Speedaire Operating Instructions
Specifications / Glossary / Duty Cycle
SAVE THESE INSTRUCTIONS FOR FUTURE USE
Specification Chart
Model No.
Running Horsepower
Bore
E
Stroke
N
Voltage
G
Hz-Single Phase
L
Minimum Branch Circuit Requirement
I
Fuse Type
S
Air Tank Capacity (Gallon)
Maximum Air Pressure
H
Approximate Cut-in Pressure
Approximate Cut-out Pressure
SCFM @ 40 PSI
SCFM @ 90 PSI
* Tested per ISO 1217
Refer to Glossary for abbreviations.
Glossary
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
C151G
1.7 *
2.875" (73.025 mm)
1.45" (36.83 mm)
120
60
15 amps
Time Delay
4 Gallons (15.1 liters)
225 PSI
175 PSIG
225 PSIG
6.8 *
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 ON/OFF Switch is in the ON
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.
6
Regulator Pressure Gauge
Displays the current line pressure. Line
pressure is adjusted by rotating the
pressure regulator knob.
Safety Valve
If the pressure switch does not shut
off the air compressor at its "cut-out"
pressure setting, the safety valve
will protect against high pressure by
"popping out" at its factory set pressure
(slightly higher than the pressure switch
"cut-out" setting).
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.
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.
Accessories
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.