ADMIRAL 57839 12-Inch Dual-Bevel Sliding Compound Miter Saw Owner’s Manual

57839 12-Inch Dual-Bevel Sliding Compound Miter Saw

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.

21e

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Note: Blade sold separately. Visit our website at: http://www.harborfreight.com Email our technical support at: productsupport@harborfreight.com

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© 2021 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.

Table of Contents

Safety ………………………………………………………………2 Specifications ……………………………………………………8 Setup ……………………………………………………………….8 Operation …………………………………………………………12

Maintenance …………………………………………………….17 Parts List and Diagram ………………………………………21 Warranty ………………………………………………………….24

SAFETY

SETUP

OPERATION

®
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.

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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.

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SAFETY

SETUP

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.
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 4 inches (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 FURVVKDQGHGLHKROGLQJWKHZRUNSLHFH 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 4 inches (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.

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SETUP

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.
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 WXUQLQJWKHWRRO21DQGZLWKQRZRUNSLHFH 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 ZKLOHEHLQJFXWFDXVLQJWKHEODGHWRELWHDQG 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.

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SAFETY

SETUP

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 3-Prong Plug and Outlet.)

OPERATION

MAINTENANCE

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SAFETY

SETUP

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.)
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

EXTENSION CORD

AMPERES

LENGTH

(at full load) 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

n0 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.

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SAFETY

SETUP

Specifications

Electrical Rating

Motor No Load Speed

Max. Accessory Diameter

Arbor Size

90° Straight

Cutting

45° Miter

Capacities 45° Straight Bevel

45° Compound (L/R)

120VAC / 60Hz / 15A n0: 4000/min Blade Diameter­12″ (Ø305mm) 5/8″ Arbor 4-1/4″ x 13-5/8″ 4-1/4″ x 9-3/4″ 2-1/4″ x 13-3/8″ 2-1/4″ x 9-3/4″

Caution: Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure.
Caution: The use of optical instruments with this product will increase eye hazard.

LASER LIGHT
DO NOT STARE INTO BEAM
Max. Output: 1 mW, Wavelength: 650 nm
CLASS IIa LASER PRODUCT This product complies with 21 CFR 1040.10 and 1040.11 Distributed by Harbor Freight Tools 26541 Agoura Road, Calabasas, CA 91302 Manufacture Date: ___, __

AVOID EXPOSURE Laser light is emitted from this opening.
57839

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.

TO PREVENT SERIOUS INJURY FROM ACCIDENTAL OPERATION: Turn the Power Switch of the tool off and unplug the tool from its electrical outlet before performing any procedure in this section.
Note: For additional information regarding the parts listed in the following pages, refer to the Assembly Diagram near the end of this manual.

Assembly
1. Insert the ends of the Table Extensions into the holes in the sides of the Base. Tighten the Table Extension Knobs to hold the Extensions in place. The upper edge of the Extensions will be level with the surface of the saw. This provides a wider base for the work material to rest on.

2. Squeeze the clip on the Dust Collection Bag to open the mouth of the Bag. Slip the Bag over the Dust Outlet behind the saw and release the clip to secure the Bag to the Outlet.

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).

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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.
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.
Guard Setup
Check that the Lower Blade Guard is in place, moves freely, and closes instantly.
Dust Extraction Setup
1. 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.

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.
3. Use only saw blades that are marked with a speed equal or higher than the speed marked on the tool.
2. Connect a dust extraction device to the Dust Outlet to use a dust collection system instead of the Dust Bag.

SETUP

OPERATION

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SAFETY

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Functions
Dust Collection
Bag Slide Lock
Knob
Clamp

Trigger Lock
Turntable

Trigger Lock
Trigger Laser
Lower Guard
Blade (sold separately)
Fence
Miter Lock Knob

Table Extension

Miter Scale

Miter Angle Indicator

Kerf Board

Bevel Lock Lever

Miter Detent Lever

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Spindle Lock
Bevel Scale

Head Lock-Down
Pin
Bevel Angle Indicator

SETUP

OPERATION

MAINTENANCE

Description of Selected Functions

Head Lock-Down Pin:

2

1

3

2

3

1

Align pin with deep groove to lock cutting head.

Align pin with shallow groove to unlock cutting head.

Guard operation: When the Handle is lowered, the Lower Guard raises automatically. When the Handle is raised the Lower 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 Lower Guard.
Slide Lock Knob: Tighten this to prevent the cutting head from sliding back and forth for chopping cuts. Loosen this to allow the cutting head to slide.
Note: Additional functions are explained elsewhere in the manual.

