, they are always in operating condition. Be aware of possible hazards when not
using your battery tool or when changing accessories. Following this rule will reduce the risk of electric
shock, fire, or serious personal injury.
Do not place battery tools or their batteries near fire
or heat. This will reduce the risk of explosion and possibly
injury.
WARNING: Batteries vent hydrogen gas and can ex-
plode in the presence of a source of ignition, such as a
pilot light. To reduce the risk of serious personal injury,
never use any cordless product in the presence of open
flame. An exploded battery can propel debris and chemicals. If exposed, flush with water immediately.
Do not charge battery tool in a damp or wet location.
Following this rule will reduce the risk of electric shock.
For best results, your battery tool should be charged in
a location where the temperature is more than 50°F but
less than 100°F. Do not store outside or in vehicles.
Under extreme usage or temperature conditions, bat-
tery leakage may occur. If liquid comes in contact
with your skin, wash immediately with soap and
water, then neutralize with lemon juice or vinegar. If
liquid gets into your eyes, flush them with clean water
for at least 10 minutes, then seek immediate medical
attention. Following this rule will reduce the risk of serious
personal injury.
4
IMPORTANT SAFETY INSTRUCTIONS FOR CHARGER
c. That wire size is large enough for AC ampere
WARNING:
Read and understand all instructions. Failure to
follow all instructions listed below, may result in
electric shock, fire and/or serious personal injury.
Never use a battery that has been dropped or
received a sharp blow. A damaged battery is subject
to explosion. Properly dispose of a dropped battery
immediately. Failure to heed this warning can result in
serious personal injury.
Save these instructions. This manual contains im-
portant safety and operating instructions for charger.
Before using battery charger, read all instructions
and cautionary markings in this manual, on battery
charger, and product using battery charger. Following
this rule will reduce the risk of electric shock, fire, or
serious personal injury.
CAUTION: To reduce risk of injury, charge only
nickel-cadmium type rechargeable batteries. Other
types of batteries may burst causing personal injury
and damage. Following this rule will reduce the risk of
electric shock, fire, or serious personal injury.
Do not expose charger to wet or damp conditions.
Following this rule will reduce the risk of electric shock,
fire, or serious personal injury.
Use of an attachment not recommended or sold by
the battery charger manufacturer may result in a risk
of fire, electric shock, or injury to persons. Following
this rule will reduce the risk of electric shock, fire, or
serious personal injury.
To reduce risk of damage to charger body and cord,
pull by charger plug rather than cord when disconnecting charger. Following this rule will reduce the risk
of electric shock, fire, or serious personal injury.
Make sure cord is located so that it will not be
stepped on, tripped over, or otherwise subjected to
damage or stress. Following this rule will reduce the risk
of serious personal injury.
Do not abuse cord. Never carry tool by cord or yank
it to disconnect from receptacle. Keep cord from
heat, oil and sharp edges. Following this rule will
reduce the risk of electric shock or fire.
An extension cord should not be used unless abso-
lutely necessary. Use of improper extension cord could
result in a risk of fire and electric shock. If extension cord
must be used, make sure:
a. That pins on plug of extension cord are the
same number, size and shape as those of
plug on charger.
b. That extension cord is properly wired and in
good electrical condition; and
rating of charger as specified below:
Cord Length (Feet) 25' 50' 100'
Cord Size (AWG) 16 16 16
Note: AWG = American Wire Gage
Do not operate charger with a damaged cord or plug.
If damaged, have replaced immediately by a qualified
serviceman. Following this rule will reduce the risk of
electric shock, fire, or serious personal injury.
Do not operate charger if it has received a sharp blow,
been dropped, or otherwise damaged in any way;
take it to a qualified serviceman. Following this rule will
reduce the risk of electric shock, fire, or serious personal
injury.
Do not disassemble charger; take it to a qualified
serviceman when service or repair is required. Incorrect reassembly may result in a risk of electric shock
or fire. Following this rule will reduce the risk of electric
shock, fire, or serious personal injury.
To reduce the risk of electric shock, unplug charger
from outlet before attempting any maintenance or
cleaning. Turning off controls will not reduce this
risk. Following this rule will reduce the risk of electric
shock, fire, or serious personal injury.
Disconnect charger from power supply when not in
use. Following this rule will reduce the risk of electric
shock, fire, or serious personal injury.
