Harbor Freight Tools 41921 User Manual
10” Auto PlAner
Model
41921
®
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© 1999 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
Motor 115 V/60 Hz. 2.2 HP
Amps 7.1 (no load)
Cuts per Minute 16,000
Cutter Head RPM’s 8,000 (no load)
Cutting Knives 2, Bi-Metal, M-2 edge
Feed Rate 23 feet per minute
Table Dimension 12-5/8”L x 10-1/4”W
Sound Level 94 dB
Included Accessories
Combination wrench
2 hex wrenches
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Adjustable extensions to support long workpieces.
Anti-kickback safety devices prevent workpieces from being ejected toward the operator.
Two bi-metallic blades are adjustable and replaceable for powerful cutting performance.
Power Cord 5’9”, 3-pole, UL listed
Overall Dimensions 22” x 16” x 23-1/4”
Weight 89.5 lb.
Cutting Capacity
Length of unbutted stock 8” minimum
Width of stock 10” max.
Thickness of stock 1/4” - 5”
Depth of cut 1/8” max.
Carbon Brush set
Blade / Knife Gauge
Features
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Compact and lightweight machine can plane workpieces up to 10” wide and 5” thick.
Positive adjusting table with crank handle and easy to read thickness gauge.
ON/OFF switch has removable safety lock device to prevent unauthorized use of the machine.
Integral circuit breaker protects the motor from burn out.
Save this manual
You will need the manual for the safety warnings and cautions, assembly instructions, operating
procedures, maintenance procedures, trouble shooting, parts list, and diagram. Keep your invoice with this
manual. Write the invoice number on the inside of the front cover. Keep both this manual and your invoice
in a safe, dry place for future reference.
NOTICE
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.
SAFETY WARNING & CAUTIONS
1.
READ ALL INSTRUCTIONS BEFORE USING THIS TOOL!
Warning! Make sure blade is fastened and tightened down securely.
For technical questions, please call 1-800-444-3353.
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2.
Keep work area clean. Cluttered areas invite injuries.
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Observe work area conditions. Do not use tools in damp, wet, or poorly lit locations. Don’t ex-
pose to rain. Keep work area well lit. Do not use electrically powered equipment in the presence
of flammable gases or liquids.
Keep children away. Children must never be allowed in the work area. Do not let them handle
machines, tools, or equipment.
Store idle equipment. When not in use, tools must be locked up in a dry location to inhibit rust.
Always lock up tools and keep out of reach of children.
Do not force the tool. It will do the job better and more safely at the rate for which it was intended.
Do not use inappropriate attachments in an attempt to exceed the tool’s capacities.
Use the right tool for the job. Do not use a tool for a purpose for which it was not intended.
Dress properly. Do not wear loose clothing or jewelry, as they can be caught in moving parts.
Non-skid footwear is recommended. Wear restrictive hair covering to contain long hair. Always
wear appropriate work clothing.
Use eye, ear, and breathing protection. Always wear ANSI approved impact safety goggles if you
are producing metal filings or wood chips. Wear an ANSI approved dust mask or respirator when
working around metal, wood, and chemical dusts and mists. Use ANSI approved ear protection
when working in a loud or noisy environment.
Do not abuse the power cord. Protect the power cord from damage, either from impacts, pulling
or corrosive materials. Do not yank machine’s cord to disconnect it from the receptacle.
Do not overreach. Keep proper footing and balance at all times. Do not reach over or across run-
ning machine.
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Maintain tools with care. Keep tools sharp and clean for better and safer performance. Follow
instructions for lubricating and changing accessories. Inspect power cord periodically and, if dam-
aged, have it repaired by an authorized technician. Inspect all hydraulic seals for leaks prior to
use. Control handle and power switch must be kept clean, dry, and free from oil and grease at all
times.
Remove adjusting keys and wrenches. Be sure that keys and adjusting wrenches are removed
from the tool or machine work surface before operation.
Avoid unintentional starting. Be sure that you are prepared to begin work before turning the
start switch on.
Stay alert. Watch what you are doing. Do not operate this machine when you are tired.
Do not operate this machine while under the influence of alcohol, drugs, or prescription
medicines.
Check for damaged parts. Before using any tool, any part that appears damaged should be care-
fully checked to determine that it will operate properly and perform its intended function. Check
for alignment and binding of moving parts, any broken parts or mounting fixtures, and any other
condition that may affect proper operation. Any part that is damaged should be properly repaired
or replaced by a qualified technician. Do not use the tool if any switch does not turn on and off
properly.
Replacement parts and accessories. When servicing, use only identical replacement parts in-
tended for use with this tool. Replacement parts are available from harbor freight tools. Use of any
other parts will void the warranty.
For technical questions, please call 1-800-444-3353.
Page 3SKU 41921
Special Warnings when using this Planing Machine
Using this Planer may create special hazards.
