The Model and Serial No. plate is located on the
frame. Record these numbers in the spaces below
and retain for future reference.
Model No.
Type
Serial No.
Part No. D24938-103-1
SAFETY GUIDELINES - DEFINITIONS
This manual contains information that is important for you to know and understand. This information relates to protecting YOUR SAFETY and PREVENTING EQUIPMENT PROBLEMS. To
help you recognize this information, we use the symbols below. Please read the manual and
pay attention to these sections.
DANGER indicates an imminently
hazardous situation which, if not
avoided, will result in death or
serious injury.
WARNING indicates a potentially
hazardous situation which, if not
avoided, could result in death orserious injury.
Call our Toll Free Number 1-888-559-8550, to obtain the location of the nearest Authorized Service Center for ordering repair parts and for warranty repairs.
When ordering repair parts from your local Authorized Service Center, always give the
following information:
• Model number of your compressor
• Part number and description of the item you wish to purchase
Retain Original Sales Receipt as Proof of Purchase for Warranty Repair Work.
CAUTION indicates a potentially
hazardous situation which, if not
avoided, may result in minor or
moderate injury.
CAUTION used without the safety
alert symbol indicates a potentially
hazardous situation which, if not
avoided, may result in property
damage.
IMPORTANT SAFETY INSTRUCTIONS
When using electric tools, basic safety precautions
should always be followed to reduce the risk of fire, electric shock
and personal injury, including the following:
READ AND FOLLOW ALL INSTRUCTIONS.
This tool was designed for certain applications. Porter-Cable strongly recommends
that this tool NOT be modified and/or used for any application, other than for which
it was designed. If you have any questions relative to its application DO NOT use
the tool until you have written Porter-Cable and we have advised you.
Technical Service Manager
Porter-Cable Corporation
4825 Highway 45 North
P.O. Box 2468
Jackson, TN 38302-2468
D24938
2-ENG
IMPORTANT SAFETY INSTRUCTIONS (cont’d)
SAVE THESE INSTRUCTIONS
IMPROPER OPERATION OR MAINTENANCE OF THIS PRODUCT COULD RESULT IN SERIOUS INJURY
AND PROPERTY DAMAGE. READ AND UNDERSTAND ALL WARNINGS AND OPERATING
INSTRUCTIONS BEFORE USING THIS EQUIPMENT.
HAZARD
RISK OF EXPLOSION OR FIRE
WHAT CAN HAPPEN
IT IS NORMAL FOR ELECTRICAL CONTACTS
WITHIN THE MOTOR AND PRESSURE SWITCH TO
SPARK.
IF ELECTRICAL SPARKS FROM COMPRESSOR
COME INTO CONTACT WITH FLAMMABLE
VAPORS, THEY MAY IGNITE, CAUSING FIRE OR
EXPLOSION.
RESTRICTING ANY OF THE COMPRESSOR
VENTILATION OPENINGS WILL CAUSE SERIOUS
OVERHEATING AND COULD CAUSE FIRE.
UNATTENDED OPERATION OF THIS PRODUCT
COULD RESULT IN PERSONAL INJURY OR
PROPERTY DAMAGE.
ALWAYS OPERATE THE COMPRESSOR IN A WELL
VENTILATED AREA FREE OF COMBUSTIBLE
MATERIALS, GASOLINE OR SOLVENT VAPORS.
IF SPRAYING FLAMMABLE MATERIALS, LOCATE
COMPRESSOR AT LEAST 20 FEET AWAY FROM
SPRAY AREA. AN ADDITIONAL LENGTH OF HOSE
MAY BE REQUIRED.
STORE FLAMMABLE MATERIALS IN A SECURE
LOCATION AWAY FROM COMPRESSOR.
NEVER PLACE OBJECTS AGAINST OR ON TOP
OF COMPRESSOR. OPERATE COMPRESSOR IN
AN OPEN AREA AT LEAST 12 INCHES AWAY FROM
ANY WALL OR OBSTRUCTION THAT WOULD
RESTRICT THE FLOW OF FRESH AIR TO THE
VENTILATION OPENINGS.
