Hobart 4-1/2 In. Angle Grinder Owner's Manual

OM-254 206A 2011−08

Description

Accessory

4-1/2 In. Angle

Grinder

www.HobartWelders.com

File: Accessory

TABLE OF CONTENTS

SECTION 1 − SAFETY PRECAUTIONS - READ BEFORE USING 1.................................

1-1. Symbol Usage 1.......................................................................

1-2. Hazards 1............................................................................

1-3. Additional Symbols For Installation, Operation, And Maintenance 2.............................

1-4. California Proposition 65 Warnings 3......................................................

1-5. Principal Safety Standards 3.............................................................

SECTION 2 − ADDITIONAL SAFETY PRECAUTIONS 4...........................................

SECTION 3 − DEFINITIONS 4..................................................................

3-1. Symbols And Definitions 4...............................................................

SECTION 4 − SPECIFICATIONS 4..............................................................

4-1. Angle Grinder Components 4............................................................

4-2. Specifications 5........................................................................

SECTION 5 − INSTALLATION 5................................................................

5-1. Serial Number And Rating Label Location 5................................................

5-2. Selecting A Location 5..................................................................

5-3. Installing And Positioning Guard 6........................................................

5-4. Installing/Removing Wheel 7.............................................................

5-5. Installing Stabilizer Handle 7.............................................................

SECTION 6 − OPERATION 8...................................................................

6-1. Controls 8............................................................................

6-2. Operating The Grinder 8................................................................

SECTION 7 − MAINTENANCE 9................................................................

7-1. Routine Maintenance 9.................................................................

7-2. Replacing Motor Brushes 9..............................................................

WARRANTY

Hobart is registered to
the ISO 9001 Quality
System Standard.

SECTION 1 − SAFETY PRECAUTIONS - READ BEFORE USING

7

Protect yourself and others from injury — read and follow these precautions.

1-1. Symbol Usage

Pwr. Tools 2011−08

DANGER! − Indicates a hazardous situation which, if
not avoided, will result in death or serious injury. The
possible hazards are shown in the adjoining symbols
or explained in the text.

Indicates a hazardous situation which, if not avoided,
could result in death or serious injury. The possible
hazards are shown in the adjoining symbols or ex­plained in the text.

NOTICE − Indicates statements not related to personal injury.

1-2. Hazards

The symbols shown below are used throughout this manual
to call attention to and identify possible hazards. When you
see the symbol, watch out, and follow the related instructions
to avoid the hazard. The safety information given below is
only a summary of the more complete safety information
found in the Safety Standards listed in Section 1-5. Read and
follow all Safety Standards.

Only qualified persons should install, operate, maintain, and
repair this unit.

During operation, keep everybody, especially children, away.

ELECTRIC SHOCK can kill.

Touching live electrical parts can cause fatal shocks
or severe burns. The input power circuit and machine
internal circuits are live when power is on.

D Do not touch live electrical parts.

D Do not use equipment in damp areas, if movement is confined, or if

there is a danger of falling.

D Additional safety precautions are required when any of the follow-

ing electrically hazardous conditions are present: in damp
locations or while wearing wet clothing; on metal structures such
as floors, gratings, or scaffolds; when in cramped positions such
as sitting, kneeling, or lying; or when there is a high risk of unavoid­able or accidental contact with the equipment. And, do not work
alone!

D Disconnect input power before installing or servicing this equip-

ment.

D Properly install and ground this equipment according to its

Owner’s Manual and national, state, and local codes.

D Always verify the supply ground − check and be sure that input

power cord ground wire is properly connected to ground terminal in
disconnect box or that cord plug is connected to a properly
grounded receptacle outlet.

D Do not touch grounded surfaces when using this equipment (metal

pipes, enclosures, structures, etc.).

D When making input connections, attach proper grounding conduc-

tor first − double-check connections.

D Keep cords dry, free of oil and grease, and protected from hot metal

and sparks.