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SAFETY

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

TO PREVENT SERIOUS INJURY FROM ACCIDENTAL OPERATION: Turn the Power Switch of the tool off and unplug the tool from its electrical outlet before performing any procedure in this section.
TO PREVENT SERIOUS INJURY: DO NOT OPERATE WITH ANY GUARD DISABLED, DAMAGED, OR REMOVED. Moving guards must move freely and close instantly.
Installing/Replacing the Blade

Note: Replacement 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.
Lower Blade Guard

3. Loosen the Guard Plate Bolt until it disengages the Guard Plate.
4. Swing the Guard Plate up and out of the way.

SETUP

OPERATION

Guard Plate

Guard Plate Bolt

Outer Flange
Arbor Bolt

5. Press in the Spindle Lock on the back of the saws head and hold it in.
6. Remove the Arbor Bolt and Outer Flange. IMPORTANT: The Arbor Bolt has a left-handed thread and removes by turning CLOCKWISE.
Blade
Outer Flange

Arbor Bolt
Arbor Insert

Spindle
Inner Flange

Note: Make sure the Inner Flange stays in place on the Spindle.
7. Remove the used blade and Arbor Insert. Place the Arbor Insert into a new Blade and install the new Blade. Make sure that the Blades 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 in the Spindle Lock and wrench tighten the Arbor Bolt by turning it COUNTERCLOCKWISE. Release the Spindle Lock.
9. Rotate the Guard Plate back into place, and secure it with the Guard Plate Bolt.
10. WARNING! TO PREVENT SERIOUS INJURY: Make sure the Lower Blade Guard operates smoothly and properly protects from the Blade before using the Saw.

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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 Miter Lock Knob by turning it one or two turns counterclockwise.
2. Pull up on the Miter Detent Lever to unlock the Table. While holding the Detent Lever up, move the Table to the desired angle.

6. With the Table adjusted to the desired angle, place the workpiece flush against the Fence, secure it with the Clamp and make the cut.

3. The Miter Angle Indicator will indicate the selected angle. While the Miter Detent Lever is released, the table will lock into place at often used miter angles, including 15º, 22.5º, 30º, and 45º on both left and right sides.

Miter Lock Knob

4. To override the pre-set detents (stops) for micro adjustments at any angle, pull up on the Miter Detent Lever and adjust Table to any position on the miter scale.
5. Tighten the Miter Lock Knob after adjusting the miter angle.

Miter Angle Indicator

Miter Detent Lever

Adjusting the Bevel Angle

A bevel cut is one that is at an angle vertically. Bevel cuts can be used to miter 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. Lift up on the Bevel Lock Lever at the front of the saw to unlock.
2. Move the Saw Head Assembly to the desired angle. Read the angle on the Bevel Scale using the Bevel Angle Indicator.
3. Lock the Saw Head Assembly into position by pushing down on the Bevel Lock Lever. 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.
WARNING! TO PREVENT SERIOUS INJURY: Adjust both sides of the Fence clear of the Blades cutting path after making any adjustment to the cutting angle. Move the Blade through its full range of motion to ensure the Fences are clear.

Bevel Lock Lever
Bevel Scale

Bevel Angle Indicator

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Using the Depth Stop

If a kerfing or rabbet cut which does not cut through the workpiece is desired, use the Depth Stop Bolt to control the depth of the cut.

CAUTION! Only adjust the front Bolt. The rear Bolt is used to prevent the Blade from cutting the table during normal cutting. Do not adjust the rear Depth Bolt.

1. Unlock the Head Lock-Down Pin. 2. Raise the Saw Head Assembly.

Depth Stop Bolt

Depth Stop Nut

3. Push the Depth Stop to the left to use the Depth Stop Bolt setting.

4. Pull down on the Saw Head to check the current setting.

5. To change the setting, first loosen the knurled Depth Stop Nut on the Depth Stop Bolt. Turn the Depth Stop Bolt clockwise to decrease depth and counterclockwise to increase depth. Tighten the Depth Stop Nut after adjustment.

6. If needed, push the Depth Stop to the right to temporarily disable it. Make sure the Depth Stop is properly aligned to allow the Bolt to pass through it.

Depth Stop

Aligning the Fence
1. After adjusting the miter, bevel, or depth 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.

Kerf Board Replacement/Adjustment

If the Kerf Board becomes damaged it must be replaced.
1. Remove the six screws holding the Kerf Board in place.
2. Install a new Kerf Board. Replace the six screws and tighten them slightly.
To adjust the Kerf Board:
1. Lower the Saw Head Assembly and lock it in place with the Head Lock-Down Pin.

