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57174
7-1/4" COMPOUND
SINGLE BEVEL MITER SAW
Blade sold separately.
Owner’s Manual & Safety Instructions
Save This Manual Keep this manual for the safety warnings and precautions, assembly,
operating, inspection, maintenance and cleaning procedures. Write the product’s serial number in the
back of the manual near the assembly diagram (or month and year of purchase if product has no number).
Keep this manual and the receipt in a safe and dry place for future reference. 23f
When unpacking, make sure that the product is intact
and undamaged. If any parts are missing or broken,
please call 1‑888‑866‑5797 as soon as possible.
Copyright
©
2023 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.
Diagrams within this manual may not be drawn proportionally. Due to continuing
improvements, actual product may differ slightly from the product described herein.
Tools required for assembly and service may not be included.
Read this material before using this product.
Failure to do so can result in serious injury.
SAVE THIS MANUAL.
Page 2 For technical questions, please call 1-888-866-5797. Item 57174
SaFety OperatiOn MaintenanceSetup
table of contents
Safety ........................................................................2
Specifications ............................................................7
Setup .........................................................................8
Operation ..................................................................11
Maintenance .............................................................15
Parts List and Diagram .............................................18
Warranty ...................................................................20
WarninG SyMBOLS anD DeFinitiOnS
This is the safety alert symbol. It is used to alert you to potential
personal injury hazards. Obey all safety messages that
follow this symbol to avoid possible injury or death.
Indicates a hazardous situation which, if not avoided,
will result in death or serious injury.
Indicates a hazardous situation which, if not avoided,
could result in death or serious injury.
Indicates a hazardous situation which, if not avoided,
could result in minor or moderate injury.
Addresses practices not related to personal injury.
iMpOrtant SaFety inFOrMatiOn
General power tool Safety Warnings
read all safety warnings, instructions, illustrations and specifications provided with this power tool.
Failure to follow all instructions listed below may result in electric shock, fire and/or serious injury.
Save all warnings and instructions for future reference.
The term “power tool” in the warnings refers to your mains-operated (corded)
power tool or battery-operated (cordless) power tool.
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.
Page 3For technical questions, please call 1-888-866-5797.Item 57174
SaFetyOperatiOnMaintenance Setup
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.
f. if operating a power tool in a damp location
is unavoidable, use a ground fault circuit
interrupter (GFci) protected supply. Use of
a GFCI 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.
b. use personal protective equipment. always
wear eye protection. Protective equipment
such as dust mask, non-skid safety shoes, hard
hat, or hearing protection used for appropriate
conditions will reduce personal injuries.
c. prevent unintentional starting. ensure the
switch is in the off-position before connecting
to power source and/or battery pack, picking
up or carrying the tool. Carrying power tools
with your finger on the switch or energizing 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.
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 dust collection
can reduce dust-related hazards.
h. Do not let familiarity gained from frequent
use of tools allow you to become
complacent and ignore tool safety
principles. A careless action can cause
severe injury within a fraction of a second.
i. Only use safety equipment that has been
approved by an appropriate standards agency.
Unapproved safety equipment may not provide
adequate protection. Eye protection must be
ANSI‑approved and breathing protection
must be NIOSH‑approved for the
specific hazards in the work area.
j. Avoid unintentional starting.
Prepare to begin work before turning on the tool.
k. 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.
l. This product is not a toy.
Keep it out of reach of children.
m. 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.
• Do not use with Trigger locked on.
• Properly maintain and inspect to avoid
electrical shock.
• Properly ground power cord.
Ground Fault Circuit Interrupter (GFCI)
should also be implemented – it prevents
sustained electrical shock.
n. 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.
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.
Page 4 For technical questions, please call 1-888-866-5797. Item 57174
SaFety OperatiOn MaintenanceSetup
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 and/or remove the battery pack,
if detachable, from the power tool 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 and accessories.
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.
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,
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.
h. Keep handles and grasping surfaces
dry, clean and free from oil and grease.
Slippery handles and grasping surfaces
do not allow for safe handling and control
of the tool in unexpected situations.
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.
b. Maintain labels and nameplates on the tool.
These carry important safety information.
If unreadable or missing, contact
Harbor Freight Tools for a replacement.
