Page 1
CAUTION: Read, understand and
follow all Safety Rules and Operating
Instructions in this manual before
using this product.
Operator’s Manual
3.0 Amp/5-in. Diameter
Random Orbital Sander
• WARRANTY
• SAFETY
• UNPACKING
• DESCRIPTION
• ASSEMBLY
• OPERATION
• MAINTENANCE
• ESPAÑOL
Double Insulated
Model No. 172.276750
3025736
Sears Brands Management Corporation,
Hoffman Estates, IL 60179
See the full line of Craftsman® products
at craftsman.com
27675
6/7/12
Page 2
3
SAFETY SYMBOLS
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 symbol warnings do not, by themselves, eliminate any danger.
The instructions and warnings they give are no substitutes for proper accident
prevention measures.
WARNING: Be sure to read and understand all safety instructions in this
manual, including all safety alert symbols such as “DANGER,” “WARNING,” and
“CAUTION” before using this random orbital sander. Failure to follow all instructions
listed in this manual may result in electric shock, fire and/or serious personal injury.
SYMBOL SIGNAL MEANING
SAFETY ALERT SYMBOL: Indicates DANGER, WARNING, OR CAUTION.
May be used in conjunction with other symbols or pictographs.
DANGER: Indicates a hazardous situation which, if not avoided, will result
in death or serious injury. This signal word is to be limited to the most extreme
situations. Always follow the safety precautions to reduce the risk of fire, electric
shock, and personal injury.
WARNING: Indicates a hazardous situation which, if not avoided, could result
in death or serious injury. Always follow the safety precautions to reduce the risk
of fire, electric shock, and personal injury.
CAUTION: Indicates a hazardous situation which, if not avoided, could
result in minor or moderate injury.
Damage Prevention and Information Messages
These inform the user of important information and/or instructions that could lead
to equipment or other property damage if they are not followed. Each message is
preceded by the word “NOTE,” as in the example below:
NOTE: Equipment and/or property damage may result if these instructions are not
followed.
WARNING: To ensure safety and reliability, all repairs
should be performed by a qualified service technician.
WARNING: The operation of any power tools 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 shield
and a full face shield when needed. We recommend a Wide
Vision Safety Mask for use over eyeglasses or standard safety glasses with side
shields. Always use eye protection which is marked to comply with ANSI Z87.1
shields.
Warranty……………………………...................................……………...Page 2
Safety Symbols……………………………...................................……... Page 3
Safety Instructions…………………………...................................……..Pages 4 - 10
Unpacking ………………………………..................................……........Page 10 - 11
Description............................................................................................Pages 11 - 12
Assembly...............................................................................................Pages 13 - 16
Operation..............................................................................................Pages 16 - 19
Maintenance.........................................................................................Page 20 - 21
Accessories...........................................................................................Page 21
Parts List...............................................................................................Page 22 - 23
TABLE OF CONTENTS
SAVE THESE INSTRUCTIONS!
READ ALL INSTRUCTIONS!
2
WARNING:
Some dust created by using power tools contains chemicals
known to the State of California to cause cancer and birth defects or other
reproductive harm.
!
CRAFTSMAN PROFESSIONAL ONE YEAR LIMITED WARRANTY
FOR ONE YEAR from the date of purchase, this product is warranted
against any defects in material or workmanship. With proof of purchase,
a defective product will be replaced free of charge.
For warranty coverage details to obtain free replacement, visit the web
site: www.craftsman.com
This warranty gives you specific legal rights, and you may also have other
rights which vary from state to state.
Sears Brands Management Corporation, Hoffman Estates, IL 60179
Page 3
SAFETY INSTRUCTIONS cont.
5
1. 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.
2. 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.
3. 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.
4. 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.
5. Maintain power tools. Check for misalignment or binding of moving parts, breakage
of parts and any other condition that may affect the power tools operation. If
damaged, have the power tool repaired before use. Many accidents are caused by
poorly maintained power tools.
6. Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp
cutting edges are less likely to bind and are easier to control.
7. Use the power tool, accessories and tool bits etc., in accordance with these
instructions and in the manner intended for the particular type of power tool,
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.
8. Use clamps or another practical way to secure and support the workpiece to a
stable platform.
9. Holding the work by hand or against your body leaves it unstable and may lead to
loss of control.
WARNING:
BE SURE to read and understand all instructions before
operating this power tool. Failure to follow all instructions listed below may
result in electric shock, fire and/or serious personal injury.
!
TOOL USE AND CARE SAFETY
WARNING:
Empty dust bag before storage to help prevent possible fire
hazard, especially when resin coating or linseed oil finishes have been sanded.
!
