Porter-Cable C5101 User manual

Single-Stage Oilfree
Compressor
Instruction
manual
The Model and Serial No. plate is located on the main
housing of the tool. Record these numbers in the
spaces below and retain for future reference.
Model No. ______________________________________
Type ___________________________________________
Serial No. ______________________________________
IMPORTANT
Please make certain that the person who
is to use this equipment carefully reads
and understands these instructions before
starting operations.
Part No. A10208-054-0
®
ESPAÑOL: PÁGINA 23
FRANÇAIS : PAGE 45
To learn more about Porter-Cable
visit our website at:
http://www.porter-cable.com
MODEL
C5101
Copyright © 2005 Porter-Cable Corporation

2- ENG
A10208
SAFETY GUIDELINES - DEFINITIONS
Indicates an imminent-
ly hazardous situation
which, if not avoided, will result in death
or serious injury.
Indicates a potentially
hazardous situation
which, if not avoided, could result in
death or serious injury.
Indicates a potentially
hazardous situation
which, if not avoided, may result in minor
or moderate injury.
Used without the
safety alert symbol
indicates a potentially hazardous situation
which, if not avoided, may result in
property damage.
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.
IMPORTANT SAFETY INSTRUCTIONS
Some dust created by power sanding, sawing, grinding,
drilling, and other construction activities contains chemi-
cals known (to the State of California) to cause cancer, birth defects or
other reproductive harm. Some example of these chemicals are:
• lead from lead-based paints
• crystalline silica from bricks and cement and other masonry products
• arsenic and chromium from chemically-treated lumber
Your risk from these exposures varies, depending on how often you do
this type of work. To reduce your exposure to these chemicals: work in
a well ventilated area, and work with approved safety equipment, always
wear MSHA/NIOSH approved, properly fitting face mask or respirator when
using such tools.
When using air tools, basic safety precautions should always be followed
to reduce the risk of of personal injury.

3- ENG A10208
IMPORTANT SAFETY INSTRUCTIONS
Save these instructions
Improper operation or maintenance of this product could result in serious injury and
property damage. Read and understand all warnings and operation instructions before
using this equipment.
HAZARD
WARNING: Risk of explosion or fire
How To Prevent It
What Could 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 explo-
sion.
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. To reduce the risk
of fire, do not allow the compressor to
operate unattended.
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.
Always disconnect electrical power by
moving pressure switch lever to the off
position and drain tank daily or after
each use.

4- ENG
A10208
WARNING: 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.
How To Prevent It
What Could Happen
WARNING: Risk from Flying Objects
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 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 and
bleed pressure from the air hose and tank
before attempting maintenance, attaching
tools or accessories.
HAZARD
HAZARD
Drain tank daily or after each use. If tank
develops a leak, replace it immediately
with a new tank or replace the entire
compressor.
Failure to properly drain condensed
water from tank, causing rust and
thinning of the steel tank.
Modifications or attempted repairs to
the tank.
Unauthorized modifications to the
unloader valve, safety valve, or any
other components which control tank
pressure.
Never drill into, weld, or make any
modifications to the tank or its
attachments.
Excessive vibration can weaken the
air tank and cause rupture or
explosion
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 regulator and
pressure gauge to the air outlet (if not
equipped) of your compressor. 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.
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.
How To Prevent It
What Could Happen

5- ENG A10208
WARNING: Risk to Breathing
WARNING: Risk of Electrical Shock
HAZARD
HAZARD
Your air compressor is powered by
electricity. Like any other electrically
powered 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.
Never operate the compressor outdoors
when it is raining or in wet conditions.
Never operate compressor with
protective covers 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 pro-
tection.
Sprayed materials such as paint, paint
solvents, paint remover, insecticides,
weed killers, may contain harmful
vapors and poisons.
Work in an area with good cross
ventilation. Read and follow the safety
instructions provided on the label or
safety data sheets for the materials
you are spraying. Use a NIOSH/MSHA
approved respirator designed for use
with your specific application.
How To Prevent It
What Could Happen
How To Prevent It
What Could Happen
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 tank. Breathing these
contaminants 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.

