Kobalt 5 IN. BRUSHLESS RANDOM ORBIT SANDER, KOS 2450B-03 Operating Instructions, Maintenance Instructions
AB16874
Questions, problems, missing parts? Before returning to your retailer, call our customer
service department at 1-888-3KOBALT (1-888-356-2258), 8 a.m. - 8 p.m., EST,
Monday - Friday.
ATTACH YOUR RECEIPT HERE
Serial Number Purchase Date
Español p. 13
ITEM #0836361/0854724
5 IN. BRUSHLESS
RANDOM ORBIT SANDER
MODEL #KOS 2450B-03
2
TABLE OF CONTENTS
Product Specications ................................................................................................ 2
Package Contents ...................................................................................................... 3
Safety Information ......................................................................................................4
Preparation ................................................................................................................. 7
Operating Instructions ................................................................................................7
Care and Maintenance ............................................................................................. 10
Troubleshooting ........................................................................................................ 11
Warranty ................................................................................................................... 11
PRODUCT SPECIFICATIONS
COMPONENT SPECIFICATION
Rated voltage 24 V d.c.
No-load speed 7,000 - 11,000 OPM
Sanding pad diameter 5 in.
Orbit diameter 1/8 in.
3
PACKAGE CONTENTS
A
C
B D E F
G
PART DESCRIPTION PART DESCRIPTION
A ON/OFF switch E Dust-exhaust adaptor
B Variable-speed dial F Dust bag
C Sanding pad G Sandpaper (3 pcs.)
D Dust connection
WARNING
• Remove the tool from the package and examine it carefully. Do not discard the carton or any
packaging material until all parts have been examined.
• If any part of the tool is missing or damaged, do not connect the plug to the power source or
use the tool until the part has been repaired or replaced. Failure to heed this warning could
result in serious injury.
4
SAFETY INFORMATION
Please read and understand this entire manual before attempting to assemble or operate
this product. If you have any questions regarding the product, please call customer service at
1-888-3KOBALT, 8 a.m. - 8 p.m., EST, Monday - Friday.
WARNING
• The operation of any power tool can result in foreign objects being thrown into your eyes,
which can result in severe eye damage. Before beginning power-tool operation, always wear
safety goggles or safety glasses with side shields and a full-face shield, when needed. It is
recommended to use a wide vision safety mask over eyeglasses or standard safety glasses
with shields. Always use eye protection marked to comply with ANSI Z87.1.
• Some dust created by power sanding, sawing, grinding, drilling, and other construction
activities contains 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, cement, and other masonry products
– Arsenic and chromium from chemically-treated lumber
• Your risk from these exposures varies, depending upon how often you do this type of work.
To reduce your exposure to these chemicals:
– Work in a well-ventilated area.
– Work with approved safety equipment, such as dust masks that are specially designed to
lter out microscopic particles.
– Avoid prolonged contact with dust from power sanding, sawing, grinding, drilling, and
other construction activities. Wear protective clothing and wash exposed areas with soap
and water. Allowing dust to get into your mouth or eyes or to lie on the skin may promote
absorption of harmful chemicals.
Know the Tool
To operate this tool, carefully read this manual and all labels afxed to the tool before using it.
Keep this manual available for future reference.
Important
This tool should be serviced only by a qualied service technician.
Read All Instructions Thoroughly
Some of the following symbols may be used on this tool. Please study them and their meaning.
Proper interpretation of these symbols will allow you to operate the tool better and more safely.
SYMBOL DEFINITION SYMBOL DEFINITION
V Volts n
0
No-load Speed
A Amps /min Revolutions or Strokes per Minute
Hz Hertz
Direct Current
W Watts
Alternating Current
5
SAFETY INFORMATION
General Power Tool Safety Warnings
WARNING
• Read all safety warnings and all instructions. Failure to follow the warnings and
instructions may result in electric shock, re and/or serious injury.
Save all warnings and instructions for future reference
The term “power tool” in the warnings refers to your mains-operated (corded) power tool or
battery-operated (cordless) power tool.
