Checking the leak-protection
non-return valve (accessory)
l
Check the leak-protection non-return valve regularly and clean it if
necessary
CAUTION
Wear protective clothing when carrying out maintenance work on
the sound absorber and leak-protection non-return valve.
There could still be residues of contamination.
Overhaul
CAUTION
Inappropriate maintenance work on the vacuum system can damage
the vacuum system.
Danger of explosion!
If requirements are not met, the vacuum system may not be
switched on!
Should work exceed the dismantling work described in this hand-
book, it may only be carried out by authorised persons.
WARNING
If the vacuum system has pumped gases that were contaminated
with foreign bodies that are hazardous to health, the oil and con-
densate are also contaminated with these foreign bodies.
These foreign bodies can penetrate into pores, openings and other
internal parts of the vacuum system.
There is a health hazard when dismantling the vacuum system.
There is also a danger to the environment.
Prior to shipping, the vacuum pump must imperatively be decon-
taminated and the degree of contamination must be documented in
a declaration of decontamination ("Declaration of Decontamina-
tion"), which can be downloaded from www.buschvacuum.com.
Busch service will only accept vacuum pumps that come with a com-
pletely filled in and legally binding signed form.
Removal from service
Temporary removal from service
Before disconnecting the intake and exhaust lines and switching off the
cooling water and nitrogen lines, make sure that the lines have ad-
justed to atmospheric pressure
Recommissioning
CAUTION
If the vacuum system was switched off for a longer period of time,
the rotors of the COBRA NS vacuum pump can be jammed.
Turn the screw rotors by hand.
l
Make sure that the various protective elements, stoppers or adhe-
sive tapes have been removed
l
Switch on the vacuum system by following the procedure
described in the chapter “Installation and start-up”
Dismantling and disposal
WARNING
If the vacuum system has pumped gases that were contaminated
with foreign bodies that are hazardous to health, the oil and con-
densate are also contaminated with these foreign bodies.
These foreign bodies can penetrate into pores, openings and other
internal parts of the vacuum system.
There is a health hazard when dismantling the vacuum system.
There is also a danger to the environment.
Protective clothing must be worn when dismantling the vacuum
system.
The vacuum system must be decontaminated as far as possible by
the user before delivery. The state of decontamination must be
documented in the “Declaration Regarding Contamination of
Equipment and Components” (form to be found in this handbook
or downloaded from www.buschvacuum.com).
Dispose of the used oil and condensate according to applicable en-
vironmental protection regulations.
When the product has reached the end of its lifetime:
–
decontaminate the vacuum system
CAUTION
Dismantling work must be carried out by authorised personnel. Be-
fore work begins, the operator of the vacuum system must fill in a
form or a “Declaration of Decontamination” that provides informa-
tion on possible dangers and appropriate measures.
If this form has not been filled in completely and signed, the
vacuum system may not be dismantled.
–
drain the oil
u
dispose of the oil according to local environmental protection
regulations
–
drain the cooling liquid
u
dispose of the cooling liquid according to local environmental
protection regulations
–
begin dismantling the vacuum system
CAUTION
Wear protective clothing when carrying out dismantling work.
u
dispose of the vacuum system as scrap metal
–
dispose of the individual parts of the machine according to local
regulations
A lithium battery is present inside the PLC:
eliminate the lithium battery according to local and national regulations
in place, relating to environment
Overhaul
COBRA DS 9161 A
Page 30
0870772604
Summary of Contents for COBRA DS 8163 A
Page 34: ......
