Senco PC2053-1 User Manual
OWNERS MANUAL FOR
PERMANENTLY LUBRICATED AIR COMPRESSOR
Accuset
MODEL NO.
PC2053-1
*A circuit breaker is preferred. Use only a fuse or circuit breaker that is the same rating as
the branch circuit the air compressor is operated on.
D23708 Rev. 0 3/20/01
TABLE OF CONTENTS
Page
SAFETY GUIDELINES ........................... 2
WARNING CHART ............................ 3-5
GLOSSARY............................................ 6
SPECIFICATION CHART ......................6
DUTY CYCLE ........................................6
STORAGE ..............................................6
DESCRIPTION OF OPERATION...........7
INSTALLATION AND BREAK-IN
PROCEDURES .................................. 8-9
Location of Air Compressor ........... 8
Page
Voltage and Circuit Protection ......... 8
Extension Cords ...............................8
Grounding Instructions ..................... 8
Additional Regulators and
Controls ............................................8
Break-In Procedures .........................9
OPERATING PROCEDURES ................ 9
TROUBLESHOOTING GUIDE ....... 10-11
COMPRESSOR PARTS LIST ........ 12-15
WARRANTY ......................... Back Cover
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
to the right. 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 of serious injury.
D23708
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.
2-ENG
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 OPERATING INSTRUCTIONS BEFORE USING THIS
EQUIPMENT. SAVE THESE INSTRUCTIONS. OWNER’S MANUAL SHOULD REMAIN WITH UNIT AT ALL TIMES.
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 CON-
FINED 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 CONDENSED 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.
HOW TO PREVENT IT
DRAIN TANK DAILY OR AFTER EACH USE. IF 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 REGULATOR AND 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 LOW-PRESSURE OBJECTS SUCH AS
CHILDREN’S TOYS, FOOTBALLS, BASKETBALLS. ETC.
3-ENG
D23708
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.
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.
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.
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.
SPRAYED MATERIALS SUCH AS PAINT, PAINT SOLVENTS,
PAINT REMOVER, INSECTICIDES, WEED KILLERS, CONTAIN
HARMFUL VAPORS AND POISONS.
RISK OF ELECTRICAL SHOCK
WHAT CAN HAPPEN
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 GROUND-
ING INSTRUCTIONS.
WORK IN AN AREA WITH GOOD CROSS-VENTILATION. READ
AND FOLLOW THE SAFETY INSTRUCTIONS PROVIDED ON
THE LABEL OR SAFETY DATA SHEETS FOR THE MATERIAL
YOU ARE SPRAYING. USE A NIOSH/MSHA APPROVED
RESPIRATOR DESIGNED FOR USE WITH YOUR SPECIFIC
APPLICATION.
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.
D23708
4-ENG
HAZARD
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 THE COMPRESSOR
HEAD OR OUTLET TUBES, CAN RESULT IN SERIOUS BURNS.
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.
RISK OF FALLING
WHAT CAN HAPPEN
A PORTABLE COMPRESSOR CAN FALL FROM A TABLE,
WORKBENCH OR ROOF CAUSING DAMAGE TO THE COM-
PRESSOR AND COULD RESULT IN SERIOUS INJURY OR
DEATH TO THE OPERATOR.
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.
ESW-99 9/26/99
HOW TO PREVENT IT
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.
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
D23708
SPECIFICATIONS
Model No.
Horsepower
SCFM @ 40 psig
SCFM @ 90 psig
Cut-In
Cut-Out
Voltage-Single Phase
Minimum Branch Circuit Requirement
*Fuse Type
Amperage at Max. Pressure
GLOSSARY
SCFM or CFM: Standard Cubic Feet per Minute; a unit
of measurement of air delivery.
PSIG or PSI: Pounds per square inch gauge.
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 approximately 100 PSI
the motor will restart automatically. The low pressure at
PC2053-1
2
3.6
2.5
100 PSI
125 PSI
120/60/1
15 AMPS
Time Delay
10 AMPS
which the motor automatically re-starts 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 to approximately 125 PSI before
the motor automatically shuts off .The high pressure at
which the motor shuts off is called "cut-out pressure."
DUTY CYCLE
This air compressor's optimum life may be achieved by operating the unit at a 50 % duty cycle, or less.
A 50% duty cycle is considered to be 30 minutes of 'run time' in any 1 hour time period.
Should the unit operate at a greater than a 50% duty cycle, then the compressor may be undersized for the
required job demand and continued operation above a 50% duty cycle may constitute misuse of the product.
