Komatsu GALEO HM350-2 Operation & Maintenance Manual page 211

SERVICE PROCEDURE
CLEAN OUTER ELEMENT
Dirt will fly if compressed air is used for cleaning. If dirt gets into your eyes it may cause blindness, and if you breathe in the
dust it may damage your lungs. To prevent these problems, always wear safety glasses, dust mask, and other protective
equipment.
When pulling out the air cleaner element, make sure that you are standing on a firm place. If your footing is not secure when
you carry out the operation, there is danger of falling and suffering injury.
NOTICE
When cleaning the element, clean only the outer element. Do not clean the inner element. There is danger that dirt and dust may
get inside the engine when the outer element is being cleaned, and this will damage the engine.
1. Stop the engine.
2. Remove 6 hooks (5) of dust cup (4), then remove the dust cup.
3. Hold outer element (6) with both hands, and move it up and
down and to the left and right while pulling it out.
4. Hold inner element (7) so that it does not come out, and clean
the inside of the air cleaner body with a dry cloth.
5. Use a dry cloth or compressed air to clean off the dirt stuck to
dust cup (4) and vacuator valve (8).
6. Check that there are no cracks in the lip of the vacuator valve
(8). If any cracks are found, replace with a new part.
NOTICE
If a damaged element is used, dust will pass the air cleaner filter and be sucked into the engine. Do not use any cleaning
method that will damage the element. If the element is damaged, replace it with a new element.
Never tap or hit the element against any other object when cleaning it.
Do not use an element with damaged folds or a damaged gasket or seal.
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WARNING
MAINTENANCE