6- ENG
A10208
WARNING: Risk of Burns
Touching exposed metal such as the
compressor head 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.
WARNING: Risk from Moving Parts
Never operate the compressor with
guards or covers which are damaged or
removed.
Moving parts such as the pulley,
flywheel, and belt can cause serious
injury if they come into contact with you
or your clothing.
WARNING: Risk of Falling
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.
Always operate compressor in a stable
secure position to prevent accidental
movement of the unit. Never operate
compressor on a roof or other elevated
position. Use additional air hose to
reach high locations.
HAZARD
HAZARD
HAZARD
Any repairs required on this product
should be performed by authorized
service center personnel.
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.
How To Prevent It
What Could Happen
How To Prevent It
What Could Happen
How To Prevent ItWhat Could Happen

7- ENG A10208
Review and understand all instructions
and warnings in this manual.
Become familiar with the operation and
controls of the air compressor.
Keep operating area clear of all persons,
pets, and obstacles.
Keep children 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 features of this
product.
Equip area of operation with a fire
extinguisher.
Do not operate machine with missing,
broken, or unauthorized parts.
WARNING: Risk of Unsafe Operation
Unsafe operation of your air compressor
could lead to serious injury or death to
you or others.
HAZARD
WARNING: Risk of Serious Injury or Property Damage
When Transporting Compressor
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.
(Fire, Inhalation, Damage to Vehicle Surfaces)
HAZARD
SAVE THESE INSTRUCTIONS
How To Prevent It
What Could Happen
How To Prevent It
What Could Happen

8- ENG
A10208
GLOSSARY
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.
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
laboratories 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.
SPECIFICATIONS
Accessories for this unit are available at the store the unit was purchased.
ACCESSORIES
Model Nos. C5101
Running Horsepower 1.7
Bore 2-3/8"
Stroke 1.35"
Voltage/Hz-Single Phase 60/120
Minimum Branch Circuit Requirement 15 amps
Fuse Type Time Delay
Air Tank Capacity (Gallon) 20
Approximate Cut-in Pressure 120 PSIG
Approximate Cut-out Pressure 150 PSIG
SCFM @ 40 PSIG 7.2
SCFM @ 90 PSIG 5.3

9- ENG A10208
ASSEMBLY
Assemble Handle
1. To make installation easier,
submerge handle grip into
warm soapy water. Remove
handle grip from soapy water
and slide onto handle.
2. Insert the handle inside the
compressor saddle and line
up the two bolt holes on each
side.
3. Install the four screws, two on
each side.
4. Tighten securely.
Assemble Wheels
It will be necessary to brace or support one side of the
outfit when installing the wheels because the compressor
will have a tendency to tip.
1. Attach wheels with shoulder bolts and nuts as shown. NOTE: Place the
bolts in the bottom hole of the wheel bracket.
2. Tighten securely. NOTE: The outfit will sit level if the wheels are properly
installed.
The wheels and handle do not provide adequate
clearance, stability or support for pulling the unit up and
down stairs or steps. The unit must be lifted, or pushed up a ramp.
Assemble Rubber Feet
1. Attach rubber feet with the screws provided as shown in previous figure.
2. Tighten securely.
Rubber Feet
Screw
Nut
Wheel
Shoulder Bolt
Handle
Tools Required for Assembly
1 - 9/16" socket or open end wrench
1 - 3/8" socket or open end wrench
1 - 1/2" socket or open end wrench
Unpacking
1. Remove unit from carton and discard all packaging. NOTE: Save all parts
bags.
Screw
Handle Grip

