Harbor Freight Tools 66984 Product manual

SAVE THIS MANUAL

Keep this manual for the safety
warnings and precautions, assembly,
operating, inspection, maintenance and
cleaning procedures. Write the product’s
serial number in the back of the manual near
the assembly diagram (or month and year of
purchase if product has no number). Keep
this manual and the receipt in a safe and dry
place for future reference.

NOTICE is used to
address practices

not related to personal injury.

CAUTION, without

the safety alert
symbol, is used to address
practices not related to
personal injury.

IMPORTANT SAFETY

Safety Alert Symbol and Signal

Words

In this manual, on the labeling,
and all other information
provided with this product:

This is the safety alert

symbol. It is used to alert
you to potential personal
injury hazards. Obey all
safety messages that
follow this symbol to avoid
possible injury or death.

DANGER indicates

a hazardous
situation which, if not
avoided, will result in death or
serious injury.

WARNING

indicates a
hazardous situation which, if
not avoided, could result in
death or serious injury.

CAUTION, used

with the safety
alert symbol, indicates a
hazardous situation which, if
not avoided, could result in
minor or moderate injury.

INSTRUCTIONS

INSTRUCTIONS PERTAINING

TO A RISK OF FIRE,

ELECTRIC SHOCK, OR

INJURY TO PERSONS

WARNING – When using tools, basic

precautions should always be
followed, including the following:

General

a. To reduce the risks of electric

shock, fire, and injury to persons,
read all the instructions before
using the tool.

Work area

a. Keep the work area clean and well

lighted. Cluttered benches and dark

areas increase the risks of electric
shock, fire, and injury to persons.

b. Do not operate the tool in

explosive atmospheres, such as in
the presence of flammable liquids,
gases, or dust. The tool is able to

create sparks resulting in the ignition
of the dust or fumes.

c. Keep bystanders, children, and

visitors away while operating the

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tool. Distractions are able to result in
the loss of control of the tool.

conditions. Wear heavy-duty work
gloves during use.

Personal safety

a. Stay alert. Watch what you are

doing and use common sense
when operating the tool. Do not
use the tool while tired or under
the influence of drugs, alcohol, or
medication. A moment of inattention

while operating the tool increases the
risk of injury to persons.

b. Dress properly. Do not wear loose

clothing or jewelry. Contain long
hair. Keep hair, clothing, and
gloves away from moving parts.

Loose clothes, jewelry, or long hair
increases the risk of injury to persons
as a result of being caught in moving
parts.

c. Avoid unintentional starting.

Be sure the switch is off before
connecting to the air supply. Do not

carry the tool with your finger on the
switch or connect the tool to the air
supply with the switch on.

d. Remove adjusting keys and

wrenches before turning the tool
on. A wrench or a key that is left

attached to a rotating part of the tool
increases the risk of personal injury.

e. Do not overreach. Keep proper

footing and balance at all times.

Proper footing and balance
enables better control of the tool in
unexpected situations.

f.

Use safety equipment. A
dust mask, non-skid safety
shoes and a hard hat must
be used for the applicable

g.

h. Always wear hearing

noise is able to cause hearing loss.

Always wear eye
protection. Wear ANSI-

approved safety goggles.

protection when using
the tool. Prolonged

exposure to high intensity

Tool use and care

a. Use clamps or another practical

way to secure and support the
workpiece to a stable platform.

Holding the work by hand or against
the body is unstable and is able to
lead to loss of control.

b. Do not force the tool. Use the

correct tool for the application. The
correct tool will do the job better and
safer at the rate for which the tool is
designed.

c. Do not use the tool if the switch

does not turn the tool on or off.
Any tool that cannot be controlled
with the switch is dangerous and
must be repaired.

d. Disconnect the tool from the

air source before making
any adjustments, changing
accessories, or storing the tool.

Such preventive safety measures
reduce the risk of starting the tool
unintentionally. Turn off and detach
the air supply, safely discharge any
residual air pressure, and release the
throttle and/or turn the switch to its off
position before leaving the work area.

