1/4 INCH TRIMMER ROUTER
44914
ASSEMBLY AND OPERATING INSTRUCTIONS
Workpiece not
included
3491 Mission Oaks Blvd., Camarillo, CA 93011
TO PREVENT SERIOUS INJURY,
READ AND UNDERSTAND ALL WARNINGS
AND INSTRUCTIONS BEFORE USE.
©
®
Copyright 2001 by Harbor FreightTools . 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 and replacement parts, please call 1-800-444-3353
REV 02/04
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5.
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.
6.
7.
8.
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. Damaged Power Cords
increase the risk of electric shock.
9.
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.
PERSONAL SAFETY
10.
Stay alert. Watch what you are doing, and use common sense when operating 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.
11.
12.
13.
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.
14.
15.
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.
Use safety equipment. Always wear eye protection. Dust mask, nonskid safety
shoes, hard hat, or hearing protection must be used for appropriate conditions.
TOOL USE AND CARE
16.
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.
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17.
18.
19.
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 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.
20.
21.
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 maintained
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.
22.
23.
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
24.
25.
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 instructions
in the “Maintenance”section of this manual. Use of unauthorized parts or failure to
follow maintenance instructions may create a risk of electric shock or injury.
SPECIFIC SAFETY RULES FOR ROUTERS
1.
2.
Hold tool by insulated gripping surfaces when performing an operation where
the cutting tool may contact hidden wiring or its own cord. Contact with “live” wire
will make exposed metal parts of the tool “live” and shock the operator.
WARNING: Under no circumstance is the Router base ever to be removed from
the Router in order to use bits that are too large to use with the base assembly
attached. The removal of the Router base and using the Router “Free Hand” can lead
to SERIOUS BODILY INJURY.
3.
WARNING: This Router has sharp, fast-moving parts.
MISUSE CAN CAUSE SEVERE INJURY.
• Never operate the router if the clear plastic cover is not in place.
• Never touch the bit, collet or any other moving parts while the trimmer is in
operation.
• Never lay the trimmer down until it has stopped rotating completely.
Warning #3 continued on page 5
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Page 4
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• Hold the tool firmly when starting, as start up rotation creates significant torque.
This can cause you to drop the tool if you are not holding it firmly.
• Secure the object being routed by clamping, or holding in a vise. Never hold
by hand.
4.
5.
Make sure the workpiece is free of nails or other debris. These can interfere with
the cutting process, and possibly cause damage or injury.
Be careful to use the Power Switch properly.Be aware that the trimmer will continue
to operate while the Power Switch is ON.You must manually turn the switch to OFF to
stop the motor.
6.
Hold the tool firmly while cutting. The action of the blade against the workpiece can
cause it to “kick out,” jumping rapidly away from the workpiece. If you experience
excessive “kick out” check your blade to assure that it is the proper type for the material
being cut, and that it is sharp.
7.
8.
Do not handle the router bit immediately after use; it may be very hot, potentially
causing burns or injury.
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.
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:
A) Lead from lead-based paints
B) Crystalline silica from bricks and cement or other masonry products
C) 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. )
10. Avoid overloading the tool.
• If the speed drops abnormally, decrease the pressure on the bit immediately.
• Do not apply excessive pressure to the trimmer while cutting.
• Always use sharpened bits.If the bit stops abruptly, or the bit becomes blocked,
release the trigger switch immediately.
• Never start the trimmer while the bit is in contact with any material. Allow the
tool to reach its normal operating speed before applying it to the workpiece.
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 FACTORSWHICH CANNOT BE BUILT INTOTHIS
PRODUCT, BUT MUST BE SUPPLIED BY THE OPERATOR.
REV 02/04
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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 prop-
erly 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.
GROUNDED TOOLS:TOOLS WITH THREE PRONG PLUGS
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
Figure A, below left.)
2.
3.
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, below left.)
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, below left.)
FIGURE B
FIGURE A
DOUBLE INSULATED TOOLS:TOOLS WITH TWO PRONG PLUGS
4.
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, above right.)
5.
Double insulated tools may be used in either of the 120 volt outlets shown in the upper
right illustration. (See Figure B, above right.)
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EXTENSION CORDS
1.
2.
Grounded tools require a 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.)
3.
4.
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.)
If 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.)
5.
If you are using one
REQUIRED MINIMUM EXTENSION CORD
GAUGE - 110 VOLT
extension cord for more than
one tool, add the nameplate
amperes and use the sum to
determine the required
minimum cord size. (See
Figure C.)
EXTENSION CORD LENGTH
NAMEPLATE
AMPERES
(At Full Load)
0-25 FT. 25-50 FT. 50-100 FT. 100-150 FT.
6
8
18
16
16
16
14
14
14
12
12
12
10
10
10
16
16
14
14
12
12
12
12
10
10
10
10
10
14
12
12
10
10
10
8
8
8
8
8
12
10
10
8
8
8
8
6
6
6
6.