6. Safety instructions for mitre saws
a. Mitre saws are intended to cut wood or
wood-like products, they cannot be used
with abrasive cut-off wheels for cutting
ferrous material such as bars, rods, studs,
etc. Abrasive dust causes moving parts
such as the lower guard to jam. Sparks from
abrasive cutting will burn the lower guard,
the kerf insert and other plastic parts.
b. use clamps to support the workpiece
whenever possible. if supporting the
workpiece by hand, you must always keep
your hand at least 100 mm from either side
of the saw blade. Do not use this saw to
cut pieces that are too small to be securely
clamped or held by hand. If your hand is
placed too close to the saw blade, there is an
increased risk of injury from blade contact.
c. the workpiece must be stationary and
clamped or held against both the fence
and the table. Do not feed the workpiece
into the blade or cut ″freehand″ in any way.
Unrestrained or moving workpieces could
be thrown at high speeds, causing injury.
d. push the saw through the workpiece. Do
not pull the saw through the workpiece. to
make a cut, raise the saw head and pull it out
over the workpiece without cutting, start the
motor, press the saw head down and push
the saw through the workpiece. Cutting on
the pull stroke is likely to cause the saw blade
to climb on top of the workpiece and violently
throw the blade assembly towards the operator.
e. never cross your hand over the intended
line of cutting either in front or behind
the saw blade. Supporting the workpiece
″cross handed″ i.e. holding the workpiece
to the right of the saw blade with your left
hand or vice versa is very dangerous.
f. Do not reach behind the fence with either
hand closer than 100 mm from either
side of the saw blade, to remove wood
scraps, or for any other reason while
the blade is spinning. The proximity of the
spinning saw blade to your hand may not be
obvious and you may be seriously injured.
g. inspect your workpiece before cutting. if the
workpiece is bowed or warped, clamp it with
the outside bowed face toward the fence.
always make certain that there is no gap
between the workpiece, fence and table along
the line of the cut. Bent or warped workpieces
can twist or shift and may cause binding on the
spinning saw blade while cutting. There should
be no nails or foreign objects in the workpiece.
h. Do not use the saw until the table is clear
of all tools, wood scraps, etc., except for
the workpiece. Small debris or loose pieces
of wood or other objects that contact the
revolving blade can be thrown with high speed.
i. cut only one workpiece at a time.
Stacked multiple workpieces cannot be
adequately clamped or braced and may
bind on the blade or shift during cutting.
j. ensure the mitre saw is mounted or placed
on a level, firm work surface before use.
A level and firm work surface reduces the
risk of the mitre saw becoming unstable.
Page 5For technical questions, please call 1-888-866-5797.Item 57174
SaFetyOperatiOnMaintenance Setup
k. plan your work. every time you change the
bevel or mitre angle setting, make sure the
adjustable fence is set correctly to support
the workpiece and will not interfere with
the blade or the guarding system. Without
turning the tool ″ON″ and with no workpiece
on the table, move the saw blade through a
complete simulated cut to assure there will be
no interference or danger of cutting the fence.
l. provide adequate support such as table
extensions, saw horses, etc. for a workpiece
that is wider or longer than the table top.
Workpieces longer or wider than the mitre saw
table can tip if not securely supported. If the
cut-off piece or workpiece tips, it can lift the
lower guard or be thrown by the spinning blade.
m. Do not use another person as a substitute
for a table extension or as additional
support. Unstable support for the workpiece
can cause the blade to bind or the workpiece
to shift during the cutting operation pulling
you and the helper into the spinning blade.
n. the cut-off piece must not be jammed or
pressed by any means against the spinning
saw blade. If confined, i.e. using length
stops, the cut-off piece could get wedged
against them blade and thrown violently.
o. always use a clamp or a fixture designed
to properly support round material such as
rods or tubing. Rods have a tendency to roll
while being cut, causing the blade to ″bite″ and
pull the work with your hand into the blade.
p. Let the blade reach full speed before
contacting the workpiece. This will reduce
the risk of the workpiece being thrown.
q. if the workpiece or blade becomes jammed,
turn the mitre saw off. Wait for all moving
parts to stop and disconnect the plug
from the power source and/or remove
the battery pack. then work to free the
jammed material. Continued sawing with
a jammed workpiece could cause loss of
control or damage to the .mitre saw.
r. after finishing the cut, release the switch,
hold the saw head down and wait for
the blade to stop before removing the
cut-off piece. Reaching with your hand
near the coasting blade is dangerous.
s. Hold the handle firmly when making an
incomplete cut or when releasing the switch
before the saw head is completely in the
down position. The braking action of the
saw may cause the saw head to be suddenly
pulled downward, causing a risk of injury.