OPERATE COMPRESSOR IN A CLEAN, DRY, WELL
VENTILATED AREA. DO NOT OPERATE UNIT
INDOORS OR IN ANY CONFINED AREA.
ALWAYS REMAIN IN ATTENDANCE WITH THE
PRODUCT WHEN IT IS OPERATING.
HOW TO PREVENT IT
RISK OF BURSTING
AIR TANK: THE FOLLOWING CONDITIONS COULD LEAD TO A WEAKENING OF THE TANK, AND RESULT
IN A VIOLENT TANK EXPLOSION AND COULD CAUSE PROPERTY DAMAGE OR SERIOUS INJURY.
WHAT CAN HAPPEN
1. FAILURE TO PROPERLY DRAIN CON-
DENSED WATER FROM THE TANK,
CAUSING RUST AND THINNING OF THE
STEEL TANK.
2. MODIFICATIONS OR ATTEMPTED REPAIRS
TO THE TANK.
3. UNAUTHORIZED MODIFICATIONS TO THE
UNLOADER VALVE, SAFETY VALVE, OR
ANY OTHER COMPONENTS WHICH
CONTROL TANK PRESSURE.
4. EXCESSIVE VIBRATION CAN WEAKEN THE
AIR TANK AND CAUSE RUPTURE OR
EXPLOSION.
ATTACHMENTS & ACCESSORIES:
EXCEEDING THE PRESSURE RATING OF AIR
TOOLS, SPRAY GUNS, AIR OPERATED
ACCESSORIES, TIRES AND OTHER INFLATABLES
CAN CAUSE THEM TO EXPLODE OR FLY APART,
AND COULD RESULT IN SERIOUS INJURY.
DRAIN TANK DAILY OR AFTER EACH USE. I F TANK
DEVELOPS A LEAK, REPLACE IT IMMEDIATELY
WITH A NEW TANK OR REPLACE THE ENTIRE
COMPRESSOR.
NEVER DRILL INTO, WELD, OR MAKE ANY
MODIFICATIONS TO THE TANK OR ITS
ATTACHMENTS.
THE TANK IS DESIGNED TO WITHSTAND SPECIFIC
OPERATING PRESSURES. NEVER MAKE
ADJUSTMENTS OR PARTS SUBSTITUTIONS TO
ALTER THE FACTORY SET OPERATING
PRESSURES.
FOR ESSENTIAL CONTROL OF AIR PRESSURE,
YOU MUST INSTALL A PRESSURE REGULATORAND PRESSURE GAUGE TO THE AIR OUTLET OF
YOUR COMPRESSOR. FOLLOW THE EQUIPMENT
MANUFACTURERS RECOMMENDATION AND
NEVER EXCEED THE MAXIMUM ALLOWABLE
PRESSURE RATING OF ATTACHMENTS. NEVER
USE COMPRESSOR TO INFLATE SMALL LOWPRESSURE OBJECTS SUCH AS CHILDREN’S
TOYS, FOOTBALLS, BASKETBALLS. ETC.
3-ENG
HOW TO PREVENT IT
D24938
IMPORTANT SAFETY INSTRUCTIONS (cont’d)
RISK FROM FLYING OBJECTS
WHAT CAN HAPPEN
THE COMPRESSED AIR STREAM CAN CAUSE
SOFT TISSUE DAMAGE TO EXPOSED SKIN AND
CAN PROPEL DIRT, CHIPS, LOOSE PARTICLES
AND SMALL OBJECTS AT HIGH SPEED,
RESULTING IN PROPERTY DAMAGE OR PERSONAL
INJURY.
RISK TO BREATHING
WHAT CAN HAPPEN
THE COMPRESSED AIR FROM YOUR
COMPRESSOR IS NOT SAFE FOR BREATHING!
THE AIR STREAM MAY CONTAIN CARBON
MONOXIDE, TOXIC VAPORS OR SOLID PARTICLES
FROM THE TANK.
SPRAYED MATERIALS SUCH AS PAINT, PAINT
SOLVENTS, PAINT REMOVER, INSECTICIDES,
WEED KILLERS, CONTAIN HARMFUL VAPORS AND
POISONS.
