OPERATION

Know Your Air Compressor

READ THIS OWNER’S MANUAL AND SAFETY RULES BEFORE OPERATING YOUR UNIT. Compare the illustrations with your unit to familiarize yourself with the location of various controls and adjustments. Save this manual for future reference.

Pressure

On/Auto/OffSwitch

Switch

Tank

Pressure

Gauge

Safety Valve

Globe Valve

Description of Operation

Become familiar with these controls before operating the unit.

On/Auto/Off Lever: Turn this switch "On/Auto" to provide automatic power to the pressure switch and "Off" to remove power at the end of each use.

Pressure Switch: The pressure switch automatically starts the motor when the air tank pressure drops below the factory set "cut-in" pressure. It stops the motor when the air tank pressure reaches the factory set "cut-out" pressure.

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).

Tank Pressure Gauge: The tank pressure gauge indicates the reserve air pressure in the tank.

Globe Valve (sold separately): Opens and closes air discharge valve. Turn knob counter-clockwise to open and clockwise to close.

Regulator (sold separately, not shown): An air pressure regulator or a separate air transformer which combines the functions of air regulation and/or moisture and dirt removal is recommended for most applications.

Cooling System (not shown): This compressor contains an advanced design cooling system. At the heart of this cooling system is an engineered fan. It is perfectly normal for this fan to blow air through the vent holes in large amounts. You know that the cooling system is working when air is being expelled.

13-ENG

D27042

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Porter-Cable C7550 instruction manual Know Your Air Compressor, Description of Operation