7. Vibration Safety
This tool vibrates during use.
Repeated or long‑term exposure to vibration may
cause temporary or permanent physical injury,
particularly to the hands, arms and shoulders.
To reduce the risk of vibration‑related injury:
a. 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,
nervous system disorders, diabetes, or
Raynaud’s Disease should not use this tool.
If you feel any symptoms related to
vibration (such as tingling, numbness,
and white or blue fingers), seek medical
advice as soon as possible.
b. Do not smoke during use. Nicotine reduces
the blood supply to the hands and fingers,
increasing the risk of vibration‑related injury.
c. Wear suitable gloves to reduce the
vibration effects on the user.
d. Use tools with the lowest vibration
when there is a choice.
e. Include vibration‑free periods each day of work.
f. Grip tool as lightly as possible (while still keeping
safe control of it). Let the tool do the work.
g. To reduce vibration, maintain the tool as
explained in this manual. If any abnormal
vibration occurs, stop use immediately.
Page 6 For technical questions, please call 1-888-866-5797. Item 57174
SaFety OperatiOn MaintenanceSetup
Grounding
tO preVent eLectric SHOcK 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.
Grounded tools: tools with three prong plugs
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.)
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.)
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.)
Double insulated tools: tools with two prong plugs
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.
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.)
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.)
3. 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 table a.)
4. 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.)
Page 7For technical questions, please call 1-888-866-5797.Item 57174
SaFetyOperatiOnMaintenance Setup
5. 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.)
6. 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.
7. 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.
8. Protect the extension cords from sharp objects,
excessive heat, and damp or wet areas.
taBLe a: recOMMenDeD MiniMuM Wire
GauGe FOr eXtenSiOn cOrDS* (120/240 VOLt)
naMepLate
aMpereS
(at full load)
eXtenSiOn cOrD
LenGtH
25´ 50´ 75´ 100´ 150´
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 ‑ ‑ ‑
* Based on limiting the line voltage drop to five volts at
150% of the rated amperes.
Symbology
Double Insulated
V
Volts
~
Alternating Current
a
Amperes
n
0
xxxx/min.
No Load Revolutions per Minute (RPM)
WARNING marking concerning Risk
of Eye Injury. Wear ANSI‑approved
safety goggles with side shields.
Read the manual before
set‑up and/or use.
WARNING marking
concerning Risk of Fire.
Do not cover ventilation ducts.
Keep flammable objects away.
WARNING marking concerning
Risk of Electric Shock.
Properly connect power cord
to appropriate outlet.
Specifications
Electrical Rating 120 VAC / 60 Hz / 9.5 A
Rated No Load Speed 5200 RPM
Cutting Capacity at 0° 2" x 4‑5/16"
Cutting Capacity at 45° Miter 2" x 3‑1/8"
Maximum Bevel 45° Left
Maximum Miter 47° Left and Right
Saw Blade
7‑1/4" Diameter
5/8" Round Arbor
5200 Minimum RPM Rating
Page 8 For technical questions, please call 1-888-866-5797. Item 57174
SaFety OperatiOn MaintenanceSetup
Setup - Before use:
read the entire iMpOrtant SaFety inFOrMatiOn section at the beginning of this
manual including all text under subheadings therein before set up or use of this product.
note: For additional information regarding the parts listed in the
following pages, refer to Parts List and Diagram on page 18.
Mounting
1. Use the four bolt holes provided in the Base
to mount the Miter Saw to a stable support
before use. Mounting hardware not included.
2. Ensure that the miter saw is always stable
and secure (e.g. fixed to a bench).
assembly
1. Squeeze the Spring Clip on the Dust Bag to open
the mouth of the Bag. Slip the Bag over the
Dust Outlet at the rear of the Saw Head Assembly
and release the Clip to secure the Bag to the Outlet.
2. If adjustable and/or removable workpiece
support extension(s) are provided, always fix
and use these extension(s) during operation.