WARNING:
Do not permit fingers to touch
the terminals of plug when installing or removing
the plug from the outlet.
!
ELECTRICAL SAFETY
1. 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.
Cover of
Grounded
Outlet Box
SAFETY INSTRUCTIONS
4
WARNING: Read all safety warnings and instructions. Failure to follow
the warnings and instructions may result in electric shock, fire and/or
serious injury.
!
Save all warnings and instructions for future reference.
The term power tool in the warnings refers to your electric (corded)
power tool or battery-operated (cordless) power tool.
WORK AREA SAFETY
1. Keep work area clean and well lit. Cluttered or 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 children and bystanders away while operating a power tool. Distractions can
cause you to lose control.
4. Make your workshop childproof with padlocks and master switches. Lock
tools away when not in use.
5. MAKE SURE the work area has ample lighting so you can see the work and that
there are no obstructions that will interfere with safe operation BEFORE using your
power tool.
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 you are 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. 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.
3. Prevent unintentional starting. Ensure 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 finger on the switch or energizing power tools that have
the switch on invites accidents.
4. 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.
5. Do not overreach. Keep proper footing and balance at all times. This enables better
control of the power tool in unexpected situations.
6. 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.
7. If devices are provided for the connection of dust extraction and collection
facilities, ensure these are connected and properly used. Use of dust collection
can reduce dust-related hazards.
Page 4
SAFETY INSTRUCTIONS cont.
7
SERVICE SAFETY
1. If any part of this tool is missing or should break, bend, or fail in any way;
or should any electrical component fail to perform properly: SHUT OFF the
power switch and remove the tool’s plug from the power source and have the
missing, damaged or failed parts replaced BEFORE resuming operation.
2. Have your power tool serviced by a qualified repair person using only identical
replacement parts. This will ensure that the safety of the power tool is maintained.
3. If the replacement of the supply cord is necessary, this has to be done by the
manufacturer or his agent in order to avoid a safety hazard.
SAFETY RULES FOR POWER SANDERS
1. HOLD TOOL by insulated gripping surfaces when sanding where tool may contact
hidden wiring, such as walls, floors, or its own power cord. Contact with a “live” wire will
make exposed metals parts of the tool “live” and shock the operator.
2. INSPECT FOR AND REMOVE all nails, screws, staples or any embedded pieces
of metal from surface to be sanded. These protrusions could damage the sandpaper,
the cushion of the sander and cause loss of control. Following this rule will reduce the
risk of serious personal injury and damage to the sander.
3. NEVER use this or any power sander for wet sanding or liquid polishing.
Failure to follow this rule will increase the risk of electric shock.
4. ALWAYS clamp the workpiece securely so it will not move under the sander.
Unsecured work could be thrown towards the operator, causing injury.
5. DO NOT force the sander. The weight of the sander supplies adequate
pressure. Let the sander and the grit on the sandpaper do the work.
6. DO NOT sand in any one place for too long. The sander’s rapid action may
remove too much material and make the surface uneven.
SAFETY SYMBOLS FOR YOUR TOOL
The label on your tool may include the following symbols.
V.......................................................................Volts
A......................................................................Amps
Hz....................................................................Hertz
W.....................................................................Watts
min.................................................................. Minutes
....................................................................Alternating current
..................................................................Direct current
n
o
....................................................................No-load speed
....................................................................Class II construction, Double Insulated
RPM………………………............................. . .Revolutions per minute
SPM…...........................…… ……………….....Strokes per minute
OPM………………..........................………..... Orbits per minute
....................................................................Indicates danger, warning or caution.
It means attention! Your safety is involved.
The label on your tool may include the following symbols.
!
CAUTION:
Keep the extension cord clear of the working area.
Position the cord so that it will not get caught on lumber, tools or other
obstructions while you are working with a power tool.
SAFETY INSTRUCTIONS cont.
6
WARNING:
Check extension cords before each use. If damaged replace
immediately. Never use tool with a damaged cord since touching the damaged
area could cause electrical shock, resulting in serious injury.
!
USE PROPER EXTENSION CORD. Make sure your extension cord is in good
condition. When using an extension cord, be sure to use one heavy enough to
carry the current your product will draw. An undersized cord will cause a drop in
line voltage resulting in loss of power and overheating. Table 1 shows the correct
size to use depending on cord length and nameplate ampere rating. If in doubt,
use the next heavier gage. The smaller the gage number, the heavier the cord.
Table 1: Minimum Gage for Cord
!
WARNING:
Do not permit fingers to touch the terminals of plug when
installing or removing the plug from the outlet.
!
WARNING:
Double insulation DOES NOT take the place of normal safety
precautions when operating this tool.
!