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e. Store the tool when it is idle out

of reach of children and other
untrained persons. A tool is

dangerous in the hands of untrained
users.

f. Maintain the tool with care. A

properly maintained tool is easier to
control.

breakage of the tool or serious injury
to persons. Use only clean, dry,
regulated compressed air at the rated
pressure or within the rated pressure
range as marked on the tool. Always
verify prior to using the tool that the
air source has been adjusted to the
rated air pressure or within the rated
air-pressure range.

g. Check for misalignment or binding

of moving parts, breakage of
parts, and any other condition
that affects the tool’s operation.

If damaged, have the tool serviced
before using. Many accidents are
caused by poorly maintained tools.
There is a risk of bursting if the tool is
damaged.

h. Use only accessories that are

identified by the manufacturer for
the specific tool model. Use of an

accessory not intended for use with
the specific tool model, increases the
risk of injury to persons.

Service

a. Tool service must be performed

only by qualified repair personnel.

b. When servicing a tool, use only

identical replacement parts. Use
only authorized parts.

b. Never use oxygen, carbon dioxide,

combustible gases or any bottled
gas as an air source for the tool.

Such gases are capable of explosion
and serious injury to persons.

SAVE THESE
INSTRUCTIONS.

SYMBOLS AND

SPECIFIC SAFETY

INSTRUCTIONS

Symbol Denitions

Symbol Property or statement

n

o

.../min

PSI

No-load speed

Revolutions or reciprocation per
minute

Pounds per square inch of pressure

c. Use only the lubricants supplied

with the tool or specified by the
manufacturer.

Air source

a. Never connect to an air

source that is capable of
exceeding 90 PSI. Over

pressurizing the tool may

cause bursting, abnormal operation,

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ft-lb

BPM

CFM

SCFM

NPT

Foot-pounds of torque

Blows per minute

Cubic Feet per Minute ow

Cubic Feet per Minute ow at

standard conditions

National pipe thread, tapered

Chart continued in next column.

Symbol Denitions

Symbol Property or statement

NPS

National pipe thread, straight

A loose accessory may detach or
break during operation.

5. Obey the manual for the air
compressor used to power this tool.

WARNING marking concerning Risk
of Eye Injury. Wear ANSI-approved
eye protection.

WARNING marking concerning Risk
of Hearing Loss. Wear hearing
protection.

WARNING marking concerning Risk
of Respiratory Injury. Wear NIOSH­approved dust mask/respirator.

WARNING marking concerning Risk
of Explosion.

Specific Safety Instructions

1. The warnings and precautions
discussed in this manual cannot
cover all possible conditions and
situations that may occur. It must
be understood by the operator that
common sense and caution are
factors which cannot be built into this
product, but must be supplied by the
operator.

2. WARNING: The brass components
of this product contain lead, a
chemical known to the State of
California to cause birth defects (or
other reproductive harm). (California
Health & Safety code § 25249.5, et
seq.)

3. Only use with accessories rated to
handle the forces exerted by this tool
during operation. Other accessories
not designed for the forces generated
may break and forcefully launch
pieces.

4. Attach all accessories properly to the
tool before connecting the air supply.

6. Install an in-line shutoff valve to allow
immediate control over the air supply
in an emergency, even if a hose is
ruptured.

7. Use this tool with both hands only.
Using tools with only one hand can
result in loss of control.

8. Do not lay the tool down until it has
come to a complete stop. Moving
parts can grab the surface and pull
the tool out of your control.

Vibration Precautions

This tool vibrates during use.

Repeated or long-term exposure to
vibration may cause temporary or
permanent physical injury, particularly to
the hands, arms and shoulders. To reduce
the risk of vibration-related injury:

1. Anyone using vibrating tools regularly
or for an extended period should
first be examined by a doctor and
then have regular medical check­ups to ensure medical problems are
not being caused or worsened from
use. Pregnant women or people
who have impaired blood circulation
to the hand, past hand injuries,
nervous system disorders, diabetes,
or Raynaud’s Disease should not use
this tool. If you feel any symptoms
related to vibration (such as tingling,
numbness, and white or blue fingers),
seek medical advice as soon as
possible.

2. Do not smoke during use. Nicotine
reduces the blood supply to the

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