GLOSSARY
Cubic feet per minute.
CFM:
Standard cubic feet per minute; a unit of measure of air delivery.
SCFM:
Pounds per square inch; a unit of measure of pressure.
PSI:
Metric pressure measurement. 1 kilopascal equal 1000 pascals.
KPA (KILOPASCAL):
CODE CERTIFICATION:
ETL
®
, CETL, CETLUS, have been evaluated by OSHA certified independent safety laboratories
and meet the applicable Standards for Safety.
*UL
®
is a registered trademark of Underwriters Laboratories and ETL
trademark of Electrical Testing Laboratories.
While the motor is off, air tank pressure drops when accessory is used.
CUT-IN PRESSURE:
When the tank pressure drops to a certain low level the motor will restart automatically. The
low pressure at which the motor automatically restarts is called cut-in pressure.
When an air compressor is turned on and begins to run, air pressure in
CUT-OUT PRESSURE:
the air tank begins to build. It builds to a certain high pressure before the motor automatically
shuts off, protecting your air tank from pressure higher than its capacity. The high pressure at
which the motor shuts off is called cut-out pressure.
Branch Circuit: The circuit carrying electricity from electrical panel to outlet.
Duty Cycle: This air compressor pump is capable of running continuously. However, to prolong
the life of your air compressor, it is recommended that a 50%-75% average duty cycle be
maintained; that is, the air compressor pump should not run more than 30-45 minutes in any
given hour.
TROUBLESHOOTING GUIDE
This section provides a list of the more frequently encountered malfunctions, their causes
and corrective actions. The operator or maintenance personnel can perform some corrective
actions, and others may require the assistance of a qualified Stanley Tools technician or your
dealer
Problem
Excessive air tank pressure-safety valve pops off ............................................................................1, 2
Air leaks ............................................................................................................................................................3
Air leaks in air tank or at air tank welds ..................................................................................................4
Air leaks between head and valve plate .................................................................................................5
Air leaks from safety valve...........................................................................................................................6
Knocking Noise .............................................................................................................................................6
Pressure reading on the regulated pressure gauge drops when an accessory is used............7
Compressor is not supplying enough air to operate accessories.......................8, 9, 10, 11, 12, 22
Regulator knob has continuous air leak.................................................................................................13
Regulator will not shut off air outlet........................................................................................................13
Motor will not run...............................................................................................6, 14, 15, 16, 17, 18, 19, 20
Squealing Sound...........................................................................................................................................21
TROUBLESHOOTING CODES
CODE POSSIBLE CAUSE
1
Pressure Switch (I) does
not shut off motor when
compressor reaches
cut-out pressure
2
Pressure Switch (I)
cut-out too high
3
Tube fittings are not tight
enough
Products that bear one or more of the following marks: UL
POSSIBLE SOLUTION
Set the Auto/Off switch to OFF, if the unit does not shut off
contact a Stanley Tools factory service center or a Stanley
Tools authorized service center.
Contact a Stanley Tools factory service center or a Stanley
Tools authorized service center.
Tighten fittings where air can be heard escaping. Check
fittings with soapy water solution. Do Not Overtighten.
14
®
, CUL, CULUS,
®
is a registered
Code