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

Item 57921 

        

SAFET

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2. 

Electrical safety

a. 

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.

b. 

Do not expose power tools to rain or wet 

conditions. 

Water entering a power tool 

will increase 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.  Do not leave the tool unattended when the 

Battery Pack is connected.  Turn off the tool, 

and remove the Battery Pack before leaving.

k.  This product is not a toy.  

Keep it out of reach of children.

l.  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.

m. 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.

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.

Summary of Contents for 57921

Page 1: ...a safe and dry place for future reference 21l 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 Frei...

Page 2: ... 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 ter...

Page 3: ...rotection must be NIOSH approved for the specific hazards in the work area j Do not leave the tool unattended when the Battery Pack is connected Turn off the tool and remove the Battery Pack before leaving k This product is not a toy Keep it out of reach of children l People with pacemakers should consult their physician s before use Electromagnetic fields in close proximity to heart pacemaker cou...

Page 4: ...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 n...

Page 5: ... If contact accidentally occurs flush with water If liquid contacts eyes additionally seek medical help Liquid ejected from the battery may cause irritation or burns g Do not use a battery pack or power tool that is damaged or modified Damaged or modified batteries may exhibit unpredictable behavior resulting in fire explosion or risk of injury h Do not expose a battery pack or power tool to fire ...

Page 6: ...lood 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...

Page 7: ...er outlet installed by a qualified electrician Extension Cords Note Extension cords must not be used with this item s Charger Symbology V Volts Direct 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 no...

Page 8: ... 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 metal c...

Page 9: ... separately Functions Dust Bag Slide Bar Adjustment Knob Clamp Safety Lock Button Spindle Lock Motor Lower Blade Guard Fence Miter Scale Miter Scale Pointer Miter Detent Lever Miter Lock Knob Miter Table Base Depth Stop Bevel Scale Trigger Handle Bevel Lock Knob Battery Battery Release Button Upper Blade Guard Kerf Board Slide Lock Knob Guide System Power Switch Wrench Detent Override Head Lock Do...

Page 10: ... 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 1 T...

Page 11: ...Bolt Spindle Lock 6 Remove the Arbor Bolt Flat Washer and Outer Flange IMPORTANT The Arbor Bolt has a left handed thread and removes by turning CLOCKWISE Arbor Bolt Washer Outer Flange Spindle Blade Note Make sure the Inner Flange stays in place on the Spindle 7 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 Gua...

Page 12: ...Tighten the Miter Lock Knob after adjusting the miter angle 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 miter relatively wide and thin material Bevel cuts can be used in combination with a miter cut to form a ...

Page 13: ...en cutting 1 Press the Power Switch located above the Battery Pack to activate the Guide System Blade Guide Power Switch 2 Lower the Saw Head Assembly so that the blade is 1 4 inches from the workpiece The shadow of the blade will appear on the workpiece showing where the blade teeth will make contact as the cut is made Workpiece Set Up 1 Secure loose workpieces using a vise or clamps not included...

Page 14: ...ial 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 8 Grip the Saw Handle press the Trigger Lock Button with your thumb and squeeze the Trigger to start the Saw 9 Use two hands and hold workpiece securely against table and fence at...

Page 15: ...ERLY Do not short incinerate or open battery 5 Disconnect battery pack and store battery pack charger and tool in dry indoor area out of reach of children and away from metal objects i e paperclips coins to prevent shorting 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...

Page 16: ...to the left loosen the Lock Nut on the 0 Bevel Angle Adjustment Bolt and adjust the Bolt in or out with a hex key to increase or decrease the bevel angle 7 Tilt the Saw Head back to the right at 0 bevel and recheck for alignment 8 After alignment is achieved tighten the Bevel Lock Knob and Adjustment Bolt Lock Nut 0 Bevel Angle Adjustment Bolt Framing Square Blade WARNING TO PREVENT SERIOUS INJURY...

Page 17: ...tery Pack burnt out 4 Internal damage or wear Trigger for example 1 Remove Battery Pack make sure there are no obstructions reinsert the Battery Pack according to its shape it should only fit one way and press firmly until the Battery Pack locks in place 2 Make sure Charger is connected and operating properly Give enough time for Battery Pack to recharge properly 3 Dispose of old Battery Pack prop...

Page 18: ...45 Elastic Pin 4 46 Cushion 2 47 Slide Bar 2 48 Wool Felt 4 49 Bearing End Cover 1 50 Linear Bearing 3 51 Bearing Bush 2 52 Slide Lock Knob 1 53 Spring 1 Part Description Qty 54 Bevel Pointer 1 55 Bearing End Cover 1 56 Cross Sunk Head Screw 5 57 Kerf Board 1 58 Hex Bolt 1 59 Bevel Scale Label 1 60 Miter Pointer 1 61 Miter Table 1 62 Pin 1 63 Miter Lock Knob 1 64 Handle Cap 1 65 Dust Collection Pl...

Page 19: ...Page 19 For technical questions please call 1 888 866 5797 Item 57921 SAFETY OPERATION MAINTENANCE SETUP Assembly Diagram ...

Page 20: ...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 lim...

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