18V CIRCULAR SAW
93827
ASSEMBLY AND OPERATING INSTRUCTIONS
Due to continuing improvements, actual product may differ slightly from the product described herein.
®
3491 Mission Oaks Blvd., Camarillo, CA 93011
TO PREVENT SERIOUS INJURY,
READ AND UNDERSTAND ALL WARNINGS
AND INSTRUCTIONS BEFORE USE.
©
®
Copyright 2005 by Harbor FreightTools . All rights reserved. No portion of this manual or
any artwork contained herein may be reproduced in any shape or form without the express
written consent of Harbor FreightTools.
For technical questions and replacement parts, please call 1-800-444-3353.
PRODUCT SPECIFICATIONS
Item
Description
Input: 120 VAC / 60 Hz
Output: 24 VDC, 400 mA
AC Charger Adapter
Charge Time: 3 to 5 Hours; 8 Hour Initial Charge
53/8" Dia., 3/8" Arbor Blade; 0-2,500 No Load RPM; Safety Trigger;
Adjustable Table with Fence
Circular Saw
Accessories
1 Rechargeable 18 VDC Battery; Battery Charger/ Adapter
SaveThis Manual
You will need this manual for the safety warnings and precautions, assembly,
operating, inspection, maintenance and cleaning procedures, parts list and assembly
diagram. Keep your invoice with this manual. Write the invoice number on the inside
of the front cover. Keep this manual and invoice in a safe and dry place for future
reference.
GENERAL SAFETY RULES
WARNING!
READ AND UNDERSTAND ALL INSTRUCTIONS
Failure to follow all instructions listed below may result in
electric shock, fire, and/or serious injury.
SAVE THESE INSTRUCTIONS
Work Area
1.
2.
Keep your work area clean and well lit. Cluttered benches and dark areas invite
accidents.
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.
SKU 93827
For technical questions, please call 1-800-444-3353.
Page 3
3.
4.
5.
6.
Keep bystanders, children, and visitors away while operating a power tool.
Distractions can cause you to lose control. Protect others in the work area from
debris such as chips and sparks. Provide barriers or shields as needed. Do not
allow children to handle or play with these products.
Electrical Safety
Grounded tools must be plugged into an outlet properly installed and grounded
in accordance with all codes and ordinances. Never remove the grounding
prong or modify the plug in any way. Do not use any adapter plugs. Check
with a qualified electrician if you are in doubt as to whether the outlet is properly
grounded. If the tools should electrically malfunction or break down, grounding
provides a low resistance path to carry electricity away from the user.
Double insulated tools are equipped with a polarized plug (one blade is wider
than the other). This plug will fit in a polarized outlet only one way. If the plug
does not fit fully in the outlet, reverse the plug. If it still does not fit, contact a
qualified electrician to install a polarized outlet. Do not change the plug in any
way. Double insulation
eliminates the need for the three wire grounded power
cord and grounded power supply system.
Avoid body contact with grounded surfaces such as pipes, radiators, ranges,
and refrigerators. There is an increased risk of electric shock if your body is
grounded.
7.
8.
Do not expose power tools to rain or wet conditions. Water entering a power
tool will increase the risk of electric shock.
Do not abuse the Power Cord. Never use the Power Cord to carry the tools or
pull the Plug from an outlet. Keep the Power Cord away from heat, oil, sharp
edges,or moving parts. Replace damaged Power Cords immediately. Damaged
Power Cords increase the risk of electric shock.
9.
When operating a power tool outside, use an outdoor extension cord marked
“W-A”or“W”. These extension cords are rated for outdoor use, and reduce the risk
of electric shock.
Personal Safety
10.
11.
Stay alert. Watch what you are doing, and use common sense when operating
a power tool. Do not use a power tool while tired or under the influence of
drugs, alcohol, or medication. A moment of inattention while operating power
tools may result in serious personal injury.