HOW TO PREVENT IT
ALWAYS WEAR ANSI Z87.1 APPROVED SAFETY
GLASSES WITH SIDE SHIELDS WHEN USING THE
COMPRESSOR.
NEVER POINT ANY NOZZLE OR SPRAYER TOWARD
ANY PART OF THE BODY OR AT OTHER PEOPLE
OR ANIMALS.
ALWAYS TURN THE COMPRESSOR OFF ANDBLEED PRESSURE FROM THE AIR HOSE AND
TANK BEFORE ATTEMPTING MAINTENANCE,
ATTACHING TOOLS OR ACCESSORIES.
HOW TO PREVENT IT
ALWAYS OPERATE AIR COMPRESSOR OUTSIDE
IN A CLEAN, WELL VENTILATED AREA. AVOID
ENCLOSED AREAS SUCH AS GARAGES,
BASEMENTS, STORAGE SHEDS, WHICH LACK A
STEADY EXCHANGE OF AIR. KEEP CHILDREN,
PETS AND OTHERS AWAY FROM AREA OF
OPERATION.
NEVER INHALE AIR FROM THE COMPRESSOR
EITHER DIRECTLY OR FROM A BREATHING DEVICE
CONNECTED TO THE COMPRESSOR.
WORK IN AN AREA WITH GOOD CROSSVENTILATION. READ AND FOLLOW THE SAFETY
INSTRUCTIONS PROVIDED ON THE LABEL ORSAFETY DATA SHEETS FOR THE MATERIAL YOU
ARE SPRAYING. USE A NIOSH/MSHA APPROVED
RESPIRATOR DESIGNED FOR USE WITH YOUR
SPECIFIC APPLICATION.
RISK OF ELECTRICAL SHOCK
WHAT CAN HAPPEN
YOUR AIR COMPRESSOR IS POWERED BY
ELECTRICITY. LIKE ANY OTHER ELECTRICALLYPOWERED DEVICE, IF IT IS NOT USED PROPERLY
IT MAY CAUSE ELECTRIC SHOCK.
REPAIRS ATTEMPTED BY UNQUALIFIED
PERSONNEL CAN RESULT IN SERIOUS INJURY OR
DEATH BY ELECTROCUTION.
ELECTRICAL GROUNDING: FAILURE TO PROVIDE
ADEQUATE GROUNDING TO THIS PRODUCT
COULD RESULT IN SERIOUS INJURY OR DEATH
FROM ELECTROCUTION. SEE GROUNDING
INSTRUCTIONS.
D24938
HOW TO PREVENT IT
NEVER OPERATE THE COMPRESSOR OUTDOORS
WHEN IT IS RAINING OR IN WET CONDITIONS.
NEVER OPERATE COMPRESSOR WITH COVER
COMPONENTS REMOVED OR DAMAGED.
ANY ELECTRICAL WIRING OR REPAIRS
REQUIRED ON THIS PRODUCT SHOULD BE
PERFORMED BY AUTHORIZED SERVICE
CENTER PERSONNEL IN ACCORDANCE WITH
NATIONAL AND LOCAL ELECTRICAL CODES.
MAKE CERTAIN THAT THE ELECTRICAL CIRCUIT
TO WHICH THE COMPRESSOR IS CONNECTED
PROVIDES PROPER ELECTRICAL GROUNDING,
CORRECT VOLTAGE AND ADEQUATE FUSE
PROTECTION.
4-ENG
IMPORTANT SAFETY INSTRUCTIONS (cont’d)
RISK FROM MOVING PARTS
WHAT CAN HAPPEN
MOVING PARTS SUCH AS THE PULLEY,FLYWHEEL, AND BELT CAN CAUSE SERIOUS
INJURY IF THEY COME INTO CONTACT WITH YOU
OR YOUR CLOTHING.
ATTEMPTING TO OPERATE COMPRESSOR WITH
DAMAGED OR MISSING PARTS OR ATTEMPTING
TO REPAIR COMPRESSOR WITH PROTECTIVE
SHROUDS REMOVED CAN EXPOSE YOU TO
MOVING PARTS AND CAN RESULT IN SERIOUS
INJURY.
