Benchmark 1250-000 Manual de usuario

4-1/2" ANGLE GRINDER

3042597

JD3116U

WEAR CSA APPROVED

EYE PROTECTION

WEAR EAR

PROTECTION

WEAR A

FACE MASK

*5 year limited warranty on tool

PRODUCT SPECIFICATIONS

BENCHMARK 4-1/2" ANGLE GRINDER

Rating: 120V, 60Hz, AC

Amperes: 10 Amp

Ratring speed: 11800 RPM (no load)

Arbor size: 5/8"

Blade size 4-1/2"

Weight: 10 lbs / 4.54kg

NEED ASSISTANCE?

Call us on our toll-free customer support line:

1-866-349-8665 (Monday through Friday 9am – 5pm Eastern Standard Time)

• Technical questions

• Replacement parts

• Parts missing from package

1250-000

4-1/2" ANGLE GRINDER

TABLE OF CONTENTS

Product Speciﬁcations .................................................................................. 1

Table of Contents .......................................................................................... 2

General Safety Warnings ............................................................................... 3

Power Tool Safety ....................................................................................... 4-5

Speciﬁc Safety Rules for Angler Grinders .................................................... 6-9

Extension Cord Safety .............................................................................. 9-10

Symbols ...................................................................................................... 11

Know Your Angler Grinder ............................................................................ 12

Assembly and Operating ........................................................................ 12-17

Maintenance .......................................................................................... 18-20

Exploded View ............................................................................................ 21

Parts List ............................................................................................... 22-23

Warranty ..................................................................................................... 24

GENERAL SAFETY WARNINGS

WARNING:

Before using this tool or any of its accessories, read this manual and follow all Safety

Rules and Operating Instructions. The important precautions, safeguards and

instructions appearing in this manual are not meant to cover all possible situations.

It must be understood that common sense and caution are factors which cannot be

built into the product.

EYE, EAR & LUNG PROTECTION

ALWAYS WEAR EYE PROTECTION THAT CONFORMS WITH CSA

REQUIREMENTS or ANSI SAFETY STANDARD Z87.1

FLYING DEBRIS can cause permanent eye damage. Prescription eyeglasses ARE NOT

a replacement for proper eye protection.

WARNING:

Non-compliant eyewear can cause serious injury if broken during the operation of a

power tool.

WARNING:

Use hearing protection, particularly during extended periods of operation of the

tool, or if the operation is noisy.

WEAR A DUST MASK THAT IS DESIGNED TO BE USED WHEN

OPERATING A POWER TOOL IN A DUSTY ENVIRONMENT.

WARNING:

Dust that is created by power sanding, sawing, grinding, drilling, and other

construction activities may contain chemicals that are known to cause cancer, birth

defects, or other genetic abnormalities. These chemicals include:

• Lead from lead-based paints

• Crystalline silica from bricks, cement, and other masonry products

• Arsenic and chromium from chemically treated lumber

The level of risk from exposure to these chemicals varies according to how often this

type of work is performed. In order to reduce exposure to these chemicals, work in a

well-ventilated area, and use approved safety equipment, such as a dust mask that

is speciﬁcally designed to ﬁlter out microscopic particles.

ELECTRICAL SAFETY

WARNING:

To avoid electrical hazards, ﬁre hazards or damage to the tool, use proper circuit

protection.

This tool is wired at the factory for 120V AC operation. It must be connected to a

120V AC, 15 A circuit that is protected by a time-delayed fuse or circuit breaker. To

avoid shock or ﬁre, replace power cord immediately if it is worn, cut or damaged in

any way.

1250-000

4-1/2" ANGLE GRINDER

POWER TOOL SAFETY

WARNING:

Read all safety warnings and instructions. Failure to follow the warnings and

instructions may result in electric shock, ﬁre and/or serious injury.

SAVE ALL WARNINGS AND INSTRUCTIONS FOR FUTURE REFERENCE.

WORK AREA SAFETY

Keep work area clean and well lit. Cluttered or 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.

Keep children and bystanders away while operating a power tool. Distractions can

cause you to lose control.

ELECTRICAL SAFETY

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.

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.

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 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.

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.

If operating a power tool in a damp location is unavoidable, use a residual current

device (RCD) protected supply. Use of a ground fault circuit interrupter (GFCI)

reduces the risk of electric shock.

PERSONAL SAFETY

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.

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.

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.

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.

Do not overreach. Keep proper footing and balance at all times. This enables better

control of the power tool in unexpected situations.

Dress properly. Do not wear loose clothing or jewellery. Keep your hair, clothing and

gloves away from moving parts. Loose clothes, jewellery or long hair can be caught

in moving parts.

If devices are provided for dust extraction and collection, ensure these are

connected and properly used. Use of dust collection facilities can reduce dust-

related hazards.

POWER TOOL USE AND CARE

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.

that cannot be controlled with the switch is dangerous and must be repaired.