ELECTRICAL SAFETY
2. Power tool plugs must match the outlet. Never modify the plug in any way. Do not
use any adapter plugs with grounded power tools. Unmodified plugs and matching
outlets will reduce risk of electric shock.
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 cord. Never use the cord for carrying, pulling or unplugging the
power tool. Keep cord away from heat, oil, sharp edges or moving parts. Damaged
or entangled cords increase the risk of electric shock.
6. When operating a power tool outdoors, use an extension cord suitable for outdoor
use marked “W-A” or “W”. Use of a cord suitable for outdoor use reduces the risk of
electric shock.
7. If operating a power tool in a damp location is unavoidable, use a Ground Fault
Circuit Interupter (GFCI) protected supply. Use of a GFCI reduces the risk of
electric shock.
Ampere
Rating Volts Total cord length (in feet)
More Than
0
6
10
12
6
10
12
16
18
18
16
14
16
16
16
12
Not recommended
16
14
14
14
12
12
Not More
Than
120V 25 50 100 150
AWG
Page 5
9
WARNING:
BE SURE to read and understand all instructions.
Failure to follow all instructions listed below may result in electric shock, fire
and/or serious personal injury.
!
SAFETY INSTRUCTIONS cont.
1. Harmful/toxic dusts will arise from sanding e.g. lead painted surfaces, woods and
metals. Contact with or inhalation of these dusts can endanger the health of operator
and bystanders. Always use eye glasses and dust mask.
2. Hearing protection should be worn when using the sander.
3. Always wear safety glasses or eye shields when using the sander. Everyday
eyeglasses have only impact-resistant lenses; they are not safety glasses.
Following this rule will reduce the risk of serious personal injury.
4. Remove the plug from the socket before carrying out any adjustment, servicing or
maintenance.
5. Fully unwind cable drum extensions to avoid potential overheating.
6. When an extension cable is required you must ensure it has the correct ampere rating
for your power tool and is in a safe electrical condition.
7. Ensure your mains supply voltage is same as indicated on the rating plate.
8. Your tool is double insulated for additional protection against a possible electrical
insulation failure within the tool.
9. Always check walls, floors and ceilings to avoid hidden power cables and pipes.
ADDITIONAL RULES FOR SAFE OPERATION
NOTE: Only those dust masks suitable for working with lead paint dust and fumes should
be used. Ordinary painting masks do not offer this protection. See your local hardware
dealer for the proper (NIOSH approved) mask.
• NO EATING, DRINKING OR SMOKING should be done in the work area to
prevent ingesting contaminated paint particles. Workers should wash and
clean up BEFORE eating, drinking or smoking. Articles of food, drink, or
smoking should NOT be left in the work area where contaminated dust would
settle on them.
• Paint should be removed in such a manner as to minimize the amount of dust
generated.
• Areas where paint removal is occurring should be sealed with plastic sheeting
of 4 mils thickness.
• Sanding should be done in a manner to reduce tracking of paint dust outside
the work area.
• All surfaces in the work area should be vacuumed and thoroughly cleaned daily
for the duration of the sanding project. Vacuum filter bags should be changed
frequently.
• Plastic drop cloths should be gathered up and disposed of along with any dust
chips or other removal debris. They should be placed in sealed refuse receptacles
and disposed of through regular trash pick-up procedures. During clean up,
children and pregnant women should be KEPT AWAY from the immediate work
area.
• All toys, washable furniture and utensils used by children should be washed
thoroughly before being used again.
8
SAFETY INSTRUCTIONS cont.
• Lead from lead-based paints.
• Crystalline silica from bricks and 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 those dust masks that
are specially designed to filter 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,
eyes, or lay on the skin may promote absorption of harmful chemicals.
WARNING:
Some dust created by using power tools contains chemicals
known to the State of California to cause cancer and birth defects or other
reproductive harm. Some examples of these chemicals are:
!
WARNING:
Use of this tool can generate and/or disburse dust, which may
cause serious and permanent respiratory or other injury. Always use
NIOSH/OSHA approved respiratory protection appropriate for the dust exposure.
Direct particles away from face and body.
!
WARNING:
Collected sanding dust from sanding surface coatings
(polyurethane, linseed oil, etc.) can self-ignite in sander dust bag or elsewhere
and cause fire. To reduce risk, empty dust bag frequently and strictly follow
sander manual and coating manufacturer’s instructions.
!
CAUTION:
When working on metal surfaces, DO NOT use the dust bag
or a vacuum cleaner because sparks are generated. Wear safety glasses and a
dust mask. Due to the danger of fire, do not use your sander to sand magnesium
surfaces. Do not use for wet sanding.
!