RISK OF BURNS
WHAT CAN HAPPEN
TOUCHING EXPOSED METAL SUCH AS THECOMPRESSOR HEAD OR OUTLET TUBES, CAN
RESULT IN SERIOUS BURNS.
RISK OF FALLING
WHAT CAN HAPPEN
A PORTABLE COMPRESSOR CAN FALL FROM A
TABLE, WORKBENCH OR ROOF CAUSING
DAMAGE TO THE COMPRESSOR AND COULD
RESULT IN SERIOUS INJURY OR DEATH TO THE
OPERATOR OR BYSTANDERS.
HOW TO PREVENT IT
NEVER OPERATE THE COMPRESSOR WITH
GUARDS OR COVERS WHICH ARE DAMAGED OR
REMOVED.
ANY REPAIRS REQUIRED ON THIS PRODUCT
SHOULD BE PERFORMED BY AUTHORIZED
SERVICE CENTER PERSONNEL.
HOW TO PREVENT IT
NEVER TOUCH ANY EXPOSED METAL PARTS ON
COMPRESSOR DURING OR IMMEDIATELY AFTER
OPERATION. COMPRESSOR WILL REMAIN HOT
FOR SEVERAL MINUTES AFTER OPERATION.
DO NOT REACH AROUND PROTECTIVE SHROUDS
OR ATTEMPT MAINTENANCE UNTIL UNIT HAS
BEEN ALLOWED TO COOL.
HOW TO PREVENT IT
ALWAYS OPERATE COMPRESSOR IN A STABLE
SECURE POSITION TO PREVENT ACCIDENTALMOVEMENT OF THE UNIT. NEVER OPERATE
COMPRESSOR ON A ROOF OR OTHER ELEVATED
POSITION. USE ADDITIONAL AIR HOSE TO
REACH HIGH LOCATIONS.
RISK OF PROPERTY DAMAGE WHEN
TRANSPORTING COMPRESSOR
(Fire, Inhalation, Damage
to Vehicle Surfaces)
WHAT CAN HAPPEN
OIL CAN LEAK OR SPILL AND COULD RESULT
IN FIRE OR BREATHING HAZARD, SERIOUS
INJURY OR DEATH CAN RESULT. OIL LEAKS WILL
DAMAGE CARPET, PAINT OR OTHER SURFACES
IN VEHICLES OR TRAILERS.
ESWESW
-99 — 9/26/99-99 — 9/26/99
ESW
-99 — 9/26/99
ESWESW
-99 — 9/26/99-99 — 9/26/99
HOW TO PREVENT IT
ALWAYS PLACE COMPRESSOR ON A PROTECTIVE
MAT WHEN TRANSPORTING TO PROTECT
AGAINST DAMAGE TO VEHICLE FROM LEAKS.
REMOVE COMPRESSOR FROM VEHICLE
IMMEDIATELY UPON ARRIVAL AT YOUR
DESTINATION.
5-ENG
D24938
GLOSSARY
CFM: Cubic feet per minute.
SCFM: Standard cubic feet per minute; a unit of measure of air delivery.
PSIG: Pounds per square inch gauge; a unit of measure of pressure.
ASME: American Society of Mechanical Engineers; made, tested, inspected, and
registered to meet the standards of ASME.
California Code: Unit may comply with California Code 462 (l) (2)/(M) (2).
Specification/model label is on the side of the tank on units that comply with
California Code.
Cut-In Pressure: While the motor is off, air tank pressure drops as you continue to
use your accessory or air tool. When the tank pressure drops to a certain low level
the motor will restart automatically. The low pressure at which the motor
automatically restarts is called “cut-in pressure.”
Cut-Out Pressure: When you turn on your air compressor and it begins to run, air
pressure in the air tank begins to build. It builds to a certain high pressure before
the motor automatically shuts off - protecting your air tank from pressure higher
than its capacity. The high pressure at which the motor shuts off is called “cut-out
pressure.”
Code Certification: Products that bear one or more of the following marks: UL,
CUL, ETL, CETL, have been evaluated by OSHA certified independent safety
laboratories and meet the applicable Underwriters Laboratories Standards for
Safety.
