Komatsu PC138USLC Operation & Maintenance Manual page 279

MAINTENANCE PROCEDURE MAINTENANCE PROCEDURE
NOTICE
Never remove inner element (5). If it is removed, dust will enter and cause
engine trouble.
2. Remove outer element (4).
NOTICE
When cleaning cover (3), do not remove evacuator valve (6).
3. Clean the inside of the air cleaner body and the cover (3).
NOTICE
The inner element must not be used again even after cleaning. When
replacing the outer element, replace the inner element at the same time.
4. Direct dry compressed air (Max. 0.69 MPa (7 kg/cm
PSI)) from the inside of the outer element along its folds. Then
direct the compressed air from the outside along the folds, and
again from the inside.
1) Replace any outer element which has been cleaned 6
times or used for 1 year. Replace the inner element at the
same time.
2) 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.
3) Remove one seal from the element whenever the element
has been cleaned.
4 - 18
2
, 99.4
MAINTENANCE MAINTENANCE