Harbor Freight Tools 42864 User Manual
FINISHING SANDER
®
42864
ASSEMBLY AND OPERATION INSTRUCTIONS
Due to continuing improvements, actual product may differ slightly from the product described herein.
3491 Mission Oaks Blvd., Camarillo, CA 93011
Visit our website at: http://www.harborfreight.com
TO PREVENT SERIOUS INJURY, READ AND UNDERSTAND
ALL WARNINGS AND INSTRUCTIONS BEFORE USE.
Copyright© 2006 by Harbor Freight Tools®. All rights reserved. No portion of this
manual or any artwork contained herein may be reproduced in any shape or form
without the express written consent of Harbor Freight Tools.
For technical questions or replacement parts, please call 1-800-444-3353.
SPECIFICATIONS
Electrical Requirements 120 V~, 60 Hz, 1 A (loaded)
Speed 12,000 OPM (Orbits Per Minute)
Dust Chute 1-1/4” OD
Dimensions 4” W x 4-3/4” L x 5-3/4” H
Dimensions: 3-1/2” W x 7-3/8” L
Finishing Sander Pads
Weight 2.5 lb.
Sold separately as Item 91063 - a 15 pack
with 5 each of 80, 150, & 240 grit
E194601
SAVE THIS MANUAL
You will need this manual for the safety warnings and precautions, assembly, operating, inspection, maintenance and cleaning procedures, parts list and assembly diagram.
Keep your invoice with this manual. Write the invoice number on the inside of the front
cover. Keep this manual and invoice in a safe and dry place for future reference.
GENERAL SAFETY RULES
1.
2.
3.
WARNING!
READ AND UNDERSTAND ALL INSTRUCTIONS
Failure to follow all instructions listed below may result in
electric shock, fire, and/or serious injury.
SAVE THESE INSTRUCTIONS
WORK AREA
Keep your work area clean and well lit. Cluttered benches and dark areas invite
accidents. Make sure there is adequate surrounding workspace.
Do not operate power tools in explosive atmospheres, such as in the pres-
ence of flammable liquids, gases, or dust. Power tools create sparks which may
ignite the dust or fumes.
Keep bystanders, children, and visitors away while operating a power tool.
Distractions can cause you to lose control. Protect others in the work area from
debris such as chips and sparks. Provide barriers or shields as needed.
ELECTRICAL SAFETY
1.
Grounded tools must be plugged into an outlet properly installed and grounded
in accordance with all codes and ordinances. Never remove the grounding
prong or modify the plug in any way. Do not use any adapter plugs. Check with
For technical questions, please call 1-800-444-3353.
Page 2SKU 42864
a qualified electrician if you are in doubt as to whether the outlet is properly
grounded. If the tools should electrically malfunction or break down, grounding
provides a low resistance path to carry electricity away from the user.
2.
3.
4.
5.
6.
Double insulated tools are equipped with a polarized plug (one blade is wider
than the other). This plug will fit in a polarized outlet only one way. If the plug
does not fit fully in the outlet, reverse the plug. If it still does not fit, contact
a qualified electrician to install a polarized outlet. Do not change the plug
in any way. Double insulation eliminates the need for the three wire grounded
power cord and grounded power supply system.
Avoid body contact with grounded surfaces such as pipes, radiators, ranges,
and refrigerators. There is an increased risk of electric shock if your body is
grounded.
Do not expose power tools to rain or wet conditions. Water entering a power
tool will increase the risk of electric shock.
Do not abuse the Power Cord. Never use the Power Cord to carry the tools or
pull the Plug from an outlet. Keep the Power Cord away from heat, oil, sharp
edges, or moving parts. Replace damaged Power Cords immediately. Dam-
aged Power Cords increase the risk of electric shock.
When operating a power tool outside, use an outdoor extension cord marked
“W-A” or “W”. These extension cords are rated for outdoor use, and reduce the
risk of electric shock.
1.
2.
3.
4.
5.
PERSONAL SAFETY
Stay alert. Watch what you are doing, and use common sense when operat-
ing a power tool. Do not use a power tool while tired or under the influence
of drugs, alcohol, or medication. A moment of inattention while operating power
tools may result in serious personal injury.
Dress properly. Do not wear loose clothing or jewelry. Contain long hair.
Keep your hair, clothing, and gloves away from moving parts. Loose clothes,
jewelry, or long hair can be caught in moving parts.
Avoid accidental starting. Be sure the Power Switch is off before plugging
in. Carrying power tools with your finger on the Power Switch, or plugging in power
tools with the Power Switch on, invites accidents.
Remove adjusting keys or wrenches before turning the power tool on. A
wrench or a key that is left attached to a rotating part of the power tool may result
in personal injury.
Do not overreach. Keep proper footing and balance at all times. Proper footing
and balance enables better control of the power tool in unexpected situations.
For technical questions, please call 1-800-444-3353.
Page 3SKU 42864
6.
Use safety equipment. Always wear eye protection. Dust mask, nonskid safety
shoes, hard hat, or hearing protection must be used for appropriate conditions. Al-
ways wear ANSI approved safety goggles and a dust mask/respirator when using
or performing maintenance on this tool.
