Chicago Electric 90186 Manual de usuario

7-1/4” CIRCULAR SAW

WORM GEAR DRIVE

Model

90186

ASSEMBLY AND OPERATING INSTRUCTIONS

Visit our website at: http://www.harborfreight.com

Read this material before using this product.

Failure to do so can result in serious injury.

SAVE THIS MANUAL.

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 improve-

ments, actual product may differ slightly from the product described herein. Tools required for assembly

and service may not be included.

For technical questions or replacement parts, please call 1-800-444-3353.

Revised Manual 10i

PRODUCT SPECIFICATIONS

SAVE THIS 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

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. Keep your work area clean and well lit. Cluttered benches and dark areas

invite accidents.

2. 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 90186 PAGE 2

ITEM DESCRIPTION

Electrical 110V / 60 Hz / 13 Amp / 4500 RPM

Single Phase / Easy Access Carbon Brushes (Qty. 2)

Saw Blade Capacity 7-1/4” Diameter

Blade Arbor Hole Diamond

Depth of Cut 2-1/4”

Additional Features Two Handle Design / Spring Loaded Blade Guard /

Safety Switch / 5/8” Arbor Adapter

Overall Dimensions 18-1/2”L x 7-1/8”W (at its widest point)

Shoe Plate Size 11-13/16”L x 5-3/16”W

Weight 15.85 Pounds

WARNING

3. 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.

ELECTRICAL SAFETY

4. 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.

5. Double insulated tools are equipped with a polarized plug (one blade is

wider than the other). This plug will ﬁt in a polarized outlet only one way. If

the plug does not ﬁt fully in the outlet, reverse the plug. If it still does not

ﬁt, contact a qualiﬁed electrician to install a polarized outlet. Do not

change the plug in any way. Double insulation eliminates the need for the

three wire grounded power cord and grounded power supply system.

6. 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. Do not expose power tools to rain or wet conditions. Water entering a power

tool will increase the risk of electric shock.

8. Do not abuse the Power Cord. Never use the Power Cord to carry the tools

or pull the Plug from an outlet. Keep the Power Cord away from heat, oil,

sharp edges, or moving parts. Replace damaged Power Cords immediately.

Damaged Power Cords increase the risk of electric shock.

9. When operating a power tool outside, use an outdoor extension cord

marked “W-A” or “W”. These extension cords are rated for outdoor use, and

reduce the risk of electric shock.

PERSONAL SAFETY

10. Stay alert. Watch what you are doing, and use common sense when

operating a power tool. Do not use a power tool while tired or under the

inﬂuence of drugs, alcohol, or medication. A moment of inattention while

operating power tools may result in serious personal injury.

SKU 90186 PAGE 3

11. 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.

12. 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.

13. 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. 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.

15. Use safety equipment. Always wear eye protection. Dust mask, non-skid

safety shoes, hard hat, or hearing protection must be used for appropriate

conditions.

TOOL USE AND CARE

16. Use clamps (not included) or other practical ways to secure and support

the workpiece to a stable platform. Holding the work by hand or against your

body is unstable and may lead to loss of control.

17. 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.

18. 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.

19. Disconnect the Power Cord Plug from the power source before making any

adjustments, changing accessories, or storing the tool. Such preventive

safety measures reduce the risk of starting the tool accidentally.

20. Store idle tools out of reach of children and other untrained persons. Tools

are dangerous in the hands of untrained users.

21. 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.

SKU 90186 PAGE 4

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.

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. Tool service must be performed only by qualiﬁed repair personnel. Service

or maintenance performed by unqualiﬁed personnel could result in a risk of injury.

25. 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.

SPECIFIC SAFETY RULES

1. Maintain a safe working environment. Keep the work area well lit. Make sure

there is adequate surrounding workspace. Always keep the work area free of

obstructions, grease, oil, trash, and other debris. Do not use the Circular Saw in

areas near ﬂammable chemicals, dusts, and vapors.

2. Maintain labels and nameplates on the Circular Saw. These carry

important information. If unreadable or missing, contact Harbor Freight Tools for

a replacement.

3. To avoid serious personal injury and/or property damage, always

use Saw Blades (part #3) that are rated at 4500 RPM or greater on this par-

ticular Circular Saw.

4. Replace a dull or damaged Saw Blade (part #3) immediately.

5. Always wear a safety impact full face shield, hearing protection, and heavy

duty work gloves when using this product. A safety impact full face shield,

hearing protection, and heavy duty work gloves are available from Harbor Freight

Tools.

6. Keep all guards in place and working properly.

SKU 90186 PAGE 5

WARNING

13. Check for damaged parts. Before using this product, carefully check that it will

operate properly and perform its intended function. Check for damaged parts

and any other conditions that may affect the safe operation of this product.

Replace or repair damaged or worn parts immediately.

14. Replacement parts and accessories. When servicing, use only identical re-

placement parts. Only use accessories intended for use with this product.