SANDING LEAD BASED PAINT is NOT RECOMMENDED due to the difficulty of
controlling the contaminated dust. The greatest danger of lead poisoning is to children
and pregnant women.
SANDING PAINTS
Since it is difficult to identify whether or not a paint contains lead without a chemical
analysis, we recommend the following precautions when sanding any paint:
• NO children or pregnant women should enter the work area where the
paint sanding is being done until all clean up is completed.
• A dust mask or respirator should be worn by all persons entering the work
area. The filter should be replaced daily, or whenever (if) the wearer has
difficulty breathing.
Page 6
11
DESCRIPTION
Your Professional 5” Random Orbit Sander has a precision-built electric motor and it should
be connected to a 120-volt, 60-Hz AC ONLY power supply (normal household current).
DO NOT operate on direct current (DC). The large voltage drop will cause a loss of power
and the motor will overheat. If the sander does not operate when plugged into correct
120-volt, 60-Hz AC ONLY outlet, check the power supply. This sander has a 8-ft, 2-wire
power cord (no adapter needed).
KNOW YOUR RANDOM ORBIT SANDER (Fig. 2)
NOTE: Before attempting to use your sander, familiarize yourself with all of the
operating features and safety requirements.
This Random Orbit Sander has the following features:
1. Powerful 3.0 amp motor provides the torque, power and durability for a variety
of continuous sanding applications.
2. Variable speed 5,000 to 12,000 OPM orbits per minute (no-load speed) is controlled
by variable speed dial. Match with the correct speed and sandpaper grit to the surface
being sanded for either fast material removal or a fine, smooth finish.
3. Random orbital action with 1/8-in. orbit diameter helps to provide a swirl free finish.
4. Ergonomically designed Palm Grip Handle with Molded-in Comfort Grip
for maximum balance, control, gripping comfort and reduced operator fatigue.
5. Precision-tuned counterbalanced system reduces vibration for smooth operation
and less operator fatigue.
UNPACKING cont.
PARTS LIST (Fig. 1)
4. Operator’s Manual
1. Sander
2. Dust Bag
Assembly
3. Vac Adapter
with dual
dust ports
10
1. Remove the sander from the carton and inspect it carefully to make sure
that no breakage or damage has occurred during shipping.
2. Do not discard any of the packing materials until all parts are accounted for.
3. Included with your sander is a dust bag assembly, with vac adapter.
4. If any of the parts are damaged or missing (refer to PARTS LIST below), return the
sander to your nearest Sears store or Craftsman outlet to have the sander replaced.
WARNING:
This power tool should NEVER be connected to the power
source when you are assembling parts, making adjustments, installing or
removing sandpaper, cleaning or when it is not in use. Disconnecting the sander
will prevent accidental starting, which could cause serious personal injury.
!
UNPACKING
WARNING:
If any parts are missing, DO NOT operate this power tool until
the missing parts are replaced. Failure to do so could result in possible serious
personal injury.
!
10. After long working periods external metal parts and accessories could be hot.
11. If possible, ensure the work-piece is firmly clamped to prevent movement.
12. Your sander is a hand held tool, do not clamp your sander.
13. Before sanding, check the area is free of nails, screws, etc.
14. Never stop the sander by applying a force to the base plate.
15. Only use paper in good condition. Do not use torn or worn paper.
16. Do not sand material containing asbestos due to a health risk.
17. Do not sand lead based paint due to the risk of lead poisoning.
18. Do not eat or drink in the working area of the sander.
19. Do not allow people to enter the working area without wearing a dust mask.
20. Where possible, seal off the working area to contain the dust for later removal.
21. Your tool is designed for dry sanding only, not wet sanding.
22. Your tool is designed for general purpose light polishing of wood and metals.
23. Do not sand magnesium material due to the risk of fire.
24. SAVE THESE INSTRUCTIONS. Refer to them frequently and use them to instruct
others who may use this tool. If someone borrows this tool, make sure they have
these instructions also.
ADDITIONAL RULES FOR SAFE OPERATION cont.
SAFETY INSTRUCTIONS cont.
Page 7
13
Fig 3
ASSEMBLY
ALWAYS inspect the sandpaper before installing. DO NOT use if broken or defective.
1. Unplug the sander.
INSTALLING THE SANDPAPER (See Figs. 3)
WARNING: Your sander should NEVER be connected to the power source
when you are assembling parts, making adjustments, installing or removing
sandpaper, cleaning or when it is not in use. Disconnecting the sander will prevent
accidental starting, that could cause serious personal injury.
!
WARNING:
Failure to unplug the sander could result in accidental
starting causing possible serious personal injury.
!