TOOL USE AND CARE
1.
2.
3.
4.
5.
6.
Use clamps (not included) or other practical ways to secure and support the
workpiece to a stable platform. Holding the work by hand or against your body
is unstable and may lead to loss of control.
Do not force the tool. Use the correct tool for your application. The correct
tool will do the job better and safer at the rate for which it is designed. Do not force
the tool and do not use the tool for a purpose for which it is not intended.
Do not use the power tool if the Power Switch does not turn it on or off. Any
tool that cannot be controlled with the Power Switch is dangerous and must be
replaced.
Disconnect the Power Cord Plug from the power source before making any
adjustments, changing accessories, or storing the tool. Such preventive safety
measures reduce the risk of starting the tool accidentally. Always unplug the tool
from its electrical outlet before performing any inspection, maintenance, or
cleaning procedures.
Store idle tools out of reach of children and other untrained persons. Tools
are dangerous in the hands of untrained users.
Maintain tools with care. Keep cutting tools sharp and clean. Properly main-
tained tools with a sharp cutting edge are less likely to bind and are easier to control.
Do not use a damaged tool. Tag damaged tools “Do not use” until repaired.
7.
8.
1.
2.
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 become hazardous
when used on another tool.
SERVICE
Tool service must be performed only by qualified repair personnel. Service or
maintenance performed by unqualified personnel could result in a risk of injury.
When servicing a tool, use only identical replacement parts. Follow instruc-
tions in the “Inspection, Maintenance, And Cleaning” section of this manual.
Use of unauthorized parts or failure to follow maintenance instructions may create
a risk of electric shock or injury.
For technical questions, please call 1-800-444-3353.
Page 4SKU 42864
SPECIFIC SAFETY RULES
1.
2.
3.
4.
5.
6.
7.
Maintain labels and nameplates on the Sander. These carry important informa-
tion. If unreadable or missing, contact Harbor Freight Tools for a replacement.
When using a handheld power tool, always maintain a firm grip on the tool
with both hands to resist starting torque.
Avoid unintentional starting. Make sure you are prepared to begin work before
plugging in the Sander.
Never lay the tool down until it has come to a complete stop. Moving parts can
grab the surface and pull the tool out of your control.
Never leave the Sander unattended when it is plugged into an electrical outlet.
Turn off the tool, and unplug it from its electrical outlet before leaving.
Take caution as some woods contain preservatives such as copper chromium
arsenate (CCA) which can be toxic. When cutting these materials extra care should
be taken to avoid inhalation and minimize skin contact.
WARNING! Exposure to aluminum oxide (a dust generated from material removing
processes) can result in eye, skin, and respiratory irritation. Always use a NIOSH
(National Institute for Occupational Safety and Health) approved respirator and
ANSI approved safety goggles. Avoid skin exposure. Proper ventilation in the work
area is required.
8.
9.
WARNING! Some dust created by power sanding, sawing, grinding, drilling, and
other construction activities, contain chemicals known (to the State of California)
to cause cancer, birth defects or other reproductive harm.
Some examples of these chemicals are:
Lead from lead-based paints.
•
Crystalline silica from bricks and cement or other masonry products.
•
Arsenic and chromium from chemically treated lumber.
•
Your risk from these exposures varies, depending on how often you do this type of
work. To reduce your exposure to these chemicals: work in a well ventilated area,
and work with approved safety equipment, such as those dust masks that are specially designed to filter out microscopic particles.
(California Health & Safety Code § 25249.5, et seq.)
WARNING! People with pacemakers should consult their physician(s) before
using this product. Electromagnetic fields in close proximity to a heart pacemaker
could cause interference to or failure of the pacemaker.
In addition, people with pacemakers should adhere to the following:
Avoid operating power tools alone.
•
For technical questions, please call 1-800-444-3353.
Page 5SKU 42864
If powered via a power cord be certain that the tool is properly grounded. A ground
•
fault interrupt (GFCI) system is also a good precaution. This inexpensive device
is a good safety measure because it prevents a sustained electrical shock.
Properly maintain and inspect all tools before use to avoid electrical shock.
•
10.
Note: Performance of this tool (if powered by line voltage) may vary depending on varia-
WARNING! The warnings, cautions, and instructions discussed in this instruction
manual cannot cover all possible conditions and situations that may occur. It must
be understood by the operator that common sense and caution are factors which
cannot be built into this product, but must be supplied by the operator.
tions in local line voltage. Extension cord usage may also affect tool performance.
GROUNDING
WARNING!
Improperly connecting the grounding wire can result in the risk of electric shock.
Check with a qualified electrician if you are in doubt as to whether the outlet is
properly grounded. Do not modify the power cord plug provided with the tool.
Never remove the grounding prong from the plug. Do not use the tool if the
power cord or plug is damaged. If damaged, have it repaired by a service facility before use. If the plug will not fit the outlet, have a proper outlet installed by
a qualified electrician.
1.
2.