10- ENG
A10208
GROUNDING INSTRUCTIONS
Risk of Electrical Shock. In the event of a short circuit,
grounding reduces the risk of shock by providing an
escape wire for the electric current. This air compressor must be properly
grounded.
The portable air compressor is equipped with a cord having a grounding wire
with an appropriate grounding plug (see following illustrations).
1. The cord set and plug with this unit contains a grounding pin. This plug
MUST be used with a grounded outlet.
IMPORTANT: The outlet being used must be installed and grounded in accor-
dance with all local codes and ordinances.
2. Make sure the outlet being used
has the same configuration as the
grounded plug. DO NOT USE AN
ADAPTER. See illustration.
3. Inspect the plug and cord before
each use. Do not use if there are
signs of damage.
4. If these grounding instructions are
not completely understood, or if in
doubt as to whether the compressor is properly grounded, have the instal-
lation checked by a qualified electrician.
Risk of Electrical Shock. IMPROPER GROUNDING CAN
RESULT IN ELECTRICAL SHOCK.
Do not modify the plug provided. If it does not fit the available outlet, a
correct outlet should be installed by a qualified electrician.
Repairs to the cord set or plug MUST be made by a qualified electrician.
INSTALLATION
HOW TO SET UP YOUR UNIT
Grounding Pin
Grounded
Outlets
Plug
Location of the Air Compressor
• Locate the air compressor in a clean, dry and well ventilated area.
• The air compressor should be located at least 12" away from the wall or
other obstructions that will interfere with the flow of air.
• The air compressor pump and shroud are designed to allow for proper
cooling. The ventilation openings on the compressor are necessary to
maintain proper operating temperature. Do not place rags or other contain-
ers on or near these openings.

11- ENG A10208
Extension Cords
Using extension cords is not recommended. The use of extension cords will
cause voltage to drop resulting in power loss to the motor and overheating.
Instead of using an extension cord, increase the working reach of the air hose
by attaching another length of hose to its end. Attach additional lengths of
hose as needed.
If an extension cord must be used, be sure it is:
• a 3-wire extension cord that has a 3-blade grounding plug, and a 3-slot
receptacle that will accept the plug on the product
• in good condition
• no longer than 50 feet
• 12 gauge (AWG) or larger. (Wire size increases as gauge number decreas-
es. 10 AWG and 8 AWG may also be used. DO NOT USE 14 OR 16
AWG.)
Voltage and Circuit Protection
Refer to the specification chart for the voltage and minimum branch circuit
requirements.
Certain air compressors can be operated on a 15 amp cir-
cuit if the following conditions are met.
1. Voltage supply to circuit must comply with the National Electrical Code.
2. Circuit is not used to supply any other electrical needs.
3. Extension cords comply with specifications.
4. Circuit is equipped with a 15 amp circuit breaker or 15 amp time delay
fuse. NOTE: If compressor is connected to a circuit protected by fuses,
use only time delay fuses. Time delay fuses should be marked "D" in
Canada and "T" in the US.
If any of the above conditions cannot be met, or if operation of the 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.

12- ENG
A10208
Description of Operation
Become familiar with these controls before operating the unit.
On/Auto/Off Switch: Turn this switch
"On/Auto" to provide automatic power
to the pressure switch and "Off" 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).
Outlet Pressure Gauge: 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: The tank pressure gauge indicates the reserve air
pressure in the tank.
Regulator: Controls the air pressure shown on the outlet pressure gauge. Pull
the knob out and turn clockwise to increase pressure and counterclockwise to
decrease pressure. When the desired pressure is reached push knob in to lock
in place.
Universal Quick-Connect Body: The universal quick-connect body accepts
the three most popular styles of quick-connect plugs: Industrial, automotive
(Tru-flate), and ARO. One hand push-to-connect operation makes connections
simple and easy.
Drain Valve: The drain valve is located at the base of the air tank and is used
to drain condensation at the end of each use.
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 perfectly 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.
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
reference.
Drain
Valve
Safety
Valve
Regulator
Universal
Quick-
Connect
Body
Outlet
Pressure
Gauge
On/Auto/Off
Switch
Pressure
Switch
Tank
Pressure
Gauge

13- ENG A10208
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.
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 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
after the unit reaches "cut-out" pressure.
Motor Overload Protector: The motor has an
automatic reset thermal overload protector. 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.
The compressor will automatically restart after the motor cools.
How to Use Your Unit
How to Stop:
1. Set the On/Auto/Off lever to "Off".
Before Starting
Break-in Procedure
Risk of Unsafe Operation. 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.
NOTE: Pull coupler back until it clicks to prevent air from escaping through the
quick connect.
2.
Plug the power cord into the correct branch circuit receptacle.
(Refer to
Voltage and Circuit Protection paragraph in the Installation section of this
manual.)
3. Open the drain valve (counter-clockwise) fully to permit air to escape and
prevent air pressure build up in the air tank during the break-in period.
4. Move the On/Auto/Off lever to "On/Auto" position. The compressor will start.
5. Run the compressor for 15 minutes. Make sure the drain valve is open and
there is minimal air pressure build-up in tank.
6. After 15 minutes, close the drain valve by turning clockwise. The air
receiver will fill to "cut-out" pressure and the motor will stop.
The compressor is now ready for use.
Check Valve
Pressure
Release
Valve

