QT/QTS Series
Quincy Compressor
2022208700, September 2018
30
of the tank through the drain tube. Safe removal of tank moisture from the air
tank is dependent upon an internal tank pressure of no more than 30 PSIG.
Higher internal tank pressures are dangerous and could cause serious injury!
Oil and moisture residue must be drained from the air receiver
daily or after each use. Accumulations of oil residue in the
receiver can be ignited by embers of carbon created by the heat of
compression, causing an explosion, damage to property and injury
to personnel.
Do not open a manual tank drain valve on any air tank containing
more than 30 PSIG of air pressure!
Never attempt to relieve an air tank by removing a pipe plug or
any other system component!
Manually Draining An Air Tank:
Step 1)
Disconnect & lockout the compressor from the power source (electric
models) or disconnect the spark plug wire from the spark plug (gas
engine models).
Step 2)
Tanks subjected to freezing temperatures may
contain ice. Store the compressor in a heated area before
attempting to drain moisture from the tanks. Reduce the
air pressure in the tank to 30 PSIG by pulling the pressure
relief valve ring (refer to
Fig. 3-19, Checking Pressure
Relief Valves & Relieving System Pressure
).
Step 3)
Slowly open the drain valve and allow the
moisture and air mixture to drain from the tank.
Step 4)
Once the moisture has been completely drained,
close the drain valve.
Air Tank Inspection
Quincy Compressor recommends that all air tanks be
inspected at scheduled intervals. Refer to
Fig. 3-20
Recommended Air Tank Inspection Intervals
for relative information. Measure tank wall thickness
WARNING !
WARNING !
WARNING !
Fig. 3-19 Checking Pressure Relief Valves
& Relieving System Pressure