Functions
Bevel angle
indicator
Fence
Sliding
Fence
trigger
Lock
trigger
Handle
clamp
Miter Scale
Base
Kerf Board
Miter angle
indicator
Page 9For technical questions, please call 1-888-866-5797.Item 57174
SaFetyOperatiOnMaintenance Setup
Bevel
Lock
Lever
Head
Lockdown
pin
Dust Bag
Dust Outlet
Blade
Blade Guard
table
Fence
Lock
Knob
table
Lock
Knob
Description of Selected Functions
Blade Guard operation:
When the cutting head is lowered, the Blade Guard
raises automatically. When the cutting head is raised the
Blade Guard returns to its safety position. Keep hands
clear of the Blade when the Handle is lowered. Do not
interfere with the proper movement of the Blade Guard.
note: Additional functions are explained
elsewhere in the manual.
Page 10 For technical questions, please call 1-888-866-5797. Item 57174
SaFety OperatiOn MaintenanceSetup
Work area
1. Designate a work area that is clean and well lit.
The work area must not allow access by children
or pets to prevent distraction and injury.
2. There must not be objects, such as utility lines,
nearby that will present a hazard while working.
3. Route the power cord along a safe route to reach
the work area without creating a tripping hazard or
exposing the power cord to possible damage. The
power cord must reach the work area with enough
extra length to allow free movement while working.
Saw Blade Selection
1. Any saw blade that will be used must be
marked as suitable for the material to be cut.
2. Use only a saw blade diameter in
accordance with the markings on the saw.
See specification table for the bore diameter
and the maximum kerf of the saw blade.
3. Use only saw blades that are marked with a speed
equal or higher than the speed marked on the tool.
Guard Setup
Check that the Lower Blade Guard is in place,
moves freely, and closes instantly.
Dust extraction Setup
To use the Dust Collection Bag, slide the Bag
over the Dust Outlet at the rear of the Saw Head
Assembly. Refer to Assembly on page 8.
Page 11For technical questions, please call 1-888-866-5797.Item 57174
SaFetyOperatiOnMaintenance Setup
Operating instructions
read the entire iMpOrtant SaFety inFOrMatiOn section at the beginning of this
manual including all text under subheadings therein before set up or use of this product.
tool changing
note: Blade sold separately.
1. Unplug the tool from its power source.
2. Raise the Lower Blade Guard out
of the way and hold it up.
3. Loosen the Guard Plate Bolt until it
disengages the Guard Plate.
4. Swing the Guard Plate up and out of the way.
Lower Blade
Guard
Guard Guard
plateplate
arbor arbor
BoltBolt
Outer Outer
FlangeFlange
Hex Hex
KeyKey
Flange Flange
Wrench Wrench
Guard Guard
plate Boltplate Bolt
Figure a
5. Insert the two prongs of the supplied Flange Wrench
into the two holes in the Outer Flange. Hold the
Outer Flange in place and use the supplied Hex Key
to loosen the Arbor Bolt by turning cLOcKWiSe.
iMpOrtant: the arbor Bolt has a left-handed
thread and removes by turning cLOcKWiSe.
6. Remove the Arbor Bolt and
Outer Flange. Refer to Figure B.
note: Make sure the Inner Flange
stays in place on the Spindle.
Outer
Flange
inner
Flange
Spindle
Blade
arbor
Bolt
Figure B
7. Remove the used blade. Install the new Blade.
Make sure that the Blade′s rotation arrow
points in the same direction as the rotation
arrow on the upper Blade Guard.
8. Replace the Outer Flange and Arbor Bolt.
Position the cupped side of the Flange against
the Blade. Hold the Outer Flange with the Flange
Wrench and tighten the Arbor Bolt with the Hex
Key by turning it cOuntercLOcKWiSe.
9. Rotate the Guard Plate back into place and
secure it with the Guard Plate Bolt.
10. Move the Lower Blade Guard back into place.
11. WarninG! tO preVent SeriOuS
inJury: Make sure the Lower Blade Guard
operates smoothly and properly protects
from the Blade before using the Saw.