Dress properly. Do not wear loose clothing or jewelry. Contain long hair. Keep
your hair, clothing, and gloves away from moving parts. Loose clothes, jewelry,
or long hair can be caught in moving parts.
SKU 93827
For technical questions, please call 1-800-444-3353.
Page 4
12.
13.
Avoid accidental starting. Be sure the Power Switch is off before plugging in.
Carrying power tools with your finger on the Power Switch, or plugging in power
tools with the Power Switch on, invites accidents.
Remove adjusting keys or wrenches before turning the power tool on. A wrench
or a key that is left attached to a rotating part of the power tool may result in personal
injury.
14.
15.
Do not overreach. Keep proper footing and balance at all times. Proper footing
and balance enables better control of the power tool in unexpected situations.
Use safety equipment. Always wear eye protection. Dust mask, nonskid safety
shoes, hard hat, or hearing protection must be used for appropriate conditions.
Always wear ANSI approved safety goggles and a dust mask/respirator when using
or performing maintenance on this tool.
Tool Use and Care
16.
17.
Use clamps (not included) or other practical ways to secure and support the
workpiece to a stable platform. Holding the work by hand or against your body is
unstable and may lead to loss of control.
Do not force the tool. Use the correct tool for your application. The correct tool
will do the job better and safer at the rate for which it is designed. Do not force the
tool and do not use the tool for a purpose for which it is not intended. Do not modify
this product.
18.
19.
Do not use the power tool if the Power Switch does not turn it on or off. Any
tool that cannot be controlled with the Power Switch is dangerous and must be
replaced.
Disconnect the Power Cord Plug from the power source before making any
adjustments, changing accessories, or storing the tool. Such preventive safety
measures reduce the risk of starting the tool accidentally. Always unplug the tool
from its electrical outlet before performing any inspection, maintenance, or
cleaning procedures.
20.
21.
Store idle tools out of reach of children and other untrained persons. Tools are
dangerous in the hands of untrained users.
Maintain tools with care. Keep cutting tools sharp and clean. Properly
maintained tools with a sharp cutting edge are less likely to bind and are easier to
control. Do not use a damaged tool. Tag damaged tools “Do not use” until repaired.
22.
Check for misalignment or binding of moving parts, breakage of parts, and
any other condition that may affect the tool’s operation. If damaged, have the
tool serviced before using. Many accidents are caused by poorly maintained
tools.
SKU 93827
For technical questions, please call 1-800-444-3353.
Page 5
23.
Use only accessories that are recommended by the manufacturer for your
model. Accessories that may be suitable for one tool may become hazardous when
used on another tool.
Service
24.
25.
Tool service must be performed only by qualified repair personnel. Service or
maintenance performed by unqualified personnel could result in a risk of injury.
When servicing a tool, use only identical replacement parts. Follow instructions
in the “Inspection, Maintenance, And Cleaning”section of this manual. Use of
unauthorized parts or failure to follow maintenance instructions may create a risk of
electric shock or injury.
Grounding
WARNING!
Improperly connecting the grounding wire can result in the risk of electric
shock. Check with a qualified electrician if you are in doubt as to whether the
outlet is 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.
GroundedTools:ToolsWithThree Prong Plugs
1.
2.
Tools marked with “Grounding Required” have a three wire cord and three prong
grounding plug. The plug must be connected to a properly grounded outlet. If the
tool should electrically malfunction or break down, grounding provides a low
resistance path to carry electricity away from the user, reducing the risk of electric
shock. (See Figure A.)
The grounding prong in the plug is connected through the green wire inside the
cord to the grounding system in the tool. The green wire in the cord must be the only
wire connected to the tool’s grounding system and must never be attached to an
electrically “live” terminal. (See Figure A.)
SKU 93827
For technical questions, please call 1-800-444-3353.
Page 6
3.
Your tool must be plugged into an appropriate outlet, properly installed and grounded
in accordance with all codes and ordinances. The plug and outlet should look like
those in the following illustration. (See Figure A.)
