Speedaire Cast Iron Serie Manual De Instrucciones página 6

Speedaire Operating Instructions
Speedaire
Operation (Continued)
OIL PUMP OPERATION (FOR PRES-
SURE LUBRICATED PUMPS ONLY) Oil pump operation must be verified
before compressor is put into service.
1. Run the compressor for 2 minutes
E
and turn the oil filter counter clock-
N
wise until oil leaks out between the
G
filter and the housing surface.
L
2. If no oil leaks out, turn compressor
I
OFF and prime the oil pump.
S
3. Loosen brass nuts on oil pickup tube.
H
Remove top brass nut and carefully
disengage tube elbow from oil pump
housing.
4. Squirt a liberal amount of oil into fit-
ting hole to prime oil pump.
Reassemble making sure not to crush
tube by overtightening nuts. System
must be air tight to work.
5. Repeat Step 1.
RECOMMENDED BREAK-IN PERIOD
The compressor should be run continu-
ously for one hour to allow proper
seating of the piston rings.
1. Open drain cock completely and run
the compressor for 60 minutes (see
Figure 6).
Figure 6 - Opening Drain Cock
2. Turn off the compressor and close
drain cock. The compressor is now
ready for use.
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 con-
taminated by condensed water will not
provide adequate lubrication and must
be changed immediately. Using contami-
nated oil will damage bearings, pistons,
cylinders and rings and is not covered
Air Compressors
®
under warranty. To avoid water conden-
sation in the oil, periodically run the
compressor with tank pressure near 150
psi for two-stage compressors or 120 psi
for single stage compressors by opening
the drain cock or an air valve connected
to the tank or hose. Run the pump for an
hour at a time at least once a week or
more often if the condensation reoccurs.
IMPORTANT: Change oil after first 50
hours of operation.
PRESSURE SWITCH, START - STOP
NOTE: This compressor has a maximum
operating pressure of 175 psi for two-
stage compressors or 135 psi for single
stage compressors. Do not alter pressure
settings on control components above
this limit.
To tank pressure
Figure 7 - Pressure Switch
The compressor unit starts and stops
based on preset pressure switch set-
tings. The pressure switch contains an
unloader which is a small valve that
vents air to allow the motor to start
easily (See Figure 7).
CONTINUOUS RUN OPERATION
To convert to continuous run operation a
separate unloading device such as the
Load Genie (5X709 - 5 HP; 5X994 - 7.5, 10
and 15 HP units) must be installed by the
user between the pump and the tank. The
existing check valve must be removed.
CRANKCASE BREATHER
During severe operating conditions or
initial start-up, some oil may accumulate
at the crankcase breather opening. This is
normal and will diminish as the pump
accumulates run time and the piston
rings become fully seated.
6
Maintenance
Disconnect, tag and lock
out power source then
release all pressure from
the system before attempt-
ing to install, service, relocate or perform
any maintenance.
In order to maintain efficient operation
of the compressor system, check the air
filter and oil level before each use. The
ASME safety valve should also be
checked daily (See Figure 8). This valve
automatically releases air if the tank pres-
sure exceeds the preset maximum. Pull
the ring on the safety valve to confirm
that the valve will open. If the valve is
stuck and cannot be actuated by the ring,
the ASME safety valve must be replaced.
After confirming correct operation,
release the ring. The valve will reset
when tank pressure drops to approxi-
mately 40 psi.
Unloader
Figure 8
ASME safety valve.
TANK
Never attempt to repair
or modify a tank!
Welding, drilling or any
other modification will
weaken the tank resulting in damage
from rupture or explosion. Always
replace worn, cracked or damaged
tanks.
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.
Do not attempt to
tamper with the
Drain liquid from
tank daily.