Crankcase Breather - Speedaire 4LW38 Manual De Instrucciones

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Speedaire Operating Instructions

Speedaire

Air Compressors

Operation

Before starting the

compressor, thor-

oughly read all component instruction

manuals, especially the engine manual.

A belt guard must be

installed before operating

the unit.

1. Do not operate com-

pressor higher than the rated speed.

Excessive engine speeds can damage

the compressor and engine.

2. Before starting the compressor,

always put toggle lever in unload

position (See Figure 4).

Loaded

Figure 4 - Control valve

Do not disconnect

battery from

engine ignition while compressor is

running (Models w/electric start only).

3. Check the oil level in the compressor

and engine crankcase and add oil if

required.

4. Fill fuel tank with clean, fresh, regu-

lar unleaded (or regular leaded if not

available) grade of automotive gaso-

line. Do not mix oil with gasoline.

5. When putting unit into service for

the first time, the compressor should

be run continuously for one hour to

allow proper seating of the piston

rings.

a. Open drain cock on the tank and

run the compressor unloaded for

60 minutes (See Figure 5).

Gasoline Engine

Figure 5 - Opening drain cock

b. Turn off the compressor and close

drain cock. The compressor is now

ready for use.

6. On cold weather start-up, run unit

unloaded for 10-20 minutes to warm

up compressor and engine.

7. Some vibration is common for the

first 2 to 3 hours of operation. This

Unloaded

vibration will decrease after the belt

and pulley seat.

If the compressor is run under humid

conditions for short periods of time,

the humidity will condense in the

crankcase and cause the oil to look

creamy. Oil contaminated by con-

densed water will not provide ade-

quate lubrication and must be changed

immediately. Using contaminated oil

will damage bearings, pistons, cylinders

and rings and is not covered under

warranty. To avoid water condensation

in the oil, periodically run the compres-

sor with tank pressure at 20 psi under

maximum pressure setting by opening

the drain cock or an air valve connect-

ed to the tank or hose. Run the pump

for an hour at a time at least once a

week or more often if the condensa-

tion reoccurs.

operation.

All lubricated compressor pumps dis-

charge some condensed water and oil

with the compressed air. Install appropri-

ate water/oil removal equipment and

controls as necessary for the intended

application.

Two Stage Gasoline Air Compressors

oil removal equipment may result in

damage to machinery or workpiece

All moving parts must be guarded.

All electrical covers must be installed

before turning on the power.

CONTINUOUS RUN OPERATION

Continuous run operation is designed

for gasoline engine units to ensure the

required air pressure is always avail-

able and to eliminate the need for

frequent starting. The engine and the

pump continuously run to keep the air

tank at maximum operating pressure.

IDLE DOWN/UNLOADING

This unit is equipped with idle down/

unloading control. To check operation:

1. Close outlet valve (See Figure 1).

2. Start compressor and allow pressure

to reach proper limit of control valve

(See Figure 4) which is set at 175 psi.

At this point, the compressor should

unload through the breather bush-

ing on control valve and the engine

should idle down.

3. Open outlet valve and allow pres-

sure in tank to drop to lower limit

of control valve which is preset at

145 psi. At this point the control

valve should close allowing the

compressor to begin loading the

tank instead of discharging through

the breather bushing.

4. Do not alter pressure settings on

control valve or governor setting

on engine. If lower pressures are

required this should be accomplished

with a separate pressure regulator

after the outlet valve. Compressor

has a maximum operating pressure

Change oil after

limit of 175 psi and should not be

first 50 hours of

operated beyond this limit.