Before pulling off the different connections, make sure that the intake
and exhaust lines of the vacuum pump correspond to atmospheric
pressure
When the maintenance work has been finished, follow the procedure
“Safety Lockout procedure”:
–
take off the label or warning board “Maintenance processing”
–
check the cooling liquid and oil levels according to the chapters
“Checking the oil level” and “Checking the cooling liquid level”
–
open the power box cover and check that the FDP1 thermal relay
is on manual reset position
–
close the cover
–
switch on the main disconnect switch
–
release the emergency stop button
–
switch on the water and nitrogen quick connections (outlet first,
then inlet)
–
make sure that the “Necessary installation instructions” are
followed
–
start the pump with the remote control (press on START button)
Maintenance program
NOTE
: The maintenance intervals depend on the operating conditions.
The following intervals are basic values, which can be shortened or
lengthened depending on operating conditions. In especially difficult
operating conditions such as, for example, a very dusty environment
the maintenance intervals must be shortened considerably.
Weekly:
l
Check the oil level and the colour of the oil (see “Checking the
oil”)
l
Check the level of the cooling liquid (see “Checking the cooling
liquid”)
l
Check the cooling water flow (see “Checking the cooling water”)
l
Check the nitrogen flow (see “Checking the nitrogen”)
l
Inspect the vacuum pump for oil leaks - if there are leaks, repair
the vacuum pump (Busch)
l
Inspect the vacuum pump for leaks of cooling liquid - if there are
leaks, repair the vacuum pump (Busch)
l
Inspect the vacuum pump for leaks of cooling water - if there are
leaks, repair the vacuum pump (Busch)
Monthly:
In the case of operation in a dusty environment:
u
Make sure that the operating room is clean and free of dust;
clean if necessary
l
Make sure that the vacuum pump has been switched off and that
it cannot be switched on again accidentally
l
Check the electrical connections
l
Carry out a visual inspection of the vacuum pump
Yearly:
l
Make sure that the vacuum pump has been switched off and that
it cannot be switched on again accidentally
If the intake is equipped with a sieve:
u
Check the sieve at the intake and clean if necessary
l
Check the measuring and safety equipment for working order
If the discharge is equipped with a sound absorber:
u
Clean the sound absorber
If the discharge is equipped with a leak-protection non-return valve:
u
Clean the leak-protection non-return valve
l
Drain the cooling liquid (see “Draining the cooling liquid”)
l
Check the ventilator filter, clean if necessary
If the cooling water line is equipped with a filter:
u
Check the filter and clean or replace if necessary
l
Check the seals and replace if necessary
l
Check the intake and discharge lines and clean or replace if neces-
sary
Every 16 000 hours of operation, at the latest
after 4 years:
l
Drain the oil (see “Draining the oil”)
l
A main inspection of the vacuum pump (Busch)
Lock Out/ Tag Out procedure
l
Stop the pump with the remote control (press on STOP button du-
ring 10s)
l
Press on emergency stop button
l
Switch off the main disconnect switch
l
Switch off the customer’s power supply
l
Switch off the water and nitrogen quick connections (inlet first,
then outlet)
l
Put the label or warning board “Maintenance processing” on or
next to the pump
Safety Lockout procedure
l
Take off the label or warning board “Maintenance processing”
l
Check the cooling liquid and oil levels according to the chapters
“Checking the oil level” and “Checking the cooling liquid level”
l
Open the power box cover and check that the FDP1 thermal relay
is on manual reset position
l
Close the cover
l
Switch on the main disconnect switch
l
Release the emergency stop button
l
Switch on the water and nitrogen quick connections (outlet first,
then inlet)
l
Make sure that the “Necessary installation instructions” are follo-
wed
l
Start the pump with the remote control (press on START button)
Checking the oil
Checking the oil level
l
Make sure that the vacuum pump has been switched off and that
it cannot be switched on again accidentally
l
Indication of the oil level on the various oil sight glasses
If the oil level does not reach the MIN marking:
u
Top up with oil (see “Refilling oil”)
If the oil level exceeds the MAX marking:
u
Check the condensate drain
l
Drain the oil (see “Draining the oil”)
Refilling oil
NOTE
: Oil does not normally have to be refilled outside the
recommended oil change intervals. A drop in the oil level indicates a
fault (see “Troubleshooting” Busch PLC and Busch LCD).
CAUTION
Only fill in oil through the oil filler opening.
DS 0080-2000 G
Maintenance
0870772712 (En)
Page 19