2. Adjust the Kerf Board so the right side of the Blade slightly clears the edge of the Kerf Board.
3. Lift up on the Bevel Lock Lever to unlock and set the Bevel Angle at 45º left.
4. Ensure that the left side of the Blade clears the Kerf Board.
5. Tighten the six screws holding the Kerf Board in place.

OPERATION

MAINTENANCE

Page 14

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Item 57839

SAFETY

Workpiece 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.

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.

3. Refer to cutting capacities in the Specifications Table on page 8 for limitations on workpiece size.
4. Allow room on both left and right sides of saw for extended workpieces.

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.

Using the Workpiece Extension Supports

1. The Table Extensions are inserted into each side of the Table, and locked in place using the Table Extension Knobs.
2. When properly installed, the upper face of the Table Extensions are level with the Table, and provide a wider support surface for the workpiece. Each Extension has a stop lever which can be raised to make repetitive cuts.

3. 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.
4. 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.

SETUP

OPERATION

MAINTENANCE

Item 57839

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Page 15

SAFETY

General Operating Instructions

DANGER!
MITER SAWS CAN QUICKLY AMPUTATE FINGERS IF MISUSED.
Keep hands well clear of cutting area.

1. Unlock the Head Lock-Down Pin.
2. Make sure all adjustment knobs are tight (Miter Lock Knob, Bevel Lock Lever, Fence and Table Extension Knobs).
3. Blow any sawdust or debris away from the Fence. Place the work material against the Fence.
4. 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.
5. 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.

9. Use two hands and hold workpiece securely against table and fence at all times.
10. With narrow material, 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.
11. With wide material, move the Blade across the workpiece while cutting as follows:
a. Loosen Slide Lock Knob and pull Saw Head Assembly forward.
b. Press down on the Saw Handle.
c. Push the Saw Head toward the rear to make the cut.
Do not bear down on the material–use light downward and lateral pressure. If the material binds the blade, release the Trigger.

6. SAWS CAN QUICKLY AMPUTATE FINGERS IF MISUSED. Keep hands well clear of cutting area.

7. To use the Laser Guide or LED Work Light, turn on their respective switches located on the top of the Saw Handle.

Laser ON/OFF Switch

LED Light ON/OFF Switch

1 Pull Forward 3 Push Toward Rear to Cut
Slide Lock Knob
2
Press Down
Workpiece

SETUP

OPERATION

MAINTENANCE

Trigger Lock

Trigger

Trigger Lock

8. Grip the Saw Handle, press one of the Trigger Locks with your thumb, and squeeze the Trigger to start the Saw.

Note: If the laser guide line does not line up with the cut line, release Trigger and reposition workpiece before making the cut.

12. 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.
13. To prevent accidents, turn off the tool and unplug it from its electrical outlet after use. Clean, then store the tool indoors out of children’s reach.

Page 16

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Item 57839

SAFETY

SETUP

Maintenance and Servicing
Procedures not specifically explained in this manual must be performed only by a qualified technician.

TO PREVENT SERIOUS INJURY FROM ACCIDENTAL OPERATION: Turn the Power Switch of the tool off 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 · cracked or broken parts · damaged electrical wiring · any other condition that may affect its safe operation.

2. AFTER USE, wipe external surfaces of the tool with clean cloth.
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 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 Saw Head 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 to the 0º miter position.
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. Loosen the Slide Lock Knob and push the Saw Head Assembly to its rearmost position and retighten the Knob.
3. Lower the Saw Head Assembly and lock it in place using the Head Lock-Down Pin.

4. 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.
5. The Fence is held in place with four Fence Adjusting Bolts. Loosen the bolts slightly, and gently tap the Fence into position using a soft mallet. Tighten the Bolts and make another test cut. Repeat the process until the Fence is adjusted accurately.
Fence Adjusting Bolts

OPERATION

MAINTENANCE

Item 57839

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Page 17

SAFETY

SETUP

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 adjustment screw holding the Miter Angle Indicator in place.
2. Rotate it until the pointer is exactly on 0º.
3. Retighten the screw.

