Operating Instructions - Craftsman 921.16477 Owner's Manual

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Owner's manual (41 pages)

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BREAK-IN OF THE PUMP

NOTE: The pump is shipped with break-in oil which should be

changed after the first 8 hours of operation.

Make sure the power is connected at the power panel.

Check the oil level in the pump (see "Checking the Oil" in the

maintenance section).

Open the petcock (see C).

CAUTION:

propel debris that may cause eye injury. Wear safety

goggles when opening petcock.

Turn ON the main power disconnect switch. Turn the

pressure switch to the AUTO position (see B). The motor

should start. Allow the compressor to run for 30 minutes, to

break in the internal parts.

NOTE: After about 30 minutes, if the unit does not operate

properly, SHUT DOWN IMMEDIATELY, and contact a

Sears or other qualified service center. DO NOT return

the unit to the store where it was purchased.

After about 30 minutes, turn the pressure switch to the OFF

position (see A).

Shut OFF the main power disconnect.

Close the petcock (see D). Turn in the clockwise direction.

Turn the pressure switch to the AUTO position. The

compressor will start and fill the tank to the cut-out

pressure and stop.

NOTE: As compressed air is used, the pressure switch will

restart the motor automatically to supply more

compressed air to the tank.

DAILY START-UP

Check the oil level in the pump (see "Checking the Oil" in the

maintenance section).

Make sure the main power disconnect switch is shut OFF.

Close the tank petcock (see D).

Turn ON the main power disconnect switch. Turn the

pressure switch to the AUTO position (see B). The pump will

start filling the tank with air. When the air pressure in the

tank reaches the level preset at the factory, the pressure

switch will turn off the electric motor. As air is used and the

pressure level in the tank drops, the pressure switch will start

the motor and the pump will begin refilling the tank.

WARNING:

by the pump. To prevent burns or other injuries, DO

NOT touch the pump or transfer tube while the pump

is running. Allow it to cool before handling or

servicing. Keep children away from the compressor

at all times.

NOTE: If the unit does not operate properly, SHUT DOWN

IMMEDIATELY, and contact a Sears or other qualified

service center.

COLD WEATHER STARTING

In cold weather check that the air filters are clean.

NOTE: Use synthetic, non-detergent air compressor oil.

Open the petcock (C) to depressurize the tank to zero PSI