RIDGID OL50135W manual Glossary of Terms, Npt, Scfm

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GLOSSARY OF TERMS

Air Filter

Porous element contained within a metal or plastic housing attached to the compressor cylinder head which removes impurity 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.

Manual On/Off Switch

Control which turns the air compressor on or off. The pres- sure 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.

Pounds Per Square Inch (PSI)

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 pre- determined 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.

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Contents OPERATOR’S Manual OIL Lubricated Direct DriveTable of Contents IntroductionGeneral Safety Rules Electrical SafetyPersonal Safety Work AreaSpecific Safety Rules ServiceSymbols Symbol Name DESIGNATION/EXPLANATIONSymbol Signal Meaning Speed and Wiring ElectricalExtension Cords Grounding InstructionsScfm Glossary of TermsNPT Handle BUILT-IN Cord Safety Wrap Valve FeaturesProduct Specifications Assembly Drain Valves Switch Hose Breaking in the PumpAttaching a Hose See Figures 4Operation ApplicationsRAISING/LOWERING the Handle Handle Release Knob BUILT-IN Cord WrapOIL Dipstick OIL Fill Hole Checking the OILSee Figures 8 See Figures 10 Using the AIR CompressorCold Weather Starting Checking the Safety Valve Tank Drain Valves SafetyDraining the Tanks To drainReplacing the AIR Filter MaintenanceGeneral Maintenance Changing the OIL See Figures 15Wheel Spacer HEX NUT OIL Fill Hole Drain Plug HEX KEYTroubleshooting Problem Cause SolutionTroubleshooting Page Warranty Customer Service Information Model No OL50135W Serial No