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13 - ENG

A07300

How to Start:

1.  Set the On/Off switch to ON (I) 

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.

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.

MAINTENANCE

Customer Responsibilities

Daily 
or after 
each 
use

Before 
each 
use

Check Safety Valve

Drain Tank

NOTE:

 See "Operation" section for 

the location of controls.

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.

To Check Safety Valve

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. 

Summary of Contents for CFBN125A

Page 1: ...250B CFBN125A 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 _______________________________...

Page 2: ...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...

Page 3: ...roperty 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 va...

Page 4: ...ndensed 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...

Page 5: ...ect voltage and adequate fuse protection 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 v...

Page 6: ...thing 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...

Page 7: ...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 Tran...

Page 8: ...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...

Page 9: ...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 gro...

Page 10: ...6 OR 18 AWG Voltage and Circuit Protection Refer to the specification chart for the voltage and minimum branch circuit requirements Risk of Opertion Certain air compressors can be operated on a 15 amp...

Page 11: ...controls before operating the unit On I Off O Switch Place this switch in the ON I position to provide automatic power to the pressure switch and OFF O to remove power at the end of each use Pressure...

Page 12: ...eck 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 ai...

Page 13: ...ponsibilities Daily or after each use Before each use Check Safety Valve Drain Tank NOTE See Operation section for the location of controls Unit cycles automatically when power is on When performing m...

Page 14: ...then be removed cleaned the reinstalled To Replace or Clean Check Valve 1 Release all air pressure from air tank See To Drain Tank in the Maintenance section 2 Unplug unit 3 Remove the hose by removin...

Page 15: ...ghten with wrench 9 Reapply pipe sealant to gauges quick connect and safety valve 10 Reassemble all components in reverse order of removal Make sure to orient gauges to read correctly and use wrenches...

Page 16: ...proximately 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...

Page 17: ...17 ENG A07300 NOTES...

Page 18: ...ser Air compressors 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 fo...

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