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Section 1
*Safety Precautions
*Installation Hints
Saktv Precautions and Warninw3
Listed are some, but not all safkty precautions that must
be observed with vacuum pumps and with vacuum
systems.
Failure to folIow any of these warnings may
result in severe personal injury, death, property
damage and for vacuum pump damag~
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This vacuum pmnp is designed for use in the
impression of normal atmospheric air only. No
other gases, vapors or fumes should be exposed to
the vacuum pump intake, nor processed through the
vacuum pump without prior consultation with
Quincy Compressor.
Disconnect and lockout all power supplies to the
vacuum pump plus any remote wntrollers prior to
servicing the unit.
Relieve all pressure (above or below atmospheric)
prior to servicing.
Do not change the function of the safety relief valve,
or replace the safety relief valve with a plug. Over
pressurization of the exhaust system or vacuum
pump components can occur, resulting in severe
personal injury, death and property damage.
Never use a flammable or toxic solvent for cleaning
the air filter or any parts.
Do not attempt to service any part while the vacuum
pump is operating.
Do not remove any guards or canopy panels while
the vacuum pump is operating.
Observe gauges daily to ensure vacuum pump is
operating properly.
Follow all maintenance procedures and check all
safety devices on schedule.
Never disconnect or tamper with the high air
temperature switch.
We the mrrectfluid at all times.
Take extreme care in selecting the proper inlet
filtration system for the vacuum pump. Liquids,
solids, and abrasive powders must be prevented
from entering the vacuum pump to prevent
mechanical failure or reduced life.
* Alterations must not be made to this vacuum pump
without Qu& Compressor approval. We of parts
other than those approved by Quincy for alterations,
repair or smvicing may create hazardous wnditions
and wiil void the warranty.
Installation Hints for Vacuum Service
The following items should be used as a guide for the
installation of QWI vacuum pumps. The list is not
inclusive of eve~ variable possible in the placement of
a vacuum pump. Every vacuum pump installation is
unique and care must be exercised in the placement of
each pump. If you are unsure of any installation
variable, pk.ase wnsult the factory before start-up.
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Page 28
Make sure all connections in piping from the pump
to the chamber or use point are leak tight and
secure. Leaks add load to the vacuum pump and
decrease botb available pump capacity and
attaimble base pressure.
All piping should be as straight as possible with
non-restrictive diameters. Elbows, bends, tees, and
tapers should be used only as absolutely necessary.
As a rule
of thumb, the inlet diameter of’the pump
should be maintained as far into the process as
possible.
Consult the factory for piping
recommendations.
Keep plumbing and system free of fluids, water,
dirt, and debris that are not part of the process.
These can cause obstructions in the vacuum flow
through the piping and can reduce available
pumping capacity.
All welds should be vacuum wmpatible.
The work chamber should be clea~ dry and empty
of wntamination not process related.
The fluid in the vacuum pump is the most critical
componenL
Most vacuum pump failures are the
result of wntaminated or deteriorated fluid. Follow
recommended fluid change schedules in normal
applications (air) and watch closely the condition
and appearance of the fluid in chemical or harsh
applications. Use the C&my fluid analysis program
to monitor the wndition of the fluid. Leak check
the system by pumping down to the lowest
attainable pressure and then valve off the vacuum
pump. Monitor the pressure rise over a period of
five or ten minutes and record this rate of rise for
future reference. This value is a good tool to have if
you believe there are pump or system problems.
Compare new value with the original.
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