Komatsu D61EX-24 Operation & Maintenance Manual page 332

MAINTENANCE
7.
Replace O-ring (7) of cover (3) with a new one.
8.
Set the arrow mark on cover (3) at the top, install to the air
cleaner body, then secure with clip (2).
9.
Push the button of dust indicator (1).
The yellow piston returns.
REMARK
• Immediately after a new element has been installed,
the yellow piston of the dust indicator may go to the
position between 3.7 to 5.0 kPa {0.04 to 0.05 kg/cm
0.57 to 0.71 PSI}, but this does not indicate any ab-
normality.
• For the machines installed with a pre-cleaner of large
intake resistance or a rain cap, immediately after a
new element has been installed, the yellow piston of
the dust indicator may go to the position between 5.0
to 6.2 kPa {0.05 to 0.06 kg/cm
this does not indicate any abnormality.
10. Close the engine side cover on the left side of the machine.
2
2
, 0.71 to 0.85 PSI}, but
MAINTENANCE PROCEDURE
,
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