Adjustment Screw

Miter Angle Indicator

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 Saw Head Assembly in its normal upright position and set to the 0º bevel position with the Bevel Stop Block in the vertical 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.
WARNING! TO PREVENT SERIOUS INJURY: Adjust both sides of the Fence clear of the Blades cutting path after making any adjustment to the cutting angle. Move the Blade through its full range of motion to ensure the Fences are clear.
4. If necessary, the 0° bevel angle can be corrected by loosening the Zero Stop Lock Nut, located to the left of the Bevel Stop Block, and adjusting the Zero Stop Screw. Tighten the Zero Stop Lock Nut after adjustment and make another test cut. Repeat the process until the 0° bevel angle is adjusted accurately.

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.

Zero Stop Lock Nut

Bevel Stop Block

Zero Stop Screw

Bevel Angle Indicator

Bevel Adjustment
Screw and Nut

6. To adjust one of the 45° bevel angle stops, loosen the Bevel Adjustment Nut and turn the Bevel Adjustment Screw clockwise to increase the degree of bevel and counterclockwise to decrease bevel. Tighten the Nut after adjustment.

OPERATION

MAINTENANCE

Page 18

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Item 57839

SAFETY

Troubleshooting

Problem

Possible Causes

Tool will not start. 1. Cord not connected.

2. No power at outlet.

Tool operates slowly.

3. Tool’s thermal reset breaker tripped (if equipped).
4. Internal damage or wear. (Carbon brushes or switch, for example.)
Extension cord too long or wire size too small.

Performance decreases over time.
Excessive noise or rattling. Overheating.

1. Accessory dull or damaged.
2. Carbon brushes worn or damaged. Internal damage or wear. (Carbon brushes or bearings, for example.) 1. Forcing machine to work too fast. 2. Accessory misaligned.

3. Accessory dull or damaged.

4. Blocked motor housing vents.

5. Motor being strained by long or small diameter extension cord.

Likely Solutions
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.
Eliminate use of extension cord. If an extension cord is needed, use one with the proper diameter for its length and load. See Table A on page 7. 1. Keep cutting accessories sharp.
Replace as needed. 2. Have qualified technician replace brushes. Have technician service tool.
1. Allow machine to work at its own rate. 2. Check and correct accessory to
fence and/or table alignment. 3. Keep cutting accessories sharp.
Replace as needed. 4. Wear ANSI-approved safety goggles and
NIOSH-approved dust mask/respirator while blowing dust out of motor using compressed air. 5. Eliminate use of extension cord. If an extension cord is needed, use one with the proper diameter for its length and load. See Table A on page 7.

Follow all safety precautions whenever diagnosing or servicing the tool. Disconnect power supply before service.

SETUP

OPERATION

MAINTENANCE

Item 57839

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Page 19

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.

SAFETY

SETUP

OPERATION

MAINTENANCE

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 193175448682 when ordering parts.

Page 20

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Item 57839

Parts List and Diagram

Parts List

Part

Description

1 Clamp Set

2 Clamp Rod

3 Clamp Lock Knob

4 Clamp Arm

5 Metal Pad

6 Ø5 Split Washer

7 Right Sliding Fence

8 Fence Lock Knob

9 Fence

10 M6x20 Bolt

11 M6x20 Bolt

12 Left Sliding Fence

13 M5x16 Bolt

14 Right Table Extension Stop Lever

15 M5 Nut

16 Right Extension Table

17 Extension Bar

18 Lock Knob

19 Base

20 Miter Scale

21 Anti-Tip Support

22 M5x18 Screw

23 Foot

24 M8x50 Bolt

25 M5x10 Bolt

26 Left Extension Table

27 Left Table Extension Stop Lever

28 M5x16 Screw

29 Bevel Lock Lever

30 Spring

31 Miter Detent Lever

32 Spring

33 M5x35 Bolt

34 Locking Rod

35 Turntable Pad

36 M6x12 Screw

37 Sleeve

38 Lock Washer

39 M6x16 Set Screw

40 Pressure Plate

41 Bevel Locking Rod

42 Screw

43 M6x16 Bolt

44 Axis

45 Ø8 Washer

46 Bevel Stop Block

47 6x12x0.8 Washer

48 Bevel Scale

49 M8x30 Bolt

50 M8 Nut

51 M8 Nut

52 Ø8 Washer

53 M4x10 Screw

54 Miter Angle Indicator

55 Table

Qty
1 1 1 1 1 1 1 2 1 6 2 1 2 1 5 1 4 2 1 1 1 1 4 1 8 1 1 7 1 1 1 1 1 1 6 8 1 3 2 1 1 1 1 1 2 1 1 1 2 3 1 1 10 1 1