Take particular care to safeguard yourself and those around you.
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Electrical Safety. Never operate any tool if there is an electrical hazard. Never operate an
electrical tool in wet conditions. Never operate a tool with an improper electrical cord or extension
cord. Never operate an electrical tool unless it is plugged into a properly grounded outlet, which
supplies 110-120 Volts at 60 Hz. We recommend you use a circuit which is protected by an ap-
propriate circuit breaker.
Ejected Material. Use safe practices to avoid injury from ejected material. Because the planer
turns at high speed, there is a danger of being injured by materials that may be ejected. Always
wear ANSI-certified eye protection. Always stand to one side of the line in which the materials are
being inserted or extruded, to avoid being hit if particles are ejected. Never allow bystanders to
be in the proximity of the Planer while in operation.
Jamming. Avoid causing the planer to bog down or jam by avoiding the following situations. Do not
attempt to plane more than 1/8” at a time, or less if the wood is very hard. Do not attempt to feed
more than the stated feed rate, or less if the wood is very hard. Be sure your knife blades are kept
sharp. Check all workpieces for knots and foreign objects before planing. If the workpiece jams, it
is likely the circuit breaker will break to protect the motor.
Entanglement. Use extreme caution to prevent loose materials from being caught in the
machine. Never operate this Planer with loose clothing, long hair, jewelry, or other items which
may become caught in the blades or workpieces. In case of entanglement, press the OFF switch
immediately.
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.
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Some dust created by power sanding, sawing, grinding, drilling, and other construction activi-
ties, contains chemicals known [to the State of California] to cause cancer, birth defects or
other reproductive harm. Some examples of these chemicals are: Lead from lead-based paints
Crystalline silica from bricks 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.)
NOTICE: No list of warnings can be all inclusive.
The operator must supply common sense, and operate this tool in a safe manner.
UNPACKING
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Remove protective crating and materials carefully. In the event of damage in transit, contact Harbor
Freight Tools. Be sure you have all small parts accounted for before discarding packing materi-
als.
Check to be sure all parts are present. In addition to the planer, you should receive the accessories
noted on page 2. You should also receive a crank handle, 2 carrying handles, and 2 table exten-
sions, with their related hardware. If the 4 base brackets are not installed, they should be included,
together with attaching hardware.
For technical questions, please call 1-800-444-3353.
07i
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INSTALLATION
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It is important that the machine be located on a solid, level platform. Find a location that has easy
access to 110-120 Volt electrical service. Make sure this machine is located in a well lighted and
well ventilated area. The floor should be resistant to vibration. There must be adequate room to
insert and remove workpieces through the planer.
To permanently install the machine, check the platform to be sure it is even and level. Make any
required corrections to the platform. If the base brackets are not attached to each lower corner
of the machine, attach them using the supplied hardware. Mark and drill holes, and mount the
machine using bolts and nuts.
If the machine will not be permanently installed, it is advisable to attach it to wooden skids by
means of the base brackets. The skids should be solid hardwood at least 1” in thickness and 2”
in width. Route these skids along each side of the machine from front to back. Each skid should
extend several inches beyond the machine to allow them to be firmly clamped to the work surface
before using the machine.
WARNING: Never operate this machine if it is not firmly attached to a work surface. If
left unattached, the machine may move along the work surface possibly falling over,
ejecting the work piece, or creating other hazards which can cause serious injury.
Electrical Power
This machine requires a 110-120V 60 Hz grounded power supply. This power is available in most
common household or workshop outlets in the United States. Please observe the following safety
precautions. (Note: Voltage variations of more than + or - 10% from the specification will result
in noticeable reduction of service, and may cause damage to the motor).
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Route the power cord in a way that avoids damage to the cord from other tools or machinery, and
isolates the cord from exposure to wet or corrosive conditions.
Avoid routing cord along the floor, walkways, or halls, where it may cause a trip hazard.
Be sure the outlet is grounded and protected with an appropriate circuit breaker. Check with a
qualified electrician if you have any doubts or concerns about your electrical service.
If you will use an extension cord, be sure to use a 3-prong, grounded cord. Preferably the cord will
be UL listed. Know that long extension cords cause a noticeable power drop. It is necessary to
use cords of the proper gauge to avoid excessive resistance or power drop within the cord. Please
comply with the following table.
RECOMMENDED MINIMUM WIRE GAUGE FOR EXTENSION CORDS* (120 OR 240 VOLT)
NAMEPLATE AMPERES
(at full load)
7.1 – 12.0 18 14 12 10 -
12.1 – 16.0 14 12 10 - -
16.1 – 20.0 12 10 - - -
* Based on limiting the line voltage drop to five volts at 150% of the rated amperes.
25 Feet 50 Feet 75 Feet 100 Feet 150 Feet
EXTENSION CORD LENGTH
For technical questions, please call 1-800-444-3353.
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