D Frequently inspect input power cord for damage or bare wiring −

replace cord immediately if damaged − bare wiring can kill.

. Indicates special instructions.

This group of symbols means Warning! Watch Out! ELECTRIC
SHOCK, MOVING PARTS, and HOT PARTS hazards. Consult sym­bols and related instructions below for necessary actions to avoid the
hazards.

D Turn off all equipment when not in use. Do not leave equipment

until it has completely stopped.

D Use only well-maintained equipment. Repair or replace damaged

parts at once. Maintain unit according to manual.

D Keep all panels and covers securely in place.

HOT PARTS can burn.

D Do not touch hot parts bare handed.
D Allow cooling period before working on equip-

ment.

D To handle hot parts, use proper tools and/or

wear heavy, insulated welding gloves and
clothing to prevent burns.

FUMES, GASES, AND PARTICLES can
be hazardous.

Using this equipment with certain materials may
produce fumes, gases, and particles. Breathing
these fumes, gases, and particles can be hazardous
to your health.

D Keep your head out of the fumes, gases, and particles. Do not

breathe the fumes, gases, and particles.

D If inside, ventilate the area and/or use local forced ventilation to re-

move fumes, gases and particles.

D If ventilation is poor, wear an approved air-supplied respirator.
D Read and understand the Material Safety Data Sheets (MSDSs)

and the manufacturer’s instructions for metals, consumables,
coatings, cleaners, and degreasers.

D Work in a confined space only if it is well ventilated, or while

wearing an air-supplied respirator. Always have a trained watch­person nearby. Fumes, gases, and particles can displace air and
lower the oxygen level causing injury or death. Be sure the breath­ing air is safe.

D Do not work in locations near degreasing, cleaning, or spraying

operations.

D Do not work on materials that may contain hazardous substances,

including masonry, treated lumber, and items with lead-based
paint. Do not work on on coated metals, such as galvanized, lead,
or cadmium plated steel, unless the coating is removed from the
work area, the area is well ventilated, and while wearing an air­supplied respirator. Coatings and any materials containing these
elements can give off toxic fumes, gases, and particles when
worked on.

OM-254 206 Page 1

SPARKS can cause fire or explosion.

Sparks can fly off from the equipment. The flying
sparks, hot workpiece, and hot equipment can
cause fires and burns. Accidental contact with metal

or fire. Check and be sure the area is safe before doing any work.
D Remove all flammables within 35 ft (10.7 m) of the equipment. If

this is not possible, tightly cover them with approved covers.

D Do not work where flying sparks can strike flammable material.
D Protect yourself and others from flying sparks and hot metal.
D Be alert that sparks and hot materials can easily go through small

cracks and openings to adjacent areas.

D Watch for fire, and keep a fire extinguisher nearby.
D Do not work where the atmosphere may contain flammable dust,

gas, or liquid vapors (such as gasoline).

D Wear oil-free protective garments such as a heavy shirt, cuffless

trousers, high shoes, and a cap.

D Remove any combustibles, such as a butane lighter or matches,

from your person before doing any work.

D After completion of work, inspect area to ensure it is free of sparks,

glowing embers, and flames.

D Use only correct fuses or circuit breakers. Do not oversize or by-

pass them.

D Follow requirements in OSHA 1910.252 (a) (2) (iv) and NFPA 51B

for hot work and have a fire watcher and extinguisher nearby.

objects can cause sparks, explosion, overheating,

FLYING METAL or DIRT can injure eyes.

D Welding, chipping, wire brushing, and grinding

cause sparks and flying metal. As welds cool,
they can throw off slag.

D Wear approved safety glasses with side

shields even under your welding helmet.

NOISE can damage hearing.

Noise from some processes or equipment can
damage hearing.

D Wear approved ear protection if noise level is

high.

1-3. Additional Symbols For Installation, Operation, And Maintenance

FIRE OR EXPLOSION hazard.

D Do not install or place unit on, over, or near

combustible surfaces.

D Do not install unit near flammables.