GROUNDED TOOLS: TOOLS WITH THREE PRONG PLUGS
Tools marked with “Grounding Required” have a three wire cord and three prong
grounding plug. The plug must be connected to a properly grounded outlet. If
the tool should electrically malfunction or break down, grounding provides a low
resistance path to carry electricity away from the user, reducing the risk of electric
shock. (See Figure A.)
The grounding prong in the plug is connected through the green wire inside the
cord to the grounding system in the tool. The green wire in the cord must be the
only wire connected to the tool’s grounding system and must never be attached to
an electrically “live” terminal. (See Figure A.)
For technical questions, please call 1-800-444-3353.
Page 6SKU 42864
3.
Your tool must be plugged into an appropriate outlet, properly installed and grounded
in accordance with all codes and ordinances. The plug and outlet should look like
those in the following illustration. (See Figure A.)
FIGURE A
FIGURE B
DOUBLE INSULATED TOOLS: TOOLS WITH TWO PRONG PLUGS
1.
2.
Tools marked “Double Insulated” do not require grounding. They have a special
double insulation system which satisfies OSHA requirements and complies with
the applicable standards of Underwriters Laboratories, Inc., the Canadian Standard
Association, and the National Electrical Code. (See Figure B.)
Double insulated tools may be used in either of the 120 volt outlets shown in the
preceding illustration. (See Figure B.)
EXTENSION CORDS
1.
2.
Grounded tools require a three wire extension cord. Double Insulated tools can
use either a two or three wire extension cord.
As the distance from the supply outlet increases, you must use a heavier gauge
extension cord. Using extension cords with inadequately sized wire causes a serious drop in voltage, resulting in loss of power and possible tool damage.
(See Figure C, next page.)
3.
4.
5.
6.
The smaller the gauge number of the wire, the greater the capacity of the cord. For
example, a 14 gauge cord can carry a higher current than a 16 gauge cord.
(See Figure C.)
When using more than one extension cord to make up the total length, make sure
each cord contains at least the minimum wire size required. (See Figure C.)
If you are using one extension cord for more than one tool, add the nameplate am-
peres and use the sum to determine the required minimum cord size.
(See Figure C.)
If you are using an extension cord outdoors, make sure it is marked with the suffix
“W-A” (“W” in Canada) to indicate it is acceptable for outdoor use.
For technical questions, please call 1-800-444-3353.
Page 7SKU 42864
7.
Make sure your extension cord is properly wired and in good electrical condition.
Always replace a damaged extension cord or have it repaired by a qualified electrician before using it.
8.
Protect your extension cords from sharp objects, excessive heat, and damp or wet
areas.
RECOMMENDED MINIMUM WIRE GAUGE FOR EXTENSION CORDS*
(120 OR 240 VOLT)
NAMEPLATE
EXTENSION CORD LENGTH
AMPERES
(at full load)
0 – 2.0 18 18 18 18 16
2.1 – 3.4 18 18 18 16 14
3.5 – 5.0 18 18 16 14 12
5.1 – 7.0 18 16 14 12 12
7.1 – 12.0 18 14 12 10 -
12.1 – 16.0 14 12 10 - -
16.1 – 20.0 12 10 - - -
FIGURE C
25 Feet 50 Feet 75 Feet 100 Feet 150 Feet
* Based on limiting the line voltage drop to five volts at 150% of the rated amperes.
SYMBOLOGY
Double Insulated
Canadian Standards Association
Underwriters Laboratories, Inc.
V~
A
n0 xxxx/min.
Volts Alternating Current
Amperes
No Load Revolutions per Minute (RPM)
UNPACKING
When unpacking, check to make sure that the item is intact and undamaged. If any
parts are missing or broken, please call Harbor Freight Tools at the number shown on the
cover of this manual as soon as possible.
For technical questions, please call 1-800-444-3353.
Page 8SKU 42864
ASSEMBLY INSTRUCTIONS
Note: For additional information regarding the parts listed in the following pages, refer to
the Assembly Diagram at the end of this manual.
CAUTION: Always make sure the Power Cord (17) of the Sander is unplugged from its
electrical outlet prior to making any adjustments or assembling to the tool.
Attaching the dust collection chute (0)
1.
2.
3.
1.
2.
Turn the Chute (0) so that the tab on top of the rectangular end faces up. Snap it
in place into the rectangular shaft at the back of the Sander.
Connect a 1-1/4” dust collection hose from the Chute to your dust collection system
(hose and system not included).
The Dust Collection Chute (0) will only work if the sandpaper has holes that line up
with the 6 dust collection holes in the Backing Pad (28). (There are 4 other holes in
the Backing Pad for the Screws (29).)
Attaching sandpaper to the Backing Pad (28)
Press the tab on the Clamps (6) inward
on both sides of the unit and swing
the clamps on both sides up, out, and
down. See 1 & 2, right.
Cut the sandpaper to fit the 3-1/2” W
x 7-3/8” L Sander Pad (28), with a
little extra to overlap and fit under the
Clamps (6). Do not use torn or frayed
sandpaper.
Sandpaper
Sandpaper
goes under
goes under
here
here
3.
After wrapping the overlapped edges of sandpaper under the Clamps (6), snap the
Clamps (6) back into place.
For technical questions, please call 1-800-444-3353.
Page 9SKU 42864
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