NOTE: Remove dust bag assembly when installing sandpaper. ALWAYS remember
to reattach the dust bag assembly before beginning sanding operation
(see page 15, Fig. 6).
NOTE: Holes in sanding disc must line up with holes in the backing pad in order for
the dust collection feature of the sander to function properly.
NOTE: For best adhesion, we recommend that you clean the backing pad and the
sanding disc backing occasionally by brushing them lightly with a small brush.
5-in. Hook and Loop Sanding
Disc with Pre-Punched Holes
2. Align the holes in the sanding disc with the holes in the hook and loop backing pad.
3. Press the sanding disc against the backing pad as firmly as possible.
Sander
Backing Pad
12
6. On/Off rocker switch is conveniently located for easy control. Sealed to keep out
dust for long life.
7. Hook and Loop Backing Pad for easy attachment of hook and loop type sanding discs
with pre-punched holes.
8. High impact-resistant housing helps protect tool from damage and reduces weight.
9. Built-in Dust Collection System Dust bag assembly with dual dust ports collects dust
from work surface through holes in backing pad and sanding disc. Use either the dust
bag, or attach a 1
1
/4 or 21/2-inch vac hose and wet / dry vac (sold separately) for
dust collection. Helps keep work surface area clean and extends life of sanding disc.
10. Permanently lubricated 100% ball bearings for smooth operation and long life.
DESCRIPTION cont.
This Random Orbit Sander has the following features cont.:
Fig 2
PRODUCT SPECIFICATIONS
No-load Speed
Rating
Input
Orbit Diameter
Sanding Disc Size
Paper Type
5000-12000 OPM (orbits per minute) variable speed
120 Volts, 60 Hz AC
3.0 Amps
1/8-in.
5-in. Diameter
Hook and Loop Discs with Pre-Punched Holes
Comfort Grip Handle
Dust Bag
Assembly
5-in.
Hook and Loop Backing Pad
On/Off
Rocker Switch
Variable Speed Dial
Vac Adapter with
Dual Dust Ports
Page 8
15
ASSEMBLY cont.
WARNING:
Failure to unplug the sander could result in accidental starting
causing possible serious personal injury.
!
Fig. 5
ATTACHING VAC HOSE TO THE DUST COLLECTION SYSTEM (See Fig. 5)
When sanding for extended periods of time, you can easily attach your sander
to a vac hose and wet/dry vac (sold separately).
1. Unplug the sander.
2. Remove dust bag assembly from the vac adapter
(see page 14, Fig. 4a and 4b).
3. Connect vac adapter with dual dust ports to dust exhaust hole
of sander (see Fig. 5).
4. Attach either a 1
1
/4 or 21/2-in vac hose
onto the vac adapter’s dual dust ports
( see Fig. 5a and 5b).
5. Connect hose to wet / dry vac. Turn
vac on while operating sander.
NOTE: For more efficient operation, we recommend that you empty the dust
bag when it is no more than half full. This will allow the air to flow through the
bag better. ALWAYS empty and clean the dust bag thoroughly when you’ve
finished sanding and before you store the sander.
WARNING:
Empty dust bag before storage to help prevent possible fire
hazard, especially when resin coating or linseed oil finishes have been sanded.
!
Fig. 5b
Fig. 5a
Connect
hose adapter
to exhaust hole of sander
Connect
1
1
/4-in. hose
Connect
2
1
/2-in. hose
14
ASSEMBLY cont.
WARNING:
Failure to unplug the sander could result in accidental starting
causing possible serious personal injury.
!
NOTE: Empty dust bag frequently when sanding so dust collection system
works properly.
TO REMOVE AND EMPTY DUST BAG (See Fig. 4 and 4a)
1. Unplug the sander.
2. Locate (2) tab connectors on either side of vac adapter/dust bag assembly and squeeze.
Pull assembly straight back and off of dust exhaust hole (see Fig. 4).
3. Turn dust bag assembly counterclockwise (embossed arrows show unlock and lock
rotation) and remove bag from vac adapter (see Fig. 4a, 4b).
Fig. 4
Fig. 4a Fig. 4b
Dust Bag
Assembly
Vac Adapter
with Dual Dust
Ports
Dust
Exhaust Hole
4. Empty bag by shaking aggressively until completely empty. Wipe dust and debris from
the vac adapter.
5. Reattach the bag assembly onto the vac adapter, and reattach vac adapter and
dust bag assembly onto the sander.
Dust Bag
Assembly
Vac Adapter
with Dual
Dust Ports
Dust Bag
Assembly
Vac Adapter
with Dual Dust
Ports
Clockwise
for ON
Counterclockwise
for OFF
Page 9
17
OPERATION
cont.
