using tools or equipment, basic safety precautions should always be followed
to reduce the risk of personal injury. Improper operation, maintenance or
modification of tools or equipment could result in serious injury and property
damage. There are certain applications for which tools and equipment
are designed. Porter-Cable strongly recommends that this product NOT
be modified and/or used for any application other than for which it was
designed.
instructions before using any tool or equipment. When
If you have any questions relative to its application DO NOT use the product
until you have written Porter-Cable and we have advised you.
Online contact form at www.porter-cable.com
Postal Mail: Technical Service Manager
Porter-Cable
4825 Highway 45 North
Jackson, TN 38305
Information regarding the safe and proper operation of this tool is available from
the following sources:
Power Tool Institute
1300 Sumner Avenue, Cleveland, OH 44115-2851
www.powertoolinstitute.org
National Safety Council
1121 Spring Lake Drive, Itasca, IL 60143-3201
American National Standards Institute, 25 West 43rd Street, 4 floor, New
York, NY 10036 www.ansi.org ANSI 01.1Safety Requirements for
Woodworking Machines, and the U.S. Department of Labor regulations
www.osha.gov
SAVE THESE INSTRUCTIONS!
2
Page 3
SAFETY GUIDELINES - DEFINITIONS
It is important for you to read and understand this manual. The
information it contains relates to protecting YOUR SAFETY and
PREVENTING PROBLEMS. The symbols below are used to help
you recognize this information.
indicates an imminently hazardous situation which, if not
avoided, will result in death or serious injury.
indicates a potentially hazardous situation which, if not
avoided,could result in death or serious injury.
indicates a potentially haz ardous situation which, if not
avoided,may result in minor or mod erate injury.
used without the safety alert symbol indicates potentially
hazardous situation which, if not avoided, may result in
property damage.
CALIFORNIA PROPOSITION 65
Some dust created by power sanding, sawing, grinding,
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 and 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, al ways wear
NIOSH/OSHA approved, properly fit ting face mask or res pirator when us ing
such tools.
drilling, and other construction activities contains chemicals
3
Page 4
GENERAL SAFETY RULES
Read all instructions. Failure to follow all
shock, fire and/or serious injury. The term "power tool" in all
of the warnings listed below refers to your mains-operated
(corded) power tool or battery-operated (cordless) power tool.
SAVE THESE INSTRUCTIONS
1) Work area safety
a)Keep work area clean and well lit. Cluttered or dark areas invite
accidents.
b)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.
c)Keep children and bystanders away while operating a power tool.
Distractions can cause you to lose control.
2) Electrical safety
a)Power tool plugs must match the outlet. Never modify the plug in
any way. Do not use any adapter plugs with earthed (grounded)
power tools. Unmodified plugs and matching outlets will reduce risk of
electric shock.
b)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.
c)Do not expose power tools to rain or wet conditions. Water entering a
power tool will increase the risk of electric shock.
d)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.
e)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.
3) Personal safety
a)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.
such as dust mask, non-skid safety shoes, hard hat, or hearing protection
used for appropriate conditions will reduce personal injuries.
c)Avoid accidental starting. Ensure the switch is in the off-position
before plugging in. Carrying power tools with your finger on the switch
or plugging in power tools that have the switch on invites accidents.
d)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.
instructions listed below may result in electric
4
Page 5
GENERAL SAFETY RULES
e)Do not overreach. Keep proper footing and balance at all times. This
enables better control of the power tool in unexpected situations.
f)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.
g)If devices are provided for the connection of dust extraction and
collection facilities, ensure these are connected and properly used.
Use of these devices can reduce dust-related hazards.
4) Power tool use and care
a)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.
b)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.
c)Disconnect the plug from the power source before making any
adjustments, changing accessories, or storing power tools. Such
preventive safety measures reduce the risk of starting the power tool
accidentally.
d)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.
e)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.
f)Keep cutting tools sharp and clean. Properly maintained cutting tools
with sharp cutting edges are less likely to bind and are easier to control.
g)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.
5) Service
a)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.
continued
5
Page 6
ADDITIONAL SPECIFIC SAFETY RULES
1. Hold power 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.
2. Keep hands and body parts away from rotating spindle. Contact with
rotating spindle can cause severe cuts and abrasions.
3. Use proper safety equipment. Wear safety goggles to protect
your eyes, wear hearing protection to protect your ears, and wear a
protective mask to minimize breathing in the fine dust created while
sanding.