This air compressor is specifically designed for use in lighter duty
contractor finishing applications. Use in any other application requiring
higher performance or longer duty cycle operation may cause premature
failure.
STORAGE
When you have finished using the air compressor:
1. Set the "ON/OFF" switch to "OFF" and unplug the
cord.
3. Protect the electrical cord and air hose from damage
by winding them loosely around the air compressor.
2. Relieve all pressure from the air compressor head and
air hose by opening the regulator.
D23708
4. Store the air compressor in a clean and dry location.
6-ENG
DESCRIPTION OF OPERATION
Air Compressor Pump (Included in compressor assembly): To compress air, the piston moves up and down
in the cylinder. On the downstroke, air is drawn in through
the air intake valves. The exhaust valves remain closed.
On the upstroke of the piston, air is compressed. The
intake valves close and compressed air is forced out
through the exhaust valves, through the outlet tubes,
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.
Cooling System (Included in compressor assembly):
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.
Air Intake Filter (Included in compressor assembly):
The unit requires no air filter due to the unique design of the
air intake system.
Check Valve (Not Shown): 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 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.
Regulator: The air pressure coming from the air tank is
controlled by the regulator. Turn the regulator knob
clockwise to increase pressure and counter-clockwise 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
desiredpressure. Depending on the air requirements of
each particular accessory, the outlet regulated air pressure may have to be adjusted while operating the accessory.
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 or equal to the tank pressure. See
“Operating Procedures”.
Tank Pressure Gauge: The tank pressure gauge indicates the reserve air pressure in the tank.
Drain Valve (Not Shown): The drain valve is located at the
base of the air tank and is used to drain condensation at
the end of each use.
On/Auto-Off Switch: Turn this switch ON to provide
automatic power to the pressure switch and OFF to
remove power at the end of each use.
ON/AUTO-OFF
PRESSURE
SWITCH
SAFETY VALVE
REGULATOR
AIR TANK
(NOT ILLUSTRATED)
SWITCH
TANK PRESSURE
DRAIN VALVE
GAUGE
OUTLET PRESSURE GAUGE
COMPRESSOR
ASSEMBLY
CHECK VALVE
(Not Shown)
7-ENG
D23708
INSTALLATION AND BREAK-IN PROCEDURES
Location of the Air Compressor
Your compressor comes to you completely assembled
and ready for use. Operate the air compressor in a dry,
clean, cool and well ventilated area. The air compressor
pump and case are designed to allow for proper cooling.
Clean or blow off dust or dirt that collects on the air
compressor. A clean air compressor runs cooler and
provides longer service. The ventilation openings on your
air compressor are necessary to maintain proper operating temperature. Do not place rags or other containers on
or near these openings.
Voltage and Circuit Protection
See specification chart on page 5.
Extension Cords
Use extra air hose instead of an extension cord to avoid
voltage drop and power loss to the motor.
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 compressor
• in good condition
• no longer than 50 feet
• 14 gauge (AWG) or larger. (Wire size increases as
gauge number decreases.) 12 AWG, 10 AWG and 8
AWG may also be used. DO NOT USE 16 OR 18
AWG.
Do not modify the plug that has been provided. If it does
not fit the available outlet, the correct outlet should be
installed by a qualified electrician.
If repairing or replacing cord or plug, the grounding wire
must be kept separate from the current-carrying wires.
Never connect the grounding wire to a flat blade plug
terminal. The grounding wire has insulation with an outer
surface that is green - with or without yellow stripes.
If these grounding instructions are not completely understood, or if in doubt as to whether the compressor is
properly grounded, have the installation checked by a
qualified electrician.
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 air compressor is equipped with a cord having a
grounding wire with an appropriate grounding plug. The
plug must be used with an outlet that has been installed
and grounded in accordance with all local codes and
ordinances. The outlet must have the same configuration
as the plug. See illustration. DO NOT USE AN ADAPT-
ER.
Inspect the plug and cord before each use. Do not use if
there are signs of damage.
IMPROPER GROUNDING CAN RESULT IN
ELECTRICAL SHOCK.
Additional Regulators and
Controls
Since the air tank pressure is usually greater than that
which is needed, a separate regulator is usually employed
to control the air pressure ahead of any individual air driven
device.
Separate air transformers which combine the function of air
regulation, moisture and dirt removal should be used
where applicable.
NOTE
It is not uncommon for the air tank
to contain some water from the
testing of the tank at the factory.
D23708
8-ENG
INSTALLATION AND BREAK-IN PROCEDURES
Break-in Procedures
Serious damage may result if the following break-in instructions are not
closely followed.