FIGURE A
Double InsulatedTools:ToolsWithTwo Prong Plugs
4.
5.
Tools marked “Double Insulated” do not require grounding. They have a special
double insulation system which satisfies OSHA requirements and complies with
the applicable standards of Underwriters Laboratories, Inc., the Canadian Standard
Association, and the National Electrical Code. (See Figure B.)
Double insulated tools may be used in either of the 120 volt outlets shown in the
following illustration. (See Figure B.)
FIGURE B
Extension Cords
1.
2.
Grounded tools require a three wire extension cord. Double Insulated tools can
use either a two or three wire extension cord.
As the distance from the supply outlet increases, you must use a heavier gauge
extension cord. Using extension cords with inadequately sized wire causes a serious
drop in voltage, resulting in loss of power and possible tool damage.
(See Figure C, next page.)
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 Figure C.)
SKU 93827
For technical questions, please call 1-800-444-3353.
Page 7
4.
5.
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 Figure C.)
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 Figure C.)
6.
7.
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.
Make sure your extension cord is properly wired and in good electrical condition.
Always replace a damaged extension cord or have it repaired by a qualified
electrician before using it.
8.
Protect your extension cords from sharp objects, excessive heat, and damp or wet
areas.
RECOMMENDED MINIMUM WIRE GAUGE FOR EXTENSION CORDS*
NAMEPLATE
AMPERES
(At Full Load)
EXTENSION CORD LENGTH
25 Feet
18
50 Feet
75 Feet
100 Feet
150 Feet
0 - 2.0
2.1 - 3.4
18
18
18
16
14
12
10
18
18
16
14
12
10
-
18
16
14
12
10
-
16
14
12
12
-
18
3.5 - 5.0
18
5.1 - 7.0
18
7.1 - 12.0
12.1 - 16.0
16.1 - 20.0
18
14
-
12
-
-
* Based on limiting the line voltage drop to five
volts at 150% of the rated amperes.
FIGURE C
Symbology
SKU 93827
For technical questions, please call 1-800-444-3353.
Page 8
Specific Safety Rules
1.
Maintain a safe working environment. Make sure there is adequate surrounding
workspace. Always keep the work area free of obstructions, grease, oil, trash, and
other debris.
2.
3.
4.
Maintain labels and nameplates on this item. These carry important information.
If unreadable or missing, contact Harbor Freight Tools for a replacement.
When using a handheld power tool, always maintain a firm grip on the tool
with both hands.
To avoid electrical shock, do not pull or carry the AC Charger Adapter (63) by
its Power Cord or pull the Power Cord around sharp corners or edges. Do not
unplug the AC Charger Adapter by pulling on the Power Cord. Keep the Power
Cord away from heated surfaces.
5.
6.
Never leave the AC Charger Adapter (63) unattended when it is plugged in.
Make sure to unplug the AC Charger Adapter from its outlet before leaving.
Proper Battery Care: Battery (64) leakage may occur under extreme usage or
temperature conditions. If Battery fluid comes in contact with skin, wash with soap
and water and rinse with lemon juice and vinegar. If the fluid comes in contact with
eyes, flush with water for several minutes and contact a doctor immediately. Never
burn the Battery, as it can explode in a fire. Do not attempt to charge a leaking
Battery. Contact local solid waste authorities for instructions on correct disposal or
recycling of the Battery.
7.
Store idle equipment. When not in use, tools and equipment should be stored in a
dry location to inhibit rust. Always lock up tools and equipment, and keep out of
reach of children.
8.
9.
Industrial applications must follow OSHA requirements.
WARNING! Some dust created by power sanding, sawing, grinding, drilling,
and other construction activities, contain chemicals known (to the State of California)
to cause cancer, birth defects or other reproductive harm. Some examples of these
chemicals are: lead from lead-based paints, crystalline silica from bricks and cement
or other masonry products, arsenic and chromium from chemically treated lumber.
