Northern Industrial Tools 150611 Manuale utente

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

WARNING!

READ AND UNDERSTAND ALL INSTRUCTIONS

Failure to follow all instructions listed in the following

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

SAVE THESE INSTRUCTIONS

UNPACKING

When unpacking, check to make sure all the parts shown on the Parts List on page 12

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.

noitpircseDmetI

Electrical

Requirem ents

120V / 60 Hz / 8.5 AM Ps.

Pow er Plug Type: 2 Prong, P olarized.

Pow er Switch Type: Rocker w/Forward &

Reverse.

Drive Size 3/4".

Im pacts Per Minute 1700 BPM.

Ft./Lbs. Torque 400 Ft./Lbs.

Construction Poly-Plastic, High Carbon Steel.

Cast Aluminum, Rubber.

Unit W eight 12.7 6 Pounds.

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.

PERSONAL SAFETY

1. 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.

2. 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.

3. 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.

4. 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.

5. 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.

6. Use safety equipment. Always wear ANSI approved safety goggles

underneath a full face shield, a dust mask or respirator, and hearing

protection.

TOOL USE AND CARE

1. Use clamps or other practical ways to secure and support the workpiece to

a stable platform. Holding the work by hand is unstable and may lead to loss of

control. Only work on a workpiece that is properly secured.

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 flammables.

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

invite accidents.

WORK AREA

2. 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.

3. 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.

4. 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.

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

are dangerous in the hands of untrained users.

6. Maintain tools with care. Do not use a damaged tool. Tag damaged tools “Do

not use” until repaired.

7. Check for misalignment or binding of moving parts, breakage of parts,

cracking or breakage of the Cut-Off Wheel, 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.

8. 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

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

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

2. 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.

1. 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

ELECTRICAL SAFETY

break down, grounding provides a low resistance path to carry electricity away

from the user.

2. 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.

3. 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.

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

tool will increase the risk of electric shock.

5. 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 immedi-

ately. Damaged Power Cords increase the risk of electric shock.

6. 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.

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.

DOUBLE INSULATED TOOLS: TOOLS WITH TWO PRONG PLUGS

1. 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 A.)

2. Double insulated tools may be used in either of the 120 volt outlets shown in the

following illustration. (See Figure A.)

EXTENSION CORDS

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 B, 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 B.)

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 B.)

FIGURE A

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 B.)

6. 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.

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

electrician before using it.

8. Protect your extension cords from sharp objects, excessive heat, and damp or

wet areas.

SYMBOLOGY

V ~

xxxx/min.

FIGURE C

Double Insulated

Canadian Standards

Association

Underwriters

Laboratories, Inc.

Volts Alternating

Current

Amperes

No Load Revolutions

Per Minute (RPM)

RECOMMENDED MINIMUM WIRE GAUGE FOR EXTENSION CORDS*

(120 VOLT)

NAMEPLATE

AMPERES

(At Full Load)

EXTENSION CORD LENGTH

FEET

100

FEET

150

FEET

0-2.0 18 18 18 18 16

2.1-3.4 18 18 18 16 14

3.5-5.0 18 18 16 14 12

5.1-7.0 18 16 14 12 12

7.1-12.0 16 14 12 10 -

12.1-16.0 14 12 10 - -

16.1-20.0 12 10 - - -

*Based on limiting the line voltage drop

to five volts at 150% of the rated amperes.

FIGURE B

SPECIFIC SAFETY RULES

1. Maintain labels and nameplates on the Impact Wrench. These carry important

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

replacement.

2. When using the Impact Wrench, always maintain a firm grip on the tool with

both hands (one hand on side handle and one on main handle).

3. Do not use the Impact Wrench if it has been dropped, damaged, left

outdoors, or immersed in liquid.

4. To avoid electrical shock, do not pull or carry the Impact Wrench by its

Power Cord or pull the Power Cord around sharp corners or edges. Do not

unplug the Impact Wrench by pulling on the Power Cord. Keep the Power Cord

away from heated surfaces.

5. To avoid electrical shock, do not handle the Impact Wrench with wet hands.

6. Keep the Handle of the Impact Wrench dry, clean, free from oil and

grease.

