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Section 1. Safety Precautions
1.1 Safety Precautions:
1. Wear appropriate personal protective equipment,
including safety glasses, lab coats, long pants, closed-
toe shoes, and gloves, when working with vacuum
pumps.
2. Store vacuum pumps on spill trays to prevent oil
spills and ensure proper containment.
3. Insulate running areas of the vacuum pump for
noise reduction, if necessary.
4. Dispose of used vacuum pump oils according to
prevailing EH&S (Environmental Health and Safety)
procedures.
Safety During Operation:
During continuous Operation of the pump, observe
the following safety precautions:
1. Ensure electrical cables/cords and power switches
are in good condition and free from defects or loose
connections.
2. Keep belt guards in place to prevent hands or loose
clothing from getting caught in the belt pulley.
3. Avoid operating pumps near containers of
flammable chemicals, flammable chemical wastes, or
combustible materials such as paper or cardboard.
4. Use appropriate vacuum tubing with thick walls,
avoiding thin Tygon-type hoses.
5. Avoid placing pumps in enclosed, unventilated
cabinets to prevent heat buildup and exhaust
accumulation.
6. Replace old tubing that has become crumbly to
maintain optimal performance.
7. Use the shortest length of tubing necessary to reach
the desired location.
8. Avoid using solvents that may damage the pump.
9. Always close the valve between the vacuum vessel
and the pump before shutting off the pump to
prevent vacuum oil from being drawn into the system.
10. Place a pan under the pumps to catch and collect
oil drips.
NBE O & M Document No. NES/NBE/O&M
11. Regularly check oil levels and change the oil as
needed. Properly dispose of vacuum pump oil
contaminated with condensate following EH&S
procedures.
12. For oil-filled pumps with total recirculation
service, be aware that many vapors can condense in the
pump oil. Use cold traps or other appropriate
methods to trap evaporated materials and ensure
proper venting of the pump exhaust.
Safety During Service:
Before performing maintenance or service on a
vacuum pump or compressor, adhere to the following
safety precautions:
1. Stop the pump. Ensure all power switches and
circuit breakers are turned off. Use proper tagging to
indicate "Do Not Switch On."
2. Equalize the pump pressure with atmospheric
pressure by passing air into or out of the piping.
3. Empty or clear the service liquid from the pump
before opening it.
4. If the pump has operated with harmful liquids or
media, wash it thoroughly with an appropriate liquid
as specified in the Material Safety Data Sheet (MSDS)
of the operating fluid.
5. Maintain a record for each pump, documenting oil
change dates, bearing greasing dates, shaft rotation
dates, and maintenance schedules.
Please note that these rephrased instructions are
provided for clarity and understanding. It is important
to follow the specific safety guidelines and procedures
recommended by your organization and NES
Company Inc.
Section 2: About the Manual
The following document provides set-up instructions,
Operation, and maintenance information for your
NES NBE series of vacuum pumps. Please read the
complete document carefully before operating your
pump. If you need further assistance in understanding
the details in this document or the pumps, please call
Page 5 of 43
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