14- ENG
A10208
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. Pull the regulator knob out and turn clockwise to increase pressure. When
the desired pressure is reached push knob in to lock in place.
The compressor is ready for use.
Before Each Start-Up:
1. Place On/Auto/Off lever to "Off".
2. Pull the regulator knob out and turn counterclockwise to set the outlet
pressure to zero.
3. Attach hose and accessories.
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.

15- ENG A10208
MAINTENANCE
Customer Responsibilities
Daily
or after
each
use
Before
each
use
●
●
Every
100
hours Yearly
●
1
1- more frequent in dusty or humid conditions
Check Safety Valve
Drain Tank
Air Filter
NOTE: See "Operation" section for the location of controls.
To ensure efficient operation and longer life of the air compressor, a routine
maintenance 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 conditions 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.
Air compressor pump intake
and exhaust valves ●
To Drain Tank
1. Set the On/Auto/Off lever to "Off" and unplug unit.
2. Pull the regulator knob out and turn counterclockwise to set the outlet
pressure to zero.
3. Remove the air tool or accessory.
4. Pull ring on safety valve allowing air to bleed from the tank until tank
pressure is approximately 20 psi. Release safety valve ring.
5. Drain water from air tank by opening drain valve (counter-clockwise) on
bottom of tank.
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.
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.
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.

16- ENG
A10208
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.
6. After the water has been drained, close the drain valve (clockwise). The air
compressor can now be stored.
NOTE: If drain valve is plugged, release all air pressure. The valve can then be
removed, cleaned, the reinstalled.
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 pump to operate at full capacity.
Before you use the compressor pump, check the air filter to be sure it is clean
and in place.
If it is dirty, replace it with a new filter. On some models, the filter may be
removed by using a pair of needle nose pliers or a screwdriver. Pull or pry out
the old filter and carefully clean the filter area. Push in the new air filter.
Air Compressor Pump Intake and Exhaust Valves
Once a year have a Trained Service Technician check the air compressor pump
intake and exhaust valves.
SERVICE AND ADJUSTMENTS
To Replace or Clean Check Valve
1. Release all air pressure from air tank. See "To Drain Tank" in the
"Maintenance" section.
2.
Set the On/Auto/Off lever to "Off" and unplug unit.
3. Remove shrouds.
4. Using an adjustable wrench loosen
outlet tube nut at air tank and pump.
Carefully move outlet tube up away from
check valve.
5. Using an adjustable wrench loosen
pressure relief tube nut at air tank
and pressure switch. Carefully move
pressure relief tube away from check
valve.
Outlet Tube
Check
Valve
Nut
Nut
Pressure
Relief
Tube
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.
ALL MAINTENANCE AND REPAIR OPERATIONS NOT LISTED MUST BE
PERFORMED BY TRAINED SERVICE TECHNICIAN.