4. Sanding of lead-based paint is not recommended. Lead-based paint
should only be removed by a professional.
5. Always keep the base of the sander in contact with a secure
workpiece to prevent loss of control.
6. Do not operate Oscillating Sander without all guards and covers
securely in place.
7.Wear eye and hearing protection. Always use safety glasses. Everyday
eyeglasses are NOT safety glasses. USE CERTIFIED SAFETY EQUIPMENT.
Eye protection equipment should comply with ANSI Z87.1 standards.
Hearing equipment should comply with ANSI S3.19 standards.
8.
other airborne particles, including wood dust, crystalline silica dust
and asbestos dust. Direct particles away from face and body. Always
operate tool in well ventilated area and provide for proper dust removal.
Use dust collection system wherever possible. Exposure to the dust may
cause serious and permanent respiratory or other injury, including silicosis
(a serious lung disease), cancer, and death. Avoid breathing the dust, and
avoid prolonged contact with dust. Allowing dust to get into your mouth
or eyes, or lay on your skin may promote absorption of harmful material.
Always use properly fitting NIOSH/OSHA approved respiratory protection
appropriate for the dust exposure, and wash exposed areas with soap and
water.
Use of this tool can generate and disburse dust or
SAVE THESE INSTRUCTIONS!
6
Page 7
SYMBOL DEFINITION
V ........................................ volts
A ........................................ amperes
no-load speed
Revolutions or reciprocations per minute
the time/current characteristic, as given in IEC 60127
.................................... class II tool
IPXX ................................... IP symbol
SAVE THESE INSTRUCTIONS!
7
Page 8
ADDITIONAL SAFETY RULES FOR PAINT REMOVALL
Extreme care should be taken when removing paint. The
peelings, residue, and vapors of paint may contain lead, which
is poisonous. Exposure to even low levels of lead can cause
irreversible brain and nervous system damage. Young and
unborn children are particularly vulnerable.
Before beginning any paint removal process you should determine whether the
paint you are removing contains lead. This can be done by your local health
department or by a professional who uses a paint analyzer to check for lead.
Lead-based paint should only be removed by a professional.
Persons removing paint should follow these guidelines:
1. Keep the work area well ventilated. Open the windows and put an exhaust
fan in one of them. Be sure the fan is moving air from inside to outside.
2. Remove or cover any carpets, rugs, furniture, clothing, cooking
utensils, and air ducts. Such preventive safety measures reduce the risk of
exposure.
3. Place drop cloths in the work area to catch any paint chips or peelings.
Wear protective clothing such as extra work shirts, overalls and hats.
Such preventive safety measures reduce the risk of exposure.
4. Work in one room at a time. Furnishings should be removed or placed in
the center of the room and covered. Work areas should be sealed off from
the rest of the dwelling by sealing doorways with drop cloths.
5. Children, pregnant, or potentially pregnant women and nursing mothers
should not be present in the work area until the work is done and all
cleanup is complete. Such preventive safety measures reduce the risk of
injury.
6. Wear a dust respirator or a dual filter (dust and fume) respirator mask
which has been approved by the Occupational Safety and Health
Administration (OSHA), the National Institute of Safety and Health
(NIOSH), or the United States Bureau of Mines. These masks and
replaceable filters are readily available at major hardware stores. Be sure the
mask fits. Beards and facial hair may keep the masks from sealing properly.
Change filters often. DISPOSABLE PAPER MASKS ARE NOT ADEQUATE.
7. Keep food and drink out of the work area. Wash hands, arms, and face
and rinse mouth before eating or drinking. Do not smoke or chew gum or
tobacco in the work area.
8. Clean up all removed paint and dust by wet mopping the floors. Use
a wet cloth to clean all walls, sills and any other surfaces where paint or
dust is clinging. DO NOT SWEEP, DRY DUST OR VACUUM. Use a high
phosphate detergent or trisodium (TSP) to wash and mop areas.
9. At the end of each work session, put the paint chips and debris in a
double plastic bag, close it with tape or twist ties and dispose properly.
Such preventive safety measures reduce the risk of exposure.
10. Remove protective clothing and work shoes in the work area to avoid
carrying dust into the rest of the dwelling. Wash work clothes separately.
Wipe shoes off with a wet rag, then wash that rag with the work clothes.