Page 12 For technical questions, please call 1-888-866-5797. Item 57174
SaFety OperatiOn MaintenanceSetup
Setting and testing
tO preVent SeriOuS inJury FrOM acciDentaL OperatiOn:
Make sure that the trigger is in the off-position and unplug the tool from its
electrical outlet before performing any procedure in this section.
adjusting the Miter angle
A miter cut is one that is at an angle across the horizontal surface of the material. 45º miter cuts to join two
pieces in a right angle corner are common. A 30º cut is often used for a scarf joint or to make a chamfered end.
1. Loosen the Table Lock Knob by
turning it counterclockwise.
2. Lower the Saw Head Assembly and lock it
down with the Head Lockdown Pin. Using the
Handle, move the Table to the desired angle.
3. The Miter Angle Indicator will indicate the
selected angle. The Miter Scale displays
often used miter angles, including 15º, 22.5º,
30º, and 45º on both left and right sides.
4. Tighten the Table Lock Knob after adjusting
the miter angle. Release the Head Lockdown
Pin and raise the Saw Head Assembly.
5. With the Table adjusted to the desired angle,
place the workpiece flush against the Fence,
secure it with the Clamp and make the cut.
adjusting the Bevel angle
A bevel cut is one that is at an angle vertically. Bevel cuts can be used to cut a miter in relatively wide
and thin material. Bevel cuts can be used in combination with a miter cut to form a compound angle.
Compound angle cuts are often used in crown moldings, picture frames and similar trim materials.
1. Loosen the Bevel Lock Knob
at the rear of the saw.
2. Move the Saw Head Assembly to the desired angle.
Read the angle on the Bevel Angle Indicator.
3. Lock the Saw Head Assembly into position
by rotating the Bevel Lock Knob clockwise.
Tighten firmly but do not over‑tighten.
4. Make a sample cut in a piece of scrap to
confirm that the bevel angle is correct.
If it is not, correct the angle before cutting.
Bevel Lock
Knob
Bevel
angle
indicator
Figure c
aligning the Fence
1. After adjusting the miter or bevel setting, check and
adjust the Sliding Fence.
2. Loosen the Fence Lock Knob, and move the
Sliding Fence to be within 1/8" of the blade.
3. Tighten the Fence Lock Knob. Make sure that the
Sliding Fence still does not contact the Blade.
Fence Lock
Knob
Sliding Sliding
FenceFence
Figure D
Page 13For technical questions, please call 1-888-866-5797.Item 57174
SaFetyOperatiOnMaintenance Setup
Kerf Board replacement / adjustment
If the Kerf Board becomes damaged it must be replaced.
1. Remove the four screws holding
the Kerf Board in place.
2. Install a new Kerf Board. Replace the
four screws and tighten them slightly.
to adjust the Kerf Board:
1. Lower the blade assembly and lock it
down with the Head Lockdown Pin.
2. Adjust the Kerf Board so the right side of the
Blade slightly clears the edge of the Kerf Board.
3. Check for blade clearance by moving the Saw
Head through its full range of motion with the bevel
angle set at 0 º and at maximum left bevel angle.
Refer to Adjusting the Bevel Angle on page 12.
4. If the Saw Blade hits the Kerf Board, loosen
the four screws and adjust. Tighten the screws
and check again for blade clearance.
5. After verifying blade clearance, tighten the four
screws holding the Kerf Board in place.
Workpiece and Work area Set up
1. Secure loose workpieces using a vise or clamps
(not included) to prevent movement while working.
2. Cut only the following materials:
Dimensional lumber, plywood, particle board, plastic.
note: Use caution to avoid overheating the cutting tips.
If cutting plastic, cut at an even pace to avoid melting it.
3. Refer to cutting capacities in the Specifications Table
on page 7 for limitations on workpiece size.
4. Allow room on both left and right sides
of saw for extended workpieces.
5. Use additional supports if needed to ensure
the stability of the workpiece. Mount the Saw
so that the surface is level to the ground, and
additional supports to provide a surface on the
same level as the saw table. If the work surface
and any workpiece supports are not level, and
on the same level, unwanted bevel angles will
appear in the cuts resulting in poor joinery.
6. Secure workpieces to the saw table using the Clamp
or other clamping devices (not included). Securing
the workpiece will provide safety by preventing kick
back and by removing the need to hold workpieces
near the blade by hand. Clamping the workpiece
will also improve cutting accuracy by preventing the
workpiece from moving during the cutting operation.
