BUSCH COBRA BC 0200 F, Installation And Maintenance Instructions Manual

Page: 16 / 24

When the maintenance work has been finished, follow the procedure
“Safety Lockout procedure”:
–
take off the label or warning board “Maintenance processing”
–
check the oil level according to the chapter “Checking the oil
level”
–
switch on the main breaker
–
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 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 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
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
necessary
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
during 10s)
l Press on emergency stop button
l Switch off the main breaker
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 oil level according to the chapter “Checking the oil
level”
l Switch on the main breaker
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
followed
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 oil sight glass
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 recom-
mended oil change intervals. A drop in the oil level indicates a fault
(see “Troubleshooting”).
CAUTION
Only fill in oil through the oil filler opening.
CAUTION
Danger of burns when the oil filler cap is open.
Danger of injuries when the oil filler cap is not screwed on properly.
Only unscrew the oil filler cap when the vacuum pump has been
switched off.
The vacuum pump may only be switched on when the oil filler cap
is properly closed and tight.
l Make sure that the vacuum pump has been switched off and that
it cannot be switched on again accidentally
l Unscrew the oil filler cap (OFP)
l Fill in oil up to the middle of the oil sight glass
l Make sure that the oil level lies between the MIN and MAX
markings on the oil sight glass
Maintenance
BC 0200 F
Page 16
0870767417 (En)