This procedure is required:
1. Before the air compressor is put into service.
2. When the check valve is replaced.
a. Set the pressure switch lever to the "OFF"
position.
OPERATING PROCEDURES
1. Before attaching air hose or accessories, make sure
the OFF/AUTO lever is set to “OFF” and the air
regulator or shut-off valve is closed.
2. Attach hose and accessories.
b. Plug the power cord into the correct branch
circuit receptacle.
c. Turn the drain valve clockwise, opening it fully, to
prevent air pressure build-up in the tank.
d. Move the pressure switch lever to "ON/AUTO".
The compressor will start.
e. Run the compressor for 15 minutes. Make sure
the drain valve is open and there is little tank
pressure build-up.
f. After 15 minutes, close the drain valve by turning
counterclockwise. The air receiver will fill to cutout pressure and the motor will stop. The
compressor is now ready for use.
When you are finished:
6. Set the “OFF/AUTO” lever to “OFF”.
7. Turn the regulator counterclockwise and set the
outlet pressure to zero.
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. ON
MODELS HAVING ONLY A SHUT-OFF VALVE,
YOU MUST INSTALL A REGULATOR BEFORE
USING ACCESSORIES RATED AT LESS THAN
125 PSIG.
3. Turn the OFF/AUTO lever to “AUTO” and allow tank
pressure to build. Motor will stop when tank pressure
reaches “cut-out” pressure.
4. Open the regulator by turning it clockwise. Adjust the
regulator to the correct pressure setting. Your compressor is ready for use.
5. Always operate the air compressor in well-ventilated
areas; free of gasoline or other solvent vapors. Do not
operate the compressor near a paint spray area.
8. Remove the air tool or accessory.
9. Open the regulator and allow the air to slowly bleed
from the tank. Close the regulator when tank pressure is approximately 20 psi.
10. Drain water from air tank by opening drain valve
underneath the tank.
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.
NOTE
If drain valve is plugged, release all air
pressure. The valve can then be removed,
cleaned, then reinstalled.
11. After the water has been drained, close the drain
valve. The air compressor can now be stored.
9-ENG
D23708
TROUBLESHOOTING GUIDE
PERFORMING REPAIRS MAY EXPOSE VOLTAGE SOURCES, MOVING PARTS OR COMPRESSED
AIR SOURCES. PERSONAL INJURY MAY OCCUR. PRIOR TO ATTEMPTING ANY REPAIRS,
UNPLUG THE COMPRESSOR AND BLEED OFF TANK AIR PRESSURE.
PROBLEM
Excessive tank pressure - safety
valve pops off.
Air leaks at fittings.
Air leaks at or inside check valve.
Air leaks at pressure switch
release valve.
CAUSE CORRECTION
Pressure switch does not shut off motor
when compressor reaches “cut-out”
pressure.
Pressure switch “cut-out” too high.
Tube fittings are not tight enough.
Defective or dirty check valve.
Defective pressure switch release valve.
Defective check valve.
Move the pressure switch lever to the “OFF” position.
If the unit doesn’t shut off, and the electrical contacts
are welded together, replace the pressure switch.
If the contacts are good, check to see if the pin in the
bottom of the pressure release valve is stuck. If it does
not move freely, replace the valve.
Return the unit to an authorized dealer to check and
adjust, or replace switch.
Tighten fittings where air can be heard escaping.
Check fittings with soapy water solution. DO NOT
OVER-TIGHTEN.
A defective check valve results in a constant air leak at
the pressure release valve where there is pressure in
the tank and the compressor is shut off. Remove and
clean or replace check valve. DO NOT OVER-TIGHTEN.
Remove and replace the release valve..
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. DO NOT OVERTIGHTEN.
Air leaks in air tank or at air tank
welds.
Pressure reading on the regulated pressure gauge drops
when an accessory is used.
D23708
Defective air tank.
It is normal for “some” pressure drop to
occur.
10-ENG
Air tank must be replaced. Do not repair the leak.
DO NOT DRILL INTO, WELD OR OTHERWISE
MODIFY AIR TANK OR IT WILL WEAKEN. THE
TANK CAN RUPTURE OR EXPLODE.
If there is an excessive amount of pressure drop when
the accessory is used, adjust the regulator following
the instructions on page 8.
NOTE
Adjust the regulated pressure under flow
conditions (while accessory is being used).
TROUBLESHOOTING GUIDE
Air leak from safety valve.
Knocking Noise
Compressor is not supplying
enough air to operate accessories.
Motor will not run.
CAUSEPROBLEM
Possible defect in safety valve.
Defective check valve.
Prolonged excessive use of air.