Work Area Safety
• Keep work area clean and well lit. Cluttered or 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 children and bystanders away while operating a power tool. Distractions can
cause you to lose control.
Electrical Safety
• Power tool plugs must match the outlet. Never modify the plug in any way. Do not use
any adaptor plugs with earthed (grounded) power tools. Unmodied plugs and matching
outlets will reduce the risk of electric shock.
• Avoid body contact with earthed or grounded surfaces such as pipes, radiators, ranges
and refrigerators. There is an increased risk of electric shock if your body is earthed or
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 cord. Never use the cord for carrying, pulling or unplugging the
power tool. Keep the cord away from heat, oil, sharp edges or moving parts. Damaged
or entangled cords increase the risk of electric shock.
• When operating a power tool outdoors, use an extension cord suitable for outdoor
use. Use of a cord suitable for outdoor use reduces the risk of electric shock.
• If operating a power tool in a damp location is unavoidable, use a ground-fault circuit
interrupter (GFCI) protected supply. Use of a GFCI reduces 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 you are tired or under the inuence of drugs,
alcohol or medication. A moment of inattention while operating power tools may result in
serious personal injury.
• Use personal protective equipment. Always wear eye protection. Protective equipment
such as dust mask, non-skid safety shoes, hard hat, or hearing protection, used for
appropriate conditions, will reduce personal injuries.
• Prevent unintentional starting. Ensure that the switch is in the off-position before
connecting to power source and/or battery pack, picking up or carrying the tool.
Carrying power tools with your nger on the switch or energizing power tools that have the
switch on invites accidents.
6
SAFETY INFORMATION
• Remove any adjusting key or wrench before turning the power tool on. A wrench or a
key 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. This enables better
control of the power tool in unexpected situations.
• Dress properly. Do not wear loose clothing or jewelry. Keep your hair, clothing and gloves
away from moving parts. Loose clothes, jewelry or long hair can be caught in moving parts.
• If devices are provided for the connection of dust extraction and collection facilities,
ensure that these are connected and properly used. Use of these devices can reduce
dust-related hazards.
Power Tool Use and Care
• Do not force the power tool. Use the correct power tool for your application. The
correct power tool will do the job better and safer at the rate for which it was designed.
• Do not use the power tool if the switch does not turn it on and off. Any power tool that
cannot be controlled with the switch is dangerous and must be repaired.
• Disconnect the plug from the power source and/or the battery pack from the power
tool before making any adjustments, changing accessories, or storing power tools.
Such preventive safety measures reduce the risk of starting the power tool accidentally.
• Store idle power tools out of the reach of children and do not allow persons
unfamiliar with the power tool or these instructions to operate the power tool. Power
tools are dangerous in the hands of untrained users.
• Maintain power tools. Check for misalignment or binding of moving parts, breakage
of parts and any other condition that may affect the power tool’s operation. If
damaged, have the power tool repaired before use. Many accidents are caused by poorly
maintained power tools.
• Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp cutting
edges are less likely to bind and are easier to control.
• Use the power tool, accessories, tool bits, etc., in accordance with these instructions,
taking into account the working conditions and the work to be performed. Use of the
power tool for operations different from those intended could result in a hazardous situation.
Battery Tool Use and Care
• Recharge only with the charger specied by the manufacturer. A charger that is suitable
for one type of battery pack may create a risk of re when used with another battery pack.
• Use power tools only with specically designated battery packs. Use of any other
battery packs may create a risk of injury and re.
• 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 burns or a re.
• Under abusive conditions, liquid may be ejected from the battery; avoid contact. If
contact accidentally occurs, ush with water. If liquid contacts eyes, additionally seek
medical help. Liquid ejected from the battery may cause irritation or burns.
Service
• Have your power tool serviced by a qualied repair person using only identical
replacement parts. This will ensure that the safety of the power tool is maintained.
7
PREPARATION
Know Your Random Orbit Sander
This sander can be used for the purpose listed: sanding wood and wood product surface.