Your risk from these exposures varies, depending on how often you do this type of
work. To reduce your exposure to these chemicals: work in a well ventilated area,
and work with approved safety equipment, such as those dust masks that are specially
designed to filter out microscopic particles. (California Health & Safety Code §
25249.5, et seq.)
10.
11.
WARNING! People with pacemakers should consult their physician(s) before
using this product. Electromagnetic fields in close proximity to a heart pacemaker
could cause interference to or failure of the pacemaker.
WARNING! The warnings, precautions, and instructions discussed in this manual
cannot cover all possible conditions and situations that may occur. The operator
must understand that common sense and caution are factors which cannot be built
into this product, but must be supplied by the operator.
SKU 93827
For technical questions, please call 1-800-444-3353.
Page 9
CHARGINGTHE BATTERY
Note: Always switch to a fresh battery when tool performance begins to diminish.
Severe heat is most destructive to a battery; the more heat generated, the faster the
battery loses power. A battery that gets too hot can be permanently damaged. Never
over-discharge a battery by using the tool even after tool performance is decreasing.
Never attempt to discharge a tool’s battery by continuing to pull the tool trigger.When
tool performance begins to diminish, stop the tool, recharge the battery and
use the fresh battery for optimal performance.
1.
When a Battery (64) requires recharging, a 3 to 5 hour* charge allows the tool to
operate at full power. Do not recharge the Battery longer than 5 hours*, as damage
to the Battery and/or tool will occur.
2.
To charge the Battery (64), plug the AC Charger Adapter’s (63) plug into the Charger
(62). Insert the Charger (62) onto the top of the Battery (64) until it locks into place.
Charging room temperature: 50° F - 104° F. Then, plug the AC Charger Adapter
into the nearest 120 Volt, grounded, electrical outlet. (See illustration below.)
(62)
(64)
(63)
3.
Two Charging Indicator LEDs on the Charger (62) will illuminate to show that charging
is taking place. NOTE: The AC Charger Adapter (63) will not automatically turn off
when the Battery is fully charged, and the Charging Indicator LEDs will remain on
until the AC Charger Adapter is disconnected from the electrical outlet. Recharging
the Battery more than 5 hours* can cause damage to the battery cells.
4.
5.
While charging, the Battery (64), AC Charger Adapter (63), and/or Charger (62)
may become warm to the touch. This is normal, and does not indicate a problem.
Once the Battery (64) is fully charged, disconnect the AC Charger Adapter (63) from
the electrical outlet. Then, disconnect the Charger from the Battery.
* The Battery (64) require an initial charge time of 8 hours. Do not recharge the Battery more than 5
hours after this initial charging.
SKU 93827
For technical questions, please call 1-800-444-3353.
Page 10
OPERATION
Note: For additional information regarding the parts listed in the following pages, refer to
the Assembly Diagrams at the end of the manual.
Circular Saw
WARNING: Always make sure the Battery (64) of the Circular Saw is removed prior to
making any adjustments to the tool, except for adjusting the depth of cut (required to
install the battery).
(4)
(21)
(64)
(39)
(7)
(14)
(34)
(42)
(35)
(8)
(42)
(34)
1.
Blade Installation:
A. Make certain that the Battery (64) is removed before proceeding.
B. Remove the Hex Wrench (55) from its holder near the Depth Knob (34).
C. Press in and hold the Shaft Lock (7) while you loosen the Bolt (14). Remove the
Bolt (14) and the Outer Flange (13).
D. Hold the Guard (8) open and slide the Blade (10) over and onto the shaft from
the bottom. Make certain that the arrow marked on the Blade (10) is facing
the same direction as the arrow molded into the Fixed Guard (12).
E. Replace the Outer Flange (13) lining up the flats in the Flange with the flats on
the shaft.
F. Press in and hold the Shaft Lock (7) while you reinstall the Bolt (14) and securely
tighten it. Return the Hex Wrench (55) to its holder.
