Use and Care Manual

ManualsBrandsPowermate ManualsTools & Hardware20 Gal. Portable Electric Air Compressor

200-2966

The basic components of the air compressor are the electric motor, pump,

pressure switch and tank (see Fig. 1).

The electric motor (see A) powers the pump. The electric motor

is equipped with an overload protector to help prevent possible motor

burnout. If the motor becomes overheated, the overload protector will shut

it down. Should this occur, allow the motor to cool for 10-15 minutes, then

press (never force) the motor reset switch to restart the motor.

The pump (see B) compresses the air and discharges it into the

tank.

The tank (see C) stores the compressed air.

The pressure switch (see D) shuts down the motor and relieves

air pressure in the pump and transfer tube when the air pressure in the

tank reaches the kick–out pressure. As compressed air is used and the

pressure level in the tank drops to the kick–in pressure, the pressure

switch restarts the motor automatically, without warning and the pump

resumes compressing air.

The air line outlet (see E). Connect 1/4” NPT air hose to this outlet.

Fig. 1

OVERVIEW

BASIC AIR COMPRESSOR COMPONENTS

This compressor was shipped with oil in the pump

crankcase. Check oil before operating the air

compressor, see Check Oil under Maintenance.

1. Unpack the air compressor. Inspect the unit for damage. If the unit

has been damaged in transit, contact the carrier and complete a

damage claim. Do this immediately because there are time

limitations to damage claims.

The carton should contain:

• air compressor • handle

• operator/parts manual

2. Check the compressor’s serial label to ensure that you have received

the model ordered, and that it has the required pressure rating for its

intended use.

3. Attach handle to compressor as shown in Fig 2.

4. Locate the compressor according to the following guidelines:

a. Position the compressor near a grounded electrical outlet (see

GROUNDING INSTRUCTIONS). Avoid using an extension

cord; use a longer hose instead.

b. The flywheel side of the compressor must be at least 12 inches

(31 cm) from any wall or obstruction, in a clean, well-ventilated

area, to ensure sufficient air flow and cooling.

c. In cold climates, store portable compressors in a heated

building when not in use. This will reduce problems with

lubrication, motor starting and freezing of water condensation.

d. The compressor must be level to ensure proper lubrication of

the pump and good drainage of the moisture in the tank.

5. Connect an air hose (not included) to the manifold outlet.

Fig. 2

ASSEMBLY

ASSEMBLING THE COMPRESSOR

COMPRESSOR CONTROLS

Pressure Switch (see A)

This switch turns on the compressor. It is operated manually, but

when in the AUTO position, it allows the compressor to start up or shut

down automatically, without warning, upon air demand. ALWAYS set

this switch to OFF when the compressor is not being used, and before

unplugging the compressor.

Tank Safety Valve (see B)

Used to allow tank pressure to escape into the atmosphere. If the

pressure switch does not shut off the compressor at it’s “cut-out” pressure

setting, the safety valve will protect against high pressure by releasing

tank pressure at it’s factory set pressure (slightly higher than the pressure

switch “cut-out” setting). To operate manually, pull the ring on the valve to

relieve air pressure in the tank.

Pressure Release Valve (see C)

The pressure release valve (located on the bottom of the pressure

switch), is designed to release compressed air from the compressor head

and outlet tube when the compressor reaches “cut-out” or is shut off. The

pressure valve allows the motor to restart freely. When the motor stops

running, air will be heard escaping from this valve for a few seconds.

No air should be heard leaking when the motor is running or after brief

release after reaching “cut-out” pressure.

Tank Pressure Gauge (see D)

This gauge measures the pressure level of the air stored in the tank.

It is not adjustable by the operator, and does not indicate line pressure.

Air Pressure Regulator (see E)

This air pressure regulator enables you to adjust line pressure to the

tool you are using.

WARNING:

Never exceed the maximum working

pressure of the tool.

To adjust pressure setting, turn the knob clockwise to increase

pressure, and counterclockwise to decrease pressure.

Regulated Pressure Gauge (see F)

This gauge measures the

regulated line pressure.

Air line outlet (see G)

Connect 1/4” NPT air hose

to this outlet.

Fig. 3