Wash hair and body thoroughly with soap and water.
SAVE THESE INSTRUCTIONS!
8
Page 9
MOTOR
Many Porter-Cable tools will operate on either D.C., or single phase 25 to 60
cycle A.C. current and voltage within plus or minus 5 percent of that shown on
the specification plate on the tool. Several models, however, are designed for A.C.
current only. Refer to the specification plate on your tool for proper voltage and
current rating.
Do not operate your tool on a current on which the voltage
is not within correct limits. Do not operate tools rated A.C.
only on D.C. current. To do so may seriously damage the tool.
EXTENSION CORD SELECTION
If an extension cord is used, make sure the conductor size is large enough to
prevent excessive voltage drop which will cause loss of power and possible
motor damage. A table of recommended extension cord sizes will be found in this
section. This table is based on limiting line voltage drop to 5 volts (10 volts for 230
volts) at 150% of rated amperes.
If an extension cord is to be used outdoors, it must be marked with the suffix W-A
or W following the cord type designation. For example – SJTW-A to indicate it is
acceptable for outdoor use.
RECOMMENDED EXTENSION CORD SIZES FOR USE WITH PORTABLE ELECTRIC TOOLS
Length of Cord in Feet
115V25 Ft.50 Ft.100 Ft. 150 Ft. 200 Ft.250 Ft. 300 Ft. 400 Ft.500 Ft.
230V50 Ft.100 Ft. 200 Ft. 300 Ft. 400 Ft.500 Ft. 600 Ft.800 Ft.1000 Ft.
The Model 121 hand-held Oscillating Sander offers the user the
convenience and portability that other sanders cannot provide. This tool
has many applications including solid surface sink cutouts, template work,
internal curved surfaces, and large workpieces.
9
Page 10
ASSEMBLY
NOTE: This tool is shipped completely assembled. No assembly time or tools are
required.
OPERATION
INSTALLING THE QUICK RELEASE DRUM SYSTEM
DISCONNECT TOOL FROM POWER SOURCE.
Note: When installing a 1/2" sanding sleeve on the shaft, do not use the
rubber drum (B) or washers (A) Fig. 1.
1. Place the washer (A) Fig. 1 on
the spindle shaft.
2. Place the rubber drum (B) on
the spindle shaft.
3. Place a second washer (A) over
the bolt hole opening.
4. Thread a 5/16-24 locking bolt (C)
on the shaft, but do not tighten.
5. Slide the sanding sleeve (D)
over the rubber drum (B). Make
sure that the sanding sleeve (D)
is flush with the rubber drum
(B).
6. Tighten the 5/16-24 locking bolt (C) on the shaft to hold the sanding
sleeve (D) in place.
D
A
C
A
B
Fig. 1
THE DUST COLLECTION NOZZLE
You can operate the Model 121
sander with or without the dust
collection nozzle. Attach the dust
collection nozzle to the sander
(Fig. 2) using the two knob screws
provided. You can also attach a
standard 1" vacuum hose to the
dust nozzle to connect the machine
to your vacuum cleaner or dust
collection system.
10
Fig. 2
Page 11
TO START AND STOP THE 121 OSCILLATING SANDER
1. Make sure that the switch is in the “OFF” position, and the power circuit
voltage is the same as the voltage shown on the specification plate.
Connect the tool to the power source.
2. Hold the tool as shown in Fig. 3 with the sander base in contact with a
stable and secure workpiece. Turn the tool “ON” with the power switch
(A) Fig. 4.
3. To turn the tool “OFF”, move the switch (A) Fig. 4 to the “OFF” position.
VARIABLE SPEED CONTROL
The Model 121 Oscillating Sander is equipped with a variable speed control
(B) Fig. 4. This control allows you to set your spindle speed. The slowest
setting (1) provides a spindle speed of 2400 rpm, with 38 oscillations per
minute. Setting 6 causes the spindle to turn at 3600 rpm with 60 oscillations
per minute. You can also set the variable speed control dial anywhere in
between these two speeds, depending on your wood type.
A
B
Fig. 3
Fig. 4
EDGE GUIDE INSTALLATION
DISCONNECT TOOL FROM POWER SOURCE.
NOTE: Use the edge guide only with the 2" rubber drum & sanding sleeve.
D
C
1. Align the holes in the base plate
(A) and (B) Fig. 5 with the holes in the
edge guide (C) and (D) Fig. 5. Insert
and securely tighten the two screws.