15. Use the right product for the right job. There are certain applications for

which this product was designed. Do not use small equipment, tools, or

attachments to do the work of larger industrial equipment, tools, or attachments.

Do not use this product for a purpose for which it was not intended.

SKU 90186 PAGE 6

16. Stay alert. Watch what you are doing at all times. Use common sense. Do

not use this product when you are tired or distracted from the job at hand.

17. Do not operate this product when fatigued or under the inﬂuence of alcohol

or drugs.

10. Always remove all adjusting keys and wrenches from the Circular Saw

before starting.

11. Do not pull or carry the Circular Saw by its Power Cord (part #65), or

pull the Cord around sharp corners or edges. Do not unplug the Circular Saw

by pulling on the Cord. Keep the Cord away from heated surfaces.

12. Do not force the tool. This Circular Saw will do the work better and safer at

the speed and capacity for which it is designed.

7. When using the Circular Saw, always maintain a ﬁrm grip on the tool with

both hands and keep hands and ﬁngers away from the cutting area and

Saw Blade.

8. Keep your body positioned to either side of the Saw Blade, but not in line

with the Saw Blade.

9. Avoid “kickback” forces. Kickback is a sudden reaction to a pinched, bound,

or misaligned Saw Blade causing an uncontrolled Circular Saw to lift up and out

of the workpiece toward the operator. Always maintain a ﬁrm grip with both

hands on the Saw and position your body and arm to allow you to resist

kickback forces. When the Saw Blade is binding, or when interrupting a cut for

any reason, release the Power Switch (part #67) 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 may occur.

18. Always turn off the Circular Saw and unplug it from its electrical outlet

before changing accessories or performing any inspection, maintenance, or

cleaning procedures.

19. The warnings and cautions discussed in this manual cannot cover all

possible conditions and situations that may occur. It must be under stood by the

operator that common sense and caution are factors which cannot be built into

this product, but must be supplied the the operator.

SKU 90186 PAGE 7

Improperly connecting the grounding wire can result in the risk of electric

shock. Check with a qualﬁﬁed 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

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 aways from the user, reducing the risk of

electric shock. (See Figure A, next page.)

20. 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 and 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.)

21. People with pacemakers should consult their physician(s) before us-

ing this product. Operation of electrical equipment in close proximity to a heart

pacemaker could cause interference or failure of the pacemaker.

WARNING

FIGURE A

SKU 90186 PAGE 8

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 Figure A.)

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 that in the following illustration. (See Figure A.)

DOUBLE INSULATED TOOLS: TOOLS WITH TWO PRONG PLUGS

4. Tools marked “Double Insulated” do not require grounding. They have a

special double insulation system which satisﬁes OSHA requirements and

complies with the applicable standards of Underwriters Laboratories, Inc., the

Canadian Standard Association, and the National Electrical Code.

(See Figure B.)

5. Double insulated tools may be used in either of the 110 volt outlets shown in the

following illustration. (See Figure B.)

FIGURE B

SKU 90186 PAGE 9

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 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.)

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 Figure C.)

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 Figure C.)

6. If you are using an extension cord outdoors, make sure it is marked with the suf-

ﬁx “W-A” (“W” in Canada) to indicate it is acceptable for outdoor use.

7. Make sure your extension cord is properly wired and in good electrical condition.

Always replace a damaged extension cord or have it repaired by a qualiﬁed elec-

trician before using it. Protect your extension cords from sharp objects, excessive

heat, and damp or wet areas.

FIGURE C

SKU 90186 PAGE 10

SYMBOLOGY

Double Insulated

Canadian Standards

Association

Underwriters

Laboratories, Inc.

Volts Alternating Current

Amperes

No Load Revolutions

per Minute (RPM)

xxxx/min.

V ~

UNPACKING

When unpacking, check to make sure all the parts shown on the Parts List on page 17

and 18 are included. If any parts are missing or broken, please call Harbor Freight Tools

at the number shown on the cover of this manual as soon as possible.

ASSEMBLY INSTRUCTIONS

NOTE: For additional information regarding the parts listed in the following pages, refer

to the Assembly Diagram on page 19.

Always make sure the Power Cord (part #65) of the Circular Saw is

unplugged from its electrical outlet prior to assembly, adding any accessories, or

making any adjustments to the tool.

To Remove/Install A Saw Blade:

1. Depress the Lock Button to hold the Saw Blade (part #3) in place. Continue to

depress the Lock Button. Then, unscrew (clockwise) and remove the Bolt

(part #1) and Outer Blade Press (part #2). (See Figures D and E, next page.)

2. Pull the Lower Guard (part #6) all the way up into the Upper Guard (part #21).

Then, remove the old Saw Blade (part #3) and install a new Saw Blade onto the

Shaft (part #15). NOTE: Make sure to install the new Saw Blade with its

teeth and the arrow on the Saw Blade pointing in the same direction as the

arrow on the Lower Guard. (See Figure F, next page.)

WARNING

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