BUSCH SIMPLEX VO 0040 B, Operating Instructions Manual

Page: 26 / 52

8 | Maintenance
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0870S03254
_VO 0040-0080_B_-0000_IM_en
8 Maintenance
WARNING
Hazard from running vacuum pump!
There is a severe threat for life and limb depending on the repair and maintenance work to
be carried out if the vacuum pump is running.
Only carry out any repair or maintenance work if:
•
the vacuum pump is not running
•
the vacuum pump is disconnected from the electrical supply and secured against uninten-
tional start-up
•
vacuum system is not under pressure!
•
hot surfaces are cooling down!
•
Disconnect the vacuum system from the process and make sure that there is ambient pres-
sure in the vacuum system! Procedure: Close the shut-off device on the inlet side (not in-
cluded in the scope of delivery) and slowly open the venting valve (VV, fig. 1).
WARNING
Danger from vacuum pump contaminated with hazardous material!
There is a danger of poisoning!
•
Ventilate the vacuum pumps before they are maintained
8.1
33B
Maintenance plan
The maintenance intervals strongly depend on the individual operating conditions. The inter-
vals specified below are to be considered reference values and should be individually short-
ened or extended. Especially at high stress, e.g. in case of high dust load in the environment or
the process gas, or in case of other contamination or ingression of process material, it may be
necessary to shorten the maintenance intervals a lot.
Interval Maintenance task
Claw-type vacuum pump MV
Monthly
•
Check the air filter insert of the air filter (AF, fig. 1) and
replace it if necessary (chap. 8.5).
Every 3 months
•
Check the oil level (chap. 8.2)
Every 6 months
•
Clean the vacuum pump from dust and impurities
(chap. 8.3)
Every 8000 hrs. or, at the
latest, after 1 year
•
Replace the gear oil (chap. 8.48.3).
After the oil change, reset the maintenance counter
via terminal 14 (digital input 4) of the control unit.
•
Check the suction strainer (IS, chap. 0) and clean it if
necessary.
Every 6 years
•
Perform a general overhaul of the vacuum pump (in-
form Busch).
Switch and control cabinet
Every 8000 hrs. or, at the
latest, after 1 year
•
Check the parts in contact with the medium for
corrosion
•
Check switch function, check for broken wires.