5-44
MAINTENANCE
6. Clean the primary element (3) with dried
compressed air (294 to 490 kPa or 43 to
71 psi).
First blow the air from the inside of the
element along the pleats. Then blow the
air fr
om the outside and finally fr
om the
inside again.
7. Light up the inside of the primary element
(3) with a light bulb, inspect it, and replace
it if there are small holes or thin spots.
8. Install the primary element (3).
9. Install the dust cup (2) with its “
TOP ”
mark facing up or by aligning the arrows
“
/ ”, and then fasten it with the clamps
(1).
EVERY 250 HOURS
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