Man D 2866 LE 201 Operating Instructions Manual page 31

Safety cartridge
When the main cartridge is being serviced the safety cartridge remains in the filter hous-
ing. The engine must not be run without the main cartridge.
Safety cartridges must be neither cleaned nor re-used.
Safety cartridges must be changed:
− at the latest after being in use for two
years
− if, after the main cartridge has been
serviced (changed), the contamination
gauge responds again immediately
− if the main cartridge is defective
When the main cartridge has been re-
moved the safety cartridge is accessible
and can be removed also.
Remove the hex nut.
Pull out the safety cartridge.
Insert a new safety cartridge. Refit and
tighten the hex nut.
Maintenance and care
31