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OM-481 Page 23
7-3. Servicing Air Cleaner
aircleaner1 2/01 – ST-153 929-B / ST-153 585 / Ref. S-0698-B
Y Stop engine.
Y Do not run engine without air
cleaner or with dirty element. En-
gine damage caused by using a
damaged element is not covered
by the warranty.
. The air cleaner primary element can
be cleaned but the dirt holding capac-
ity of the filter is reduced with each
cleaning. The chance of dirt reaching
the clean side of the filter while clean-
ing and the possibility of filter damage
makes cleaning a risk. Consider the
risk of unwarrantable equipment
damage when determining whether
to clean or replace the primary ele-
ment.
If you decide to clean the primary ele-
ment, we strongly recommend instal-
ling an optional safety element to pro-
vide additional engine protection.
Never clean a safety element. Re-
place the safety element after servic-
ing the primary element three times.
Clean or replace primary element if dirty
(see note above before cleaning). Re-
place primary element if damaged. Re-
place primary element yearly or after six
cleanings.
1 Housing
2 Safety Element (Optional)
3 Primary Element
4 Dust Cap
5 Dust Ejector
To clean air filter:
Wipe off cap and housing. Remove cap
and dump out dust. Remove element(s).
Wipe dust from inside cap and housing
with damp cloth. Reinstall safety element
(if present). Reinstall cap.
Y Do not clean housing with air
hose.
Clean primary element with compressed
air only.
Air pressure must not exceed 100 psi
(690 kPa). Use 1/8 in (3 mm) nozzle and
keep nozzle at least 2 in (51 mm) from
inside of element. Replace primary ele-
ment if it has holes or damaged gaskets.
Reinstall primary element and cap (dust
ejector down).
Blow Inspect
41 3
5
Keep nozzle
2 in (51 mm)
from element.
2
OFF
START
RUN
Optional