Porter-Cable C7550 User manual

Part No. 1000003897-MAR08-0
Oil LubeTwo Stage
Air Compressor
Instruction
manual
To learn more about Porter-Cable
visit our website at:
http://www.porter-cable.com
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._______________________________________
FRANÇAIS: PÁGINA 25
ESPAÑOL: PAGE 53
MODEL
C7550
IMPORTANT
Please make certain that the person who
is to use this equipment carefully reads
and understands these instructions before
starting operations.
®
Copyright © 2005, 2008 Porter-Cable

2-ENG
1000003897
SAFETY GUIDELINES - DEFINITIONS
This manual contains information that is important for you to know and under-
stand. 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 symbols.
Indicates an
imminently hazardous
situation which, if not avoided, will
result in death or serious injury.
Indicates a potentially
hazardous situation
which, if not avoided, may result in
minor or moderate injury.
Indicates a potentially
hazardous situation
which, if not avoided, could result in
death or serious injury.
Used without the
safety alert symbol
indicates a potentially hazardous
situation which, if not avoided, may result
in property damage.
IMPORTANT SAFETY INSTRUCTIONS
This product contains chemicals known to the State of
California to cause cancer, and birth defects or other reproductive harm.
Wash hands after handling.
Some dust contains chemicals known to the State of
California to cause cancer, birth defects or other reproductive harm such as
asbestos and lead in lead based paint.
To reduce the risk of injury, read the instruction manual.
SAVE THESE INSTRUCTIONS
TABLE OF CONTENTS
Safety Guidelines/Definitions............... 2
Important Safety Instructions...........2-7
Specifications....................................... 8
Glossary................................................ 8
Duty Cycle ............................................ 8
Accessories .......................................... 8
Assembly .............................................. 9
Installation..................................... 10-11
Operaton....................................... 12-14
Maintenance................................. 15-19
Service and Adjustments................... 19
Storage ............................................... 20
Troubleshooting Guide................. 20-23
Warranty.............................................. 24
Français ........................................ 25-51
Español......................................... 52-78

3-ENG 1000003897
HAZARD
RISK OF EXPLOSION OR FIRE
WHAT CAN HAPPEN HOW TO PREVENT IT
• Itisnormalforelectricalcontacts
within the motor and pressure
switch to spark.
•Always operate the compressor
in a well ventilated area free of
combustible materials, gasoline, or
solvent vapors.
• Ifelectricalsparksfromcompressor
come into contact with flammable
vapors, they may ignite, causing fire
or explosion.
• Ifsprayingflammablematerials,locate
compressor at least 20 feet (6.1 m)
away from spray area. An additional
length of air hose may be required.
• Storeflammablematerialsinasecure
location away from compressor.
• Restrictinganyofthecompressor
ventilation openings will cause
serious overheating and could cause
fire.
• Neverplaceobjectsagainstoron
top of compressor.
• Operatecompressorinanopenarea
at least 12" (30.5 cm) 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.
Store unit indoors.
• Unattendedoperationofthis
product could result in personal
injury or property damage. To
reduce the risk of fire, do not
allow the compressor to operate
unattended.
• Alwaysremaininattendancewith
the product when it is operating.
• Disconnect electrical supply when
not in use.
HAZARD
RISK TO BREATHING (ASPHYXIATION)
WHAT CAN HAPPEN HOW TO PREVENT IT
• Thecompressedairdirectlyfrom
your compressor is not safe for
breathing. The air stream may
contain carbon monoxide, toxic
vapors, or solid particles from the air
tank. Breathing these contaminant's
can cause serious injury or death.
• Airobtaineddirectlyfromthe
compressor should never be used to
supply air for human consumption.
In order to use air produced by this
compressor for breathing, suitable
filters and in-line safety equipment
must be properly installed. In-line
filters and safety equipment used
in conjunction with the compressor
must be capable of treating air to all
applicable local and federal codes
prior to human consumption.