2.
The Fence (39) helps you cut multiple times at roughly the same distance.
To Adjust the Fence (39):
A. Loosen the Fence Knob (42).
B. Move the Fence as desired.
C. Retighten the Fence Knob securely.
SKU 93827
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Page 11
3.
4.
To Adjust the Angle of Cut:
A. Loosen the Angle Knob (34).
B. Pivot the Saw body in relation to the Foot (35) to adjust the angle. Read the
angle from the arrow and scale near the Angle Knob.
C. Retighten the Angle Knob (34) securely.
To Adjust the Depth of Cut:
A. Be sure to keep your fingers well away from theTrigger (4), Safety (21), and
Blade (10) while performing any adjustment, but especially when adjusting
the Depth, because the battery may be installed.
B. Loosen the Depth Knob (34).
C. Raise/lower the Saw body in relation to the Foot (35) to adjust the depth.
1
Note: Add / ” to the depth so the Saw Blade (10) can cut through the material cleanly.
8
D. Retighten the Depth Knob (34) securely.
5.
6.
Make certain that both halves of the workpiece are properly supported and secured
in place. Also, make sure that the path you will be cutting along is free from all
obstructions under/on the board and that there are no obstructions in the board itself
(such as knots or hardware).
Keep your fingers AWAY from theTrigger (4) and Safety (21) until you
are lined up with the board and ready to cut.
Adjust the depth of cut to the shallowest setting. Insert the fully charged Battery (64)
in the Circular Saw’s handle, and make sure it snaps into place on the handle. The
depth of cut can now be adjusted to the desired setting for use.
SKU 93827
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Page 12
7.
Causes and operator prevention of “kickback”: Kickback is a sudden reaction
to a pinched, bound, or misaligned Saw Blade (10), causing an uncontrolled Saw to
lift up and out of the workpiece toward the operator. When the Saw Blade is pinched
or bound tightly by the kerf (i.e. the slot that was cut) closing down, the Saw Blade
stalls and the Motor reaction drives the tool rapidly toward the operator. If the Saw
Blade becomes twisted or misaligned in the cut, the teeth at the back edge of the
Saw Blade can dig into the top surface of the workpiece, causing the Saw Blade to
climb out of the kerf and jump back toward the operator. Kickback is a result of
tool misuse and/or incorrect operating procedures or conditions and can be
minimized by taking proper precautions as given below:
A. Maintain a firm grip with both hands on the Saw, and position your body
and arm to allow you to resist kickback forces.
B. When the Saw Blade (10) is binding, or when interrupting a cut for any
reason, release theTrigger (4) and hold the Saw motionless in the workpiece
until the Saw Blade comes to a complete stop. Never attempt to remove the
Saw from the workpiece or pull the Saw backward while the Saw Blade is in
motion or kickback can occur.
C. When restarting the Saw in the workpiece, center the Saw Blade (10) in the
kerf and check that the saw teeth are not engaged into the workpiece. If the
Saw Blade is binding, it may walk up or kickback from the workpiece as the Saw
is restarted.
D. Support large panels to minimize the risk of Saw Blade pinching and
kickback. Large panels tend to sag under their own weight. Supports must be
placed under the panel on both sides, near the line of cut and near the edge of
the panel.
E. Do not use a dull or damaged Saw Blade (10). Unsharpened or improperly
set Saw Blades produce a narrow kerf causing excessive friction, Saw Blade
binding and kickback.
F. Make sure all Saw adjustments are tight and secure before making a cut. If
Saw adjustments shift while cutting, it may cause binding and kickback.
G. Use caution when making a pocket cut into existing walls. The Saw Blade
(10) may cut objects that can cause kickback. Always check to make sure there
are no electrical wires or cables in the cutting path.
8.
9.
Get in Position for and Perform the Cut:
A. Rest the front section of the Foot (35) on the edge of the workpiece. Line up the
Saw Blade (10) with the line you will cut along.