Workpiece Support
1. Support the workpiece to be level with the table,
and so that after the cut is made the cut off pieces
will not fall. Use sawhorses or other supports
(not included) to support longer workpieces.
2. If the workpiece is not level, you will make
an unintentional bevel cut in the material.
If the workpiece is not supported, it will bind
the blade and may cause the material to
kick back, potentially causing injury.
Page 14 For technical questions, please call 1-888-866-5797. Item 57174
SaFety OperatiOn MaintenanceSetup
General instructions for use
1. Make sure that the Trigger is in the
off‑position, then plug in the tool.
Miter Saw cutting procedure
2. Unlock the Head Lock‑Down Pin.
3. Check that all adjustment knobs are tight (Table
Lock Knob, Bevel Lock Knob, Fence Lock Knob).
4. Blow any sawdust or debris away from the Fence.
Place the work material against the Fence.
5. Align the marked location of the cut on the
work material with the Saw Blade.
note: To prevent your workpiece from being
cut too short, align the edge of the blade
with the measured mark, keeping the rest of
the blade on the waste side of the cut.
6. Hold the work material in place using the Clamp.
Ensure that the work material is level and supported
securely. Use saw horses or supports if necessary.
DanGer! Saws can quickly
amputate fingers if misused.
Keep hands well clear of cutting area.
7. Grip the Saw Handle, press the Trigger
Lock with your thumb, and squeeze
the Trigger to start the Saw.
8. Use two hands and hold workpiece securely
against table and fence at all times.
9. Press down lightly to cut the workpiece.
Press straight down, “chopping” the material.
Do not bear down on the material — use
light downward pressure. If the material
binds the blade, release the Trigger.
10. When the cut is completed, raise the Saw
Head, release the Trigger, wait for the Blade
to stop turning, release the Clamp and
remove the workpiece from the Saw.
11. To prevent accidents, turn off the tool and
unplug it after use. Clean, then store the
tool indoors out of children’s reach.
12. Lock the Saw Head down and lock all other
adjustments before moving the Saw. Use the
handle cut outs on each side of the Base to
lift and support the Saw while moving it.
Page 15For technical questions, please call 1-888-866-5797.Item 57174
SaFetyOperatiOnMaintenance Setup
Maintenance and Servicing instructions
procedures not specifically explained in this manual must
be performed only by a qualified technician.
tO preVent SeriOuS inJury FrOM acciDentaL OperatiOn:
Make sure that the trigger is in the off-position and unplug the tool from its
electrical outlet before performing any procedure in this section.
tO preVent SeriOuS inJury FrOM tOOL FaiLure:
Do not use damaged equipment. if abnormal noise or vibration
occurs, have the problem corrected before further use.
cleaning, Maintenance, and Lubrication
1. BeFOre eacH uSe, inspect the general
condition of the tool. Check for:
• loose hardware
• misalignment or binding of moving parts
• damaged cord/electrical wiring
• cracked or broken parts
• any other condition that may
affect its safe operation.
2. aFter uSe, wipe external surfaces of the tool with
clean cloth. Carefully clean the dust collection chute
and the area around the Lower Blade Guard. Check
that the Lower Blade Guard moves smoothly through
its entire range of movement, without sticking.
3. Periodically, wear ANSI‑approved
safety goggles and NIOSH‑approved
breathing protection and blow dust out of
the motor vents using dry compressed air.
4. WarninG! tO preVent SeriOuS
inJury: if the plug or the supply cord of this
power tool is damaged, it must be replaced
only by a qualified service technician.
checking and calibrating the Fence
The Fence holds the workpiece in a fixed position
while the Table and/or the blade assembly
are adjusted in a miter or bevel angle.
To make accurate cuts, the Fence must be
perpendicular (at a 90º angle) to the Saw Blade.
1. Before beginning work, make a test cut on
scrap material with the Table set at 0º.
2. Check the cut with an accurate square.
You can also reverse the two pieces, hold
the cut ends together, and hold a good
straight edge along the side of the pieces.
3. If either test reveals that the cut is not a true 90º
angle, adjust the Fence before beginning work.
if Fence needs adjustment:
1. First unplug the tool.
2. Lower the blade assembly and lock it in
place using the Head Lockdown Pin.
3. Lay a carpenter’s square on the Table with one
edge along the Blade and the other along the
Fence. Any inaccuracy should be visible.
nOte: The square must contact the surface of the
Blade, not the teeth, for an accurate reading.