Compressor is not large enough for air
requirement.
Hole in hose.
Air leaks. Tighten fittings. (See Air Leaks Section of
Tank pressure exceeds pressure switch
“cut-in” pressure.
Wrong gauge wire or length of extension cord.
Operate safety valve manually by pulling on ring. If
valve still leaks, it should be replaced.
Remove and clean, or replace.
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.Check valve restricted.
Troubleshooting Guide.)
Motor will start automatically when tank pressure
drops below “cut-in” pressure of pressure switch.
Check for proper gauge wire and cord length.
CORRECTION
Check valve stuck open.
Loose electrical connections.
Paint spray on internal motor parts.
Possible defective motor.
Fuse blown, circuit breaker tripped.
Pressure release valve on pressure
switch has not unloaded head pressure.
Remove and clean, or replace.
Check wiring connection inside pressure switch and
terminal box area.
Have checked at an Authorized Warranty Service
Center. Do not operate the compressor in the paint
spray area. See flammable vapor warning.
Have checked at an Authorized Warranty Service
Center.
1. Check fuse box for blown fuse and replace, if
necessary. Reset circuit breaker. Do not use a
fuse or circuit breaker with higher rating than that
specified for your particular branch circuit.
2. Check for proper fuse. You should be using a
time delay fuse.
3. Check for low voltage conditions and/or proper
extension cord.
4. Disconnect the other electrical appliances from
circuit or operate the compressor in its own
branch circuit.
Bleed the line by pushing the lever on the pressure
switch to the “off” position; if the valve does not open,
replace it.
Regulator knob continuous air
leak. Regulator will not shut off
at air outlet.
Dirty or damaged regulator internal
parts.
11-ENG
Replace regulator.
D23708
PARTS DIAGRAM
SSP-473
CAC-1275
SST-5314-1
SSF-607
CAC-1254
AC-0430
SSP-6021
DAC-4105-2
SSW-7367
SUDL-9-1
SSP-480
SSF-621
GA-352
AC81-B
CAC-4296-1
SS-1286
TIA-4150
SSW-7480
SUDL-403-1
D23708
12-ENG
PARTS AVAILABLE FOR THIS UNIT
Part Number Description
* SSF-607 Screw (4 used)
* SST-5314-1 Bumper, Rubber (4 used)
* SSF-621 Screw, ¼-14 x .625
DAC-4105-2 Pressure Switch
* CAC-1254 Isolator Pump (4 used)
SSW-7480 Bushing Strain Relief
CAC-1275 Check Valve
SSP-473 Nut Sleeve
● Only Availiable with Pressure Switch
DAC-4105-2
SUDL-9-1 Screw, 8-32 x .375/.344 (2 used)
SSP-480 Nipple
SSW-7367 Bushing, Strain Relief
SUDL-403-1 Cord Assembly
AC-0430 Drain Valve
TIA-4150 Safety Valve
SS-1286 Nipple, ¼-18 NPT
CAC-4296-1 Regulator
AC81-B Quick Connect
GA-352 Gauge (2 used)
SSP-6021 Bushing, Reducer 1/8-1/4 NPT
13-ENG
D23708
AIR COMPRESSOR DIAGRAM
D21919
AC-0815
AC-0470
CAC-1213
SUDL-9-1
D23584
CAC-1213
CAC-1199
AC-0471
SSF-3147
AC-0206
CAC-1206-1
DAC-269
+
+
SSG-8169
CAC-1212
CAC-4323
SSF-3156
SSF-995
CAC-1196
D23708
14-ENG
PARTS LIST
Part Number Description
x SSF-995 Screw #10-24 x 7/8 LG. Hex head thd forming (4 used)
CAC-1196 Cylinder Head
* CAC-1212 Tube Seal
* CAC-1199 Gasket Head
CAC-4323 Valve Plate Assembly
* SSG-8169 O-ring
+ ————— Rod Assembly
x SSF-3147 Screw, 3/8-16 socket head
+ ————— Cylinder Sleeve
D23584 Endbell Assembly
AC-0815 Timing Belt
* CAC-1213 Pump Isolator (5 used)
x SUDL-9-1 Screw, 8-32x .375/.344
AC-0471 Shroud, Left
AC-0470 Shroud, Right
D21919 Motor Cord
DAC-269 Outlet Tube
CAC-1206-1 Clamp
AC-0206 Tube Isolator
x SSF-3156 Screw,10-90 x.50
* K-0387 – Isolator Kit
+ KK-4964 – Connecting Rod Kit
x KK-4929 – Fastener Kit
15-ENG
D23708
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