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20- ENG

A02231

TROUBLESHOOTING

Performing repairs may expose voltage sources, moving
parts or compressed air sources, moving parts or

compressed air sources. Personal injury may occur. Prior to attempting
any repairs, unplug the air compressor and bleed off all air tank air

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
outfit 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. 
(if equipped)

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.

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.

Contact a Trained Service
Technician.

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. Contact a Trained
Service Technician to
replace check valve. 

Summary of Contents for CPLDC2540P

Page 1: ...tructions before starting operations Part No A02231 041 0 ESPA OL P GINA 25 FRAN AIS PAGE 49 To learn more about Porter Cable visit our website at http www porter cable com Model CPLDC2540P Copyright...

Page 2: ...State of California to cause cancer birth defects or other reproductive harm Some example of these chemicals are G lead from lead based paints G crystalline silica from bricks and cement and other ma...

Page 3: ...M 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 AR...

Page 4: ...BALLS BASKETBALLS ETC 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 MODIFICATION...

Page 5: ...TICLES FROM THE TANK BREATHING THESE CONTAMINANTS CAN CAUSE SERIOUS INJURY OR DEATH SPRAYED MATERIALS SUCH AS PAINT PAINT SOLVENTS PAINT REMOVER INSECTICIDES WEED KILLERS MAY CONTAIN HARMFUL VAPORS AN...

Page 6: ...TEMPTING TO REPAIR COMPRESSOR WITH PROTECTIVE SHROUDS REMOVED CAN EXPOSE YOU TO MOVING PARTS AND CAN RESULT IN SERIOUS INJURY HAZARD HOW TO PREVENT IT WHAT CAN HAPPEN HAZARD HOW TO PREVENT IT WHAT CAN...

Page 7: ...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 DEF...

Page 8: ...ir compressors should be operated on not more than a 50 duty cycle This means an air compressor that pumps air more than 50 of one hour is considered misuse because the air compressor is undersized fo...

Page 9: ...sed in an air compressor They leave carbon deposits on critical components thus reducing performance and compressor life Use air compressor oil only NOTE Use an air compressor oil such as SAE 30 API C...

Page 10: ...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 installation checked by a qualified elect...

Page 11: ...and minimum branch circuit requirements Certain air compressors can be operated on a 15 amp circuit if the following conditions are met 1 Voltage supply through branch circuit is 15 amps 2 Circuit is...

Page 12: ...tor 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 ou...

Page 13: ...re 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 com...

Page 14: ...k connect plug if the air outlet is equipped with a quick connect socket Too much air pressure causes a hazardous risk of bursting Check the manufacturer s maximum pressure rating for air tools and ac...

Page 15: ...ty and or hostile environment will require a greater frequency of all maintenance checks Unit cycles automatically when power is on When performing maintenance you may be exposed to voltage sources co...

Page 16: ...k A and check oil on dipstick for visual signs of contaminants water dirt etc Make sure air vent C in dipstick is free from debris If air vent is blocked pressure can build in crankcase causing damage...

Page 17: ...e 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...

Page 18: ...compressor Bleed tank of pressure Allow the air compressor to cool To Replace Regulator 1 Release all air pressure from air tank See To Drain Tank in the Maintenance section 2 Unplug outfit 3 Using an...

Page 19: ...roximately 20 psi Release safety valve ring 6 Drain water from air tank by opening drain valve on bottom of tank Water will condense in the air tank If not drained water will corrode and weaken the ai...

Page 20: ...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 if equipped Defective pre...

Page 21: ...the Air Filter paragraph in the Maintenance section Pressure reading on the regulated pressure gauge if equipped drops when an accessory is used It is normal for some pressure drop to occur If there...

Page 22: ...switch will automatically reset Tank pressure exceeds pressure switch cut in pressure Motor will start automatically when tank pressure drops below cut in pressure of pressure switch Loose electrical...

Page 23: ...eaks it should be replaced Compressor mounting screws loose Tighten mounting screws see Parts manual for torque specifications Carbon build up in pump Have checked by a Trained Service Technician Sque...

Page 24: ...with 60 and 80 gallon tanks will be inspected at the site of installation Contact the nearest Porter Cable Authorized Warranty Service Center that provides on site service calls for service call arran...

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