If you are using an
10
12
14
16
18
20
22
24
26
28
30
extension cord outdoors,
make sure it is marked with
the suffix “W-A” (“W” in
Canada) to indicate it is
acceptable for outdoor use.
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.
6
4
4
6
6
FIGURE C
8.
Protect your extension cords from
sharp objects, excessive heat, and
damp or wet areas.
SYMBOLOGY
Double Insulated
Canadian Standards
Association
Underwriters
Laboratories, Inc.
Volts Alternating Current
V ~
A
Amperes
No Load Revolutions
per Minute (RPM)
n
o
xxxx/min.
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Unpacking
When unpacking, check to make sure the following parts are included. If any parts are
missing or broken, please call Harbor Freight Tools at the number on the cover of this
manual as soon as possible.
Carbon Brushes (4)
Trimmer Router
Straight Guide Assy
(44)
Spanner (101)
Straight Guide Assy (44)
Trimmer Guide Assy (42)
Spanner (102)
Operation
Caution: Before Trimming, run the tool for about 10 seconds to ensure that all moving parts
are running smoothly, and there are no loose parts, rattles, or sparking that would indicate
damage. Be sure the bit is firmly and properly installed before use. Improperly installed bits
may eject suddenly at high speed from the Trimmer, resulting in personal injury.
Installing the Router Bit
1. Unplug the Trimmer Router from the electrical outlet.
2. Insert the small Spanner (101) wrench over the spindle to keep it from turning.
3. Using the large Spanner (102) wrench, loosen the Collet Nut (31), but do not remove.
4. If there is already a bit in the Collet Cone, remove it.
5. Push the shank end of the new bit through the opening in the Collet Nut. There may be
some resistance, so make sure that it goes in all the way.
6. While holding the small Spanner (101) over the spindle, tighten the Collet Nut with the
large Spanner (102).
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Adjusting Cutting Depth
You can set the depth of cut using the scale marked on the side of the Trimmer.
1. Install the router bit as previously described.
2. Loosen the thumbscrew securing the clear plastic Base (32) to the Motor Housing (29).
Slide the holder downward so the router bit is retracted within the Base.
3. Place the Base on a flat surface, and slide the Trimmer down in the Base until the tip of
the bit contacts the work surface.Tighten the thumbscrew Knob (49).
4. The scale on the housing now shows the starting position. This starting position will
vary, depending on the bit used.
5. Add the desired depth of cut to the starting position. For example, if the starting
position is 25 mm, and the desired depth of cut is 10 mm, the correct adjustment on the
scale is 35 mm.
6. Loosen the thumbscrew Knob, and raise the holder until the scale shows the correct
reading; in this example 35 mm. Tighten the thumbscrew Knob.You are now ready to
cut.
Note:It is always wise to make a test cut to assure that theTrimmer is adjusted properly before
beginning to cut the final workpiece.
Using the Straight Guide
The Straight Guide is used to make cuts parallel to the edge of a workpiece, or following a
guide clamped onto the workpiece.
1. Assemble the Straight Guide Assy. (44) with the Straight
Guide (442) facing inward, and the flanges down.
2. Using the Thumbscrew (39), attach the Straight Guide
Assembly to the Trimmer, as shown.
(39)
3. After measuring the proper distance from the router bit
(445)
to the guard, tighten the Straight Guide using the
(442)
Thumb Nut (445).
4. Adjust the cutting depth as previously described above.
5. Make a test cut on a piece of scrap material to ensure that your measurement is
correct.
6. Make your cut parallel to the edge of the workpiece with the Straight Guide following
the edge.
Caution: Always secure the object being routed by clamping, or holding inavise. Never
hold by hand.
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Alternative Guide Method
You can make a straight cut which does not parallel the edge of the workpiece by clamping
down a temporary guide.
1. Clamp a suitable straight board across the workpiece
parallel to the desired location of the cut.
2. Assemble the Straight Guide Assy. (44) with the Straight
Guide (442) facing outward and up, as shown to the right.
(A)
3. After measuring the proper distance from the router bit to
the guide, tighten the straight guide using the thumbscrew
(44)
(442)
Knobs.
4. On a piece of scrap material make a test cut to ensure that
your measurement is correct.
5. Using the Straight Guide to follow the straight board, make your cut parallel to the
guide.
Making Circle Cuts
The center hole (A) in the Straight Guide Assy (44), shown above, can be used as a pivot
point to make circle cuts.
1. Install the Straight Guide Assy as shown above.
2. Drill a small pilot hole at the center point of the circle you wish to cut.
3. Set the distance from the center hole (A) in the Straight Guide Assy (44) to the router bit
equal to the radius of the circle you wish to cut. Lock the Straight Guide in place with
the thumbscrew Knobs.
4. Insert a pin (not included) through the center hole (A) in the Straight Guide Assy., and
into the pilot hole.
