Ridgid OL50145MWD Operation Manual - Page 8

GLOSSARY OF TERMS 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. Amperage Overload Switch (Manual) Automatically shuts off the compressor if the temperature of the electric motor exceeds a predetermined limit. 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. On/Off Switch Control which turns the air compressor on or off. The pressure switch will not automatically start and control the compressor unless the manual On/Off Switch is in the ON( l ) position. 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. 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. Safety valve Prevents air pressure in the air tank from rising over a predetermined limit. SCFM (Standard Cubic Feet Per Minute) or CFM (Cubic Feet Per Minute) A unit of measure of air delivery. Tank Pressure Gauge Indicates the pressure in the air tank.