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OPeRATIOn AnD MAInTenAnCe MAnUAL
MAInTenAnCe
Ensure the pulley and sheave are properly aligned and
the motor anchor screws are adequately retightened
prior to restarting the compressor.
CAUTIOn
Improper pulley/sheave alignment and belt
tension can result in motor overload, excessive
vibration, and premature belt and/or bearing
failure.
To prevent these problems from occurring,
ensure the pulley and sheave are aligned and
belt tension is satisfactory after installing new
belts or tensioning existing belts.
eLeCTRIC DRAIn VALVe (OPTIOnAL)
PRODUCT DeSCRIPTIOn
The Electric Drain Valve removes condensed water and
oil from the air receiver tank. Additional drains may
be installed throughout your compressed air system,
including aftercoolers, filters, drip legs and dryers.
The Electric Drain Valve operates on a timer which can
be set to automatically drain the air receiver tank at
operator-determined intervals.
Key features include:
100% continuous duty
NEMA enclosure
Adjustable time on (0.5 - 10 seconds)
Adjustable time off (0.5 - 5 minutes)
Stainless steel operator
LED to indicate electrical power is on
LED to indicate valve is open
Manual override
OPeRATIOn
Open the strainer ball valve.
Strainer Ball Valve.
OPEN
CLOSED
2. Set the “time off” and “time on” knobs. See TIMER
SETTINGS (below) for an explanation of the
settings.
. During compressor operation, check for air leaks.
TIMeR SeTTInGS
The “time off” setting determines the interval between
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1.
cycles from 0 seconds to 5 minutes. The “time on”
setting determines the actual time the compressor
drains condensate.
The timer’s cycle rate and drain opening time should
be adjusted to open just long enough to discharge the
condensate. The timer is properly set when it opens
and discharges condensate and then vents air for
approximately one second before closing. Adjustments
may be made depending on many factors, including
humidity and duty cycle.
TROUBLeSHOOTInG
TROUBLe
CAUSe
ACTIOn
Valve will not
close.
Debris in solenoid
valve prevents
diaphragm from
seating.
Remove solenoid
valve, disassemble,
clean and reas-
semble.
Short in electrical
component.
Check and replace
power cord or
timer as needed.
Timer will not
activate
No electrical sup-
ply.
Apply power.
Timer malfunction Replace timer.
Clogged port.
Clean valve.
Solenoid valve
malfunction.
Replace solenoid
valve.
Clogged strainer.
Clean strainer.
MAInTenAnCe
Periodically clean the screen inside the valve to keep
the drain functioning at maximum capacity. To do this,
perform the following steps:
Close the strainer ball valve completely to isolate
it from the air receiver tank.
Press the TEST button on the timer to vent the
pressure remaining in the valve. Repeat until all
pressure is removed.
CAUTIOn
High pressure air can cause injury from
flying debris. ensure the strainer ball valve is
completely closed and pressure is released from
the valve prior to cleaning.
. Remove the plug from the strainer with a
suitable wrench. If you hear air escaping from
the cleaning port, STOP IMMEDIATELY and repeat
steps 1 and 2.
. Remove the stainless steel filter screen and clean
it. Remove any debris that may be in the strainer
body before replacing the filter screen.
5. Replace plug and tighten with wrench.
. When putting the Electric Drain Valve back into
service, press the TEST button to confirm proper
function.
1.
2.