5. With the pin located in the pilot hole, plunge the trimmer into the workpiece, and rotate
the trimmer in a circle around the pilot hole.
Using theTrimmer Guide Assembly
(424)
1. Assemble the edge Trimmer Guide Assembly (42),
as shown to the right, and attach to the Base (32).
(32)
(430)
(427)
2. Since you will be trimming in relation to both the
top surface, and the edge surface, you must adjust
the trimmer to cut accurately in two dimensions.
(42)
(39)
(424)
3. Adjust the Base on the Trimmer so the cutting
depth will be flush with the surface of the counter
top or edge that you will be trimming to match.
4. Adjust the Trimmer Guide Assy. so that the roller is below the router bit by
approximately 3/4” to 1.” Tighten it in position using Thumbscrew (39).
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5. Finally, center the cutting bit over the edge to be trimmed by loosening Thumbscrew
(430) and sliding the Guide Block (427) into position. Tighten Thumbscrew (430).
With Thumbscrew (430) partially loosened, fine adjustments can be made with
Adjusting Set Screw (424). When the adjustments are finalized, tighten Thumbscrew
(430).
6. Make a test cut on a piece of scrap material. Make any necessary adjustments before
cutting the final workpiece.
BestTrimming Routing Direction
The Router Bit rotates clockwise.You must adjust for this while cutting.
1. For most materials it is best to move the Router from left to right as you face the
workpiece.
2. When cutting outside edges, move the router counterclockwise. When cutting inside
edges, move the router clockwise.
Maintenance
Caution: Avoid injuries. Before performing any maintenance on this tool, unplug the
power cord from the electrical outlet, and wait for the router and/or bit to cool.
1. Wipe the Tool with a clean cloth after every use.
2. Periodically blow out the Motor vent holes with compressed air to prevent the buildup
of dust and particles.
3. Periodically wipe the Collet, Collet Cones, and Cutting Bits with a light oil to prevent
rust.
4. Over time, if the performance of the tool diminishes, or it stops working completely, it
may be necessary to replace the Carbon Brushes (4) by removing the Brush Holder
Cap (5).This procedure must be completed by a qualified technician.
PLEASE READTHE FOLLOWING CAREFULLY
THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDEDTHE PARTS DIAGRAM INTHIS
MANUAL AS A REFERENCETOOL ONLY. NEITHERTHE MANUFACTURER NOR DISTRIBUTOR
MAKES ANY REPRESENTATION OR WARRANTY OF ANY KIND TO THE BUYER THAT HE OR
SHE IS QUALIFIEDTO MAKE ANY REPAIRSTOTHE PRODUCT ORTHAT HE OR SHE IS QUALI-
FIED TO REPLACE ANY PARTS OF THE PRODUCT. IN FACT, THE MANUFACTURER AND/OR
DISTRIBUTOR EXPRESSLY STATESTHAT ALL REPAIRS AND PARTS REPLACEMENTS SHOULD
BE UNDERTAKEN BY CERTIFIED AND LICENSED TECHNICIANS AND NOT BY THE BUYER.
THE BUYER ASSUMES ALL RISK AND LIABILITY ARISING OUT OF HIS OR HER REPAIRS TO
THE ORIGINAL PRODUCT OR REPLACEMENT PARTSTHERETO, OR ARISING OUT OF HIS OR
HER INSTALLATION OF REPLACEMENT PARTSTHERETO.
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Parts List
Item #
Description
Base Plate
Item #
1
Description
Rear Cover
37
38
39
40
41
Chip Fence
Thumbscrew
Wave Washer
Flat Washer
2
Middle Cover
Carbon Brush Holder
Carbon Brush
Brush Holder Cap
Switch
3
4
5
Trimmer Guide Assembly:
(420~430, 39, 40, 41)
42
6
420 Link
7
Switch Socket
Brush Holder Spring
Stator
421 Counter Sunk Hd. Screw
423 Set Plate
8
10
13
15
16
17
18
19
20
21
26
27
28
29
30
31
32
33
34
424 Adjusting Set Screw
425 Screw
Pan Hd. Screw
Pan Hd. Screw
Strain Relief
Tapping Screw
Ball Bearing
Armature Assembly
Fan
426 Guide Wheel
427 Guide Block
428 Flat Washer
429 Wave Washer
430 Thumbscrew
Straight Guide Assembly:
44
(440~445, 39, 40, 41)
Ball Bearing
Power Cord with Plug
Wave Washer
Cord Guard
Motor Housing
Collet Cones
Collet Nut
440 Set Screw
441 Adjusting Plate
442 Straight Guide
443 Flat Washer
444 Wave Washer
445 Thumb Nut
46
Pan Hd. Screw
Flat Washer
Knob Set
48
49
Base
Gear
101 Spanner
102 Spanner
Screw
NOTE: Some parts are listed and shown for illustration purposes only and are not available indi-
vidually as replacement parts.
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Assembly Drawing
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