4-ENG
1000003897
• Exposuretochemicalsindustcreat-
ed by power sanding, sawing, grind-
ing, drilling, and other construction
activities may be harmful.
• Sprayedmaterialssuchaspaint,
paint solvents, paint remover, insec-
ticides, weed killers, may contain
harmful vapors and poisons.
• Workinanareawithgoodcross
ventilation. Read and follow the safe-
ty instructions provided on the label
or safety data sheets for the materi-
als you are spraying. Always use
certified safety equipment: NIOSH/
OSHA respiratory protection or prop-
erly fitting face mask designed for
use with your specific application.
HAZARD
RISK OF SERIOUS INJURY OR PROPERTY DAMAGE
WHEN TRANSPORTING COMPRESSOR
WHAT CAN HAPPEN HOW TO PREVENT IT
• 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.
• 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.
HAZARD
RISK OF BURSTING
Air Tank: The air tank on your Air Compressor is designed and may be UM coded
(for units with air tanks greater than 6 inch diameter) according to ASME Section
VIII, Div. 1 rules. All pressure vessels should be inspected once every two years.
To find your state pressure vessels inspector, look under the Division of Labor and
Industries in the government section of a phone book.
The following conditions could lead to a weakening of the air tank, and result in a
violent air tank explosion:
WHAT CAN HAPPEN HOW TO PREVENT IT
• Failuretoproperlydraincondensed
water from air tank, causing rust and
thinning of the steel air tank.
• Drainairtankdailyoraftereachuse.
If air tank develops a leak, replace it
immediately with a new air tank or
replace the entire compressor.
• Modificationsorattemptedrepairsto
the air tank. • Neverdrillinto,weld,ormakeany modifications to the air tank or its
attachments. Never attempt to
repair a damaged or leaking air tank.
Replace with a new air tank.
• Unauthorizedmodificationstothe
safety valve or any other components
which control air tank pressure.
• Theairtankisdesignedtowithstand
specific operating pressures.
Never make adjustments or parts
substitutions to alter the factory set
operating pressures.
• Excessivevibrationcanweakenthe
air tank of a stationary compressor
and cause an explosion.
• Thecompressormustbeproperly
mounted, see "Anchoring" under
Installation.

5-ENG 1000003897
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.
• Followtheequipmentmanufacturers
recommendation and never exceed
the maximum allowable pressure
rating of attachments. Never use
compressor to inflate small low
pressure objects such as children’s
toys, footballs, basketballs, etc.
HAZARD
RISK OF ELECTRICAL SHOCK
WHAT CAN HAPPEN HOW TO PREVENT IT
• Your air compressor is powered by
electricity. Like any other electrically
powered device, If it is not used
properly it may cause electric shock.
• Never operate the compressor
outdoors when it is raining or in wet
conditions.
• Never operate compressor with
protective covers removed or
damaged.
• Repairs attempted by unqualified
personnel can result in serious injury
or death by electrocution.
• 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.
• Electrical Grounding: Failure to
provide adequate grounding to this
product could result in serious injury
or death from electrocution. Refer to
"Grounding Instructions" paragraph
in the Installation section.
• Make certain that the electrical circuit
to which the compressor is connected
provides proper electrical grounding,
correct voltage and adequate fuse
protection.
HAZARD
RISK FROM FLYING OBJECTS
WHAT CAN HAPPEN HOW TO PREVENT IT
• 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.
• Alwayswearcertifiedsafety
equipment: ANSI Z87.1 eye
protection (CAN/CSA Z94.3)
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
and bleed pressure from the air
hose and air tank before attempting
maintenance, attaching tools or
accessories.

6-ENG
1000003897
HAZARD
RISK OF HOT SURFACES
WHAT CAN HAPPEN HOW TO PREVENT IT
• Touchingexposedmetalsuchas
the compressor head, engine head,
engine exhaust or outlet tubes, can
result in serious burns.
• 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.
HAZARD
RISK FROM MOVING PARTS
WHAT CAN HAPPEN HOW TO PREVENT IT
• Movingpartssuchasthepulley,
flywheel, and belt can cause serious
injury if they come into contact with
you or your clothing.
• Neveroperatethecompressor
with guards or covers which are
damaged or removed.
• Keepyourhair,clothing,andgloves
away from moving parts. Loose
clothes, jewelry, or long hair can be
caught in moving parts.
• Airventsmaycovermovingparts
and should be avoided as well.
• 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.
• Anyrepairsrequiredonthisproduct
should be performed by authorized
service center personnel.