A
11
EDGE GUIDE
B
Fig. 5
Page 12
2. Adjust the feed guides (A) and (B)
Fig. 6, so that they are parallel to
the sanding drum (C).
3. Loosen the in-feed and out-feed
guides (A) and (B) Fig. 6 with a
3/16" hex wrench.
4. Place a straight edge on the
sanding drum (C) Fig. 6. Tap the
in-feed and out-feed guides (A
and B) until the guides and the
sanding drum (C) are resting on
the straight edge (Fig. 6), and are
parallel.
5. Tighten the 3/16" bolt to hold the out-feed guide (B) Fig. 6 in place.
6. Set the in-feed guide (A) Fig. 6 for the amount of material that you want
to remove.
Do not try to remove an excessive amount of material with
the tool. It can cause damage to the rubber sanding drum.
NOTE: Check the guide adjustment after changing sanding drums.
B
A
C
Fig. 6
EDGE GUIDE OPERATION
When using the edge guide, always
start sanding from the end or corner
of the workpiece for even sanding.
Start with the front feed guide against
the workpiece and gradually feed the
tool into the surface (Fig. 7).
Fig. 7
TROUBLESHOOTING
For assistance with your tool, visit our website at www.porter-cable.com for a list
of service centers or call the Porter-Cable help line at 1-888-848-5175.
12
Page 13
MAINTENANCE
KEEP TOOL CLEAN
Periodically blow out all air passages with dry compressed air. All plastic parts
should be cleaned with a soft damp cloth. NEVER use solvents to clean plastic
parts. They could possibly dissolve or otherwise damage the material.
Wear ANSI Z87.1 safety glasses while using compressed air.
FAILURE TO START
Should your tool fail to start, check to make sure the prongs on the cord plug are
making good contact in the outlet. Also, check for blown fuses or open circuit
breakers in the line.
LUBRICATION
This tool has been lubricated with a sufficient amount of high grade lubricant for
the life of the unit under normal operating conditions. No further lubrication is
necessary.
BRUSH INSPECTION (If applicable)
For your continued safety and electrical protection, brush inspection and
replacement on this tool should ONLY be performed by an AUTHORIZED
PORTER-CABLE SERVICE STATION or a PORTER-CABLE
FACTORY SERVICE CENTER.
At approximately 100 hours of use, take or send your tool to your nearest
authorized Porter-Cable Service Station to be thoroughly cleaned and inspected.
Have worn parts replaced and lubricated with fresh lubricant. Have new brushes
installed, and test the tool for performance.
Any loss of power before the above maintenance check may indicate the need
for immediate servicing of your tool. DO NOT CONTINUE TO OPERATE TOOL
UNDER THIS CONDITION. If proper operating voltage is present, return your tool
to the service station for immediate service.
• DELTA
SERVICE
REPLACEMENT PARTS
Use only identical replacement parts. For a parts list or to order parts, visit our website at
servicenet.porter-cable.com. You can also order parts from your nearest factory-owned
branch, or by calling our Customer Care Center at 1-888-848-5175 to receive personalized
support from highly-trained technicians.
SERVICE AND REPAIRS
All quality tools will eventually require servicing and/or replacement of parts. For
information about Porter-Cable, its factory-owned branches, or an Authorized Warranty
Service Center, visit our website at www.porter-cable. com or call our Customer Care Center at 1-888-848-5175. All repairs made by our service centers are fully guaranteed
against defective material and workmanship. We cannot guarantee repairs made or
attempted by others.
You can also write to us for information at PORTER-CABLE, 4825 Highway 45 North,
Jackson, Tennessee 38305 - Attention: Product Service. Be sure to include all of the
information shown on the nameplate of your tool (model number, type, serial number, etc.).
13
Page 14
ACCESSORIES
A complete line of accessories is available from your Porter-Cable•Delta Supplier,
Porter-Cable
•Delta Factory Service Centers, and Porter-Cable Authorized Service
Stations. Please visit our Web Site www.porter-cable. com for a catalog or for
the name of your nearest supplier.
Since accessories other than those offered by
Porter-Cable
•Delta have not been tested with this product,
use of such accessories could be hazardous. For safest operation, only
Porter-Cable
•Delta recommended accessories should be used with this
product.
