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19 - ENG

A09770

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.

Summary of Contents for CFFC350C

Page 1: ...__________________________ Serial No ______________________________________ IMPORTANT Please make certain that the person who is to use this equipment carefully reads and understands these instruction...

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 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...

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: ...s 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 au...

Page 9: ...ian 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...

Page 10: ...OT 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 circuit...

Page 11: ...mp 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 Description of Operation Become f...

Page 12: ...art after the motor cools 12 ENG A09770 Check Valve Before First Start Up Risk of Unsafe Operation Serious damage may result if the following break in instructions are not closely followed This proced...

Page 13: ...t valves 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 disconn...

Page 14: ...sion 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 s...

Page 15: ...D ADJUSTMENTS 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 di...

Page 16: ...nnect Orient outlet pressure gauge to read correctly Tighten connect with wrench To Replace Regulator 1 Release all air pressure from air tank See To Drain Tank in the Maintenance section 2 Unplug uni...

Page 17: ...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 co...

Page 18: ...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 pre...

Page 19: ...essor 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...

Page 20: ...ch 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 Extension cord is wro...

Page 21: ...21 ENG A09770 NOTES...

Page 22: ...purchaser 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 c...

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