MasterCraft 099-9059-4, 54-2733-6 Owner's Manual

1/2" IMPACT WRENCH

099-9059-4

Owner’s Manual

PRODUCT SPECIFICATIONS

Motor:

120 V AC, 60 Hz, 3.5 A

Speed:

0–3200 RPM (no load)

Impact speed:

0–3200 BPM

Torque:

220 ft/lbs

Square drive:

1/2”

Weight:

4 lb 7 oz (2.0 kg)

TOLL FREE HELPLINE 1-800-689-9928

Imported by Mastercraft Canada Toronto, Canada M4S 2B8

2

Product specifications ………….…………………………………………………….

1

Table of contents ……………………………………………………………………...

2

General safety warnings ……………………………………………………………..

3–4

Eye, ear & lung protection ……………………………………………………………

3–4

Electrical safety ……………………………………………………………………….

4

Power tool safety ……………………………………………………………………...

5–6

General safety rules …………………………………………………………………..

5

Work area ………………………………………………………………….…………..

5

Electrical safety ……………………………………………………………………….

5

Personal safety ………………………………………………………………………..

5–6

Use and care of power tools .………………………………………………………..

6

Service …………………………………………………………………………………

6

Specific safety rules …………………………………………………………………..

7

Extension cord safety ………………………………………………………………...

8

Symbols ………………………………………………………………………………..

9

Know your impact wrench ……………………………………………………………

10

Accessories ……………………………………………………………………………

10

Contents ……………………………………………………………………………….

11

Assembly and operation ……………………………………………………………..

12–15

Installing impact sockets ……………………………………………………………..

12

Forward/reverse button ………………………………………………………………

12–13

Variable speed trigger switch ………………………………………………………..

13

Removing fasteners …………………………………………………………………..

14–15

Maintenance …………………………………………………………………………..

16

Exploded view …………………………………………………………………………

17

Parts list ………………………………………………………………………………..

18–19

Warranty ……………………………………………………………………….………

20–21

TABLE OF CONTENTS

3

EYE, EAR & LUNG PROTECTION

This instruction manual includes the following:

 General Safety Rules
 Specific Safety Rules and Symbols
 Functional Description
 Assembly
 Operation
 Maintenance
 Accessories

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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 operation of a power tool.

SAVE THESE INSTRUCTIONS FOR REFERENCE

WARNING: Use hearing protection, particularly during extended
periods of operation of the tool or if the operation is noisy.

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GENERAL SAFETY WARNINGS

CAUTION: Before using this tool or any of its accessories, read this

manual and follow all Safety Rules and Operating Instructions.

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4

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 110–120 V operation. It must be
connected to a 110–120 V 15 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.

GENERAL SAFETY WARNINGS

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.

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5

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 personal
injury.

WORK AREA

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

Do not operate power tools in potentially
explosive environments, such as in the
presence of flammable liquids, gas or dust.
Power tools create sparks that may ignite
the dust or fumes.

Keep bystanders, children and visitors
away while operating the tool. Distractions
can cause the operator to lose control.

ELECTRICAL SAFETY

Double insulated tools are equipped with a
polarized plug (one blade is wider than the
other). This plug will only fit into a
polarized plug one way.

If the plug does not fit into the outlet
properly, reverse the plug. If it still does not
fit, contact a qualified electrician to install a
polarized outlet. Do not alter the plug in
any way. Double insulation eliminates the
need for the three-prong grounded power
cord and grounded power supply system.

Avoid contact between the operator's body
and grounded surfaces such as pipes,
radiators, ranges, and refrigerators. There
is an increased risk of electric shock if the
operator's body is grounded.

Do not expose power tools to rain or wet
conditions. Water entering the power tool
will increase the risk of electric shock.

Do not abuse the cord. Do not use the
power cord to carry the tool or to pull the
plug out of the outlet. Keep the power cord
away from heat, oil, sharp edges, and
moving parts. Replace a damaged power
cord immediately. A damaged power cord
increases the risk of electric shock.

When operating a power tool outdoors,
use an outdoor extension cord marked
“W-A” or “W”. These cords are rated for
outdoor use and they reduce the risk of
electric shock.