Part

Description

56 Clip

57 Kerf Board

58 Miter Locking Rod

59 Ø6.3×1.8 O-Ring

60 Miter Lock Knob

61 Bevel Angle Indicator

62 Turntable Support

63 M8x25 Bolt

64 Lock Knob

65 Locking Plate

66 Ø12 Washer

67 M4x12 Screw

68 M10 Nut

69 M10 Nut

70 6×50 Cylindrical Pin

71 Slide Rail Cover

72 Wire Holder

73 St4.2×14 Tapping Screw

74 Slide Rail

75 Bearing Cover

76 Shock Pad

77 40×35 Linear Bearing

78 Slide Rail Sleeve

79 M5x20 Screw

80 Belt Cover

81 Belt

82 Large Pulley

83 M4x8 Screw

84 St4.2×14 Tapping Screw

85 Laser Cover

86 Laser Head

87 Laser Base

88 M4x6 Screw

89 Dust Board

90 LED Line Board

91 LED Cover

92 LED Set

93 Dust Board

94 LED Lens

95 M4x18 Screw

96 Dust Outlet

97 6900-2RS Bearing

98 Circlip

99 Large Gear

100 Woodruff Key

101 Output Axis

102 6904-2RS Bearing

103 Gearbox Cover

104 Spindle

105 6001-2RS Bearing

106 M6 Nut

107 M6x25 Bolt

108 M5 Nut

109 M6x10 Bolt

110 Screw

Item 57839

For technical questions, please call 1-888-866-5797.

Qty
1 1 1 1 1 1 1 1 1 1 1 5 1 1 2 1 2 7 2 2 2 3 1 4 1 1 1 8 1 1 1 1 1 1 1 1 1 1 1 3 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1
Page 21

MAINTENANCE

OPERATION

SETUP

SAFETY

SAFETY

Part

Description

111 M6x10 Screw

112 Dust Collection Bag

113 Upper Blade Guard

114 M5x8 Screw

115 Plate

116 Laser Wire Cover

117 Small Pulley

118 6x18x1.5 Washer

119 M6x12 Bolt

120 Pressure Spring

121 Pressure Plate

122 Pin

123 Lock-Down Pin

124 Torsion Spring

125 Spring Sleeve

126 Bevel Hinge

127 Depth Stop

128 Ø7 Washer

129 Screw

130 Connecting Bar Screw

131 Connecting Bar

132 M6x8 Set Screw

133 Wire Hook

134 Lock-Down Pin

135 Ø5×1.8 O-Ring Seal

136 Head Lock-Down

137 Connecting Bar

138 Connecting Sleeve

139 Screw

140 Lower Blade Guard Washer

141 Lower Blade Guard Panel

142 M4x8 Screw

143 Lower Blade Guard Coil Spring

144 Rubber Washer

145 Guard Plate

146 M5x14 Screw

147 Lower Blade Guard

148 Arbor Bolt

149 Outer Flange

Qty
1 1 1 2 1 1 1 2 2 1 1 1 1 1 2 1 1 1 1 2 1 3 1 1 1 1 1 1 1 1 1 3 1 1 1 1 1 1 1

Part

Description

150 Arbor Insert

151 Inner Flange

152 Lower Handle

153 M6x30 Screw

154 Terminal

155 Cable Clamp

156 Grommet

157 Power Cord

158 Transformer

159 Carry Handle

160 St6.3×20 Tapping Screw

161 LED Switch

162 Laser Switch

163 Upper Handle

164 Trigger

165 Trigger Spring

166 Pin

167 Trigger Lock Connector

168 Right Trigger Lock

169 Switch

170 Left Trigger Lock

171 Switch Torsion Spring

172 St4.2×18 Tapping Screw

173 Lead Wire

174 Lead Wire

175 St6.3×25 Tapping Screw

176 Motor Housing

177 Brush Holder

178 Carbon Brush

179 Brush Cap

180 Stator

181 St4.8×50 Tapping Screw

182 Baffle

183 6000-2RS Bearing

184 Rotor

185 Circlip

186 6202-2RS Bearing

187 Motor Cover

188 Hex Key

Qty
1 1 1 2 1 1 1 1 1 1 2 1 1 1 1 1 2 1 1 1 1 1 5 1 1 4 1 2 2 2 1 2 1 1 1 1 1 1 1

SETUP

OPERATION

MAINTENANCE

Page 22

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Item 57839

Assembly Diagram

SAFETY

SETUP

OPERATION

MAINTENANCE

Item 57839

For technical questions, please call 1-888-866-5797.

Page 23

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.
®
26541 Agoura Road · Calabasas, CA 91302 · 1-888-866-5797

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