7-ENG 1000003897
HAZARD
RISK OF UNSAFE OPERATION
WHAT CAN HAPPEN HOW TO PREVENT IT
• Unsafeoperationofyourair
compressor could lead to serious inju-
ry or death to you or others.
• Reviewandunderstandall
instructions and warnings in this
manual.
• Becomefamiliarwiththeoperation
and controls of the air compressor.
• Keepoperatingareaclearofall
persons, pets, and obstacles.
• Keepchildrenawayfromtheair
compressor at all times.
• Donotoperatetheproductwhen
fatigued or under the influence of
alcohol or drugs. Stay alert at all
times.
• Neverdefeatthesafetyfeaturesof
this product.
• Equipareaofoperationwithafire
extinguisher.
• Donotoperatemachinewithmissing,
broken, or unauthorized parts.
HAZARD
RISK OF INJURY FROM LIFTING
WHAT CAN HAPPEN HOW TO PREVENT IT
• Seriousinjurycanresultfrom
attempting to lift too heavy an
object.
• Thecompressoristooheavyto
be lifted by one person. Obtain
assistance from others before lifting.
HAZARD
RISK FROM NOISE
WHAT CAN HAPPEN HOW TO PREVENT IT
• Undersomeconditionsandduration
of use, noise from this product may
contribute to hearing loss.
• Alwayswearcertifiedsafetyequipment:
ANSI S12.6 (S3.19) hearing protection.
SAVE THESE INSTRUCTIONS

8-ENG
1000003897
SPECIFICATIONS
Model No. C7550
Running Horsepower 6.0
Voltage-Single Phase 240V
Minimum Branch Circuit Requirement 30 amps
*Fuse Type Time Delay
Air Tank Capacity, Gallons 80 ASME, Vertical
Approximate Cut-in Pressure 140 PSIG
Approximate Cut-out Pressure 175 PSIG
SCFM @ 100 psig 15.6
SCFM @ 175 psig 15.2
GLOSSARY
Become familiar with these terms before operating the unit.
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.
Code Certification: Products that bear one or more of the following marks: UL,
CUL, ETL, CETL, have been evaluated by OSHA certified independent safety labo-
ratories and meet the applicable Underwriters Laboratories Standards for Safety.
Cut-In Pressure: While the motor is off, air tank pressure drops as you continue
to use your accessory. 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 an air compressor is turned on and 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.
Branch Circuit: Circuit carrying electricity from electrical panel to outlet.
To Lock Out Power: Place a lock on the line power switch so no one else can turn
on the power.
DUTY CYCLE
This air compressor pump is capable of running continuously. However, to prolong
the life of your air compressor, it is recommended that a 50%-75% average duty
cycle be maintained; that is, the air compressor pump should not run more than
30-45 minutes in any given hour.
ACCESSORIES
Accessories for this unit are available at the store the unit was purchased.

9-ENG 1000003897
ASSEMBLY
Contents of Carton
1 - Air Compressor
1 - Parts bag containing:
1 - Owner’s Manual
4 - 5/8" Washers
1 - Conduit Connector
Tools Required for Assembly
1 - 9/16" socket or open end wrench
1 - Electric drill
Unpacking
1. Remove all packaging.
It may be necessary to brace or support one side of the
outfit when removing the pallet because the air compressor
will have a tendency to tip.
2. Remove and discard the (4) screws and washers holding the compressor to
the pallet.
3. With the help of another person carefully remove air compressor from pallet
and place on a level surface.
This compressor was shipped with oil in the pump crankcase.
Check oil before operating air compressor, see Check Oil
under Maintenance.
INSTALLATION
HOW TO SET UP YOUR UNIT
Location of the Air Compressor
• Locatetheaircompressorinaclean,dry,andwellventilatedarea.
• Locatedtheaircompressoratleast12"(30.5cm)awayfromthewallor
other obstructions that will interfere with the flow of air.
• Locatetheaircompressorasclosetothemainpowersupplyaspossible
to avoid using long lengths of electrical wiring. NOTE: Long lengths of
electrical wiring could cause power loss to the motor.
• Theairfiltermustbekeptclearofobstructionswhichcouldreduceairflow
to the air compressor.
Anchoring of the Air Compressor
Risk of Bursting. Excessive Vibration can weaken the air
tank and cause an explosion. The compressor must be
properly mounted.
The air compressor MUST be bolted to a solid, level surface.
Hardware needed:
4 - Concrete anchors (not supplied)
4 - 3/8" Lag screw to fit concrete anchors (not supplied)
4 - 5/8" Washer (supplied) shims (if needed)
1. Place the air compressor on a solid, level surface.
2. Mark the surface using the holes in the air compressor feet as a template.
3. Drill holes in the surface for the concrete anchors. Install concrete anchors.

