Craftsman 921.164780 Owner's Manual download pdf (Page 5)

Parts & Features

See figures below for reference.

Quick Connect

Offers a quick release feature for

attaching and removing the air hose.

'_ Regulator Gauge "]

Indicates the outgoing air pressure I

to the tool and is controlled by |

the regulator.

Pressure Relief Tube

Regulator 1

The air pressure coming from the air tank is controlled by the

regulator. To increase the pressure turn the knob clockwise and to

decrease the pressure turn the knob counterclockwise.

Pressure Relief Valve "/

The pressure relief valve located on the side of the pressure|

switch, is designed to automatically release compressed air l

when the air compressor reaches cut-out pressure. The |

released air should only escape momentarily and the valve |

should then close.

Pressure Switch

This controls the power to the motor and also the cut-in/

cut-out pressure settings. This switch serves as the

AutolOff positions for the unit.

Tank Pressure Gauge

Indicates the reserve air pressure in the tank.

Air Intake Filter

Provides clean air to the pump and must

always be kept free of debris. Check on a

daily basis or before each use.

Tank Safety Valve

Used to allow excess tank pressure to escape

into the atmosphere. This valve should only

open when the tank pressure is above the

maximum rated pressure.

Oil Fill Cap

Oil Sight Gauge

Outlet Tube

Tank Drain Valve

Used to drain condensation from the air tank.

Located at bottom of tank.

I Check Valve 1

When the pump is not in operation the valve closes to retain air

pressure inside the tank. An internal component.

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Craftsman 921.164780 Owner's Manual Page 5

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