DUTY CYCLE
Porter-Cable air compressors should be operated on not more than a 50% duty
cycle. This means an air compressor that pumps air more than 50% of one hour is
considered misuse, because the air compressor is undersized for the required air
demand. Maximum compressor pumping time per hour is 30 minutes.
2. Circuit is not used to supply any other electrical needs (lights, appliances, etc.)
3. Extension cords comply with specifications in owners manual.
4. Circuit is equipped with 15 amp circuit breaker or 15 amp time delay fuse.
If any of the above conditions cannot be met, or if operation of the air compressor
repeatedly causes interruption of the power it may be necessary to operate it from
a 20 amp circuit. It is not necessary to change the cord set.
** A circuit breaker is preferred. Use only a fuse or circuit breaker that is the same rating
as the branch circuit on which the air compressor is operated. If the air compressor is
connected to a circuit protected by fuses, use dual element time delay fuses.
D24938
This air compressor can be operated on a 15 amp circuit if:
6-ENG
Drain Valve (A) Fig. 1: The drain valve is located at the base of
DESCRIPTION OF OPERATION
the air tank and is used to drain condensation at the end of
each use.
Motor Thermal Overload Protector (not shown): The
electric motor has an automatic thermal overload protector. If
the motor overheats for any reason, the thermal overload
protector will shut off the motor. The motor must be allowed to
cool before restarting.
G
B
F
D
I
ON/AUTO OFF Switch (B) Fig. 2: Turn this
switch ON to provide automatic
Fig. 1
A
power to the pressure switch and
OFF to remove power at the end of
each use.
Air Intake Filter (not shown): This
filter is designed to clean air coming
into the pump. This filter
must always
be clean and ventilation openings
free from obstructions. See
H
E
C
"Maintenance".
Air Compressor Pump (not shown):
To compress air, the piston moves up
and down in the cylinder. On the
Fig. 2
downstroke, air is drawn in through
the air intake valves. The exhaust
valve remains closed. On the upstroke of the piston, air is compressed. The intake
valves close and compressed air is forced out through the exhaust valve, into the outlet
tube, through the check valve and into the air tank. Working air is not available until the
compressor has raised the air tank pressure above that required at the air outlet.
Check Valve (C) Fig. 2: When the air compressor is operating, the check valve is
“open”, allowing compressed air to enter the air tank. When the air compressor
reaches “cut-out” pressure, the check valve “closes”, allowing air pressure to remain
inside the air tank.
Pressure Release Valve (I) Fig. 2: The pressure release valve located on the side of
the pressure switch, is designed to automatically release compressed air from the
compressor head and the outlet tube when the air compressor reaches “cut-out”
pressure or is shut off.
The pressure release valve allows the motor to restart freely.
When the motor stops running, air will be heard escaping from this valve for a few
seconds. No air should be heard leaking when the motor is running, or continuous
leaking after unit reaches cut-out pressure.
Pressure Switch (D) Fig. 2: The pressure switch automatically starts the motor when
the air tank pressure drops below the factory set “cut-in” pressure. It stops the motor
when the air tank pressure reaches the factory set “cut-out” pressure.
Safety Valve (E) Fig. 2: If the pressure switch does not shut off the air compressor at its
cut-out pressure setting, the safety valve will protect against high pressure by “popping
out” at its factory set pressure (slightly higher than the pressure switch cut-out setting).
Outlet Pressure Gauge (F) Fig. 2: The outlet pressure gauge indicates the air pressure
available at the outlet side of the regulator. This pressure is controlled by the regulator
and is always less than or equal to the tank pressure.
Tank Pressure Gauge (G) Fig. 2: The tank pressure gauge indicates the reserve air
pressure in the tank.
Regulator (H) Fig. 2: The air pressure coming from the air tank is controlled by the
regulator knob. Turn the knob clockwise to increase pressure and counterclockwise to
decrease pressure. To avoid minor readjustment after making a change in pressure
setting, always approach the desired pressure from a lower pressure. When reducing
from a higher to a lower setting, first reduce to some pressure less than that desired,
then bring up to the desired pressure. Depending on the air requirements of each
particular accessory, the outlet regulated air pressure may have to be adjusted while
you are operating the accessory.
7-ENG
D24938
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