B. Press the Safety (21) in and squeeze the Trigger (4). Allow the Saw Blade to
rotate up to full speed before evenly moving the Saw along the cut.
Do not force the saw, allow it to cut at its own pace.
Release theTrigger (4) and Safety (21) once the cut is completed. As a
safety measure, remove the Battery (64) when work is completed.
SKU 93827
For technical questions, please call 1-800-444-3353.
Page 13
INSPECTION, MAINTENANCE, AND CLEANING
1.
2.
WARNING! Always remove the Battery Pack (64) from a tool and unplug
the AC Charger Adapter (63) from its electrical outlet before performing any
inspection, maintenance, or cleaning on the tool.
BEFORE EACH USE, inspect the general condition of the tool. Check for
misalignment or binding of moving parts, cracked or broken parts, damaged wiring,
and any other condition that may affect its safe operation. If abnormal noise or
vibration occurs with a tool, have the problem corrected before further use. Do not
use damaged equipment.
3.
4.
TO CLEAN, use a clean, slightly damp cloth to clean the outer surfaces of the tool.
A mild detergent may be used. Do not use solvents. Do not immerse the tool,
Battery, or AC Charger Adapter in water.
WHEN STORING,always keep the tool a clean, dry location out of reach of children.
Keep charger unplugged from the wall outlet when not in use.
PLEASE READ THE FOLLOWING CAREFULLY
THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDEDTHE PARTS DIAGRAM INTHIS MANUAL
AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER NOR DISTRIBUTOR MAKES ANY
REPRESENTATION ORWARRANTY OF ANY KINDTOTHE BUYERTHAT HE OR SHE IS QUALIFIEDTO
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
STATESTHAT ALL REPAIRS AND PARTS REPLACEMENTS SHOULD BE UNDERTAKEN BY CERTIFIED
AND LICENSED TECHNICIANS AND NOT BY THE BUYER. THE BUYER ASSUMES ALL RISK AND
LIABILITY ARISING OUT OF HIS OR HER REPAIRSTOTHE ORIGINAL PRODUCT OR REPLACEMENT
PARTS THERETO, OR ARISING OUT OF HIS OR HER INSTALLATION OF REPLACEMENT PARTS
THERETO.
SKU 93827
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Page 14
Parts List and Diagram - Circular Saw
Part
1
Description
Left Housing
Part
Description
Part
Description
22 Spring
42 Fence Knob
43 Washer
3
Heat Cover
Trigger
23 Screw M5x10
24 Inner Flange
25 Shaft Cover
26 Washer
4
44 Spring
5
Right Housing
Screw
45 Screw M3.5x16
46 Screw M4x72
47 Terminal
48 Screw M3x5
49 Red Wire
50 Black Wire
51 Ferrite Bead
52 Label
6
7
Shaft Lock
Guard
27 Bearing
8
28 Bushing
29 Base
9
Guard Spring
10 Saw Blade
11 Spring Washer
12 Fixed Guard
13 Outer Flange
14 Bolt
30 Motor Gear
31 Motor
32 Motor Mount
33 Motor Housing
34 Knob
53 Rubber Post
54 Screw
15 Rubber Stop
16 Screw M3x10
17 Lock Pin
18 Spring
35 Foot
55 Hex Wrench
56 Nut M4
36 Receiver
37 Foot Support
38 Foot Pivot
39 Fence/Ruler
40 Bracket
57 Spring Washer
58 Nut
19 Nut M5
59 Nut M5
20 Screw
60 Black Wire
61 Red Wire
21 Safety
41 Screw
Part 62 - Charger - not shown.
Part 63 - AC Charger Adapter - not shown.
Part 64 - Battery - not shown.
NOTE: Some parts are listed and shown for illustration purposes only, and are not available individually as
original or replacement parts.
SKU 93827
For technical questions, please call 1-800-444-3353.
Page 15
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