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Speedaire Operating Instructions
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Specifications / Glossary / Duty Cycle
Specification Chart
Glossary
Duty Cycle
Accessories
SAVE THESE INSTRUCTIONS FOR FUTURE USE
Air Filter
Porous element contained within a
metal or plastic housing attached to
the compressor cylinder head which
removes impurities from the intake air of
the compressor.
Air Tank
Cylindrical component which contains
the compressed air.
Check Valve
Device that prevents compressed air
from flowing back from the air tank to
the compressor pump.
Cut-In Pressure
The low pressure at which the motor will
automatically restart.
Cut-Off Pressure
The high pressure at which the motor
will automatically shut off.
Electric Motor
Device which provides the rotational
force necessary to operate the
compressor pump
T
his 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.
Accessories for this unit are available at
the store the unit was purchased.
The use of any
other accessory not recommended for
use with this tool could be hazardous.
Use only accessories rated equal to
or higher than the rating of the air
compressor.
* Tested per ISO 1217
Refer to Glossary for abbreviations.
Model No.
C151G
Running Horsepower
1.7 *
Bore
2.875” (73.025 mm)
Stroke
1.45” (36.83 mm)
Voltage
120
Hz-Single Phase
60
Minimum Branch Circuit Requirement
15 amps
Fuse Type
Time Delay
Air Tank Capacity (Gallon)
15 (56.8 liters)
Maximum Air Pressure
225 PSI
Approximate Cut-in Pressure
175 PSIG
Approximate Cut-out Pressure
225 PSIG
SCFM @ 40 PSI
6.8 *
SCFM @ 90 PSI
5.1 *
NPT (National Pipe Thread)
A seal thread tape must be used
to provide a leak-free seal on pipe
threaded connections.
Pressure Regulator Knob
Regulates the outgoing pressure from
the air outlet to the tool. It is possible to
increase or decrease the pressure at the
outlet by adjusting this control knob.
Pressure Switch
Automatically controls the on/off
cycling of the compressor. It stops the
compressor when the cut-off pressure
in the tank is reached and starts the
compressor when the air pressure drops
below the cut-in pressure.The pressure
switch will not automatically start and
control the compressor unless the
manual AUTO/Off Switch is in the AUTO
position.
PSI (Pounds Per Square Inch)
Measurement of the pressure exerted
by the force of the air. The actual PSI is
measured by a pressure gauge on the
compressor.
Pump
Produces the compressed air with a
reciprocating piston contained within
the cylinder.
Regulator Pressure Gauge
Displays the current line pressure. Line
pressure is adjusted by rotating the
pressure regulator knob.
Pressure Relief Valve
Prevents air pressure in the air tank
from rising over a predetermined limit.
SCFM (Standard Cubic Feet Per
Minute)
A unit of measure of air delivery.
Tank Pressure Gauge
Indicates the pressure in the air tank.
Thermal Overload Switch
Automatically shuts off the compressor
if the temperature of the electric motor
exceeds a predetermined limit.