17- ENG A10208
To Replace Regulator
1. Release all air pressure from air tank. See "To
Drain Tank" in the "Maintenance" section.
2. Set the On/Auto/Off lever to "Off" and unplug
unit.
3. Using an adjustable wrench remove the outlet
pressure gauge and quick connect from the
regulator.
4. Remove the regulator.
5. Apply pipe sealant tape to the nipple on the standpipe.
6. Assemble the regulator and orient as shown.
NOTE: Arrow indicates flow of air. Make sure it is pointing in the direction of
air flow.
7. Reapply pipe sealant to outlet pressure gauge and
quick connect.
8. Reassemble outlet pressure gauge and quick connect. Orient outlet
pressure gauge to read correctly. Tighten connect with wrench.
6. Unscrew the check valve (turn counterclockwise) using a 7/8" open end
wrench. Note the orientation for reassembly.
7. Using a screwdriver, carefully push
the 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.
8. Clean or replace the check valve.
A solvent, such as paint or varnish
remover can be used to clean the
check valve.
9. Apply sealant to the check valve threads. Reinstall the check valve (turn
clockwise).
10. Replace the pressure release tube. Tighten nuts.
11. Replace the outlet tube and tighten nuts.
12. Replace shrouds.
13. Perform the Break-in Procedure. See "Break-in Procedure" in the
"Operation section".
In closed position
disc is visible.
In open
position
nothing is
visible.
Screwdriver
Outlet
Pressure
Gauge
Quick
Connect
Regulator
Arrow
Regulator
Nipple
Regulator

18- ENG
A10208
STORAGE
Before you store the air compressor, make sure you do the following:
1. Review the "Maintenance" section on the preceding pages and perform
scheduled maintenance as necessary.
2. Set the On/Auto/Off lever 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 the drain or drain valve.
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). Wind them loosely around the compressor handle.
9. Store the air compressor in a clean and dry location.

19- ENG A10208
TROUBLESHOOTING
Risk of Unsafe Operation. Unit cycles automatically
when power is on. When performing maintenance, you
may be exposed to voltage sources, compressed air, or moving parts.
Personal injuries can occur. Before performing any maintenance or
repair, disconnect power source from the compressor and bleed off all air
pressure.
PROBLEM CAUSE CORRECTION
Pressure switch does
not shut off motor when
compressor reaches
"cut-out" pressure.
Pressure switch "cut-out"
too high.
Move On/Auto/Off lever to
the "Off" position, if the unit
does not shut off contact a
Trained Service Technician.
Contact a Trained Service
Technician.
Excessive tank
pressure - safety
valve pops off.
Tube fittings are not tight
enough.
Tighten fittings where air
can be heard escaping.
Check fittings with soapy
water solution. Do Not
Overtighten.
Air leaks at
fittings.
Air leaks at
pressure switch
release valve.
Defective pressure switch
release valve.
Contact a Trained Service
Technician.
Air leaks in air
tank or at air
tank welds.
Defective air tank. Air tank must be replaced.
Do not repair the leak.
Risk of
Bursting.
Do not drill into, weld or
otherwise modify air tank
or it will weaken. The tank
can rupture or explode.
Air leaks
between head
and valve plate.
Leaking seal.
Air leaks at or
inside check
valve.
Check valve seat damaged. A defective check valve
results in a constant air leak
at the pressure release valve
when there is pressure in the
tank and the compressor
is shut off. Replace check
valve. Refer to the "To
Replace or Clean Check
Valve" in the "Service and
Adjustment" section.
Contact a Trained Service
Technician.

20- ENG
A10208
PROBLEM CAUSE CORRECTION
It is normal for "some"
pressure drop to occur.
If there is an excessive
amount of pressure drop
when the accessory is used,
adjust the regulator following
the instructions in the
"Description of Operation"
paragraph in the "Operation"
section.
NOTE: Adjust the regulated
pressure under flow
conditions (while accessory is
being used).
Possible defect in safety
valve.
Operate safety valve
manually by pulling on ring.
If valve still leaks, it should
be replaced.
Defective check valve. Remove and clean, or
replace.
Knocking Noise.
Compressor is
not supplying
enough air
to operate
accessories.
Prolonged excessive use of
air.
Compressor is not large
enough for air requirement.
Hole in hose.
Check valve restricted.
Air leaks.
Restricted air intake filter.
Decrease amount of air
usage.
Check the accessory
air requirement. If it is
higher than the SCFM or
pressure supplied by your
air compressor, you need a
larger compressor.
Check and replace if
required.
Remove and clean, or
replace.
Tighten fittings.
Clean or replace air intake
filter. Do not operate the
air compressor with the
filter removed. Refer to the
"Air Filter" paragraph in the
"Maintenance" section.
Damaged regulator. Replace.
Regulator knob
has continuous
air leak.
Pressure reading
on the regulated
pressure gauge
drops when an
accessory is
used.