BUSCH FOSSA Notice D'instructions page 23

Terminal box connection 110-115 V
50/ 60 Hz
Fan 1: white
Fan 2: brown
Fan 3: green
Fan 4: yellow
Operation advice
These vacuum pumps can be used to evacuate dry and neutral gases,
which are not aggressive or poisonous. Not to be used to suck off igni-
table gas mixtures.
Other agents must not be transported. In case of doubt, please contact
your local Busch agency.
CAUTION
Liquid and solid particles must not enter the pump.
Not to be used to evacuate aggressive gases or explosive gas mixtu-
res.
Before operating with process gases, run shortly the pump at the at-
mospheric pressure to remove the possible dusts accumulated in the
pump during the operation.
Purge the pump with air after use.
Max. permissible number of startings per hour: 6.
Maintenance
WARNING
The operating instructions for the FOSSA, FO 0015 A must be read
and understood prior to any installation work, start-up, or mainte-
nance on the vacuum pump. If in any doubt, please contact your
local Busch representative.
CAUTION
Dismantling of the vacuum pump may only be done by duly autho-
rized staff. Before dismantling, the user of the vacuum pump must
fill out a form "Declaration of Decontamination of Vacuum Equip-
ment and Components", in which any potential danger and the cor-
responding safety measures to be taken must be indicated.
Without such an official form, signed by a responsible
representative, the pump may not be dismantled.
The vacuum pump must be switched off and isolated against acci-
dental re-start for all maintenance.
FO 0015 A
To reverse rotation
=> reverse Z1-Z2
Service schedule
Service schedule Service job
Mesh Cleaning
Gas ballast valve (option) Cleaning
Gas ballast valve (option) Replacing
Tip seal Replacing
Bearings replacement Replacement
Complete service Only by Busch main-
tenance service
engineer
The frequency of maintenance may have to be adjusted if the pump is
used to pump aggressive gases (like solvents, organics substances,
acids, ...) or if the pump operates in difficult conditions (like heavy cy-
cling, high temperatures, ...).
Safety advice
All safety measures indicated in these maintenance and repair instruc-
tions must be observed.
CAUTION
The FOSSA vacuum pump must be disconnected from the electrical
power supply and the vacuum circuit prior to the disassembly.
Cleaning of mesh
12
11
10
9 Plug screw
10 Mesh screen
11 O-ring
12 Inlet connection
The mesh should be inspected yearly for dirt. A dirty and partially
blocked mesh screen can lower the flow rate. If necessary, it must
be cleaned.
•
Unscrew the inlet fitting (12) with the tool N° 0813 563 062, re-
move the mesh screen (10).
•
Remove any debris trapped in the mesh screen.
•
If necessary, clean the mesh screen with a cleaning solution which is
suitable for the substances drawn through the pump.
Interval
depending on the
applications
8000 h, or as required
depending on the
applications
Every 2 years, or as
required
depending on the
applications
8000 h, or as required
depending on the
applications
Every 20000 hours of
operation or every 4
years
9
Operation advice
Seite / Page 23