System Components - Quincy Compressor QR-25 Series Instruction Manual

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The customer is responsible for providing a suitable foundation & isolator
mounting where necessary.
Mounting Mobile Units
Gas engine driven compressors mounted to truck beds should be fastened in
such a way so as not to create any stress to the air receiver tank. Truck beds,
characteristically, have a tendency to flex and could cause damage to the
receiver tank if the tank is fastened directly to the truck bed. It is the User's
responsibility to provide an adequate means of fastening the unit in these
applications.
System components
Efficiency and safety are the primary concerns when selecting components for
compressed air systems. Products of inferior quality can not only hinder
performance of the unit, but could cause system failures that result in bodily
harm or even death. Select only top quality components for your system. Call
your local Quincy Distributor for quality parts and professional advice.
Drive Pulleys / Sheaves
Various pulley and sheave combinations are available to obtain the desired air
pressure and delivery rate of your compressor. Consideration must be given
to these combinations to ensure that the motor is not overloaded by operating
above or below the designed speed range.
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Whatever combination is employed, the drive pulleys&compressor sheaves
must be properly aligned and drive belt tension set to specifications (refer to
SECTION 5, Pulley lS?zeaveAlignment &Belt Tension). Improper pulley/
sheave alignment and belt tension can cause motor overloading, excessive
vibration, and premature belt andlor bearing failure.
Excessive compressor RPM's (speed) could cause a pulley or sheave
to shatter. In an instant, the pulley or sheave could separate into
WARNING !
fragments capable of penetrating the belt guard and causing bodily
harm or death. Do not operate the compressor above the recom-
mended RPM (refer to SECTION 2, Specifications).
Guards
All mechanical action or motion is hazardous in varying degrees and needs to
be guarded, Guards should be designed
to
achieve the required degree of
protection and still allow full air flow from the compressor sheave across the
unit. Guards shall be in compliance with OSHA safety and health standards
29 CFR 1910.219 in OSHA manual 2206 and any state or local codes.
Guards must be fastened in place before starting the compressor
W~NING !
andneverremoved before cutting offandlockingout the main
power supply.
Check Valves
Check valves are designed to prevent back-flow of air pressure in the com-
pressed air system (air flows freely in one direction only). The check valve must
QR-25 Series
QUINCY COMPRESSOR
52201-104
11 February 1994