WARRANTY
To register your tool for warranty service visit our website at
www.porter-cable.com
PORTER-CABLE LIMITED
ONE YEAR WARRANTY
Porter-Cable warrants its Professional Power Tools for a period of one year from the date of original
purchase. We will repair or replace at our option, any part or parts of the product and accessories
covered under this warranty which, after examination, proves to be defective in workmanship or
material during the warranty period. For repair or replacement return the complete tool or accessory,
transportation prepaid, to your nearest Porter-Cable Service Center or Authorized Service Station.
Proof of purchase may be required. This warranty does not apply to repair or replacement required
due to misuse, abuse, normal wear and tear or repairs attempted or made by other than our Service
Centers or Authorized Service Stations.
ANY IMPLIED WARRANTY, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE, WILL LAST ONLY FOR ONE (1) YEAR FROM THE DATE
OF PURCHASE.
To obtain information on warranty performance please write to: PORTER-CABLE, 4825 Highway
45 North, Jackson, Tennessee 38305; Attention: Product Service. THE FOREGOING OBLIGATION
IS PORTER-CABLE’S SOLE LIABILITY UNDER THIS OR ANY IMPLIED WARRANTY AND
UNDER NO CIRCUMSTANCES SHALL PORTER-CABLE BE LIABLE FOR ANY INCIDENTAL
OR CONSEQUENTIAL DAMAGES. Some states do not allow limitations on how long an implied
warranty lasts or the exclusion or limitation of incidental or consequential damages, so the above
limitation or exclusion may not apply to you.
This warranty gives you specific legal rights and you may also have other legal rights which vary
from state to state.
.
14
Page 15
The following are trademarks of PORTER-CABLE • DELTA (Las siguientes son marcas registradas
de PORTER-CABLE •DELTA S.A.) (Les marques suivantes sont des marques de fabriquant de la
PORTER-CABLE • DELTA): Auto-Set®, BAMMER®, B.O.S.S.®, Builder’s Saw®, Contractor’s Saw®,
Contractor’s Saw II™, Delta®, DELTACRAFT®, DELTAGRAM™, Delta Series 2000™, DURATRONIC™,
Emc²™, FLEX®, Flying Chips™, FRAME SAW®, Grip Vac™, Homecraft®, INNOVATION THAT
WORKS®, Jet-Lock®, JETSTREAM®, ‘kickstand®, LASERLOC®, MICRO-SET®, Micro-Set®, MIDI
LATHE®, MORTEN™, NETWORK™, OMNIJIG®, POCKET CUTTER®, PORTA-BAND®, PORTAPLANE®, PORTER-CABLE®&(design), PORTER-CABLE®PROFESSIONAL POWER TOOLS, PORTERCABLE REDEFINING PERFORMANCE™, Posi-Matic®, Q-3®&(design), QUICKSAND®&(design),
QUICKSET™, QUICKSET II®, QUICKSET PLUS™, RIPTIDE™&(design), SAFE GUARD II
LOC®, Sanding Center®, SANDTRAP®&(design), SAW BOSS®, Sawbuck™, Sidekick®, SPEEDBLOC®, SPEEDMATIC®, SPEEDTRONIC®, STAIR EASE®, The American Woodshop®&(design), The
Lumber Company®&(design), THE PROFESSIONAL EDGE®, THE PROFESSIONAL SELECT®, THINLINE™, TIGER®, TIGER CUB®, TIGER SAW®, TORQBUSTER®, TORQ-BUSTER®, TRU-MATCH™,
TWIN-LITE®, UNIGUARD®, Unifence®, UNIFEEDER™, Unihead®, Uniplane™, Unirip®, Unisaw®,
Univise®, Versa-Feeder®, VERSA-PLANE™, WHISPER SERIES®, WOODWORKER’S CHOICE™.
Trademarks noted with ™ and ® are registered in the United States Patent and Trademark Office
and may also be registered in other countries. Las Marcas Registradas con el signo de ™ y ® son
registradas por la Oficina de Registros y Patentes de los Estados Unidos y también pueden estar
registradas en otros países. Marques déposées, indiquées par la lettre ™ et ®, sont déposées au
Bureau des brevets d’invention et marques déposées aux Etats-Unis et pourraient être déposées aux
autres pays.
®
, SAFE-
4825 Highway 45 North
Jackson, TN 38305
1-888-848-5175
www.porter-cable.com
®
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