Industrial Series
Quincy Compressor
50263-106, October 2004
9
3501 Wisman Lane, Quincy IL - 62305-3116
Uneven feet drawn tightly to the concrete pad will
cause severe vibrations resulting in cracked welds or
fatigue failure. The customer is responsible for pro-
viding a suitable foundation & isolator mounting
where necessary.
Mounting Mobile Units
Units mounted to truck beds must be fastened in
such a way as not to create any stress to the air
receiver. Truck beds have a tendency to flex and
could cause damage to the receiver if fastened di-
rectly to the truck bed. It is the user's responsibility
to provide an adequate means of fastening the unit in
these applications.
SYSTEM COMPONENTS
Drive Pulleys / Flywheels
Drive pulleys and compressor flywheels must be
properly aligned and tensioned to specifications.
(Re-
fer to Belt Alignment & Adjustment.)
WARNING !
Excessive compressor RPM’s could cause a pulley
or flywheel to shatter, possibly causing bodily harm
or death. Do not operate the compressor above the
recommended RPM. (Refer to DESCRIPTION &
APPLICATION).
Guards
Guards must be designed and mounted in compli-
ance with OSHA safety and health standards 29 CFR
1910.219 in OSHA manual 2206, and any state or
local codes. They must provide protection from mov-
ing parts while still allowing full air flow for cooling
purposes.
WARNING !
Guards must be fastened in place before starting
the compressor. Always disconnect and lockout the
power supply to the unit before removing the guard.
Check Valves
Check valves are designed to allow air to flow freely
in one direction only. A properly sized check valve
must be provided.
Do not rely on a check valve to
isolate a compressor from a pressurized tank or com-
pressed air delivery system during maintenance proce-
dures.
Pressure Regulator
This type of valve allows the operator to control the
air pressure setting of the compressor discharge. A
gauge is provided to indicate the air pressure.
Refer to the adjustment instructions from the
manufacturer, included in the envelope shipped with
the compressor unit.
Pressure Relief Valves
Pressure relief valves aid in preventing system fail-
ures by relieving system pressure when compressed
air reaches a predetermined pressure level. All air
receivers must be equipped with an adequately sized
pressure relief valve. This type of valve is preset by
the manufacturer and must not be modified in any
way.
Pressure relief valves are to be placed ahead of
any potential blockage point which includes, but not
limited to, shutoff valves, heat exchangers, pulsation
dampeners, and discharge silencers. Ideally the pres-
sure relief valve should be threaded directly into the
pressure point it is sensing, not connected with tub-
ing or pipe, and always pointed away from any
chance bystander.
WARNING !
Pressure relief valves must be provided to protect
compressed air systems in accordance with ASME
B19 safety standards. Failure to provide properly
sized pressure relief valves may cause property
damage, severe personal injury or even death.
Compressor Controls (Electric Motor
Powered Units)
Start/Stop
Electric motor powered units are equipped with a
pressure switch as standard equipment for start/stop
operation. The pressure switch (when set to the
“auto” position) reacts to the demand for compressed
air and allows the motor to start. When the demand
is satisfied, the unit stops. Pressure switches pro-
vided by Quincy Compressor are preset at the factory
and should only be modified by a qualified techni-
cian. Pressure switches equipped with an OFF /
AUTO contact lever
(refer to Fig.13)
should be set to
the “OFF” position when connecting or disconnecting
the power cord from the electrical outlet or when
changing air tools.
This system provides a loadless start feature. A
release valve on the pressure switch opens when the
unit shuts down and bleeds off pressure in the dis-
charge line. The check valve holds pressure in the
tank.
Compressor Controls (Gasoline Engine
Powered Units)
Gasoline engine powered units are equipped with a
pilot unloader valve as standard equipment for con-
stant run operation (the engine and compressor con-
Summary of Contents for QTS Series
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