Disconnect the plug from the power source and/or the battery pack 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.

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.

Maintain power tools. Check for misalignment or binding of moving parts, breakage

damaged, have the power tool repaired before use. Many accidents are caused by

poorly maintained power tools.

Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp

cutting edges are less likely to bind and are easier to control.

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

result in a hazardous situation.

SERVICE

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.

1250-000

4-1/2" ANGLE GRINDER

SPECIFIC SAFETY RULES FOR ANGLE GRINDERS

WARNING:

Know your angle grinder. Do not plug the angle grinder into the power source until

you have read and understand this Instruction Manual. Learn the tool’s applications

and limitations, as well as the speciﬁc potential hazards related to this tool.

Following this rule will reduce the risk of electric shock, ﬁre, or serious injury.

ALWAYS WEAR EYE PROTECTION THAT CONFORMS WITH CSA

REQUIREMENTS or ANSI SAFETY STANDARD Z87.1

Everyday glasses have only impact resistant lenses. They ARE NOT safety glasses.

WARNING:

Glasses or goggles not in compliance with ANSI Z87.1 could cause serious injury

when they break.

applications, see UL Standard 60745-2-3 Pages 7, 8 and 9.

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.

Do not use accessories which are not speciﬁcally designed and recommended by

the tool manufacturer. Just because the accessory can be attached to your power

tool, does not ensure safe operation.

The rated speed of the accessory must be at least equal to the maximum speed

marked on the power tool. Accessories running faster than their RATED SPEED can

break and ﬂy apart.

The outside diameter and the thickness of your accessory must be within the

capacity rating of your angle grinder. Incorrectly sized accessories cannot be

adequately guarded or controlled.

Always follow the instructions related to the use of blotters, correct use of ﬂanges

and guards, and proper storage of the accessory outlined by the manufacturer of

the accessory.

The arbor size of wheels, ﬂanges, backing pads or any other accessory must

properly ﬁt the spindle of the angle grinder tool. Accessories with arbor holes that

do not match the mounting hardware of the angle grinder will run out of balance,

vibrate excessively and may cause loss of control.

Do not use a damaged accessory. Before each use inspect the accessory for chips

and cracks. If the angle grinder or accessory is dropped, inspect them for damage

or install an undamaged accessory. After inspecting and installing the accessory,

position yourself and bystanders away from the plane of the rotating accessory and

run the power tool at maximum no-load speed for one minute. Damaged accessories

will normally break apart during this test time.

Wear personal protective equipment. Depending on the application, use a face

shield, safety goggles or safety glasses. As appropriate, wear a dust mask, hearing

protection, gloves and workshop apron capable of stopping small abrasive or

workpiece fragments. The eye protection must be capable of stopping ﬂying debris

generated by various operations. The dust mask or respirator must be capable of

ﬁltering particles generated by your operation. Prolonged exposure to high intensity

noise may cause hearing loss.

Keep bystanders a safe distance away from the work area. Anyone entering the work

area must wear personal protective equipment. Fragments of the workpiece or of

a broken accessory may ﬂy away and cause injury beyond the immediate area of

operation.

Hold the angle grinder tool by insulated gripping surfaces when performing an

operation where the cutting accessory may contact hidden wiring or the angle

grinder’s cord. The cutting accessory contacting a "live" wire may make exposed

metal parts of the angle grinder "live" and shock the operator.

Position the cord clear of the spinning accessory. If you lose control, the cord may

be cut or snagged and your hand or arm may be pulled into the spinning accessory.

Never lay the angle grinder down until the accessory has come to a complete stop.

The spinning accessory may grab the surface and pull the angle grinder out of your

control.

Do not run the angle grinder while carrying it at your side. Accidental contact with

the spinning accessory could snag your clothing, pulling the accessory into your

body.

Regularly clean the angle grinder’s air vents. The motor’s fan will draw the dust

inside the housing and excessive accumulation of powdered metal may cause

electrical hazards.

Do not operate the angle grinder near ﬂammable materials. Sparks could ignite

these materials.

Do not use accessories that require liquid coolants. Using water or other liquid

coolants may result in electrocution or shock.

KICKBACK AND RELATED WARNINGS

Kickback is a sudden reaction to a pinched or snagged rotating wheel, backing

pad, brush or any other accessory. Pinching or snagging causes rapid stalling of the

rotating accessory which in turn causes the uncontrolled angle grinder to be forced

in the direction opposite of the accessory’s rotation at the point of the binding.

For example, if an abrasive wheel is snagged or pinched by the workpiece, the edge

of the wheel that is entering into the pinch point can dig into the surface of the

material causing the wheel to climb out or kick out.

The wheel may either jump toward or away from the operator, depending on

direction of the wheel’s movement at the point of pinching. Abrasive wheels may

also break under these conditions.

Kickback is the result of power tool misuse and/or incorrect operating procedures

or conditions and can be avoided by taking proper precautions as given below.