Save these instructions. Refer to them frequently and
use them to instruct others who may use this tool. If
you loan someone this tool, loan them these instructions also. Following this rule will reduce the risk of
electric shock, fire, or serious personal injury.
WARNING:
Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains
chemicals known 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 and
other masonry products, and
• 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.
SAVE THESE INSTRUCTIONS
5
SYMBOLS
Important: Some of the following symbols may be used on your tool. Please study them and learn their meaning. Proper
interpretation of these symbols will allow you to operate the tool better and safer.
SYMBOL NAME DESIGNATION/EXPLANATION
V Volts Voltage
A Amperes Current
Hz Hertz Frequency (cycles per second)
min Minutes Time
Alternating Current Type or a characteristic of current
--- Direct Current Type or a characteristic of current
n
0
.../min Revolutions or Reciprocation Per Minute
The purpose of safety symbols is to attract your attention to possible dangers. The safety symbols, and the
explanations with them, deserve your careful attention and understanding. The safety warnings do not by themselves
eliminate any danger. The instructions or warnings they give are not substitutes for proper accident prevention
measures.
Symbol Meaning
No Load Speed Rotational speed, at no load
Revolutions, strokes,
surface speed, orbits etc. per minute
Indicates danger, warning or caution.
Safety Alert Symbol It means attention!!! Your safety is
involved.
Always wear safety goggles or
Wear Eye Protection safety glasses with side shields when
operating this product.
Wet Conditions Alert
Do not expose to rain or use in damp
locations.
DANGER: Indicates an imminently hazardous situation which, if not avoided, will result in death or
serious injury.
WARNING: Indicates a potentially hazardous situation which, if not avoided, could result in death or
serious injury.
CAUTION: Indicates a potentially hazardous situation which, if not avoided, may result in minor or
moderate injury. It may also be used to alert against unsafe practices that may cause property damage.
NOTE: Advises you of information or instructions vital to the operation or maintenance of the equipment.
6
FEATURES
SPECIFICATIONS
Chuck .............................................................................................................................................. 1/2 in. (13 mm) Keyless
Motor .................................................................................................................................................................... 18 Volt DC
Switch............................................................................................................................................................ Variable Speed
Gear Train ................................................................................................................................................................ 2 Speed
No Load Speed
Drill Speed ......................................................................................................................................... 0-400/0-1600/min.
Hammer Speed........................................................................................................................... 0-6400 / 0-25,600/min.
Clutch .................................................................................................................................................................24 Positions
Charger Input .....................................................................................................................................120 V, 60 Hz, AC only
Charge Rate ......................................................................................................................................................... 30 minutes
Torque ....................................................................................................................................................................485 in. lb.
Before using this tool, familiarize yourself with all operating
features and safety requirements. However, do not let
familiarity with the tool make you careless.
This new hammer drill is equipped with the following features.
See Figure 1.
KEYLESS CHUCK
The hammer drill has a keyless chuck that allows you to hand
tighten or release drill bit in the chuck jaws.
SWITCH
The hammer drill has a conveniently located variable speed
switch.
SWITCH LOCK
The switch trigger can be locked in the OFF (Center Lock)
position. This feature helps reduce the possibility of accidental
starting when not in use.
TWO SPEED GEAR TRAIN
The hammer drill has a two-speed gear train designed for
drilling or driving at LO (1) or HI (2) speeds. A slide switch is
located on top of your drill to select either LO (1) or HI (2)
speed.
FORWARD/REVERSE SELECTOR
(DIRECTION OF ROTATION SELECTOR)
The hammer drill has a forward/reverse selector located
above the switch trigger.
AUXILIARY HANDLE
This drill is equipped with an auxiliary handle for ease of
operation and to prevent loss of control.
DEPTH GAGE ROD
A depth gage rod has been supplied with your hammer drill
to assist in controlling the depth of drilled holes.
BIT STORAGE
When not in use, bits provided with the hammer drill can be
placed in the storage area located on the rear of the motor
housing.
CHARGER
The dual port charger fast-charges two batteries at once. It
is equipped with a fan that brings hot batteries to optimum
charging temperature for more efficient charging and longer
battery life. The charger has a “key hole” hanging feature for
convenient, space saving storage. Screws should be installed
so that center distances are 4-1/8 inches apart.
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