D Do not overload building wiring − be sure power supply system is

properly sized, rated, and protected to handle this unit.

FALLING EQUIPMENT can injure.

D Use equipment of adequate capacity to lift and

support unit.

D Keep equipment (cables and cords) away from

moving vehicles when working from an aerial
location.

D Do not stand on the equipment.
D If applicable, bolt equipment to a smooth surface large and

strong enough to safely support it.

D Follow the guidelines in the Applications Manual for the Revised

NIOSH Lifting Equation (Publication No. 94−110) when manu­ally lifting heavy parts or equipment.

FLYING SPARKS can injure.

D Wear a face shield to protect eyes and face.
D Operate equipment with proper guards, and in

a safe location while wearing proper face, and
body protection.

D Sparks can cause fires — keep flammables away.

MOVING PARTS can injure.

D Keep away from moving parts.
D Keep all doors, panels, covers, and guards

closed and securely in place.

D Have only qualified persons remove doors, panels, covers, or

guards for maintenance and troubleshooting as necessary.

D Reinstall doors, panels, covers, or guards when maintenance is

finished and before reconnecting input power.

D Do not wear clothing, gloves, or jewelry, or other items that may

be caught in moving parts. Wear a hat or other covering to con­tain long hair.

D Do not make adjustments on moving equipment. Remove ad-

justing tools (keys, wrenches) before using equipment.

D Verify the switch is in the Off position before plugging in the

equipment.

D Use the equipment only for the recommended application and at

the specified rate. Do not use the equipment for tasks for which it
is not intended.

D Do not hold workpiece in your hand when using equipment. Use

a vice or clamp to hold workpiece.

READ INSTRUCTIONS.

D Read and follow all labels and the Owner’s

Manual carefully before installing, operating, or
servicing unit. Read the safety information at
the beginning of the manual and in each
section.

D Use only genuine replacement parts from the manufacturer.
D Perform maintenance and service according to the Owner’s

Manuals, industry standards, and national, state, and local
codes.

OM-254 206 Page 2

1-4. California Proposition 65 Warnings

Battery posts, terminals and related accessories contain lead
and lead compounds, chemicals known to the State of
California to cause cancer and birth defects or other
reproductive harm. Wash hands after handling.

1-5. Principal Safety Standards

National Electrical Code, NFPA Standard 70, from National Fire Protec­tion Association, Quincy, MA 02269 (phone: [phone], website:
www.nfpa.org and www. sparky.org).

Safe Practice For Occupational And Educational Eye And Face Protec­tion, ANSI Standard Z87.1, from American National Standards Institute,

25 West 43rd Street, New York, NY 10036 (phone: [phone], web­site: www.ansi.org).
OSHA, Occupational Safety and Health Standards for General Indus­try, Title 29, Code of Federal Regulations (CFR), Part 1910, Subpart Q,
and Part 1926, Subpart J, from U.S. Government Printing Office, Super­intendent of Documents, P.O. Box 371954, Pittsburgh, PA 15250-7954
(phone: [phone]) (there are 10 OSHA Regional Offices—
phone for Region 5, Chicago, is 312-353-2220, website:
www.osha.gov).

This product contains chemicals, including lead, known to
the state of California to cause cancer, birth defects, or other
reproductive harm. Wash hands after use.

Standard for Fire Prevention During Welding, Cutting, and Other Hot
Work, NFPA Standard 51B, from National Fire Protection Association,

Quincy, MA 02269 (phone: [phone], website: www.nfpa.org.
U.S. Consumer Product Safety Commission (CPSC), 4330 East West

Highway, Bethesda, MD 20814 (phone: [phone], website:
www.cpsc.gov).

Applications Manual for the Revised NIOSH Lifting Equation, The Na­tional Institute for Occupational Safety and Health (NIOSH), 1600
Clifton Rd, Atlanta, GA 30333 (phone: [phone], website:
www.cdc.gov/NIOSH).

OM-254 206 Page 3