VARIABLE SPEED SWITCH (see Fig. 7)
The variable speed dial allows matching the correct
speeds to sandpaper grits and various surfaces and
materials being sanded for either fast material
removal or a fine smooth finish.
Rotate the dial from 1 to 6, with 1 being the
lowest speed and 6 the highest speed.
APPLICATIONS
CAUTIO N: When gripping the sander during use, ALWAYS be careful not
to cover the air vents with your hands (see Fig. 8).
!
WARN ING:
ALWAYS clamp the workpiece. An unsecured workpiece could
be thrown towards the operator, causing serious injury.
!
WARN ING: Due to the danger of fire, DO NOT use your sander to sand
magnesium surfaces. DO NOT use for wet sanding.
!
Only use your sander for the applications listed below.
• Sanding wood surfaces with various grits of sandpaper.
• Removing rust from steel surfaces with special sandpaper.
USING YOUR SANDER (see Fig. 8)
1. ALWAYS clamp and secure the workpiece to prevent it from moving under sander.
2. Place sander on workpiece so that all of sanding disc surface is in contact with workpiece.
3. Start the sander and move it slowly over workpiece, making successive passes in parallel
lines, circles, or crosswise movements.
4. Upon completion of sanding operation , turn sander off and wait until sanding disc comes
to a complete stop before removing from workpiece.
5. Extended periods of sanding may tend to overheat the motor. If this occurs, turn sander
off and wait until sanding disc comes to a complete stop, then remove it from workpiece.
Remove sanding disc, then turn sander on and run it free without a load (off the workpiece)
to cool the motor.
Fig. 7
Fig. 8
Air Vents
16
OPERATION
WARNING: IF ANY PARTS ARE MISSING, DO NOT OPERATE YOUR
SANDER UNTIL THE MISSING PARTS ARE REPLACED. FAILURE TO FOLLOW
THIS RULE COULD RESULT IN SERIOUS PERSONAL INJURY.
!
WARNING: DO NOT let familiarity with your sander make you careless.
Remember that a careless fraction of a second is sufficient to cause severe injury.
!
Before attempting to use any tool, be sure to familiarize yourself with all the
operating features and safety instructions.
WARNING:
Collected sanding dust from sanding surface coatings
(polyurethane, linseed oil, etc.) can self-ignite in sander dust bag or elsewhere
and cause fire. To reduce risk, empty dust bag frequently and strictly follow
sander manual and coating manufacturer’s instructions.
!
WARNING:
When working on metal surfaces, DO NOT use the dust bag
or a vacuum cleaner because sparks are generated. Wear safety glasses and a
dust mask. Due to the danger of fire, do not use your sander to sand magnesium
surfaces. Do not use for wet sanding.
!
ATTACHING VAC HOSE TO THE DUST COLLECTION SYSTEM cont.
ASSEMBLY cont.
Fig. 6
WARNING:
When sander is not connected to vacuum, always install
dust bag back on sander. Failure to do so could cause sanding dust or foreign
objects to be thrown into the face or eyes which could result in possible
serious injury.
!
NOTE: A standard 11/4-in. vac hose connection fits inside the smaller diameter
hole inside the dust exhaust, while a standard 2
1
/2-in. vac hose connection
fits inside the larger hole of the dust exhaust.
ON/OFF ROCKER SWITCH (see Fig. 6)
This switch is sealed to help keep out dust
for a longer life and is conveniently located
near the front of the palm grip handle.
Start the sander by pushing in the part of the
switch with the . Let the motor build to its
maximum speed before starting sanding
operation. To turn sander off, push side of
switch with the O .
Page 10
19
FLUSH SANDING (See Fig. 10)
Flush sanding can be performed with the front edge of this sander. Upon completion
of sanding operation, turn sander off and wait until sanding disc comes to a complete
stop before removing from workpiece.
WARNING:Empty dust bag before storage to help prevent possible fire
hazard, especially when resin coating or linseed oil finishes have been sanded.
!
NOTE: Empty dust bag frequently when sanding so dust collection system
works properly.
OPERATION cont.
Fig. 10
3
4
ORBITAL MOTION (see Fig. 9)
As shown in Figure 9, the orbit of the sander is 1/8-in. in diameter so the sandpaper
moves in tiny circles at very high speed, allowing the sander to move easily.
This orbital action duplicates a “hand sanding” motion for more aggressive sanding as you
push the sander forward. This powerful orbital action is ideal for heavy-duty sanding
applications, such as:
1. Removing old finishes
2. Smoothing rough wood
3. Sanding stock down
to required dimensions
4. Finishing surfaces
that are to be painted.
