Komatsu D65EX-12 Operation & Maintenance Manual page 190

Bulldozer
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SERVICE PROCEDURE
CLEANING OUTER ELEMENT
1.
Open the left engine side cover.
2.
Loosen bolt (2), remove cover (3).
3.
Remove the wing nut (4) and the seal washer (5), and
take out the outer element (6).
4.
Clean the air cleaner housing interior and the cover.
5.
Direct dry compressed air (less than 0.69MPa (7kg/cm
,99.4 PSI)) to the outer element from inside along its
folds, then direct it from outside along its folds and again
from inside.
1)
Remove one seal from the element whenever the
element has been cleaned.
2)
Replace the outer element if it has been cleaned 6
times repeatedly or used throughout a year. Replace
the inner element at the same time.
3)
Replace both inner and outer elements when the dust indicator red piston appears soon after installing
the cleaned outer element even though it has not been cleaned 6 times.
4)
Check inner element mounting nuts (8) for looseness and, if necessary, retighten.
6.
If small holes or thinner parts are found on the element
when it is checked by shining a light through it after
cleaning, replace the element.
NOTICE
When cleaning the element, do not hit or beat it against
anything.
Do not use an element whose folds, gasket or seal are
damaged.
4-22
2
MAINTENANCE

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