.
OPERATION
EXPLANATION OF COMPONENTS
DUST INDICATOR
This device indicates clogging of the air cleaner.
Depending on the degree of clogging of the element, red line (1)
appears in the transparent portion. If red line (1) indicates 7.5 kPa
(30 INCHES H
2
O) (0.076 kg/cm
2
, 1.1 PSI), clean the element
immediately.
After cleaning, press top portion (2) of the indicator to return red
line (1) to its original position.
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