10-ENG
1000003897
4. Line-up holes in surface with holes in air compressor feet.
5. Place the (4) washers (supplied) 3/8" Lag
Screw
(not supplied)
5/8" Washer
(supplied)
Shim Under
Washer
(not supplied) Concrete Anchor
(not supplied)
Surface Line
between the floor and air compressor
feet. If needed, solid shims may be
placed between the washers and
floor to evenly distribute weight on all
four feet. See next figure.
6. Place the (4) 3/8" lag screws through
the air compressor feet, washers,
shims, and into the anchors.
7. Torque 3/8" lag screws to
7 - 10 ft. lbs.
Wiring Instructions
Improper electrical installation of this product may void its war-
ranty and your fire insurance. Have circuit wiring performed by qualified personnel
such as a licensed electricians who is familiar with the current national electrical
code and any prevailing local electrical codes. Une mauvaise connexion
électrique de ce produit pourrait annuler la garantie et votre assurance contre les
incendies.
A qualified electrician needs to knows the following before wiring:
1. The amperage rating of the electrical box should be adequate. Refer to the
Specification Chart for this information.
2. The supply line should have the same electrical characteristics (voltage,
cycle, phase) as the motor. Refer to the motor nameplate, on side of motor,
for this information.
NOTE: The wiring must be the same as the motor nameplate voltage plus or
minus 10%. Refer to local codes for recommended wire sizes, correct wire size,
and maximum wire run; undersize wire causes high amp draw and overheating to
the motor.
Risk of Electrical Shock. Electrical wiring must be located
away from hot surfaces such as manifold assembly,
compressor outlet tubes, heads, or cylinders.
GROUNDING INSTRUCTIONS
This product should be connected to a metallic, permanent wiring system, of an
equipment-grounding terminal or lead on the product.

11-ENG 1000003897
Voltage and Circuit Protection
Refer to the specification chart for the voltage and minimum branch circuit
requirements.
Air Distribution System
Risk of Bursting. Plastic or PVC pipe is not designed for use
with compressed air. Regardless of its indicated pressure
rating, plastic pipe can burst from air pressure. Use only metal pipe for air
distribution lines.
The next figure represents a typical air distribution system. The following are tips to
remember when setting up the air compressor’s air distribution system.
•Use pipe that is the same size as the air tank outlet. Piping that is too small
will restrict the flow of air.
•If piping is over 100 feet (30.5 m) long, use the next larger size.
•Bury underground lines below the frost line and avoid pockets where con-
densation can gather and freeze. Apply pressure before underground lines
are covered to make sure all pipe joints are free of leaks.
•A flexible coupling is recommended to be installed between the air discharge
outlet and main air distribution line to allow for vibration.
•A separate regulator is recommended to control the air pressure. Air pressure
from the tank is usually to high for individual air driven tools.
DRAIN
TRAP
DRAIN
TRAPS
DRAIN
LEGS
MOISTURE
SEPARATOR
AND TRAP
DIRT
LEG
DIRT
LEG
LUBRICATOR
REGULATOR
FILTER
AIR DISCHARGE
VA LVE/ GLOBE VALV E
LUBRICATOR
MAIN DISTRIBUTION AIR LINES
Slope pipe in direction of air flow.
Water condensate flows along
bottom of pipe to drain legs,
preventing it from entering feeder
lines.
REGULATOR
FLEXIBLE
COUPLING
DRAIN COCK
VA LV E
TYPICAL COMPRESSED
AIR DISTRIBUTION SYSTEM
AIR FLOW AIR FLOW
FEEDER LINES SLOPE
WITH AIR FLOW
AIR USAGE
LINES
AIR
COMPRESSOR

12-ENG
1000003897
DESCRIPTION OF OPERATION
Become familiar with these controls before operating the unit.
On/Auto(I)/Off(0) Switch: Turn this switch "On/Auto (I)" to provide automatic
power to the pressure switch and "Off (O)" to remove power at the end of each
use.
Pressure Switch: 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: 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).
Tank Pressure Gauge: The tank pressure gauge indicates the reserve air pres-
sure in the tank.
Globe Valve: Opens and closes air discharge valve. Turn knob counter-clockwise
to open and clockwise to close.
Regulator (sold separately, not shown): An air pressure regulator or a separate
air transformer which combines the functions of air regulation and/or moisture and
dirt removal is recommended for most applications.
Cooling System (not shown): This compressor contains an advanced design
cooling system. At the heart of this cooling system is an engineered fan. It is per-
fectly normal for this fan to blow air through the vent holes in large amounts. You
know that the cooling system is working when air is being expelled.
Air Compressor Pump (not shown): Compresses air 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.
OPERATION
KNOW YOUR AIR COMPRESSOR
READ THIS OWNER’S MANUAL AND SAFETY RULES BEFORE OPERATING
YOUR UNIT. Compare the illustrations with your unit to familiarize yourself with
the location of various controls and adjustments. Save this manual for future refer-
ence.
Pressure Switch
Globe Valve
Tank Pressure
Gauge
Safety Valve
On/Auto(I)/Off(O) Switch