Before attempting to use the sander, familiarize yourself with all of its operating features and
safety requirements.
WARNING
• Do not allow familiarity with the tool to cause carelessness. Remember that one careless
moment is enough to cause severe injury. Before attempting to use any tool, be sure to
become familiar with all of the operating features and safety instructions.
• Do not attempt to modify this tool or create accessories not recommended for use with this
tool. Any such alteration or modication is misuse and could result in a hazardous condition
leading to possible serious personal injury.
OPERATING INSTRUCTIONS
1. To Attach Battery Pack
a. Make sure that the ON/OFF switch (A) is in the
OFF position (the O button is depressed).
b. Align the raised portion on the battery pack (not
included) with the grooves on the bottom of the
tool, and then slide the battery pack onto the
tool as shown.
c. Ensure that the battery-release buttons on the
battery pack snap into place and the battery
pack is secured to the tool before beginning
operation.
NOTICE: When placing the battery pack on the
tool, be sure that the raised rib on the battery pack
aligns with the groove on the tool and the latches
snap into place properly. Improper attachment of
the battery pack can cause damage to internal
components.
To Detach Battery Pack
a. Make sure that the ON/OFF switch is in OFF
position (the O button is depressed).
b. Press the battery-release buttons to release the
battery pack.
c. Pull the battery pack to remove it from the tool.
WARNING
• Battery tools are always in operating condition.
Therefore, the ON/OFF switch should always be
in the OFF position when the tool is not in use or
when carrying the tool at your side.
1b
1a
A
8
OPERATING INSTRUCTIONS
2. Turning the Sander ON/OFF
a. To turn the sander ON, depress the I button on
the On/Off switch (A).
b. To turn the sander OFF, depress the O button.
3. Variable-Speed Dial
Adjust the sanding speed with the variable-speed
dial (B).
Turn the dial to any position between “1” for the
lowest speed and “6” for the highest speed.
WARNING
• Never change the speed while the tool is running.
Failure to obey this caution could make you lose
control of the tool and result in serious personal
injury.
4. Dust Bag
The sander is provided with a dust bag to collect
the dust created during operation.
To install the dust bag
a. Remove the battery from the tool.
b. Align the arrow
on the dust bag (F) with the
arrow on the dust-exhaust adaptor (E), then
push the bag forward and rotate it clockwise
until a “click” signals that the dust bag is in
LOCK position.
To detach the dust bag
a. Remove the battery from the tool.
b. Turn the dust bag (F) counterclockwise to the UNLOCK position, then pull the dust bag
backward to remove it from the dust-exhaust adaptor.
3
B
4
E F
2
ON
OFF
9
OPERATING INSTRUCTIONS
5. Attaching the Sander To a Vacuum
The sander can be connected to a 2-1/4 in. or
1-1/4 in. diameter vacuum hose to help keep the
work area clean.
To install a 2-1/4 in. vacuum hose
a. Remove the battery from the tool.
b. Turn the dust bag (F) counterclockwise to the
UNLOCK position and remove it from the sander.
c. Attach a 2-1/4 in. vacuum hose to the dust-
exhaust adaptor (E).
To install a 1-1/4 in. vacuum hose
a. Remove the battery and the dust bag (F) from
the dust-exhaust adaptor (E).
b. Pull the dust exhaust adaptor backward to
remove it from the dust connection (D).
c. Attach a 1-1/4 in. vacuum hose to the dust
connection.
6. Installing Sandpaper
Selecting the correct size grit and type sandpaper
is an extremely important step in achieving a high
quality sanded nish.
In general, coarse grit will remove the most material
and ner grit will produce the best nish in all sanding
operations. The condition of the surface to be sanded
will determine which grit and type will do the job. Start
with sandpaper on a test sample of the workpiece.
a. Remove the battery from the tool.
b. Align the holes in the sandpaper (G) with the
holes in the sanding pad (C), then press the
fuzzy side of the sandpaper against the pad as
tightly as possible.
5a
E
5b
D
6
C
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