Maintenance and care
35
Changing the filter cartridge
Caution:
No dust must get to the clear air end.
Remove the hex hut, take out the con-
taminated cartridge and fit a new one.
Clean the filter housing with a damp cloth,
especially at the sealing face for the car-
tridge.
Caution:
The engine must not be run without a
main cartridge.
Cleaning the cartridge
Caution:
The filter cartridge should normally be
changed. Clean it only in emergencies
(e.g. when no replacement is avail-
able).
Blowing out (wear goggles)
To do this fit a pipe to the compressed air
gun. The end of the pipe should be bent
by approx. 90°. The pipe must be long
enough to reach the bottom of the car-
tridge.
Blow the cartridge out from the inside with
dry compressed air (max. 5 bar) by mov-
ing the pipe up and down inside the car-
tridge until no more dust is released.
Checking the cartridge
When a cartridge has been cleaned it
must be examined for damage before it is
refitted, e.g. damage to the paper bag and
rubber seals. Check also for compression
of or dents in the metal jacket.
Tears and holes in the paper bag can be
found by shining a torch into the bag.
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