Maintenance - Campbell Hausfeld CS Serie Manual De Uso

Operation (Continued)
9. With valve at the tank outlet closed the air pressure will
build in the tank to the cut-out pressure. Air pressure in the
tank will rise until the pre-set maximum pressure is reached.
Upon reaching the maximum pressure the compressor will
switch to the Unloaded Mode. The noise level will be quieter.
Air is no longer being pumped into the tank. The air intake
valve is closed inside the air filter housing. High pressure air
from inside of the compressor housing is vented slowly out
through the air filter housing allowing the compressor to run
at idle. You may hear the high pressure air being vented for
about 1 minute.
10. Inside the electrical box, the idle delay timer begins tracking
time. After approximately 15 minutes of operation at idle the
compressor will turn off.
11. Release pressure from the tank down to the cut-in pressure
and the compressor will automatically restart. Pressure will
build in the tank until it reaches the cut-out pressure and go
into unloaded mode again. Wait approximately 1 minute and
then release some air from the air tank.
When the pressure in the tank drops to the cut-in pressure the air
inlet valve will open allowing the air to be compressed and re-fill
the tank. The idle delay timer will reset for the next cycle.
This sequence of operation will continue until the ON/OFF switch
is turned to the off position.
Your compressor is now ready for use.
NOTE: All lubricated compressor pumps discharge some
condensed water and oil with the compressed air. Install

Maintenance

See Maintenance Schedule on Page 17.
Disconnect, tag and lock out power source then release all
pressure from the system before attempting to install,
service, relocate or perform any maintenance.
In order to maintain efficient operation of the compressor system, check the
oil level before each use. The ASME safety valve should also be checked
daily (see Figure 10). Pull ring on safety valve. Once pressure has been relieved, safety
valve will close. This valve automatically releases air if the tank pressure exceeds the
preset maximum. If air leaks after the ring has been released, or the valve is stuck and
cannot be actuated by the ring, the ASME safety valve must be replaced.
Do not tamper with the ASME safety valve.
TANK
Never attempt to repair or modify a tank! Welding, drilling
or any other modifi cation will weaken the tank resulting in
damage from rupture or explosion. Always replace worn, cracked or damaged
tanks.
Drain liquid from tank daily.
The tank should be carefully inspected at a minimum of once a year. Look for cracks
forming near the welds. If a crack is detected, remove pressure from tank immediately
and replace.
Series CS Rotary Screw Compressors
appropriate water/oil removal equipment and controls as
necessary for the intended application.
Failure to install appropriate water / oil
removal equipment may result in damage to
machinery or workpiece.
AMBIENT OPERATING TEMPERATURE
The compressor is designed to operate in an ambient
temperature between 40° F and 100° F. At ambient temperatures
below 40° F, the unit must be heated up to at least 70° F before
start-up.
GUARDING
The belt guard provided must be
installed on the unit.
Never operate compressor without
a beltguard. This unit can start
automatically without warning. Personal injury or
property damage could occur from contact with moving
parts.
All moving parts must be guarded. All electrical covers must be
installed before turning on the power.
DRAINING TANK
Condensate must be drained from the tank daily.
Figure 10 - ASME Safety Valve
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