13-ENG 1000003897
Drain Valve: The drain valve is located at the base
Drain
Valve
of the air tank and is used to drain condensation
at the end of each use.
Check Valve: 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: The pressure release
Pressure
Release
Valve
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" pres-
sure 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 after the unit
reaches "cut-out" pressure.
Motor Overload Protector: This motor has a manual thermal overload protec-
tor. If the motor overheats for any reason, the overload protector will shut off the
motor. The motor must be allowed to cool down before restarting. To restart:
1. Place the On/Auto/Off lever in the "Off" position.
Reset
Button
2. Allow the motor to cool.
3. Depress the red reset button on the motor.
4. Place the On/Auto/Off lever in the "On/Auto" postion to
restart the motor.
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
"Maintenance".
HOW TO USE YOUR UNIT
How to Stop:
1. Set the On/Auto/Off lever to "Off".
Before Starting
Do not operate this unit until you read and understand this
instruction manual for safety, operation and maintenance
instructions.
Break-in Procedure
Risk of Property Damage. Serious damage may result if the
following break-in instructions are not
closely followed.
This procedure is required before the air compressor is put into service and
when the check valve or a complete compressor pump has been replaced.
1. Make sure the On/Auto/Off lever is in the "Off" position.
2. Check oil level in pump. See "Oil" paragraph in the Maintenance section for
instructions.
3.
Recheck all wiring. Make sure wires are secure at all terminals connections.
Make sure all contacts move freely and are not obstructed.

14-ENG
1000003897
4. Open the globe valve fully to permit air to escape and prevent air pressure
build up in the air tank during the break-in period.
5. Move the On/Auto/Off lever to "On/Auto" position. The compressor will start.
6. Run the compressor for 20 minutes. Make sure the globe valve is open and
there is minimal air pressure build-up in tank.
7. Check all air line fittings and connections/piping for air leaks by applying a
soap solution. Correct if necessary. NOTE: Minor leaks can cause the air
compressor to overwork, resulting in premature breakdown or inadequate
performance.
8. Check for excessive vibration. Readjust or shim air compressor feet, if
necessary.
9. After 20 minutes, close the globe valve. The air receiver will fill to "cut-out"
pressure and the motor will stop.
Before Each Start-Up:
1. Place On/Auto/Off lever to "Off".
2. Close the globe valve.
3. Attach hose and accessories.
Risk of unsafe operation. Firmly grasp air hose in hand when
installing or disconnecting to prevent hose whip.
Risk of unsafe operation. Do not use damaged or worn
accessories.
NOTE: A regulator MUST be installed when using accessories rated at less than
175 PSI.
NOTE: The hose or accessory will require a quick connect plug if the air outlet is
equipped with a quick connect socket.
Risk of Bursting. Too much air pressure causes a hazardous
risk of bursting. Check the manufacturer’s maximum pressure
rating for air tools and accessories. The regulator outlet pressure must never
exceed the maximum pressure rating.
Risk of unsafe operation. Compressed air from the unit may
contain water condensation and oil mist. Do not spray unfil-
tered air at an item that could be damaged by moisture. Some air tools and
accessories may require filtered air. Read the instructions for the air tools and
accessories.
How to Start:
1. Turn the On/Auto/Off lever to "On/Auto" and allow tank pressure to build.
Motor will stop when tank pressure reaches "cut-out" pressure.
2. When the tank pressure reaches "cut-out" pressure open the globe valve.
IMPORTANT: When using regulator and other accessories refer to the manufacturers
instructions.
If any unusual noise or vibration is noticed, stop the
compressor immediately and have it checked by a trained
service technician.
The compressor is ready for use.

