DUAL DOWEL JOINTER
120V/60hZ
Model 97427
SET Up AND OpERATINg INSTRUcTIONS
Diagrams within this manual may not be drawn proportionally.
Due to continuing improvements, actual product may differ slightly from the product described herein.
®
Distributed exclusively by harbor Freight Tools .
3491 Mission Oaks Blvd., Camarillo, CA 93011
Visit our website at: http://www.harborfreight.com
Read this material before using this product.
Failure to do so can result in serious injury.
SAVE ThIS MANUAL.
©
®
Copyright 2008 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.
outlets will reduce risk of electric
shock.
before plugging in. Carrying power
tools with your finger on the switch
or plugging in power tools that have
the switch on invites accidents.
b. 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.
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.
c. Do not expose power tools to rain
or wet conditions. Water entering a
power tool will increase the risk of
electric shock.
e. Do not overreach. Keep proper
footing and balance at all times.
This enables better control of the
power tool in unexpected situations.
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.
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.
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.
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.
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.
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.
b. Use safety equipment. Always wear
eye protection. Safety equipment
such as dust mask, non-skid
safety shoes, hard hat, or hearing
protection used for appropriate
conditions will reduce personal
injuries.
c. 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
c. Avoid accidental starting. Ensure
the switch is in the off-position
preventive safety measures reduce
SKU 97427
For technical questions, please call 1-800-444-3353.
Page 3
the risk of starting the power tool
accidentally.
vibration may cause temporary or
permanent physical injury, particularly
to the hands, arms and shoulders. To
reduce the risk of vibration-related
injury:
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.
1. Anyone using vibrating tools regularly
or for an extended period should
first be examined by a doctor and
then have regular medical check-
ups to ensure medical problems are
not being caused or worsened from
use. Pregnant women or people
who have impaired blood circulation
to the hand, past hand injuries,
e. 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.
nervous system disorders, diabetes,
or Raynaud’s Disease should not
use this tool. If you feel any medical
or physical symptoms related to
vibration (such as tingling, numbness,
and white or blue fingers), seek
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.
medical advice as soon as possible.
2. Do not smoke during use. Nicotine
reduces the blood supply to the
hands and fingers, increasing the risk
of vibration-related injury.
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.
3. Wear suitable gloves to reduce the
vibration effects on the user.
4. Use tools with the lowest vibration
when there is a choice between
different processes.
5. Include vibration-free periods each
day of work.
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.
6. Grip tool as lightly as possible (while
still keeping safe control of it). Let
the tool do the work.
7. To reduce vibration, maintain the tool
as explained in this manual. If any
abnormal vibration occurs, stop use
immediately.
Vibration hazard
This tool vibrates during use.
Repeated or long-term exposure to
SKU 97427
For technical questions, please call 1-800-444-3353.
Page 4
12. 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.
Specific Safety Rules
1. Maintain labels and nameplates on
the tool. These carry important safety
information. If unreadable or missing,
contact Harbor Freight Tools for a
replacement.
13. This product is not a toy. Keep it out
of reach of children.
2. Always examine the workpiece for
foreign objects. Never attempt to cut
into nails or other metal objects.
14. People with pacemakers should
consult their physician(s) before
use. Electromagnetic fields in close
proximity to heart pacemaker could
cause pacemaker interference or
pacemaker failure. In addition,
people with pacemakers should:
• Avoid operating alone.
3. Always keep your hands and fingers
well away from the chip ejection area
while the tool is running.
4. Avoid unintentional starting. Prepare
to begin work before turning on the
tool.
• Do not use with power switch locked
on.
• Properly maintain and inspect to
avoid electrical shock.
• Any power cord must be properly
grounded. Ground Fault Circuit
Interrupter (GFCI) should also be
implemented – it prevents sustained
electrical shock.
5. Begin cutting only when the Bits have
reached full speed.
6. Keep the Cutter Head and Drive
Guards in place and in proper
working order.
7. Do not make jointing or planing cuts
deeper than 1/8 inch.
15. 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:
8. Use hold-down/push blocks for
jointing material narrower than 3
inches, or planing material thinner
than 3 inches.
9. Do not perform jointing or planing
cuts on pieces shorter than 8 inches
in length.
• Lead from lead-based paints
• Crystalline silica from bricks and
cement or other masonry products
• Arsenic and chromium from
10. Do not 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.
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
11. Do not leave the tool unattended
when it is plugged into an electrical
outlet. Turn off the tool, and unplug
it from its electrical outlet before
leaving.
SKU 97427
For technical questions, please call 1-800-444-3353.
Page 5
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.)
grounded Tools: Tools with Three
prong plugs
16. The warnings, precautions,
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.
3-prong plug and Outlet
1. 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 3-prong plug
and Outlet.)
SAVE ThESE
INSTRUcTIONS.
gROUNDINg
TO pREVENT
ELEcTRIc ShOck
WARNINg
2. 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
3-prong plug and Outlet.)
AND DEATh FROM
INcORREcT gROUNDINg
WIRE cONNEcTION:
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.
3. The 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
preceding illustration. (See 3-prong
plug and Outlet.)
SKU 97427
For technical questions, please call 1-800-444-3353.
Page 6
example, a 14 gauge cord can carry
a higher current than a 16 gauge
cord. (See Table A.)
Double Insulated Tools: Tools
with Two prong plugs
3. 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 Table A.)
4. If you are using one extension cord
for more than one tool, add the
nameplate amperes and use the sum
to determine the required minimum
cord size. (See Table A.)
Outlets for 2-prong plug
1. 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
Outlets for 2-prong plug.)
5. 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.
6. Make sure the 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.
2. Double insulated tools may be used
in either of the 120 volt outlets shown
in the preceding illustration. (See
Outlets for 2-prong plug.)
7. Protect the extension cords from
sharp objects, excessive heat, and
damp or wet areas.
Extension cords
1. Grounded tools require a three wire
extension cord. Double insulated
tools can use either a two or three
wire extension cord.
2. 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 Table A.) The smaller the
gauge number of the wire, the
greater the capacity of the cord. For
SKU 97427
For technical questions, please call 1-800-444-3353.
Page 7
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