7. Always turn off the Impact Wrench and unplug the tool from its electrical

outlet before changing accessories or performing any inspection,

maintenance, or cleaning procedures.

8. Industrial applications must follow OSHA requirements.

9. Use the right tool or attachment for the right job. Do not attempt to force a

small tool or attachment to do the work of a larger industrial tool or attachment.

There are certain applications for which this product was designed. It will do the

job better and more safely at the rate for which it was intended. Do not modify

this product, and do not use this product for a purpose for which it was not

intended.

10. WARNING! People with pacemakers should consult their physician(s)

before using this product. Operation of electrical equipment in close proximity to

a heart pacemaker could cause interference or failure of the pacemaker.

11. 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.

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

to the Assembly Diagram on page 13.

1. WARNING! Always make sure the Rocker Switch (39) of the Impact

Wrench is in its “OFF” position and the tool is unplugged from its electrical outlet

prior to making any adjustments to the tool. (See Figure D.) Note: When your

finger is off the Rocker Switch (39), the tool is in the “OFF” position.

2. Rocker Switch (39): The Rocker Switch is operated

manually

simply by squeezing

the Switch to turn on the Impact Wrench and releasing pressure on the Switch to

turn off the Impact Wrench. The Rocker Switch features a forward/reverse mechanism

which allows you to change the rotational direction of the Impact Wrench. For

clockwise

rotation, squeeze the lower portion of the Rocker Switch. For a

counterclockwise

rotation, squeeze the upper portion of the Rocker Switch. To

avoid damage to the Impact Wrench, always wait until the tool completely stops

before changing rotational directions. (See Figure D.)

3. 3/4" Impact Head (10): The 3/4" Impact Head features a spring and ball clip

to securely hold a socket. The Impact Head accepts all sizes of standard and

metric sockets having a 3/4" drive. (See Figure D.)

PRODUCT FEATURES

IMPACT HEAD

(10)

ROCKER SWITCH

(39)

FORWARD (CLOCKWISE)

REVERSE (COUNTERCLOCKWISE)

FIGURE D

POWER CORD

(46)

OPERATING INSTRUCTIONS

1. Before installing a socket (not included), turn off the Impact Wrench and unplug the

tool from its electrical outlet before changing accessories. Then, firmly insert a

3/4" drive socket (not included) onto the 3/4" Impact Head (10) of the tool. Note: Only

use impact sockets with this tool. (See Figure D.)

2. Whenever possible, secure the workpiece in place, using a vise or clamps (not

included).

3. Insert the socket onto the nut that is to be loosened/tightened.

1. WARNING! Always make sure the Rocker Switch (39) is in its “OFF”

position, and unplug the Power Cord (46) from its 120 volt electrical outlet

before performing any inspection, adjustments, maintenance, or cleaning.

4. Plug the Power Cord (46) of the Impact Wrench into the nearest 120 volt,

grounded, electrical outlet. (See Figure D.)

5. Make sure to hold the Impact Wrench firmly with both hands, as torque from the

Motor will cause the tool to twist. Then squeeze the

upper

portion of the Rocker

Switch (39) to

loosen

the nut, or squeeze the

lower

portion of the Rocker Switch

tighten

the nut. (See Figure D.)

6. When finished, release the Rocker Switch (39) to stop the Impact Wrench. Then,

unplug the Power Cord (46) from its electrical outlet. (See Figure D.)

7. Make sure to store the Impact Wrench in its Carrying Case (57) and in a dry,

clean, location out of reach of children and other unauthorized people.

INSPECTION, MAINTENANCE, AND CLEANING

2. Before each use: Inspect the general condition of the Impact Wrench. Check

for loose screws, misalignment or binding of moving parts, cracked or broken

parts, damaged electrical wiring, and any other condition that may affect its safe

operation. If abnormal noise or vibration occurs, have the problem corrected

before further use. Do not use damaged equipment.

3. Daily: Use a clean cloth and mild detergent to remove all dirt and debris from

the Impact Wrench. Do not use solvents. Do not immerse the Impact Wrench in

any liquid.

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