15-ENG 1000003897
MAINTENANCE
CUSTOMER RESPONSIBILITIES
Before
each
use
Daily
or
after
each
use
Every
8
hours
Every
40
hours
Every
100
hours
Every
160
hours
Yearly
Check Safety Valve X
Drain Tank X
Oil Leaks X
Check Pump Oil X
Change Pump Oil X
Unusual Noise and/or
Vibration X
Air Filter X (1)
Drive Belt-Condition X
Motor Pulley/Flywheel
alignment X
Air compressor pump
intake and exhaust
valves
X
Inspect air lines and
fittings for leaks X
Head Bolts - Check the torques of the head bolts after the first five hours of operation.
1- more frequent in dusty or humid conditions
Risk of Unsafe Operation. Unit cycles automatically when
power is on. When servicing, you may be exposed to voltage
sources, compressed air, or moving parts. Before servicing unit unplug or
disconnect electrical supply to the air compressor, bleed tank of pressure,
and allow the air compressor to cool.
To ensure efficient operation and longer life of the air compressor, a routine mainte-
nance schedule should be prepared and followed. The above routine maintenance
schedule is geared to an air compressor in a normal working environment operating
on a daily basis. If necessary, the schedule should be modified to suit the condi-
tions under which your air compressor is used. The modifications will depend upon
the hours of operation and the working environment. Compressors in an extremely
dirty and/or hostile environment will require a greater frequency of all maintenance
checks.
NOTE: See Operation section for the location of controls.
TO CHECK SAFETY VALVE
Risk of Bursting. If the safety valve does not work properly,
over-pressurization may occur, causing air tank rupture or an
explosion.
Risk from Flying Objects. Always wear certified safety
equipment: ANSI Z87.1 eye protection (CAN/CSA Z94.3) with
side shields.
1. Before starting compressor, pull the ring on the safety valve to make
sure that the safety valve operates freely. If the valve is stuck or does not
operate smoothly, it must be replaced with the same type of valve.

16-ENG
1000003897
TO DRAIN TANK
Risk of Unsafe Operation. Risk from noise. Air tanks
contain high pressure air. Keep face and other body parts
away from outlet of drain. Use ANSI Z87.1 eye protection (CAN/CSA Z94.3)
when draining as debris can be kicked up into face. Use ear protection (
ANSI
S12.6 (S3.19) hearing protection)
as air flow noise is loud when draining.
NOTE: Operation of the air compressor will cause condensation to build up in the
air tank. Always drain tank on a washable surface or in a suitable container to pre-
vent damaging or staining surfaces.
1. Set the On/Auto/Off lever to "Off".
2. Close the globe valve.
3. Remove the air tool or accessory.
4. Open the globe valve and allow the air to slowly bleed from the air tank until
tank pressure is approximately 20 PSI.
5. Close the globe valve.
6. Drain water from air tank by opening drain valve on bottom of tank.
Risk of Bursting. Water will condense in the air tank. If not
drained, water will corrode and weaken the air tank causing
a risk of air tank rupture.
Risk of Property Damage. Drain water from air tank may
contain oil and rust which can cause stains.
7. After the water has been drained, close the drain valve. The air compressor
can now be stored.
NOTE: If drain valve is plugged, release all air pressure. The valve can then be
removed, cleaned, then reinstalled.
OIL
Use air compressor oil only. Multi-weight automotive engine
oils like 10W30 should not be use in air compressors. They
leave carbon deposits on critical components, thus reducing performance
and compressor life.
NOTE: Use 30W compressor oil or a heavy duty SAE 30W, non-detergent, SF
grade or better oil DO NOT use multi-weight automotive engine oils, they will
reduce compressor life. Under extreme winter condition use SAE-10 weight oil.
NOTE: Crankcase oil capacity is approximately 48 fluid ounces (1.4 L).
Checking
1. The oil level should be to the middle of the sight glass (C).
2. If needed remove oil fill plug (A) and slowly add oil until it reaches the middle
of the sight glass.
Changing
1. Remove the oil fill plug (A).
C
B
A
2. Remove the oil drain plug (B) and drain
oil into a suitable container.
3. Replace the oil drain plug (B) and tight-
en securely.
4. Slowly add compressor oil until the oil
level is in the middle of the sightglass
(C). NOTE: When filling the crankcase,
the oil flows very slowly into the pump.
If the oil is added too quickly, it will
overflow and appear to be full.