4. The Fence is held in place with bolts at each
end. Loosen the bolts slightly, and gently tap the
Fence into position using a soft mallet. Retighten
the bolts and make another test cut. Repeat the
process until the Fence is adjusted accurately.
5. Once the Fence is accurately adjusted,
tighten the bolts firmly in place. Recheck
one last time, then proceed to work.
Page 16 For technical questions, please call 1-888-866-5797. Item 57174
SaFety OperatiOn MaintenanceSetup
calibrating the Miter angle indicator
After checking or adjusting the Fence to
confirm that it is at 90º to the Blade, check
the accuracy of the Miter Angle Indicator.
1. Loosen the screw holding the
Angle Indicator in place.
2. Rotate it until the pointer is exactly on 90º.
3. Retighten the screw.
calibrating the Bevel angle
For making accurate cuts, the Saw Blade must
be adjusted to be exactly vertical to the Table.
1. To check the angle, have the blade assembly
in its normal upright position. Make a cut on a
piece of flat sided, fairly thick scrap material.
2. Check the cut with an accurate square.
The cut should be at exactly 90º.
3. Angle can also be checked by rotating one cut‑off
piece 180º and holding the cut ends together.
If the cut is not exactly vertical, the two
pieces will form a slight angle.
4. If necessary, the bevel angle can be corrected
by adjusting the adjustment screw on the
right side near the Bevel Lock Knob.
5. Once the bevel angle is adjusted, adjust the Bevel
Angle Indicator to read 0º when the Saw Blade is
in the vertical position. Loosen the screw holding
the Indicator in place, adjust it to be exactly
over the 0º mark, then retighten the screw.
troubleshooting
problem possible causes Likely Solutions
Tool will not start. 1. Cord not connected.
2. No power at outlet.
3. Tool’s thermal reset breaker
tripped (if equipped).
4. Internal damage or wear.
(Carbon brushes or
Trigger, for example.)
1. Check that cord is plugged in.
2. Check power at outlet. If outlet is unpowered,
turn off tool and check circuit breaker.
If breaker is tripped, make sure circuit is right
capacity for tool and circuit has no other loads.
3. Turn off tool and allow to cool.
Press reset button on tool.
4. Have technician service tool.
Tool operates slowly. 1. Forcing tool to work too fast.
2. Extension cord too long or cord
diameter too small.
1. Allow tool to work at its own rate.
2. Eliminate use of extension cord. If an extension
cord is needed, use one with the proper diameter
for its length and load. See Extension Cords
in Grounding section on page 6.
Performance
decreases over time.
Carbon brushes worn
or damaged.
Have qualified technician replace brushes.
Excessive noise
or rattling.
Internal damage or wear. (Carbon
brushes or bearings, for example.)
Have technician service tool.
Overheating. 1. Forcing tool to work too fast.
2. Blocked motor housing vents.
3. Motor being strained by long or
small diameter extension cord.
1. Allow tool to work at its own rate.
2. Wear ANSI‑approved safety goggles and
NIOSH‑approved dust mask/respirator while
blowing dust out of motor using compressed air.
3. Eliminate use of extension cord. If an extension
cord is needed, use one with the proper diameter
for its length and load. See Extension Cords
in Grounding section on page 6.
Follow all safety precautions whenever diagnosing or servicing the tool.
Disconnect power supply before service.
Page 17For technical questions, please call 1-888-866-5797.Item 57174
SaFetyOperatiOnMaintenance Setup
pLeaSe reaD tHe FOLLOWinG careFuLLy
THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS LIST AND ASSEMBLY DIAGRAM
IN THIS MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER OR DISTRIBUTOR
MAKES ANY REPRESENTATION OR WARRANTY OF ANY KIND TO THE BUYER THAT HE OR SHE IS
QUALIFIED TO MAKE ANY REPAIRS TO THE PRODUCT, OR THAT HE OR SHE IS QUALIFIED TO REPLACE
ANY PARTS OF THE PRODUCT. IN FACT, THE MANUFACTURER AND/OR DISTRIBUTOR EXPRESSLY
STATES THAT 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 PARTS
THERETO, OR ARISING OUT OF HIS OR HER INSTALLATION OF REPLACEMENT PARTS THERETO.
record product’s Serial number Here:
note: if product has no serial number, record month and year of purchase instead.
note: Some parts are listed and shown for illustration purposes only, and are not available
individually as replacement parts. Specify UPC 193175504302 when ordering parts.
