BUSCH Seco SG 0008 A, Installation And Operating Instructions Manual

Page: 8 / 20

Seco SG 0008 A
page 8
0870162612 /
190709
Maintenance
•
Prior to disconnecting connections make sure that the connected
pipes/lines are vented to atmospheric pressure
Maintenance Schedule
Note : The maintenance intervals depend very much on the individual
operating conditions. The intervals given below are upper limits that
must not be exceeded.
Particularly heavy-duty operation, such like high dust loads in the en-
vironment or in the process gas, other contaminations or ingress of
process material, can make it necessary to shorten the maintenance in-
tervals significantly.
Every Year:
•
Make sure that the vacuum pump is shut down and locked
against inadvertent start up
•
Make sure that the surface of the vacuum pump is free from dust
and dirt, clean if necessary
•
Blow out the drive motor lantern, ventilation slots and the cou-
pling with pressurised air
•
Remove the drive motor (a) from the motor lantern
•
Remove the motor lantern (1)
•
Clean the coupling hubs (2)(3) and the coupling element
•
Check that the coupling hubs (2)(3) are firmly seated
•
Check the coupling element for cracks and for a free of clearance
seated, replace the complete coupling if necessary.
In case of replacing the coupling:
♦
Slide the new coupling hub (2) onto the shaft of the vaccum
pump up to the stop
♦
Tighten the clamping screw (4) with Loctite 243 and tighten
with 2 Nm
♦
Slide the new coupling hub (3) onto the motor shaft up to
the stop
♦
Secure the clamping screw (4) with Loctite 243 and tighten
with 2 Nm
♦
Insert the new coupling element
•
Remount the motor lantern (1)
•
Remount the drive motor (a)
•
Check the electrical connection
•
Make sure that the earth cable (cable between earth connec-
tion (e) of the vacuum pump and earth point) is undamaged (re-
sistance check)
Every 5000 Operating Hours:
•
Replace the vanes (
➔
page 8: Replacement of Vanes)
Every 2 Years:
•
Check and clean the flame arrestors (d)(h) - in case of discoloura-
tion or deformation consult Busch or the manufacturer of the
flame arrestor in any case
Every 10000 Operating Hours, At the Latest after
5 Years:
•
Have a major overhaul on the vacuum pump (Busch service)
WARNING
The approval of the vacuum pump for use in potentially explo-
sive areas remains valid only if the maintenance is conducted
regularly according to the maintenance schedule below and gen-
uine spare parts and consumables, approved for use in poten-
tially explosive areas by Busch, are used exclusively.
Maintenance work must be executed by qualified personnel,
specially instructed in the maintenance of this type of vacuum
pump by Busch.
DANGER
In case the vacuum pump conveyed gas that was contaminated
with foreign materials which are dangerous to health, harmful
material can reside in filters.
Danger to health during inspection, cleaning or replacement of
filters.
Danger to the environment.
Personal protective equipment must be worn during the handling
of contaminated filters.
Contaminated filters are special waste and must be disposed of
separately in compliance with applicable regulations.
CAUTION
During operation the surface of the vacuum pump may reach
temperatures of more than 70 °C.
Risk of burns!
WARNING
The proper assembly of flame arrestors is essential for their safe
function.
Risk of explosion in case of faulty assembly!
Flame arrestors must only be serviced by personnel that have re-
ceived specific training for this purpose either by Busch or by the
manufacturer of the flame arrestors.