Fig. 9
1/8-in Orbital Diameter
18
SELECTING THE RIGHT SANDPAPER
1. Aluminum oxide, silicon carbide and other synthetic abrasives are best for power sanding.
2. Natural abrasives such as flint and garnet are too soft for economical use in power sanding.
3. Coarse grit will remove the most material and finer grit will give you the best finish in all
sanding operations.
4. The condition of the surface to be sanded will determine which grit will do the job.
5. If the surface is rough:
• Start with a coarse grit and sand until the surface is uniform.
• Then use medium to remove any scratches left by the coarse grit.
• Then use a finer grit for finishing the surface.
Selecting the correct grit and type of sandpaper is an extremely important decision that
will allow you to achieve the best quality sanding finish.
WARNING:DO NOT wear loose clothing or jewelry when operating sander.
They could get caught in moving parts, causing serious injury. Keep head away from
sander and sanding area. Hair could be drawn into sander, causing serious injury.
!
NOTE: DO NOT use the sander without sandpaper. This will damage the cushion.
NOTE: ALWAYS continue sanding with each grit until the surface is uniform.
OPERATION cont.
OPERATION cont.
SANDING TIPS
1. DO NOT force the sander. The weight of the sander supplies adequate pressure on
the workpiece. Let the sander and the sandpaper’s grit do the work.
• Applying additional pressure will only slow down the motor, wear the sandpaper
out faster and reduce the sander’s orbital speed.
• Excessive pressure will overload the motor and cause possible damage to the
sander from the motor overheating.
• Excessive pressure will also result in a poor quality finish.
2. Any existing finish or resin on wood may soften from the heat of the friction and cause
the sandpaper to load-up faster.
3. Inspect sandpaper frequently and change paper when grit is worn and not able to
perform properly.
4. DO NOT sand in one spot for too long a time because the sander’s rapid action may
remove too much material and make the surface uneven.
CAUTIO N:
To ensure proper brake operation after extended use, periodically
check its operation by removing the sanding disc and running the sander without
load (off the workpiece). The backing pad should not take longer than 6 seconds
to stop. If it takes longer than 6 seconds to stop, then brake should be replaced.
!
NOTE: The brake is available and can be purchased at the nearest Sears Parts
and Repair Center.
USING YOUR SANDER cont.
Page 11
21
MAINTENANCE cont.
!
WARNING:
Failure to unplug the sander could result in accidental
starting causing possible serious personal injury.
BRUSH (not supplied) REPLACEMENT (see Fig. 11, 11a, 11b and 11c)
1. Unplug the sander.
Fig. 11
Fig. 11a
Fig. 11b
Fig. 11c
2. Remove (3) screws from top cover
of sander and remove top cover (see Fig. 11).
3. Locate the (2) Carbon Brush / Brush Holder
Assemblies (see Fig. 11a). They are connected
to red wire lead terminals and are in position
on each side of the armature.
4. Carefully lift these (2) assemblies (see Fig. 11a and 11b)
out of their positions (NOTE: Remember how
they are positioned so that you can put them
back in position correctly.)
5. Check the ends of the carbon brushes (see Fig. 11b)
for wear. If either brush has less than 1/4-in. length
of carbon remaining, replace both. DO NOT
REPLACE ONE SIDE WITHOUT REPLACING
THE OTHER.
6. To replace assemblies, disconnect
the red wire lead terminals from the
assemblies (see Fig. 11c), attach
new assemblies to the lead terminals
and place the assemblies back into
their original positions next to the
armature. Make sure the curvature
of the end of the brushes matches
the curvature of the armature and
that the brushes move freely in
brush holder assemblies.
7. Reassemble the top cap with the
(3) screws and do not overtighten.
Carbon Brush/
Brush Holder
Assemblies
Disconnect
Red wire
lead
terminals
Armature
20
Periodic maintenance allows for long life and trouble-free operation. A cleaning and
maintenance schedule should be maintained. As a common preventive maintenance
practice, follow these recommended steps:
1. When work has been completed, clean the tool to allow smooth functioning of the tool
over time. Clean the tool with compressed air.
2. Use clean damp cloths to wipe the tool. Use a brush to brush off and clean the sander’s
Backing Pad.
3. Keep the motor air openings free from oil, grease and sawdust or woodchips, and
store tool in a dry place.
!
WARNING:
DO NOT at any time let brake fluids, gasoline, petroleum based products, penetrating oils, etc. come in contact with plastic parts.
Chemicals can damage, weaken or destroy plastic, which may result in serious
personal injury.
!
WARNING:
For your safety, ALWAYS turn off switch and unplug sander
from the power source before performing any maintenance or cleaning.
