Harbor Freight Tools 42321 User Manual

WORK AREA

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

accidents.

2. Do not operate compressors in explosive atmospheres, such as in the presence
of flammable liquids, gases, or dust. Compressors create sparks which may ignite
the dust or fumes.

3. Keep bystanders, children, and visitors away while operating a compressor.
Provide barriers or shields as needed.

ELECTRICAL SAFETY

1. Grounded compressors 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 compressors should electrically malfunction or break down,

grounding provides a low resistance path to carry electricity away from the user.

2. Do not expose compressors to rain or wet conditions. Water entering an electric
motor will increase the risk of electric shock.

3. Do not abuse the Power Cord. Never use the Power Cord to pull the Plug from an

outlet. Keep the Power Cord away from heat, oil, sharp edges, or moving parts.
Replace damaged Power Cords immediately. Damaged Power Cords increase the

risk of electric shock.

4. AN EXTENSION CORD MUST

this item to an outlet through an extension cord MAY CAUSE ELECTRICAL
DAMAGE TO THE MOTOR and could present a FIRE HAZARD.

NEVER BE USED WITH THIS ITEM. Connecting

PERSONAL SAFETY

1. Stay alert. Watch what you are doing, and use common sense during use. Do not
use while tired or under the influence of drugs, alcohol, or medication. A moment

of inattention while operating 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 turned off before plugging
in. Plugging in compressors with the Power Switch on, invites accidents.

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

5. Do not overreach. Keep proper footing and balance at all times.

SKU 42321 For technical questions, please call 1-800-444-3353. Page 3

6. Use safety equipment. Always wear eye protection. Make sure you are wearing
your protective clothing, safety glasses with side shields and dust mask or air respirator,
if appropriate.

TOOL USE AND CARE

1. Do not force the compressor. Use the correct compressor for your application.
The correct compressor will do the job better and safer at the rate for which it is designed.
Never attempt to force the compressor to provide more pressure than it was designed
for.

2. Do not use the compressor if the Power Switch does not turn it on or turn it off.
Any compressor that cannot be controlled with the Power Switch is dangerous and
must be repaired or replaced.

3. Disconnect the Power Cord Plug from the power source before making any
adjustments, changing accessories, or storing the compressor. Such preventive
safety measures reduce the risk of starting the compressor accidentally.

4. Keep idle compressors out of reach of children and other untrained persons.
Compressors are dangerous in the hands of untrained users.

5. Maintain compressors with care. Keep all components of this product clean and
dry. Do not use a damaged compressor. Tag damaged compressors “Do not use” until
repaired.

6. Check for misalignment or binding of moving parts, breakage of parts, and any

other condition that may affect the compressor’s operation. If damaged, have the
compressor serviced before using. Many accidents are caused by poorly maintained

compressors.

7. Use only accessories that are recommended by the manufacturer for your model.
Accessories that may be suitable for one compressor may become hazardous when
used on another compressor.

SERVICE

1. Compressor 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 compressor, use only identical replacement parts. Follow

instructions in the

Use of unauthorized parts or failure to follow maintenance instructions may create a
risk of electric shock or injury.

“Inspection, Maintenance, And Cleaning”

section of this manual.

SPECIFIC SAFETY RULES

1. CAUTION! Prior to its

sure to fill the Air Compressor with a premium quality, 30 weight, non-detergent
oil to the specified level. Running the Air Compressor with no oil or with low oil will

first

use, and thereafter prior to each

subsequent

use, make

SKU 42321 For technical questions, please call 1-800-444-3353. Page 4