Maintain a ﬁrm grip on the angle grinder and position your body and arm to allow

you to resist kickback forces. Always use the anti-vibe auxiliary handle for maximum

control over kickback or torque reaction during start-up. The operator can control

torque reactions or kickback forces if proper precautions are taken.

1250-000

4-1/2" ANGLE GRINDER

Never place your hand near the rotating accessory. The accessory may kickback

over your hand.

Do not position your body in the area where the angle grinder will move if kickback

occurs. Kickback will propel the tool in the direction opposite to the wheel’s

movement at the point of snagging.

Use special care when working corners, sharp edges etc. Avoid bouncing and

snagging the accessory. Corners, sharp edges or bouncing have a tendency to snag

the rotating accessory and cause loss of control or kickback.

Do not attach a saw chain woodcarving blade or toothed saw blade. Such blades

create frequent kickback and loss of control.

ADDITIONAL WARNINGS FOR GRINDING

Use only wheel types that are recommended for your angle grinder and the speciﬁc

guard designed for the selected wheel. Wheels for which the power tool was not

designed cannot be adequately guarded and are unsafe.

The guard must be securely attached to the angle grinder and positioned for

maximum safety, so the least amount of wheel is exposed towards the operator.

The guard helps to protect operator from broken wheel fragments and accidental

contact with the wheel.

Wheels must be used only for recommended applications. For example: do not grind

grinding and side forces applied to these wheels may cause them to shatter.

Always use undamaged wheel ﬂanges that are of correct size and shape for

your selected wheel. Proper wheel ﬂanges support the wheel thus reducing the

grinding wheel ﬂanges.

Do not use worn down wheels from larger power tools. Wheels intended for a larger

angle grinder are not suitable for the higher speed of a smaller tool and may burst.

ADDITIONAL SAFETY WARNINGS SPECIFIC

FOR ABRASIVE CUTTING-OFF OPERATIONS

make an excessive depth of cut. Overstressing the wheel increases the loading and

susceptibility to twisting or binding of the wheel in the cut and the possibility of

kickback or wheel breakage.

Do not position your body in line with and behind the rotating wheel. When the

wheel, at the point of operation, is moving away from your body, the possible

kickback may propel the spinning wheel and the power tool directly at you.

power tool and hold the power tool motionless until the wheel comes to a complete

stop.

otherwise kickback may occur. Investigate and take corrective action to eliminate

the cause of wheel binding.

Do not restart the cutting operation in the workpiece. Let the wheel reach full speed

and carefully reenter the cut. The wheel may bind, walk up or kickback if the power

tool is restarted in the workpiece.

Support panels or any oversized workpiece to minimize the risk of wheel pinching

and kickback. Large workpieces tend to sag under their own weight. Supports

must be placed under the workpiece near the line of cut and near the edge of the

workpiece on both sides of the wheel.

Use extra caution when making a “pocket cut” into existing walls or other blind

areas. The protruding wheel may cut gas or water pipes, electrical wiring or objects

that can cause kickback.

SAFETY WARNINGS SPECIFIC FOR SANDING OPERATIONS

Do not use excessively oversized sanding disc paper. Follow manufacturer’s

recommendations when selecting sanding paper. Larger sanding paper extending

beyond the sanding pad presents a laceration hazard and may cause snagging,

tearing of the disc or kickback.

SAFETY WARNINGS SPECIFIC FOR POLISHING OPERATIONS

Do not allow any loose portion of the polishing bonnet or its attachment strings to

spin freely. Tuck away or trim any loose attachment strings. Loose and spinning

attachment strings can entangle your ﬁngers or snag on the workpiece.

SAFETY WARNINGS SPECIFIC FOR WIRE BRUSHING OPERATIONS

Be aware that wire bristles are thrown by the brush even during ordinary operation.

Do not overstress the wires by applying excessive load to the brush. The wire bristles

can easily penetrate light clothing and/or skin.

If the use of a guard is recommended for wire brushing, do not allow any

interference of the wire wheel or brush with the guard. Wire wheel or brush may

expand in diameter due to work load and centrifugal forces.

EXTENSION CORD SAFETY

WARNING:

Keep the extension cord clear of the working area. Position the cord so it will not get

caught on the workpiece, tools or any other obstructions while you are working with

the power tool.

Make sure any extension cord used with this tool is in good condition. When using

an extension cord, be sure to use one of heavy enough gauge to carry the current

the tool will draw. An undersized cord will cause a drop in line voltage resulting in

loss of power and overheating.

The table below shows the correct size to use according to cord length and

nameplate ampere rating. If in doubt, use the next heavier gauge. The smaller the

gauge number the heavier the cord.

Be sure your extension cord is properly wired and in good condition. Always replace

a damaged extension cord or have it repaired by a qualiﬁed electrician before using

it. Protect your extension cord from sharp objects, excessive heat and damp or wet

areas.

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