ROUTINE MAINTENANCE
LUBRICATION
Your Craftsman
®
Professional Orbital Sander has been properly lubricated and is ready to
use. No further lubrication is needed under normal operating conditions. All bearings in the
sander are lubricated for the life of the tool.
MAINTENANCE
It has been found that electric tools are subject to accelerated wear and possible
premature failure when they are used to work on fiber glass boats and sports cars,
wallboard, spackling compounds or plaster. The chips and grindings from these materials
are highly abrasive to electrical tool parts, such as bearings, brushes, commutators, etc.
Consequently, it is not recommended that this tool be used for extended work on any
fiberglass material, wallboard, spackling compound or plaster. During any use on these
materials, it is extremely important that the tool is cleaned frequently by blowing with
an air jet.
!
WARNING:
To ensure safety and reliability, repairs, maintenance and
adjustments MUST be performed by a qualified service technician.
!
WARNING:
For your safety, ALWAYS turn off switch and unplug sander
from the power source before performing any maintenance or cleaning.
!
WARNING:
Always wear safety goggles or safety glasses with side shields
during power tool operations, or when blowing dust. If operation is dusty, also
wear a dust mask.
Page 12
23
PARTS LIST
The model number will be found on the nameplate
of the Random Orbital Sander. Always mention
the model number when ordering parts for your tool.
To order parts, call 1-800-469-4663
5-in. Dia. Random Orbital Sander
MODEL NUMBER 172.27675
23
PARTS LIST
5-in. Dia. Random Orbital Sander
MODEL NUMBER 172.276750
22
ACCESSORIES
!
WARNING:
The use of attachments or accessories that are not
recommended for this tool might be dangerous and could result in serious injury.
Sears and other Craftsman® outlets offer a selection of Craftsman Professional Random
Orbit Sander accessories designed for all your sanding applications.
5-inch, 8 Hole, Hook and Loop Sanding Discs come in very fine, fine,
medium and coarse grit.
Visit your local Sears store or other Craftsman outlets or shop sears.com/craftsman for
all of the accessories for your random orbital sander.
Page 13
24
PARTS LIST cont.
200T0040159000A-00
200T0030119000A-00
2PES04Q7000000A-00
2PGA17T4001000A-00
2PES04Q1010000A-00
200T0280179000A-00
2PES04Q0004000A-00
2PES04Q0011000A-00
2PES04Q2000000A-00
200T0070003000A-00
200W8000006000A-00
200T0020005000A-00
20TA9520072000A-00
2PES04Q0007000A-00
2PES04Q4000000A-00
2PES03A1102000A-00
200W8000047000A-00
2PES04Q4001000A-00
200W3200029000A-00
2PES02A0011000A-00
200W3000059000A-00
2PES04Q0006000A-00
1234567
8
101
9
101112
13
102
14151617181920
Brush holder ssembly
Carbon brush
Power cord
Speed adjustment knob
Variable speed board
Inner wire
Left wind baffle
Brand label
Rotor
Bearing sleeve
Ball bearing 607-2z-p63
Dust proof ring
Armature
Fan
Bracket seat
Bracket
Ball bearing 6202
Bracket
Screw washer assembly M4x20
Washer
Screw M4x16
Brake ring
221112111111111111311
1
Item No. Parts No. Part Description Qty.
212223
24
103
252627282930313233
34
104
3536373839
40
Base plate
Screw ST4.2x16
Top cover
Screw ST4.2x13
Stator asm
Bracket
Stator
Screw ST4.2x55
Switch cover
Switch
Screw ST3.5x8
Press plate
Ball bearing 6000
Housing
Cord clamp
Dust collector bag
Dust port
Dust bag body
Dust bag
Rated label
Right wind baffle
O ring 3x34
2PES03A2000000A-00
200W4000035000A-00
2PES04Q0002000A-00
200W4000032000A-00
2PES04Q3000000A-00
2PES04Q3001000A-00
20TA9500080000A-00
200W4000052000A-00
2PES02A0002000A-00
200W0020265000A-00
200W4000005000A-00
2PES04Q6001000A-00
200W8500003000A-00
2PES04Q0003000A-00
200T0200005000A-00
2PES04Q5000000A-00
2PES04Q5001000A-00
2PES04Q5102000A-00
2PES04Q5100000A-00
2PES04Q0001000A-00
2PES04Q0005000A-00
200T0080024000A-00
171611121121111111111
1
Item No. Parts No. Part Description Qty.
5-in. Dia. Random Orbital Sander
MODEL NUMBER 172.276750
The model number will be found on the nameplate
of the Random Orbital Sander. Always mention
the model number when ordering parts for your tool.
To order parts, call 1-800-469-4663
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