17-ENG 1000003897
Risk of Unsafe Operation. Overfilling with oil will cause
premature compressor failure. Do not overfill.
5. Replace oil fill plug (A) and tighten securely.
AIR FILTER - INSPECTION AND REPLACEMENT
Hot surfaces. Risk of burn. Compressor heads are exposed
when filter cover is removed. Allow compressor to cool
prior to servicing.
Keep the air filter clean at all times. Do not operate the air
compressor with the air filter removed.
Adirtyairfilterwillnotallowthecompressortooperateatfullcapacity.Keepthe
air filter clean at all times.
1. Remove air filter.
2. Remove the air filter cover.
3. Remove the air filter from filter cover.
IMPORTANT: Do not operate the compressor with the air filter removed.
4. Place new air filter into filter cover. Refer to the Repair Parts for the correct
part number.
5. Replace air filter cover and reassemble air filter to pump.
BELT - REPLACEMENT
(Refer to the Parts List for replacement belt part number.)
Serious injury or damage may occur if parts of the body or
loose items get caught in moving parts. Never operate the
outfit with the belt guard removed. The belt guard should be removed only
when the air compressor power is disconnected.
1. Turn air compressor off, lock out the power supply, and relieve all air pres-
sure from the air tank.
2. Remove the belt guard.
3. Mark pump position on saddle.
4. Loosen the motor mounting screws and slide the motor toward the air
compressor.
5. Remove the belt and replace with a new one.
Risk of moving parts. Use caution when rolling belt onto
flywheel, fingers can get caught between the belt and
flywheel.
6. See the "Adjust Belt Tension" before tightening motor mounting screws.
ADJUSTING BELT TENSION
1. Slide motor into original position,
Downward Force
Deflection
line the motor up with the mark
made earlier on saddle.
2. Tighten two outside motor mounting
screws enough to hold the motor
in place for checking pulley and fly-
wheel alignment.
3. The belt should deflect 3/16"
(4.8 mm) at midway between the
pulley and the flywheel when a 5-10
pound weight is applied at the mid-
way point.

18-ENG
1000003897
3. When proper belt tension is achieved, tighten all four motor mounting screws.
See Parts list for torque specifications.
NOTE: Once the engine pulley has been moved from its factory set location,
the grooves of the flywheel and pulley must be aligned to within 1/16" (1.6 mm)
to prevent excessive belt wear. Verify the alignment by performing the following
Pulley and Flywheel - Alignment.
MOTOR PULLEY/FLYWHEEL ALIGNMENT
NOTE: Once the motor pulley has been moved from its factory set location, the
grooves of the flywheel and pulley must be aligned to within 1/16" (1.6 mm) to
prevent excessive belt wear.
The air compressor flywheel and motor pulley must be in-line (in the same plane)
within 1/16" (1.6 mm) to assure belt retention within flywheel belt grooves. To
check alignment, perform the following steps:
1. Turn air compressor off, lock out the power supply, and relieve all air pressure
from the air tank.
2. Remove belt guard.
3. Place a straightedge against the outside of the flywheel and the motor drive
pulley.
4. Measure the distance between the
edge of the belt and the straightedge
at points A1 and A2 in figure. The
difference between measurements
should be no more than 1/16"
(1.6 mm).
5. If the difference is greater than
1/16" (1.6 mm) loosen the set screw
holding the motor drive pulley to the shaft and adjust the pulley’s position on
the shaft until the A1 and A2 measurements are within 1/16" (1.6 mm) of each
other.
6. Tighten the motor drive pulley set screw. See Parts manual for torque
specifications.
7. Visually inspect the motor drive pulley to verify that it is perpendicular to the
drive motor shaft. Points B1 and B2 of Figure should appear to be equal. If
they are not, loosen the setscrew of the motor drive pulley and equalize B1
and B2, using care not to disturb the belt alignment performed in step 2.
8. Retighten the motor drive pulley setscrew. See Parts manual for torque
specifications.
9. Reinstall belt guard.
AIR COMPRESSOR PUMP INTAKE AND EXHAUST VALVES
Once a year have a Trained Service Technician check the air compressor pump
intake and exhaust valves.
INSPECT AIR LINES AND FITTINGS FOR LEAKS
1. Turn air compressor off, lock out the power supply, and relieve all air pressure
from the air tank.
2. Apply a soap solution to all air line fittings and connections/piping.
3. Correct any leaks found.
IMPORTANT: Even minor leaks can cause the air compressor to overwork,
resulting in premature breakdown or inadequate performance.