Page 18 For technical questions, please call 1-888-866-5797. Item 57174
SaFety OperatiOn MaintenanceSetup
parts List and Diagram
parts List
part Description
1 Washer
2 Shield Roller
3 Connecting Rod Screw
4 Connecting Rod
5 Nut M5
6 Lower Blade Guard
7 Plum Screw
8 Shield Coil Spring
9 Guard Plate
10 M5 x 12 Screw
11 M5 x 10 Screw
12 Power Cord
13 Power Cord Sheath
14 St4.2 x 14 Screw
15 M5 x 40 Screw
16 Upper Handle
17 Trigger
18 Self‑Locking Spring
19 Microswitch Spring
20 Trigger Lock
21 Microswitch
24 Power Cord Clamp
25 Lower Handle
26 Roller Bearing Hk081210
27 Large Gear
28 Elastic Retainer Type A 32
29 Bearing 6002
30 Front Cover
31 Spindle
32 M5 x 16 Screw Set
33 Inner Flange
34 Blade
35 Outer Flange
36 Arbor Bolt
37 Cross Pin
38 Torsion Spring
39 Dusting Collection
40 Upper Blade Guard
41 Windshield
42 Bearing 609
43 Rotor Assembly
44 Bolt 4.2 x 50
45 Stator Assembly
46 Motor Housing
47 Carbon Brush Cover
48 Carbon Brush
part Description
49 Carbon Brush Holder
50 M5 x 45 Bolt Set
51 Clamp Knob Assembly
52 Clamp Rod
53 Knob
54 Clamp Bracket
55 Clamping Plate
56 Split Washer 5
57 Fence
58 Disc Lock Friction Pad
59 M6 x 25 Screw Set
60 M6 x 12 Screw
61 Fence Knob
62 Sllding Fence
63 Steel Ball 8
64 Spring
65 M10 x 20 Screw
66 Base
67 Rubber Foot
68 M8 x 30 Screw
69 M6 x 16 Screw
70 Friction Pad
71 Table
72 Miter Angle Indicator
73 M4 x 10 Screw Set
74 Kerf Board
75 M4 x 8 Screw
76 Nut M8
77 Washer 8 x 22 x 2
78 Bevel Scale
79 Shaft
80 Bevel Angle Indicator
81 M6 x 10 Screw
82 Pivot
83 Washer 10
84 Nut M10
85 Bevel Lock Knob
86 Screw
87 Nut M6
88 O‑Ring Φ5 x Ø1.8
89 M6 x 35 Screw
90 Pin
91 M6 x 25 Bolt
92 Dust Bag
93 Hex Key
94 Flange Wrench
Page 19For technical questions, please call 1-888-866-5797.Item 57174
SaFetyOperatiOnMaintenance Setup
assembly Diagram
26677 agoura road • calabasas, ca 91302 • 1-888-866-5797
Limited 90 Day Warranty
Harbor Freight Tools Co. makes every effort to assure that its products meet high quality and durability standards,
and warrants to the original purchaser that this product is free from defects in materials and workmanship for the
period of 90 days from the date of purchase. This warranty does not apply to damage due directly or indirectly,
to misuse, abuse, negligence or accidents, repairs or alterations outside our facilities, criminal activity, improper
installation, normal wear and tear, or to lack of maintenance. We shall in no event be liable for death, injuries
to persons or property, or for incidental, contingent, special or consequential damages arising from the use of
our product. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the
above limitation of exclusion may not apply to you. THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER
WARRANTIES, EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS.
To take advantage of this warranty, the product or part must be returned to us with transportation charges
prepaid. Proof of purchase date and an explanation of the complaint must accompany the merchandise.
If our inspection verifies the defect, we will either repair or replace the product at our election or we may
elect to refund the purchase price if we cannot readily and quickly provide you with a replacement. We will
return repaired products at our expense, but if we determine there is no defect, or that the defect resulted
from causes not within the scope of our warranty, then you must bear the cost of returning the product.
This warranty gives you specific legal rights and you may also have other rights which vary from state to state.
