Instruction book
6996 0224 30 9
Also consult sections Safety precautions during operation and Safety precautions
during maintenance or repair.
These precautions apply to machinery processing or consuming air or inert gas.
Processing of any other gas requires additional safety precautions typical to the
application which are not included herein.
Some precautions are general and cover several machine types and equipment;
hence some statements may not apply to your machine.
1.4 Safety precautions during operation
All responsibility for any damage or injury resulting from neglecting these precautions,
or non observance of the normal caution and care required for installation, operation,
maintenance and repair, even if not expressly stated, will be disclaimed by the
manufacturer.
Some precautions are general and cover several machine types and equipment;
hence some statements may not apply to your machine.
Precautions during operation
1. Never touch any piping or components of the vacuum pump during operation.
2. Use only the correct type and size of hose end fittings and connections. Make sure that a hose is fully
depressurized before disconnecting it.
3. Persons switching on remotely controlled machines shall take adequate precautions to ensure that
there is no one checking or working on the machine. To this end, a suitable notice shall be affixed to
the remote start equipment.
4. Never operate the machine when there is a possibility of taking in flammable or toxic fumes, vapours or
particles.
5. Never operate the machine below or in excess of its limit ratings.
6. Keep all bodywork doors shut during operation. The doors may be opened for short periods only, e.g.
to carry out routine checks. Wear ear protectors when opening a door.
On vacuum pumps without bodywork, wear ear protection in the vicinity of the machine.
7. People staying in environments or rooms where the sound pressure level reaches or exceeds 80 dB(A)
shall wear ear protectors.
8. Periodically check that:
All guards are in place and securely fastened
All hoses and/or pipes inside the machine are in good condition, secure and not rubbing
There are no leaks
All fasteners are tight
All electrical leads are secure and in good order
Safety valves and other pressure relief devices are not obstructed by dirt or paint
Air outlet valve and air net, i.e. pipes, couplings, manifolds, valves, hoses, etc. are in good repair,
free of wear or abuse
Electrical cabinet air cooling filters are not clogged
9. If warm cooling air from vacuum pumps is used in air heating systems, e.g. to warm up a workroom,
take precautions against air pollution and possible contamination of the breathing air.
10. On water-cooled vacuum pumps using open circuit cooling towers, protective measures must be taken
to avoid the growth of harmful bacteria such as Legionella pneumophila bacteria.
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