PERSONAL SAFETY

Stay alert, be aware of the surroundings,
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 a power tool
could result in serious personal injury.

Dress properly. Do not wear loose clothing
or jewellery.

Contain long hair. Keep hair, clothing, and
gloves away from moving parts. Loose
clothing, jewellery, or long hair can get
caught in moving parts.

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POWER TOOL SAFETY

6

PERSONAL SAFETY – cont’d

Avoid accidental start-ups. Verify that the
switch is in the OFF position before
plugging the tool in. Carrying a power tool
with a finger on the switch or plugging in a
tool that has the switch in the ON position
invites accidents.

Remove adjusting keys and wrenches
before turning the tool ON. A wrench or
key that is left attached to a rotating part of
the tool may result in personal injury.

Do not overreach. Keep proper footing and
balance at all times. Proper footing and
balance allows the operator to maintain
better control of the tool in unexpected
situations.

Use safety equipment. Always wear eye
protection.

Use a dust mask, non-skid safety shoes, a
hardhat, or hearing protection when
appropriate.

USE AND CARE OF POWER TOOLS
Use clamps or another practical means to

secure and support the workpiece to a
stable platform. Holding the work in a hand
or against the body is not stable, and may
lead to loss of control.

Do not force the tool. Use the correct tool
for the application. The correct tool will do
the job better and safer when it is used at
the rate that it was designed to work at.

Do not use a power tool if it cannot be
turned ON or OFF using the power switch.
A tool that cannot be controlled using the
switch is dangerous, and must be repaired.

Disconnect the plug from the outlet before
making any adjustments, changing
accessories, or storing the tool. Such
preventive safety measures reduce the risk
of accidental start-ups.

When power tools are not in use, store
them out of the 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
cutting tools with sharp cutting edges are
less likely to bind, and are easier to
control.

Inspect the tool for misalignment or binding
of moving parts, broken parts, and any
other condition that may affect the
operation of the tool. If it is damaged, have
the tool serviced before using it. Many
accidents are caused by poorly maintained
tools.

Use only accessories that are
recommended by the manufacturer for this
model. Accessories that are suitable for
one tool may become hazardous when
used with another tool.

SERVICE
Tools must be serviced by qualified

personnel. Service or maintenance
performed by non-qualified personnel
could result in a risk of injury.

When servicing a tool, use only identical
replacement parts. Follow the instructions
in the Maintenance section of this Manual.
The use of unauthorized parts, or failure to
follow the instructions in the Maintenance
section of this Manual may create a risk of
electric shock or injury.

POWER TOOL SAFETY

7

WARNING: Know your impact
wrench. Read the Owner’s Manual

carefully. 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. Any power

tool can throw foreign objects
into your eyes and cause
permanent eye damage.

ALWAYS wear safety goggles
(not glasses) that comply with 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.

Always use hearing protection when
operating the impact wrench.

Use only impact sockets and accessories
that are designed for use with an impact
wrench. Do not use chrome plated sockets
and accessories. Chrome plated sockets
and accessories are designed for hand
use only and MUST NOT be used with an
impact wrench. They may shatter and
possibly cause serious injury.

Before each use, check the impact sockets
and accessories for excessive wear or
cracks. Worn or damaged sockets or
accessories may shatter and possibly
cause serious injury. Worn accessories
may allow the socket to come off during
operation of the impact wrench.

Never use the impact wrench as a torque
wrench. Always use a torque wrench to
adjust the fastener to the specified torque.

Keep the impact wrench handle and body
clean and free of oil and grease. Always
use a clean dry cloth when cleaning. Do
not use solvents, brake fluid, gasoline or
other petroleum products to clean the tool.
They will damage the tool.

Do not wear neckties or loose clothing.
When wearing gloves, they must be tight

fitting and slip resistant type. Leather
gloves offer the best protection.

Always use two hands when operating the
impact wrench. Use one hand on the
handle and the other on the front of the
tool body.

Never place your hand so it is touching the
socket or accessory when the tool is
turned ON. Your hand could be seriously
injured.

Always remove the plug from the power
source before installing or removing any
socket or accessory.

Be ready for components to shift when
removing any fastener. The speed of the
fastener removal could cause unexpected
shifting of the components.

SPECIFIC SAFETY RULES

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