Porter Cable C2002 Manuel D'instructions page 18

PROBLEM
Pressure reading on
the regulated pressure
gauge drops when an
accessory is used.
Compressor is not
supplying enough air to
operate accessories.
Regulator knob has
continuous air leak.
Regulator will not shut
off air outlet.
A15414
CAUSE
It is normal for "some"
pressure drop to occur.
Prolonged excessive
use of air.
Compressor is not
large enough for air
requirement.
Hole in hose.
Check valve restricted.
Air leaks.
Damaged regulator.
Damaged regulator.
18 - ENG
CORRECTION
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).
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.
Replace.
Replace.