19-ENG 1000003897
AIR COMPRESSOR HEAD BOLTS - TORQUING
The air compressor pump head bolts should be kept properly torqued. Check
the torques of the head bolts after the first five hours of operation. Retighten if
necessary. See Parts List for torque specifications.
SERVICE AND ADJUSTMENTS
ALL MAINTENANCE AND REPAIR OPERATIONS NOT LISTED MUST BE
PERFORMED BY TRAINED SERVICE TECHNICIAN.
Risk of Unsafe Operation. Unit cycles automatically when
power is on. When servicing, you may be exposed to voltage
sources, compressed air, or moving parts. Before servicing unit unplug or
disconnect electrical supply to the air compressor, bleed tank of pressure,
and allow the air compressor to cool.
TO REPLACE OR CLEAN CHECK VALVE
1. Release all air pressure from air tank. See "To Drain Tank" in the Maintenance
section.
2. Turn air compressor off, lock out the power supply, and relieve all air pressure
from the air tank.
3. Using an adjustable wrench loosen outlet tube nut at air tank and pump.
Carefully move outlet tube away from check valve.
4. Using an adjustable wrench loosen pressure relief tube nut at air tank and
pressure switch. Carefully move pressure relief tube away from check valve.
5. Unscrew the check valve (turn counterclockwise) using a 7/8" open end
wrench. NOTE the orientation for reassembly.
6. Usingascrewdriver,carefullypushthe
In closed position
disc is visible.
In open
position
nothing is
visible.
Screwdriver
valve disc up and down. NOTE: The
valve disc should move freely up
and down on a spring which holds
the valve disc in the closed position,
if not the check valve needs to be
cleaned or replaced.
7. Clean or replace the check valve.
A solvent, such as paint or varnish
remover can be used to clean the
check valve.
8. Apply sealant to the check valve
threads. Reinstall the check valve (turn clockwise).
9. Replace the pressure release tube. Tighten nuts.
10. Replace the outlet tube and tighten nuts.
11. Perform the Break-in Procedure. See "Break-in Procedure" in the Operation
section.
ADDITIONAL SERVICE
Disassembly or service of the air compressor beyond what is covered in this
manual is not recommended. If additional service is required, contact your
nearest Authorized Warranty Service Center.

20-ENG
1000003897
STORAGE
Before you store the air compressor, make sure you do the following:
1. Review the Maintenance section on the preceding pages and perform sched-
uled maintenance as necessary.
2. Set the On/Off switch to "Off" and unplug unit.
3. Turn the regulator counterclockwise and set the outlet pressure to zero.
4. Remove the air tool or accessory.
5. Pull ring on safety valve allowing air to bleed from the tank until tank pressure
is approximately 20 PSI. Release safety valve ring.
6. Drain water from air tank by opening drain valve on bottom of tank.
Risk of Bursting. Water will condense in the air tank. If not
drained, water will corrode and weaken the air tank causing a risk of air tank
rupture.
7. After the water has been drained, close drain valve by turning clockwise.
NOTE: If drain valve is plugged, release all air pressure. The valve can then be
removed, cleaned, then reinstalled.
8. Protect the electrical cord and air hose from damage (such as being stepped
on or run over).
9. Store the air compressor in a clean and dry location.
SERVICE
REPLACEMENT PARTS
Use only identical replacement parts. For a parts list or to order parts, visit our
website at servicenet.porter-cable.com. You can also order parts from your near-
est factory-owned branch,or by calling our Customer Care Center at 1-888-848-
5175 to receive personalized support from highly-trained technicians.
SERVICE AND REPAIRS
All quality tools will eventually require servicing and/or replacement of parts. For
information about Porter-Cable, its factory-owned branches, or an Authorized
Warranty Service Center, visit our website at deltaportercable.com or call our
Customer Care Center at (888)-848-5175. All repairs made by our service cen-
ters are fully guaranteed against defective material and workmanship. We cannot
guarantee repairs made or attempted by others.
You can also write to us for information at PORTER-CABLE, 4825 Highway 45
North, Jackson, Tennessee 38305 - Attention: Product Service. Be sure to include
all of the information shown on the nameplate of your tool (model number, type,
serial number, etc.).
ACCESSORIES
AcompletelineofaccessoriesisavailablefromyourPorter-Cable•DeltaSupplier,
Porter-Cable•DeltaFactoryServiceCenters,andPorter-CableAuthorizedService
Stations. Please visit our Web Site deltaportercable.com for a catalog or for the
name of your nearest supplier.
Since accessories other than those offered by Porter‑Cable•Delta
have not been tested with this product, use of such accessories could be hazardous.
For safest operation, only Porter‑Cable•Delta recommended accessories should be
used with this product.